Add common subchart

2023-05-13 17:55:33 +02:00 · 2023-05-13 17:55:33 +02:00 · a20ae22090
parent ec3b2e3286
commit a20ae22090
24 changed files with 1715 additions and 2 deletions
--- a/charts/json-server/Chart.yaml
+++ b/charts/json-server/Chart.yaml
@ -6,10 +6,10 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: v0.3.1
+version: v0.4.0

 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "v0.3.1"
+appVersion: "v0.4.0"
--- a/charts/json-server/charts/common/.helmignore
+++ b/charts/json-server/charts/common/.helmignore
@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
--- a/charts/json-server/charts/common/Chart.yaml
+++ b/charts/json-server/charts/common/Chart.yaml
@ -0,0 +1,24 @@
+annotations:
+  category: Infrastructure
+  licenses: Apache-2.0
+apiVersion: v2
+appVersion: 2.2.5
+description: A Library Helm Chart for grouping common logic between bitnami charts.
+  This chart is not deployable by itself.
+home: https://github.com/bitnami/charts/tree/main/bitnami/common
+icon: https://bitnami.com/downloads/logos/bitnami-mark.png
+keywords:
+- common
+- helper
+- template
+- function
+- bitnami
+maintainers:
+- name: Bitnami
+  url: https://github.com/bitnami/charts
+name: common
+sources:
+- https://github.com/bitnami/charts
+- https://www.bitnami.com/
+type: library
+version: 2.2.5
--- a/charts/json-server/charts/common/README.md
+++ b/charts/json-server/charts/common/README.md
@ -0,0 +1,233 @@
+# Bitnami Common Library Chart
+
+A [Helm Library Chart](https://helm.sh/docs/topics/library_charts/#helm) for grouping common logic between Bitnami charts.
+
+## TL;DR
+
+```yaml
+dependencies:
+  - name: common
+    version: 1.x.x
+    repository: oci://registry-1.docker.io/bitnamicharts
+```
+
+```console
+helm dependency update
+```
+
+```yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "common.names.fullname" . }}
+data:
+  myvalue: "Hello World"
+```
+
+## Introduction
+
+This chart provides a common template helpers which can be used to develop new charts using [Helm](https://helm.sh) package manager.
+
+Bitnami charts can be used with [Kubeapps](https://kubeapps.dev/) for deployment and management of Helm Charts in clusters.
+
+## Prerequisites
+
+- Kubernetes 1.19+
+- Helm 3.2.0+
+
+## Parameters
+
+## Special input schemas
+
+### ImageRoot
+
+```yaml
+registry:
+  type: string
+  description: Docker registry where the image is located
+  example: docker.io
+
+repository:
+  type: string
+  description: Repository and image name
+  example: bitnami/nginx
+
+tag:
+  type: string
+  description: image tag
+  example: 1.16.1-debian-10-r63
+
+pullPolicy:
+  type: string
+  description: Specify a imagePullPolicy. Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
+
+pullSecrets:
+  type: array
+  items:
+    type: string
+  description: Optionally specify an array of imagePullSecrets (evaluated as templates).
+
+debug:
+  type: boolean
+  description: Set to true if you would like to see extra information on logs
+  example: false
+
+## An instance would be:
+# registry: docker.io
+# repository: bitnami/nginx
+# tag: 1.16.1-debian-10-r63
+# pullPolicy: IfNotPresent
+# debug: false
+```
+
+### Persistence
+
+```yaml
+enabled:
+  type: boolean
+  description: Whether enable persistence.
+  example: true
+
+storageClass:
+  type: string
+  description: Ghost data Persistent Volume Storage Class, If set to "-", storageClassName: "" which disables dynamic provisioning.
+  example: "-"
+
+accessMode:
+  type: string
+  description: Access mode for the Persistent Volume Storage.
+  example: ReadWriteOnce
+
+size:
+  type: string
+  description: Size the Persistent Volume Storage.
+  example: 8Gi
+
+path:
+  type: string
+  description: Path to be persisted.
+  example: /bitnami
+
+## An instance would be:
+# enabled: true
+# storageClass: "-"
+# accessMode: ReadWriteOnce
+# size: 8Gi
+# path: /bitnami
+```
+
+### ExistingSecret
+
+```yaml
+name:
+  type: string
+  description: Name of the existing secret.
+  example: mySecret
+keyMapping:
+  description: Mapping between the expected key name and the name of the key in the existing secret.
+  type: object
+
+## An instance would be:
+# name: mySecret
+# keyMapping:
+#   password: myPasswordKey
+```
+
+#### Example of use
+
+When we store sensitive data for a deployment in a secret, some times we want to give to users the possibility of using theirs existing secrets.
+
+```yaml
+# templates/secret.yaml
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "common.names.fullname" . }}
+  labels:
+    app: {{ include "common.names.fullname" . }}
+type: Opaque
+data:
+  password: {{ .Values.password | b64enc | quote }}
+
+# templates/dpl.yaml
+---
+...
+      env:
+        - name: PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ include "common.secrets.name" (dict "existingSecret" .Values.existingSecret "context" $) }}
+              key: {{ include "common.secrets.key" (dict "existingSecret" .Values.existingSecret "key" "password") }}
+...
+
+# values.yaml
+---
+name: mySecret
+keyMapping:
+  password: myPasswordKey
+```
+
+### ValidateValue
+
+#### NOTES.txt
+
+```console
+{{- $validateValueConf00 := (dict "valueKey" "path.to.value00" "secret" "secretName" "field" "password-00") -}}
+{{- $validateValueConf01 := (dict "valueKey" "path.to.value01" "secret" "secretName" "field" "password-01") -}}
+
+{{ include "common.validations.values.multiple.empty" (dict "required" (list $validateValueConf00 $validateValueConf01) "context" $) }}
+```
+
+If we force those values to be empty we will see some alerts
+
+```console
+helm install test mychart --set path.to.value00="",path.to.value01=""
+    'path.to.value00' must not be empty, please add '--set path.to.value00=$PASSWORD_00' to the command. To get the current value:
+
+        export PASSWORD_00=$(kubectl get secret --namespace default secretName -o jsonpath="{.data.password-00}" | base64 -d)
+
+    'path.to.value01' must not be empty, please add '--set path.to.value01=$PASSWORD_01' to the command. To get the current value:
+
+        export PASSWORD_01=$(kubectl get secret --namespace default secretName -o jsonpath="{.data.password-01}" | base64 -d)
+```
+
+## Upgrading
+
+### To 1.0.0
+
+[On November 13, 2020, Helm v2 support was formally finished](https://github.com/helm/charts#status-of-the-project), this major version is the result of the required changes applied to the Helm Chart to be able to incorporate the different features added in Helm v3 and to be consistent with the Helm project itself regarding the Helm v2 EOL.
+
+#### What changes were introduced in this major version?
+
+- Previous versions of this Helm Chart use `apiVersion: v1` (installable by both Helm 2 and 3), this Helm Chart was updated to `apiVersion: v2` (installable by Helm 3 only). [Here](https://helm.sh/docs/topics/charts/#the-apiversion-field) you can find more information about the `apiVersion` field.
+- Use `type: library`. [Here](https://v3.helm.sh/docs/faq/#library-chart-support) you can find more information.
+- The different fields present in the *Chart.yaml* file has been ordered alphabetically in a homogeneous way for all the Bitnami Helm Charts
+
+#### Considerations when upgrading to this version
+
+- If you want to upgrade to this version from a previous one installed with Helm v3, you shouldn't face any issues
+- If you want to upgrade to this version using Helm v2, this scenario is not supported as this version doesn't support Helm v2 anymore
+- If you installed the previous version with Helm v2 and wants to upgrade to this version with Helm v3, please refer to the [official Helm documentation](https://helm.sh/docs/topics/v2_v3_migration/#migration-use-cases) about migrating from Helm v2 to v3
+
+#### Useful links
+
+- <https://docs.bitnami.com/tutorials/resolve-helm2-helm3-post-migration-issues/>
+- <https://helm.sh/docs/topics/v2_v3_migration/>
+- <https://helm.sh/blog/migrate-from-helm-v2-to-helm-v3/>
+
+## License
+
+Copyright &copy; 2023 Bitnami
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+<http://www.apache.org/licenses/LICENSE-2.0>
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
--- a/charts/json-server/charts/common/templates/_affinities.tpl
+++ b/charts/json-server/charts/common/templates/_affinities.tpl
@ -0,0 +1,106 @@
+{{/* vim: set filetype=mustache: */}}
+
+{{/*
+Return a soft nodeAffinity definition
+{{ include "common.affinities.nodes.soft" (dict "key" "FOO" "values" (list "BAR" "BAZ")) -}}
+*/}}
+{{- define "common.affinities.nodes.soft" -}}
+preferredDuringSchedulingIgnoredDuringExecution:
+  - preference:
+      matchExpressions:
+        - key: {{ .key }}
+          operator: In
+          values:
+            {{- range .values }}
+            - {{ . | quote }}
+            {{- end }}
+    weight: 1
+{{- end -}}
+
+{{/*
+Return a hard nodeAffinity definition
+{{ include "common.affinities.nodes.hard" (dict "key" "FOO" "values" (list "BAR" "BAZ")) -}}
+*/}}
+{{- define "common.affinities.nodes.hard" -}}
+requiredDuringSchedulingIgnoredDuringExecution:
+  nodeSelectorTerms:
+    - matchExpressions:
+        - key: {{ .key }}
+          operator: In
+          values:
+            {{- range .values }}
+            - {{ . | quote }}
+            {{- end }}
+{{- end -}}
+
+{{/*
+Return a nodeAffinity definition
+{{ include "common.affinities.nodes" (dict "type" "soft" "key" "FOO" "values" (list "BAR" "BAZ")) -}}
+*/}}
+{{- define "common.affinities.nodes" -}}
+  {{- if eq .type "soft" }}
+    {{- include "common.affinities.nodes.soft" . -}}
+  {{- else if eq .type "hard" }}
+    {{- include "common.affinities.nodes.hard" . -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Return a topologyKey definition
+{{ include "common.affinities.topologyKey" (dict "topologyKey" "BAR") -}}
+*/}}
+{{- define "common.affinities.topologyKey" -}}
+{{ .topologyKey | default "kubernetes.io/hostname" -}}
+{{- end -}}
+
+{{/*
+Return a soft podAffinity/podAntiAffinity definition
+{{ include "common.affinities.pods.soft" (dict "component" "FOO" "extraMatchLabels" .Values.extraMatchLabels "topologyKey" "BAR" "context" $) -}}
+*/}}
+{{- define "common.affinities.pods.soft" -}}
+{{- $component := default "" .component -}}
+{{- $extraMatchLabels := default (dict) .extraMatchLabels -}}
+preferredDuringSchedulingIgnoredDuringExecution:
+  - podAffinityTerm:
+      labelSelector:
+        matchLabels: {{- (include "common.labels.matchLabels" .context) | nindent 10 }}
+          {{- if not (empty $component) }}
+          {{ printf "app.kubernetes.io/component: %s" $component }}
+          {{- end }}
+          {{- range $key, $value := $extraMatchLabels }}
+          {{ $key }}: {{ $value | quote }}
+          {{- end }}
+      topologyKey: {{ include "common.affinities.topologyKey" (dict "topologyKey" .topologyKey) }}
+    weight: 1
+{{- end -}}
+
+{{/*
+Return a hard podAffinity/podAntiAffinity definition
+{{ include "common.affinities.pods.hard" (dict "component" "FOO" "extraMatchLabels" .Values.extraMatchLabels "topologyKey" "BAR" "context" $) -}}
+*/}}
+{{- define "common.affinities.pods.hard" -}}
+{{- $component := default "" .component -}}
+{{- $extraMatchLabels := default (dict) .extraMatchLabels -}}
+requiredDuringSchedulingIgnoredDuringExecution:
+  - labelSelector:
+      matchLabels: {{- (include "common.labels.matchLabels" .context) | nindent 8 }}
+        {{- if not (empty $component) }}
+        {{ printf "app.kubernetes.io/component: %s" $component }}
+        {{- end }}
+        {{- range $key, $value := $extraMatchLabels }}
+        {{ $key }}: {{ $value | quote }}
+        {{- end }}
+    topologyKey: {{ include "common.affinities.topologyKey" (dict "topologyKey" .topologyKey) }}
+{{- end -}}
+
+{{/*
+Return a podAffinity/podAntiAffinity definition
+{{ include "common.affinities.pods" (dict "type" "soft" "key" "FOO" "values" (list "BAR" "BAZ")) -}}
+*/}}
+{{- define "common.affinities.pods" -}}
+  {{- if eq .type "soft" }}
+    {{- include "common.affinities.pods.soft" . -}}
+  {{- else if eq .type "hard" }}
+    {{- include "common.affinities.pods.hard" . -}}
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_capabilities.tpl
+++ b/charts/json-server/charts/common/templates/_capabilities.tpl
@ -0,0 +1,154 @@
+{{/* vim: set filetype=mustache: */}}
+
+{{/*
+Return the target Kubernetes version
+*/}}
+{{- define "common.capabilities.kubeVersion" -}}
+{{- if .Values.global }}
+    {{- if .Values.global.kubeVersion }}
+    {{- .Values.global.kubeVersion -}}
+    {{- else }}
+    {{- default .Capabilities.KubeVersion.Version .Values.kubeVersion -}}
+    {{- end -}}
+{{- else }}
+{{- default .Capabilities.KubeVersion.Version .Values.kubeVersion -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for poddisruptionbudget.
+*/}}
+{{- define "common.capabilities.policy.apiVersion" -}}
+{{- if semverCompare "<1.21-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "policy/v1beta1" -}}
+{{- else -}}
+{{- print "policy/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for networkpolicy.
+*/}}
+{{- define "common.capabilities.networkPolicy.apiVersion" -}}
+{{- if semverCompare "<1.7-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "extensions/v1beta1" -}}
+{{- else -}}
+{{- print "networking.k8s.io/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for cronjob.
+*/}}
+{{- define "common.capabilities.cronjob.apiVersion" -}}
+{{- if semverCompare "<1.21-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "batch/v1beta1" -}}
+{{- else -}}
+{{- print "batch/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for deployment.
+*/}}
+{{- define "common.capabilities.deployment.apiVersion" -}}
+{{- if semverCompare "<1.14-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "extensions/v1beta1" -}}
+{{- else -}}
+{{- print "apps/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for statefulset.
+*/}}
+{{- define "common.capabilities.statefulset.apiVersion" -}}
+{{- if semverCompare "<1.14-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "apps/v1beta1" -}}
+{{- else -}}
+{{- print "apps/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for ingress.
+*/}}
+{{- define "common.capabilities.ingress.apiVersion" -}}
+{{- if .Values.ingress -}}
+{{- if .Values.ingress.apiVersion -}}
+{{- .Values.ingress.apiVersion -}}
+{{- else if semverCompare "<1.14-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "extensions/v1beta1" -}}
+{{- else if semverCompare "<1.19-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "networking.k8s.io/v1beta1" -}}
+{{- else -}}
+{{- print "networking.k8s.io/v1" -}}
+{{- end }}
+{{- else if semverCompare "<1.14-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "extensions/v1beta1" -}}
+{{- else if semverCompare "<1.19-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "networking.k8s.io/v1beta1" -}}
+{{- else -}}
+{{- print "networking.k8s.io/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for RBAC resources.
+*/}}
+{{- define "common.capabilities.rbac.apiVersion" -}}
+{{- if semverCompare "<1.17-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "rbac.authorization.k8s.io/v1beta1" -}}
+{{- else -}}
+{{- print "rbac.authorization.k8s.io/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for CRDs.
+*/}}
+{{- define "common.capabilities.crd.apiVersion" -}}
+{{- if semverCompare "<1.19-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "apiextensions.k8s.io/v1beta1" -}}
+{{- else -}}
+{{- print "apiextensions.k8s.io/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for APIService.
+*/}}
+{{- define "common.capabilities.apiService.apiVersion" -}}
+{{- if semverCompare "<1.10-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "apiregistration.k8s.io/v1beta1" -}}
+{{- else -}}
+{{- print "apiregistration.k8s.io/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for Horizontal Pod Autoscaler.
+*/}}
+{{- define "common.capabilities.hpa.apiVersion" -}}
+{{- if semverCompare "<1.23-0" (include "common.capabilities.kubeVersion" .context) -}}
+{{- if .beta2 -}}
+{{- print "autoscaling/v2beta2" -}}
+{{- else -}}
+{{- print "autoscaling/v2beta1" -}}
+{{- end -}}
+{{- else -}}
+{{- print "autoscaling/v2" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Returns true if the used Helm version is 3.3+.
+A way to check the used Helm version was not introduced until version 3.3.0 with .Capabilities.HelmVersion, which contains an additional "{}}"  structure.
+This check is introduced as a regexMatch instead of {{ if .Capabilities.HelmVersion }} because checking for the key HelmVersion in <3.3 results in a "interface not found" error.
+**To be removed when the catalog's minimun Helm version is 3.3**
+*/}}
+{{- define "common.capabilities.supportsHelmVersion" -}}
+{{- if regexMatch "{(v[0-9])*[^}]*}}$" (.Capabilities | toString ) }}
+  {{- true -}}
+{{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_errors.tpl
+++ b/charts/json-server/charts/common/templates/_errors.tpl
@ -0,0 +1,23 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Through error when upgrading using empty passwords values that must not be empty.
+
+Usage:
+{{- $validationError00 := include "common.validations.values.single.empty" (dict "valueKey" "path.to.password00" "secret" "secretName" "field" "password-00") -}}
+{{- $validationError01 := include "common.validations.values.single.empty" (dict "valueKey" "path.to.password01" "secret" "secretName" "field" "password-01") -}}
+{{ include "common.errors.upgrade.passwords.empty" (dict "validationErrors" (list $validationError00 $validationError01) "context" $) }}
+
+Required password params:
+  - validationErrors - String - Required. List of validation strings to be return, if it is empty it won't throw error.
+  - context - Context - Required. Parent context.
+*/}}
+{{- define "common.errors.upgrade.passwords.empty" -}}
+  {{- $validationErrors := join "" .validationErrors -}}
+  {{- if and $validationErrors .context.Release.IsUpgrade -}}
+    {{- $errorString := "\nPASSWORDS ERROR: You must provide your current passwords when upgrading the release." -}}
+    {{- $errorString = print $errorString "\n                 Note that even after reinstallation, old credentials may be needed as they may be kept in persistent volume claims." -}}
+    {{- $errorString = print $errorString "\n                 Further information can be obtained at https://docs.bitnami.com/general/how-to/troubleshoot-helm-chart-issues/#credential-errors-while-upgrading-chart-releases" -}}
+    {{- $errorString = print $errorString "\n%s" -}}
+    {{- printf $errorString $validationErrors | fail -}}
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_images.tpl
+++ b/charts/json-server/charts/common/templates/_images.tpl
@ -0,0 +1,80 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Return the proper image name
+{{ include "common.images.image" ( dict "imageRoot" .Values.path.to.the.image "global" .Values.global ) }}
+*/}}
+{{- define "common.images.image" -}}
+{{- $registryName := .imageRoot.registry -}}
+{{- $repositoryName := .imageRoot.repository -}}
+{{- $separator := ":" -}}
+{{- $termination := .imageRoot.tag | toString -}}
+{{- if .global }}
+    {{- if .global.imageRegistry }}
+     {{- $registryName = .global.imageRegistry -}}
+    {{- end -}}
+{{- end -}}
+{{- if .imageRoot.digest }}
+    {{- $separator = "@" -}}
+    {{- $termination = .imageRoot.digest | toString -}}
+{{- end -}}
+{{- if $registryName }}
+    {{- printf "%s/%s%s%s" $registryName $repositoryName $separator $termination -}}
+{{- else -}}
+    {{- printf "%s%s%s"  $repositoryName $separator $termination -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the proper Docker Image Registry Secret Names (deprecated: use common.images.renderPullSecrets instead)
+{{ include "common.images.pullSecrets" ( dict "images" (list .Values.path.to.the.image1, .Values.path.to.the.image2) "global" .Values.global) }}
+*/}}
+{{- define "common.images.pullSecrets" -}}
+  {{- $pullSecrets := list }}
+
+  {{- if .global }}
+    {{- range .global.imagePullSecrets -}}
+      {{- $pullSecrets = append $pullSecrets . -}}
+    {{- end -}}
+  {{- end -}}
+
+  {{- range .images -}}
+    {{- range .pullSecrets -}}
+      {{- $pullSecrets = append $pullSecrets . -}}
+    {{- end -}}
+  {{- end -}}
+
+  {{- if (not (empty $pullSecrets)) }}
+imagePullSecrets:
+    {{- range $pullSecrets }}
+  - name: {{ . }}
+    {{- end }}
+  {{- end }}
+{{- end -}}
+
+{{/*
+Return the proper Docker Image Registry Secret Names evaluating values as templates
+{{ include "common.images.renderPullSecrets" ( dict "images" (list .Values.path.to.the.image1, .Values.path.to.the.image2) "context" $) }}
+*/}}
+{{- define "common.images.renderPullSecrets" -}}
+  {{- $pullSecrets := list }}
+  {{- $context := .context }}
+
+  {{- if $context.Values.global }}
+    {{- range $context.Values.global.imagePullSecrets -}}
+      {{- $pullSecrets = append $pullSecrets (include "common.tplvalues.render" (dict "value" . "context" $context)) -}}
+    {{- end -}}
+  {{- end -}}
+
+  {{- range .images -}}
+    {{- range .pullSecrets -}}
+      {{- $pullSecrets = append $pullSecrets (include "common.tplvalues.render" (dict "value" . "context" $context)) -}}
+    {{- end -}}
+  {{- end -}}
+
+  {{- if (not (empty $pullSecrets)) }}
+imagePullSecrets:
+    {{- range $pullSecrets }}
+  - name: {{ . }}
+    {{- end }}
+  {{- end }}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_ingress.tpl
+++ b/charts/json-server/charts/common/templates/_ingress.tpl
@ -0,0 +1,68 @@
+{{/* vim: set filetype=mustache: */}}
+
+{{/*
+Generate backend entry that is compatible with all Kubernetes API versions.
+
+Usage:
+{{ include "common.ingress.backend" (dict "serviceName" "backendName" "servicePort" "backendPort" "context" $) }}
+
+Params:
+  - serviceName - String. Name of an existing service backend
+  - servicePort - String/Int. Port name (or number) of the service. It will be translated to different yaml depending if it is a string or an integer.
+  - context - Dict - Required. The context for the template evaluation.
+*/}}
+{{- define "common.ingress.backend" -}}
+{{- $apiVersion := (include "common.capabilities.ingress.apiVersion" .context) -}}
+{{- if or (eq $apiVersion "extensions/v1beta1") (eq $apiVersion "networking.k8s.io/v1beta1") -}}
+serviceName: {{ .serviceName }}
+servicePort: {{ .servicePort }}
+{{- else -}}
+service:
+  name: {{ .serviceName }}
+  port:
+    {{- if typeIs "string" .servicePort }}
+    name: {{ .servicePort }}
+    {{- else if or (typeIs "int" .servicePort) (typeIs "float64" .servicePort) }}
+    number: {{ .servicePort | int }}
+    {{- end }}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Print "true" if the API pathType field is supported
+Usage:
+{{ include "common.ingress.supportsPathType" . }}
+*/}}
+{{- define "common.ingress.supportsPathType" -}}
+{{- if (semverCompare "<1.18-0" (include "common.capabilities.kubeVersion" .)) -}}
+{{- print "false" -}}
+{{- else -}}
+{{- print "true" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Returns true if the ingressClassname field is supported
+Usage:
+{{ include "common.ingress.supportsIngressClassname" . }}
+*/}}
+{{- define "common.ingress.supportsIngressClassname" -}}
+{{- if semverCompare "<1.18-0" (include "common.capabilities.kubeVersion" .) -}}
+{{- print "false" -}}
+{{- else -}}
+{{- print "true" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return true if cert-manager required annotations for TLS signed
+certificates are set in the Ingress annotations
+Ref: https://cert-manager.io/docs/usage/ingress/#supported-annotations
+Usage:
+{{ include "common.ingress.certManagerRequest" ( dict "annotations" .Values.path.to.the.ingress.annotations ) }}
+*/}}
+{{- define "common.ingress.certManagerRequest" -}}
+{{ if or (hasKey .annotations "cert-manager.io/cluster-issuer") (hasKey .annotations "cert-manager.io/issuer") (hasKey .annotations "kubernetes.io/tls-acme") }}
+    {{- true -}}
+{{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_labels.tpl
+++ b/charts/json-server/charts/common/templates/_labels.tpl
@ -0,0 +1,18 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Kubernetes standard labels
+*/}}
+{{- define "common.labels.standard" -}}
+app.kubernetes.io/name: {{ include "common.names.name" . }}
+helm.sh/chart: {{ include "common.names.chart" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Labels to use on deploy.spec.selector.matchLabels and svc.spec.selector
+*/}}
+{{- define "common.labels.matchLabels" -}}
+app.kubernetes.io/name: {{ include "common.names.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_names.tpl
+++ b/charts/json-server/charts/common/templates/_names.tpl
@ -0,0 +1,66 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "common.names.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "common.names.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "common.names.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified dependency name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+Usage:
+{{ include "common.names.dependency.fullname" (dict "chartName" "dependency-chart-name" "chartValues" .Values.dependency-chart "context" $) }}
+*/}}
+{{- define "common.names.dependency.fullname" -}}
+{{- if .chartValues.fullnameOverride -}}
+{{- .chartValues.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .chartName .chartValues.nameOverride -}}
+{{- if contains $name .context.Release.Name -}}
+{{- .context.Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .context.Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Allow the release namespace to be overridden for multi-namespace deployments in combined charts.
+*/}}
+{{- define "common.names.namespace" -}}
+{{- default .Release.Namespace .Values.namespaceOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a fully qualified app name adding the installation's namespace.
+*/}}
+{{- define "common.names.fullname.namespace" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) (include "common.names.namespace" .) | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_secrets.tpl
+++ b/charts/json-server/charts/common/templates/_secrets.tpl
@ -0,0 +1,165 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Generate secret name.
+
+Usage:
+{{ include "common.secrets.name" (dict "existingSecret" .Values.path.to.the.existingSecret "defaultNameSuffix" "mySuffix" "context" $) }}
+
+Params:
+  - existingSecret - ExistingSecret/String - Optional. The path to the existing secrets in the values.yaml given by the user
+    to be used instead of the default one. Allows for it to be of type String (just the secret name) for backwards compatibility.
+    +info: https://github.com/bitnami/charts/tree/main/bitnami/common#existingsecret
+  - defaultNameSuffix - String - Optional. It is used only if we have several secrets in the same deployment.
+  - context - Dict - Required. The context for the template evaluation.
+*/}}
+{{- define "common.secrets.name" -}}
+{{- $name := (include "common.names.fullname" .context) -}}
+
+{{- if .defaultNameSuffix -}}
+{{- $name = printf "%s-%s" $name .defaultNameSuffix | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- with .existingSecret -}}
+{{- if not (typeIs "string" .) -}}
+{{- with .name -}}
+{{- $name = . -}}
+{{- end -}}
+{{- else -}}
+{{- $name = . -}}
+{{- end -}}
+{{- end -}}
+
+{{- printf "%s" $name -}}
+{{- end -}}
+
+{{/*
+Generate secret key.
+
+Usage:
+{{ include "common.secrets.key" (dict "existingSecret" .Values.path.to.the.existingSecret "key" "keyName") }}
+
+Params:
+  - existingSecret - ExistingSecret/String - Optional. The path to the existing secrets in the values.yaml given by the user
+    to be used instead of the default one. Allows for it to be of type String (just the secret name) for backwards compatibility.
+    +info: https://github.com/bitnami/charts/tree/main/bitnami/common#existingsecret
+  - key - String - Required. Name of the key in the secret.
+*/}}
+{{- define "common.secrets.key" -}}
+{{- $key := .key -}}
+
+{{- if .existingSecret -}}
+  {{- if not (typeIs "string" .existingSecret) -}}
+    {{- if .existingSecret.keyMapping -}}
+      {{- $key = index .existingSecret.keyMapping $.key -}}
+    {{- end -}}
+  {{- end }}
+{{- end -}}
+
+{{- printf "%s" $key -}}
+{{- end -}}
+
+{{/*
+Generate secret password or retrieve one if already created.
+
+Usage:
+{{ include "common.secrets.passwords.manage" (dict "secret" "secret-name" "key" "keyName" "providedValues" (list "path.to.password1" "path.to.password2") "length" 10 "strong" false "chartName" "chartName" "context" $) }}
+
+Params:
+  - secret - String - Required - Name of the 'Secret' resource where the password is stored.
+  - key - String - Required - Name of the key in the secret.
+  - providedValues - List<String> - Required - The path to the validating value in the values.yaml, e.g: "mysql.password". Will pick first parameter with a defined value.
+  - length - int - Optional - Length of the generated random password.
+  - strong - Boolean - Optional - Whether to add symbols to the generated random password.
+  - chartName - String - Optional - Name of the chart used when said chart is deployed as a subchart.
+  - context - Context - Required - Parent context.
+
+The order in which this function returns a secret password:
+  1. Already existing 'Secret' resource
+     (If a 'Secret' resource is found under the name provided to the 'secret' parameter to this function and that 'Secret' resource contains a key with the name passed as the 'key' parameter to this function then the value of this existing secret password will be returned)
+  2. Password provided via the values.yaml
+     (If one of the keys passed to the 'providedValues' parameter to this function is a valid path to a key in the values.yaml and has a value, the value of the first key with a value will be returned)
+  3. Randomly generated secret password
+     (A new random secret password with the length specified in the 'length' parameter will be generated and returned)
+
+*/}}
+{{- define "common.secrets.passwords.manage" -}}
+
+{{- $password := "" }}
+{{- $subchart := "" }}
+{{- $chartName := default "" .chartName }}
+{{- $passwordLength := default 10 .length }}
+{{- $providedPasswordKey := include "common.utils.getKeyFromList" (dict "keys" .providedValues "context" $.context) }}
+{{- $providedPasswordValue := include "common.utils.getValueFromKey" (dict "key" $providedPasswordKey "context" $.context) }}
+{{- $secretData := (lookup "v1" "Secret" (include "common.names.namespace" .context) .secret).data }}
+{{- if $secretData }}
+  {{- if hasKey $secretData .key }}
+    {{- $password = index $secretData .key | quote }}
+  {{- else }}
+    {{- printf "\nPASSWORDS ERROR: The secret \"%s\" does not contain the key \"%s\"\n" .secret .key | fail -}}
+  {{- end -}}
+{{- else if $providedPasswordValue }}
+  {{- $password = $providedPasswordValue | toString | b64enc | quote }}
+{{- else }}
+
+  {{- if .context.Values.enabled }}
+    {{- $subchart = $chartName }}
+  {{- end -}}
+
+  {{- $requiredPassword := dict "valueKey" $providedPasswordKey "secret" .secret "field" .key "subchart" $subchart "context" $.context -}}
+  {{- $requiredPasswordError := include "common.validations.values.single.empty" $requiredPassword -}}
+  {{- $passwordValidationErrors := list $requiredPasswordError -}}
+  {{- include "common.errors.upgrade.passwords.empty" (dict "validationErrors" $passwordValidationErrors "context" $.context) -}}
+
+  {{- if .strong }}
+    {{- $subStr := list (lower (randAlpha 1)) (randNumeric 1) (upper (randAlpha 1)) | join "_" }}
+    {{- $password = randAscii $passwordLength }}
+    {{- $password = regexReplaceAllLiteral "\\W" $password "@" | substr 5 $passwordLength }}
+    {{- $password = printf "%s%s" $subStr $password | toString | shuffle | b64enc | quote }}
+  {{- else }}
+    {{- $password = randAlphaNum $passwordLength | b64enc | quote }}
+  {{- end }}
+{{- end -}}
+{{- printf "%s" $password -}}
+{{- end -}}
+
+{{/*
+Reuses the value from an existing secret, otherwise sets its value to a default value.
+
+Usage:
+{{ include "common.secrets.lookup" (dict "secret" "secret-name" "key" "keyName" "defaultValue" .Values.myValue "context" $) }}
+
+Params:
+  - secret - String - Required - Name of the 'Secret' resource where the password is stored.
+  - key - String - Required - Name of the key in the secret.
+  - defaultValue - String - Required - The path to the validating value in the values.yaml, e.g: "mysql.password". Will pick first parameter with a defined value.
+  - context - Context - Required - Parent context.
+
+*/}}
+{{- define "common.secrets.lookup" -}}
+{{- $value := "" -}}
+{{- $defaultValue := required "\n'common.secrets.lookup': Argument 'defaultValue' missing or empty" .defaultValue -}}
+{{- $secretData := (lookup "v1" "Secret" (include "common.names.namespace" .context) .secret).data -}}
+{{- if and $secretData (hasKey $secretData .key) -}}
+  {{- $value = index $secretData .key -}}
+{{- else -}}
+  {{- $value = $defaultValue | toString | b64enc -}}
+{{- end -}}
+{{- printf "%s" $value -}}
+{{- end -}}
+
+{{/*
+Returns whether a previous generated secret already exists
+
+Usage:
+{{ include "common.secrets.exists" (dict "secret" "secret-name" "context" $) }}
+
+Params:
+  - secret - String - Required - Name of the 'Secret' resource where the password is stored.
+  - context - Context - Required - Parent context.
+*/}}
+{{- define "common.secrets.exists" -}}
+{{- $secret := (lookup "v1" "Secret" (include "common.names.namespace" .context) .secret) }}
+{{- if $secret }}
+  {{- true -}}
+{{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_storage.tpl
+++ b/charts/json-server/charts/common/templates/_storage.tpl
@ -0,0 +1,23 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Return  the proper Storage Class
+{{ include "common.storage.class" ( dict "persistence" .Values.path.to.the.persistence "global" $) }}
+*/}}
+{{- define "common.storage.class" -}}
+
+{{- $storageClass := .persistence.storageClass -}}
+{{- if .global -}}
+    {{- if .global.storageClass -}}
+        {{- $storageClass = .global.storageClass -}}
+    {{- end -}}
+{{- end -}}
+
+{{- if $storageClass -}}
+  {{- if (eq "-" $storageClass) -}}
+      {{- printf "storageClassName: \"\"" -}}
+  {{- else }}
+      {{- printf "storageClassName: %s" $storageClass -}}
+  {{- end -}}
+{{- end -}}
+
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_tplvalues.tpl
+++ b/charts/json-server/charts/common/templates/_tplvalues.tpl
@ -0,0 +1,13 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Renders a value that contains template.
+Usage:
+{{ include "common.tplvalues.render" ( dict "value" .Values.path.to.the.Value "context" $) }}
+*/}}
+{{- define "common.tplvalues.render" -}}
+    {{- if typeIs "string" .value }}
+        {{- tpl .value .context }}
+    {{- else }}
+        {{- tpl (.value | toYaml) .context }}
+    {{- end }}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_utils.tpl
+++ b/charts/json-server/charts/common/templates/_utils.tpl
@ -0,0 +1,62 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Print instructions to get a secret value.
+Usage:
+{{ include "common.utils.secret.getvalue" (dict "secret" "secret-name" "field" "secret-value-field" "context" $) }}
+*/}}
+{{- define "common.utils.secret.getvalue" -}}
+{{- $varname := include "common.utils.fieldToEnvVar" . -}}
+export {{ $varname }}=$(kubectl get secret --namespace {{ include "common.names.namespace" .context | quote }} {{ .secret }} -o jsonpath="{.data.{{ .field }}}" | base64 -d)
+{{- end -}}
+
+{{/*
+Build env var name given a field
+Usage:
+{{ include "common.utils.fieldToEnvVar" dict "field" "my-password" }}
+*/}}
+{{- define "common.utils.fieldToEnvVar" -}}
+  {{- $fieldNameSplit := splitList "-" .field -}}
+  {{- $upperCaseFieldNameSplit := list -}}
+
+  {{- range $fieldNameSplit -}}
+    {{- $upperCaseFieldNameSplit = append $upperCaseFieldNameSplit ( upper . ) -}}
+  {{- end -}}
+
+  {{ join "_" $upperCaseFieldNameSplit }}
+{{- end -}}
+
+{{/*
+Gets a value from .Values given
+Usage:
+{{ include "common.utils.getValueFromKey" (dict "key" "path.to.key" "context" $) }}
+*/}}
+{{- define "common.utils.getValueFromKey" -}}
+{{- $splitKey := splitList "." .key -}}
+{{- $value := "" -}}
+{{- $latestObj := $.context.Values -}}
+{{- range $splitKey -}}
+  {{- if not $latestObj -}}
+    {{- printf "please review the entire path of '%s' exists in values" $.key | fail -}}
+  {{- end -}}
+  {{- $value = ( index $latestObj . ) -}}
+  {{- $latestObj = $value -}}
+{{- end -}}
+{{- printf "%v" (default "" $value) -}} 
+{{- end -}}
+
+{{/*
+Returns first .Values key with a defined value or first of the list if all non-defined
+Usage:
+{{ include "common.utils.getKeyFromList" (dict "keys" (list "path.to.key1" "path.to.key2") "context" $) }}
+*/}}
+{{- define "common.utils.getKeyFromList" -}}
+{{- $key := first .keys -}}
+{{- $reverseKeys := reverse .keys }}
+{{- range $reverseKeys }}
+  {{- $value := include "common.utils.getValueFromKey" (dict "key" . "context" $.context ) }}
+  {{- if $value -}}
+    {{- $key = . }}
+  {{- end -}}
+{{- end -}}
+{{- printf "%s" $key -}} 
+{{- end -}}
--- a/charts/json-server/charts/common/templates/_warnings.tpl
+++ b/charts/json-server/charts/common/templates/_warnings.tpl
@ -0,0 +1,14 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Warning about using rolling tag.
+Usage:
+{{ include "common.warnings.rollingTag" .Values.path.to.the.imageRoot }}
+*/}}
+{{- define "common.warnings.rollingTag" -}}
+
+{{- if and (contains "bitnami/" .repository) (not (.tag | toString | regexFind "-r\\d+$|sha256:")) }}
+WARNING: Rolling tag detected ({{ .repository }}:{{ .tag }}), please note that it is strongly recommended to avoid using rolling tags in a production environment.
+info https://docs.bitnami.com/containers/how-to/understand-rolling-tags-containers/
+{{- end }}
+
+{{- end -}}
--- a/charts/json-server/charts/common/templates/validations/_cassandra.tpl
+++ b/charts/json-server/charts/common/templates/validations/_cassandra.tpl
@ -0,0 +1,72 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate Cassandra required passwords are not empty.
+
+Usage:
+{{ include "common.validations.values.cassandra.passwords" (dict "secret" "secretName" "subchart" false "context" $) }}
+Params:
+  - secret - String - Required. Name of the secret where Cassandra values are stored, e.g: "cassandra-passwords-secret"
+  - subchart - Boolean - Optional. Whether Cassandra is used as subchart or not. Default: false
+*/}}
+{{- define "common.validations.values.cassandra.passwords" -}}
+  {{- $existingSecret := include "common.cassandra.values.existingSecret" . -}}
+  {{- $enabled := include "common.cassandra.values.enabled" . -}}
+  {{- $dbUserPrefix := include "common.cassandra.values.key.dbUser" . -}}
+  {{- $valueKeyPassword := printf "%s.password" $dbUserPrefix -}}
+
+  {{- if and (or (not $existingSecret) (eq $existingSecret "\"\"")) (eq $enabled "true") -}}
+    {{- $requiredPasswords := list -}}
+
+    {{- $requiredPassword := dict "valueKey" $valueKeyPassword "secret" .secret "field" "cassandra-password" -}}
+    {{- $requiredPasswords = append $requiredPasswords $requiredPassword -}}
+
+    {{- include "common.validations.values.multiple.empty" (dict "required" $requiredPasswords "context" .context) -}}
+
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for existingSecret.
+
+Usage:
+{{ include "common.cassandra.values.existingSecret" (dict "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether Cassandra is used as subchart or not. Default: false
+*/}}
+{{- define "common.cassandra.values.existingSecret" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.cassandra.dbUser.existingSecret | quote -}}
+  {{- else -}}
+    {{- .context.Values.dbUser.existingSecret | quote -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled cassandra.
+
+Usage:
+{{ include "common.cassandra.values.enabled" (dict "context" $) }}
+*/}}
+{{- define "common.cassandra.values.enabled" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.cassandra.enabled -}}
+  {{- else -}}
+    {{- printf "%v" (not .context.Values.enabled) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for the key dbUser
+
+Usage:
+{{ include "common.cassandra.values.key.dbUser" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether Cassandra is used as subchart or not. Default: false
+*/}}
+{{- define "common.cassandra.values.key.dbUser" -}}
+  {{- if .subchart -}}
+    cassandra.dbUser
+  {{- else -}}
+    dbUser
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/validations/_mariadb.tpl
+++ b/charts/json-server/charts/common/templates/validations/_mariadb.tpl
@ -0,0 +1,103 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate MariaDB required passwords are not empty.
+
+Usage:
+{{ include "common.validations.values.mariadb.passwords" (dict "secret" "secretName" "subchart" false "context" $) }}
+Params:
+  - secret - String - Required. Name of the secret where MariaDB values are stored, e.g: "mysql-passwords-secret"
+  - subchart - Boolean - Optional. Whether MariaDB is used as subchart or not. Default: false
+*/}}
+{{- define "common.validations.values.mariadb.passwords" -}}
+  {{- $existingSecret := include "common.mariadb.values.auth.existingSecret" . -}}
+  {{- $enabled := include "common.mariadb.values.enabled" . -}}
+  {{- $architecture := include "common.mariadb.values.architecture" . -}}
+  {{- $authPrefix := include "common.mariadb.values.key.auth" . -}}
+  {{- $valueKeyRootPassword := printf "%s.rootPassword" $authPrefix -}}
+  {{- $valueKeyUsername := printf "%s.username" $authPrefix -}}
+  {{- $valueKeyPassword := printf "%s.password" $authPrefix -}}
+  {{- $valueKeyReplicationPassword := printf "%s.replicationPassword" $authPrefix -}}
+
+  {{- if and (or (not $existingSecret) (eq $existingSecret "\"\"")) (eq $enabled "true") -}}
+    {{- $requiredPasswords := list -}}
+
+    {{- $requiredRootPassword := dict "valueKey" $valueKeyRootPassword "secret" .secret "field" "mariadb-root-password" -}}
+    {{- $requiredPasswords = append $requiredPasswords $requiredRootPassword -}}
+
+    {{- $valueUsername := include "common.utils.getValueFromKey" (dict "key" $valueKeyUsername "context" .context) }}
+    {{- if not (empty $valueUsername) -}}
+        {{- $requiredPassword := dict "valueKey" $valueKeyPassword "secret" .secret "field" "mariadb-password" -}}
+        {{- $requiredPasswords = append $requiredPasswords $requiredPassword -}}
+    {{- end -}}
+
+    {{- if (eq $architecture "replication") -}}
+        {{- $requiredReplicationPassword := dict "valueKey" $valueKeyReplicationPassword "secret" .secret "field" "mariadb-replication-password" -}}
+        {{- $requiredPasswords = append $requiredPasswords $requiredReplicationPassword -}}
+    {{- end -}}
+
+    {{- include "common.validations.values.multiple.empty" (dict "required" $requiredPasswords "context" .context) -}}
+
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for existingSecret.
+
+Usage:
+{{ include "common.mariadb.values.auth.existingSecret" (dict "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MariaDB is used as subchart or not. Default: false
+*/}}
+{{- define "common.mariadb.values.auth.existingSecret" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.mariadb.auth.existingSecret | quote -}}
+  {{- else -}}
+    {{- .context.Values.auth.existingSecret | quote -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled mariadb.
+
+Usage:
+{{ include "common.mariadb.values.enabled" (dict "context" $) }}
+*/}}
+{{- define "common.mariadb.values.enabled" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.mariadb.enabled -}}
+  {{- else -}}
+    {{- printf "%v" (not .context.Values.enabled) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for architecture
+
+Usage:
+{{ include "common.mariadb.values.architecture" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MariaDB is used as subchart or not. Default: false
+*/}}
+{{- define "common.mariadb.values.architecture" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.mariadb.architecture -}}
+  {{- else -}}
+    {{- .context.Values.architecture -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for the key auth
+
+Usage:
+{{ include "common.mariadb.values.key.auth" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MariaDB is used as subchart or not. Default: false
+*/}}
+{{- define "common.mariadb.values.key.auth" -}}
+  {{- if .subchart -}}
+    mariadb.auth
+  {{- else -}}
+    auth
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/validations/_mongodb.tpl
+++ b/charts/json-server/charts/common/templates/validations/_mongodb.tpl
@ -0,0 +1,108 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate MongoDB&reg; required passwords are not empty.
+
+Usage:
+{{ include "common.validations.values.mongodb.passwords" (dict "secret" "secretName" "subchart" false "context" $) }}
+Params:
+  - secret - String - Required. Name of the secret where MongoDB&reg; values are stored, e.g: "mongodb-passwords-secret"
+  - subchart - Boolean - Optional. Whether MongoDB&reg; is used as subchart or not. Default: false
+*/}}
+{{- define "common.validations.values.mongodb.passwords" -}}
+  {{- $existingSecret := include "common.mongodb.values.auth.existingSecret" . -}}
+  {{- $enabled := include "common.mongodb.values.enabled" . -}}
+  {{- $authPrefix := include "common.mongodb.values.key.auth" . -}}
+  {{- $architecture := include "common.mongodb.values.architecture" . -}}
+  {{- $valueKeyRootPassword := printf "%s.rootPassword" $authPrefix -}}
+  {{- $valueKeyUsername := printf "%s.username" $authPrefix -}}
+  {{- $valueKeyDatabase := printf "%s.database" $authPrefix -}}
+  {{- $valueKeyPassword := printf "%s.password" $authPrefix -}}
+  {{- $valueKeyReplicaSetKey := printf "%s.replicaSetKey" $authPrefix -}}
+  {{- $valueKeyAuthEnabled := printf "%s.enabled" $authPrefix -}}
+
+  {{- $authEnabled := include "common.utils.getValueFromKey" (dict "key" $valueKeyAuthEnabled "context" .context) -}}
+
+  {{- if and (or (not $existingSecret) (eq $existingSecret "\"\"")) (eq $enabled "true") (eq $authEnabled "true") -}}
+    {{- $requiredPasswords := list -}}
+
+    {{- $requiredRootPassword := dict "valueKey" $valueKeyRootPassword "secret" .secret "field" "mongodb-root-password" -}}
+    {{- $requiredPasswords = append $requiredPasswords $requiredRootPassword -}}
+
+    {{- $valueUsername := include "common.utils.getValueFromKey" (dict "key" $valueKeyUsername "context" .context) }}
+    {{- $valueDatabase := include "common.utils.getValueFromKey" (dict "key" $valueKeyDatabase "context" .context) }}
+    {{- if and $valueUsername $valueDatabase -}}
+        {{- $requiredPassword := dict "valueKey" $valueKeyPassword "secret" .secret "field" "mongodb-password" -}}
+        {{- $requiredPasswords = append $requiredPasswords $requiredPassword -}}
+    {{- end -}}
+
+    {{- if (eq $architecture "replicaset") -}}
+        {{- $requiredReplicaSetKey := dict "valueKey" $valueKeyReplicaSetKey "secret" .secret "field" "mongodb-replica-set-key" -}}
+        {{- $requiredPasswords = append $requiredPasswords $requiredReplicaSetKey -}}
+    {{- end -}}
+
+    {{- include "common.validations.values.multiple.empty" (dict "required" $requiredPasswords "context" .context) -}}
+
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for existingSecret.
+
+Usage:
+{{ include "common.mongodb.values.auth.existingSecret" (dict "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MongoDb is used as subchart or not. Default: false
+*/}}
+{{- define "common.mongodb.values.auth.existingSecret" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.mongodb.auth.existingSecret | quote -}}
+  {{- else -}}
+    {{- .context.Values.auth.existingSecret | quote -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled mongodb.
+
+Usage:
+{{ include "common.mongodb.values.enabled" (dict "context" $) }}
+*/}}
+{{- define "common.mongodb.values.enabled" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.mongodb.enabled -}}
+  {{- else -}}
+    {{- printf "%v" (not .context.Values.enabled) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for the key auth
+
+Usage:
+{{ include "common.mongodb.values.key.auth" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MongoDB&reg; is used as subchart or not. Default: false
+*/}}
+{{- define "common.mongodb.values.key.auth" -}}
+  {{- if .subchart -}}
+    mongodb.auth
+  {{- else -}}
+    auth
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for architecture
+
+Usage:
+{{ include "common.mongodb.values.architecture" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MongoDB&reg; is used as subchart or not. Default: false
+*/}}
+{{- define "common.mongodb.values.architecture" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.mongodb.architecture -}}
+  {{- else -}}
+    {{- .context.Values.architecture -}}
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/validations/_mysql.tpl
+++ b/charts/json-server/charts/common/templates/validations/_mysql.tpl
@ -0,0 +1,103 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate MySQL required passwords are not empty.
+
+Usage:
+{{ include "common.validations.values.mysql.passwords" (dict "secret" "secretName" "subchart" false "context" $) }}
+Params:
+  - secret - String - Required. Name of the secret where MySQL values are stored, e.g: "mysql-passwords-secret"
+  - subchart - Boolean - Optional. Whether MySQL is used as subchart or not. Default: false
+*/}}
+{{- define "common.validations.values.mysql.passwords" -}}
+  {{- $existingSecret := include "common.mysql.values.auth.existingSecret" . -}}
+  {{- $enabled := include "common.mysql.values.enabled" . -}}
+  {{- $architecture := include "common.mysql.values.architecture" . -}}
+  {{- $authPrefix := include "common.mysql.values.key.auth" . -}}
+  {{- $valueKeyRootPassword := printf "%s.rootPassword" $authPrefix -}}
+  {{- $valueKeyUsername := printf "%s.username" $authPrefix -}}
+  {{- $valueKeyPassword := printf "%s.password" $authPrefix -}}
+  {{- $valueKeyReplicationPassword := printf "%s.replicationPassword" $authPrefix -}}
+
+  {{- if and (or (not $existingSecret) (eq $existingSecret "\"\"")) (eq $enabled "true") -}}
+    {{- $requiredPasswords := list -}}
+
+    {{- $requiredRootPassword := dict "valueKey" $valueKeyRootPassword "secret" .secret "field" "mysql-root-password" -}}
+    {{- $requiredPasswords = append $requiredPasswords $requiredRootPassword -}}
+
+    {{- $valueUsername := include "common.utils.getValueFromKey" (dict "key" $valueKeyUsername "context" .context) }}
+    {{- if not (empty $valueUsername) -}}
+        {{- $requiredPassword := dict "valueKey" $valueKeyPassword "secret" .secret "field" "mysql-password" -}}
+        {{- $requiredPasswords = append $requiredPasswords $requiredPassword -}}
+    {{- end -}}
+
+    {{- if (eq $architecture "replication") -}}
+        {{- $requiredReplicationPassword := dict "valueKey" $valueKeyReplicationPassword "secret" .secret "field" "mysql-replication-password" -}}
+        {{- $requiredPasswords = append $requiredPasswords $requiredReplicationPassword -}}
+    {{- end -}}
+
+    {{- include "common.validations.values.multiple.empty" (dict "required" $requiredPasswords "context" .context) -}}
+
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for existingSecret.
+
+Usage:
+{{ include "common.mysql.values.auth.existingSecret" (dict "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MySQL is used as subchart or not. Default: false
+*/}}
+{{- define "common.mysql.values.auth.existingSecret" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.mysql.auth.existingSecret | quote -}}
+  {{- else -}}
+    {{- .context.Values.auth.existingSecret | quote -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled mysql.
+
+Usage:
+{{ include "common.mysql.values.enabled" (dict "context" $) }}
+*/}}
+{{- define "common.mysql.values.enabled" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.mysql.enabled -}}
+  {{- else -}}
+    {{- printf "%v" (not .context.Values.enabled) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for architecture
+
+Usage:
+{{ include "common.mysql.values.architecture" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MySQL is used as subchart or not. Default: false
+*/}}
+{{- define "common.mysql.values.architecture" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.mysql.architecture -}}
+  {{- else -}}
+    {{- .context.Values.architecture -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for the key auth
+
+Usage:
+{{ include "common.mysql.values.key.auth" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether MySQL is used as subchart or not. Default: false
+*/}}
+{{- define "common.mysql.values.key.auth" -}}
+  {{- if .subchart -}}
+    mysql.auth
+  {{- else -}}
+    auth
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/validations/_postgresql.tpl
+++ b/charts/json-server/charts/common/templates/validations/_postgresql.tpl
@ -0,0 +1,129 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate PostgreSQL required passwords are not empty.
+
+Usage:
+{{ include "common.validations.values.postgresql.passwords" (dict "secret" "secretName" "subchart" false "context" $) }}
+Params:
+  - secret - String - Required. Name of the secret where postgresql values are stored, e.g: "postgresql-passwords-secret"
+  - subchart - Boolean - Optional. Whether postgresql is used as subchart or not. Default: false
+*/}}
+{{- define "common.validations.values.postgresql.passwords" -}}
+  {{- $existingSecret := include "common.postgresql.values.existingSecret" . -}}
+  {{- $enabled := include "common.postgresql.values.enabled" . -}}
+  {{- $valueKeyPostgresqlPassword := include "common.postgresql.values.key.postgressPassword" . -}}
+  {{- $valueKeyPostgresqlReplicationEnabled := include "common.postgresql.values.key.replicationPassword" . -}}
+  {{- if and (or (not $existingSecret) (eq $existingSecret "\"\"")) (eq $enabled "true") -}}
+    {{- $requiredPasswords := list -}}
+    {{- $requiredPostgresqlPassword := dict "valueKey" $valueKeyPostgresqlPassword "secret" .secret "field" "postgresql-password" -}}
+    {{- $requiredPasswords = append $requiredPasswords $requiredPostgresqlPassword -}}
+
+    {{- $enabledReplication := include "common.postgresql.values.enabled.replication" . -}}
+    {{- if (eq $enabledReplication "true") -}}
+        {{- $requiredPostgresqlReplicationPassword := dict "valueKey" $valueKeyPostgresqlReplicationEnabled "secret" .secret "field" "postgresql-replication-password" -}}
+        {{- $requiredPasswords = append $requiredPasswords $requiredPostgresqlReplicationPassword -}}
+    {{- end -}}
+
+    {{- include "common.validations.values.multiple.empty" (dict "required" $requiredPasswords "context" .context) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to decide whether evaluate global values.
+
+Usage:
+{{ include "common.postgresql.values.use.global" (dict "key" "key-of-global" "context" $) }}
+Params:
+  - key - String - Required. Field to be evaluated within global, e.g: "existingSecret"
+*/}}
+{{- define "common.postgresql.values.use.global" -}}
+  {{- if .context.Values.global -}}
+    {{- if .context.Values.global.postgresql -}}
+      {{- index .context.Values.global.postgresql .key | quote -}}
+    {{- end -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for existingSecret.
+
+Usage:
+{{ include "common.postgresql.values.existingSecret" (dict "context" $) }}
+*/}}
+{{- define "common.postgresql.values.existingSecret" -}}
+  {{- $globalValue := include "common.postgresql.values.use.global" (dict "key" "existingSecret" "context" .context) -}}
+
+  {{- if .subchart -}}
+    {{- default (.context.Values.postgresql.existingSecret | quote) $globalValue -}}
+  {{- else -}}
+    {{- default (.context.Values.existingSecret | quote) $globalValue -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled postgresql.
+
+Usage:
+{{ include "common.postgresql.values.enabled" (dict "context" $) }}
+*/}}
+{{- define "common.postgresql.values.enabled" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.postgresql.enabled -}}
+  {{- else -}}
+    {{- printf "%v" (not .context.Values.enabled) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for the key postgressPassword.
+
+Usage:
+{{ include "common.postgresql.values.key.postgressPassword" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether postgresql is used as subchart or not. Default: false
+*/}}
+{{- define "common.postgresql.values.key.postgressPassword" -}}
+  {{- $globalValue := include "common.postgresql.values.use.global" (dict "key" "postgresqlUsername" "context" .context) -}}
+
+  {{- if not $globalValue -}}
+    {{- if .subchart -}}
+      postgresql.postgresqlPassword
+    {{- else -}}
+      postgresqlPassword
+    {{- end -}}
+  {{- else -}}
+    global.postgresql.postgresqlPassword
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled.replication.
+
+Usage:
+{{ include "common.postgresql.values.enabled.replication" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether postgresql is used as subchart or not. Default: false
+*/}}
+{{- define "common.postgresql.values.enabled.replication" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.postgresql.replication.enabled -}}
+  {{- else -}}
+    {{- printf "%v" .context.Values.replication.enabled -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for the key replication.password.
+
+Usage:
+{{ include "common.postgresql.values.key.replicationPassword" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether postgresql is used as subchart or not. Default: false
+*/}}
+{{- define "common.postgresql.values.key.replicationPassword" -}}
+  {{- if .subchart -}}
+    postgresql.replication.password
+  {{- else -}}
+    replication.password
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/validations/_redis.tpl
+++ b/charts/json-server/charts/common/templates/validations/_redis.tpl
@ -0,0 +1,76 @@
+
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate Redis&reg; required passwords are not empty.
+
+Usage:
+{{ include "common.validations.values.redis.passwords" (dict "secret" "secretName" "subchart" false "context" $) }}
+Params:
+  - secret - String - Required. Name of the secret where redis values are stored, e.g: "redis-passwords-secret"
+  - subchart - Boolean - Optional. Whether redis is used as subchart or not. Default: false
+*/}}
+{{- define "common.validations.values.redis.passwords" -}}
+  {{- $enabled := include "common.redis.values.enabled" . -}}
+  {{- $valueKeyPrefix := include "common.redis.values.keys.prefix" . -}}
+  {{- $standarizedVersion := include "common.redis.values.standarized.version" . }}
+
+  {{- $existingSecret := ternary (printf "%s%s" $valueKeyPrefix "auth.existingSecret") (printf "%s%s" $valueKeyPrefix "existingSecret") (eq $standarizedVersion "true") }}
+  {{- $existingSecretValue := include "common.utils.getValueFromKey" (dict "key" $existingSecret "context" .context) }}
+
+  {{- $valueKeyRedisPassword := ternary (printf "%s%s" $valueKeyPrefix "auth.password") (printf "%s%s" $valueKeyPrefix "password") (eq $standarizedVersion "true") }}
+  {{- $valueKeyRedisUseAuth := ternary (printf "%s%s" $valueKeyPrefix "auth.enabled") (printf "%s%s" $valueKeyPrefix "usePassword") (eq $standarizedVersion "true") }}
+
+  {{- if and (or (not $existingSecret) (eq $existingSecret "\"\"")) (eq $enabled "true") -}}
+    {{- $requiredPasswords := list -}}
+
+    {{- $useAuth := include "common.utils.getValueFromKey" (dict "key" $valueKeyRedisUseAuth "context" .context) -}}
+    {{- if eq $useAuth "true" -}}
+      {{- $requiredRedisPassword := dict "valueKey" $valueKeyRedisPassword "secret" .secret "field" "redis-password" -}}
+      {{- $requiredPasswords = append $requiredPasswords $requiredRedisPassword -}}
+    {{- end -}}
+
+    {{- include "common.validations.values.multiple.empty" (dict "required" $requiredPasswords "context" .context) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled redis.
+
+Usage:
+{{ include "common.redis.values.enabled" (dict "context" $) }}
+*/}}
+{{- define "common.redis.values.enabled" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.redis.enabled -}}
+  {{- else -}}
+    {{- printf "%v" (not .context.Values.enabled) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right prefix path for the values
+
+Usage:
+{{ include "common.redis.values.key.prefix" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether redis is used as subchart or not. Default: false
+*/}}
+{{- define "common.redis.values.keys.prefix" -}}
+  {{- if .subchart -}}redis.{{- else -}}{{- end -}}
+{{- end -}}
+
+{{/*
+Checks whether the redis chart's includes the standarizations (version >= 14)
+
+Usage:
+{{ include "common.redis.values.standarized.version" (dict "context" $) }}
+*/}}
+{{- define "common.redis.values.standarized.version" -}}
+
+  {{- $standarizedAuth := printf "%s%s" (include "common.redis.values.keys.prefix" .) "auth" -}}
+  {{- $standarizedAuthValues := include "common.utils.getValueFromKey" (dict "key" $standarizedAuth "context" .context) }}
+
+  {{- if $standarizedAuthValues -}}
+    {{- true -}}
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/templates/validations/_validations.tpl
+++ b/charts/json-server/charts/common/templates/validations/_validations.tpl
@ -0,0 +1,46 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate values must not be empty.
+
+Usage:
+{{- $validateValueConf00 := (dict "valueKey" "path.to.value" "secret" "secretName" "field" "password-00") -}}
+{{- $validateValueConf01 := (dict "valueKey" "path.to.value" "secret" "secretName" "field" "password-01") -}}
+{{ include "common.validations.values.empty" (dict "required" (list $validateValueConf00 $validateValueConf01) "context" $) }}
+
+Validate value params:
+  - valueKey - String - Required. The path to the validating value in the values.yaml, e.g: "mysql.password"
+  - secret - String - Optional. Name of the secret where the validating value is generated/stored, e.g: "mysql-passwords-secret"
+  - field - String - Optional. Name of the field in the secret data, e.g: "mysql-password"
+*/}}
+{{- define "common.validations.values.multiple.empty" -}}
+  {{- range .required -}}
+    {{- include "common.validations.values.single.empty" (dict "valueKey" .valueKey "secret" .secret "field" .field "context" $.context) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Validate a value must not be empty.
+
+Usage:
+{{ include "common.validations.value.empty" (dict "valueKey" "mariadb.password" "secret" "secretName" "field" "my-password" "subchart" "subchart" "context" $) }}
+
+Validate value params:
+  - valueKey - String - Required. The path to the validating value in the values.yaml, e.g: "mysql.password"
+  - secret - String - Optional. Name of the secret where the validating value is generated/stored, e.g: "mysql-passwords-secret"
+  - field - String - Optional. Name of the field in the secret data, e.g: "mysql-password"
+  - subchart - String - Optional - Name of the subchart that the validated password is part of.
+*/}}
+{{- define "common.validations.values.single.empty" -}}
+  {{- $value := include "common.utils.getValueFromKey" (dict "key" .valueKey "context" .context) }}
+  {{- $subchart := ternary "" (printf "%s." .subchart) (empty .subchart) }}
+
+  {{- if not $value -}}
+    {{- $varname := "my-value" -}}
+    {{- $getCurrentValue := "" -}}
+    {{- if and .secret .field -}}
+      {{- $varname = include "common.utils.fieldToEnvVar" . -}}
+      {{- $getCurrentValue = printf " To get the current value:\n\n        %s\n" (include "common.utils.secret.getvalue" .) -}}
+    {{- end -}}
+    {{- printf "\n    '%s' must not be empty, please add '--set %s%s=$%s' to the command.%s" .valueKey $subchart .valueKey $varname $getCurrentValue -}}
+  {{- end -}}
+{{- end -}}
--- a/charts/json-server/charts/common/values.yaml
+++ b/charts/json-server/charts/common/values.yaml
@ -0,0 +1,5 @@
+## bitnami/common
+## It is required by CI/CD tools and processes.
+## @skip exampleValue
+##
+exampleValue: common-chart