#! Copyright 2020-2021 the Pinniped contributors. All Rights Reserved.
#! SPDX-License-Identifier: Apache-2.0

#@ load("@ytt:data", "data")
#@ load("@ytt:json", "json")
#@ load("helpers.lib.yaml", "defaultLabel", "labels", "namespace", "defaultResourceName", "defaultResourceNameWithSuffix", "getAndValidateLogLevel")

#@ if not data.values.into_namespace:
---
apiVersion: v1
kind: Namespace
metadata:
  name: #@ data.values.namespace
  labels: #@ labels()
#@ end
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: #@ defaultResourceName()
  namespace: #@ namespace()
  labels: #@ labels()
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: #@ defaultResourceNameWithSuffix("config")
  namespace: #@ namespace()
  labels: #@ labels()
data:
  #! If names.apiService is changed in this ConfigMap, must also change name of the ClusterIP Service resource below.
  #@yaml/text-templated-strings
  pinniped.yaml: |
    discovery:
      url: (@= data.values.discovery_url or "null" @)
    api:
      servingCertificate:
        durationSeconds: (@= str(data.values.api_serving_certificate_duration_seconds) @)
        renewBeforeSeconds: (@= str(data.values.api_serving_certificate_renew_before_seconds) @)
    names:
      servingCertificateSecret: (@= defaultResourceNameWithSuffix("api-tls-serving-certificate") @)
      credentialIssuer: (@= defaultResourceNameWithSuffix("config") @)
      apiService: (@= defaultResourceNameWithSuffix("api") @)
    labels: (@= json.encode(labels()).rstrip() @)
    kubeCertAgent:
      namePrefix: (@= defaultResourceNameWithSuffix("kube-cert-agent-") @)
      (@ if data.values.kube_cert_agent_image: @)
      image: (@= data.values.kube_cert_agent_image @)
      (@ else: @)
      (@ if data.values.image_digest: @)
      image: (@= data.values.image_repo + "@" + data.values.image_digest @)
      (@ else: @)
      image: (@= data.values.image_repo + ":" + data.values.image_tag @)
      (@ end @)
      (@ end @)
      (@ if data.values.image_pull_dockerconfigjson: @)
      imagePullSecrets:
        - image-pull-secret
      (@ end @)
    (@ if data.values.log_level: @)
    logLevel: (@= getAndValidateLogLevel() @)
    (@ end @)
---
#@ if data.values.image_pull_dockerconfigjson and data.values.image_pull_dockerconfigjson != "":
apiVersion: v1
kind: Secret
metadata:
  name: image-pull-secret
  namespace: #@ namespace()
  labels: #@ labels()
type: kubernetes.io/dockerconfigjson
data:
  .dockerconfigjson: #@ data.values.image_pull_dockerconfigjson
#@ end
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: #@ defaultResourceName()
  namespace: #@ namespace()
  labels: #@ labels()
spec:
  replicas: #@ data.values.replicas
  selector:
    matchLabels: #@ defaultLabel()
  template:
    metadata:
      labels: #@ defaultLabel()
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ""
    spec:
      securityContext:
        runAsUser: 1001
        runAsGroup: 1001
      serviceAccountName: #@ defaultResourceName()
      #@ if data.values.image_pull_dockerconfigjson and data.values.image_pull_dockerconfigjson != "":
      imagePullSecrets:
        - name: image-pull-secret
      #@ end
      containers:
        - name: #@ defaultResourceName()
          #@ if data.values.image_digest:
          image:  #@ data.values.image_repo + "@" + data.values.image_digest
          #@ else:
          image: #@ data.values.image_repo + ":" + data.values.image_tag
          #@ end
          imagePullPolicy: IfNotPresent
          resources:
            requests:
              cpu: "100m"
              memory: "128Mi"
            limits:
              cpu: "100m"
              memory: "128Mi"
          args:
            - --config=/etc/config/pinniped.yaml
            - --downward-api-path=/etc/podinfo
          volumeMounts:
            - name: config-volume
              mountPath: /etc/config
            - name: podinfo
              mountPath: /etc/podinfo
          livenessProbe:
            httpGet:
              path: /healthz
              port: 8443
              scheme: HTTPS
            initialDelaySeconds: 2
            timeoutSeconds: 15
            periodSeconds: 10
            failureThreshold: 5
          readinessProbe:
            httpGet:
              path: /healthz
              port: 8443
              scheme: HTTPS
            initialDelaySeconds: 2
            timeoutSeconds: 3
            periodSeconds: 10
            failureThreshold: 3
      volumes:
        - name: config-volume
          configMap:
            name: #@ defaultResourceNameWithSuffix("config")
        - name: podinfo
          downwardAPI:
            items:
              - path: "labels"
                fieldRef:
                  fieldPath: metadata.labels
              - path: "name"
                fieldRef:
                  fieldPath: metadata.name
              - path: "namespace"
                fieldRef:
                  fieldPath: metadata.namespace
      tolerations:
        - key: CriticalAddonsOnly
          operator: Exists
        - key: node-role.kubernetes.io/master #! Allow running on master nodes too
          effect: NoSchedule
      #! "system-cluster-critical" cannot be used outside the kube-system namespace until Kubernetes >= 1.17,
      #! so we skip setting this for now (see https://github.com/kubernetes/kubernetes/issues/60596).
      #!priorityClassName: system-cluster-critical
      #! This will help make sure our multiple pods run on different nodes, making
      #! our deployment "more" "HA".
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 50
              podAffinityTerm:
                labelSelector:
                  matchLabels: #@ defaultLabel()
                topologyKey: kubernetes.io/hostname
---
apiVersion: v1
kind: Service
metadata:
  #! If name is changed, must also change names.apiService in the ConfigMap above and spec.service.name in the APIService below.
  name: #@ defaultResourceNameWithSuffix("api")
  namespace: #@ namespace()
  labels: #@ labels()
spec:
  type: ClusterIP
  selector: #@ defaultLabel()
  ports:
    - protocol: TCP
      port: 443
      targetPort: 8443
---
apiVersion: apiregistration.k8s.io/v1
kind: APIService
metadata:
  name: v1alpha1.login.concierge.pinniped.dev
  labels: #@ labels()
spec:
  version: v1alpha1
  group: login.concierge.pinniped.dev
  groupPriorityMinimum: 2500
  versionPriority: 10
  #! caBundle: Do not include this key here. Starts out null, will be updated/owned by the golang code.
  service:
    name: #@ defaultResourceNameWithSuffix("api")
    namespace: #@ namespace()
    port: 443