TODO: Files with sensitive data; move to Vault

# line 6-8: services/Guacamole/configMap_Guacamole.yml

Kubernetes.K3s.installLog

3 VM's provisioned with Ubuntu Server 18.04

K3s cluster

On first node:

curl -sfL https://get.k3s.io | sh -s - --no-deploy traefik
cat /var/lib/rancher/k3s/server/token
kubectl config view --raw

On subsequent nodes:

curl -sfL https://get.k3s.io | K3S_URL=https://<fqdn or ip>:6443 K3S_TOKEN=<value from master> sh -

Install Rancher's System Upgrade Controller:

kubectl apply -f https://github.com/rancher/system-upgrade-controller/releases/download/v0.4.0/system-upgrade-controller.yaml

Apply a server (master node) and agent (worker node) plan:

kubectl apply -f system/UpgradeController/plan-Server.yml -f system/UpgradeController/plan-Agent.yml

1) Persistent storage

1.1) SMB (CIFS) CSI-driver:

See https://github.com/kubernetes-csi/csi-driver-smb:

curl -skSL https://raw.githubusercontent.com/kubernetes-csi/csi-driver-smb/master/deploy/install-driver.sh | bash -s master --

1.2) SMB (CIFS) FlexVolume:

curl -Ls https://github.com/juliohm1978/kubernetes-cifs-volumedriver/blob/master/install.yaml -o storage/flexVolSMB/daemonSet-flexVolSMB.yml

Override drivername to something more sensible (see storage/flexVolSMB/daemonSet-flexVolSMB.yml)

spec:
  template:
    spec:
      containers:
        - image: juliohm/kubernetes-cifs-volumedriver-installer:2.0
          ...
          env:
            - name: VENDOR
              value: mount
            - name: DRIVER
              value: smb
          ...

Perform installation:

kubectl apply -f storage/flexVolSMB/daemonSet-flexVolSMB.yml

Wait for installation to complete (check logs of all installer-pods), then delete daemonSet:

kubectl delete -f storage/flexVolSMB/daemonSet-flexVolSMB.yml

Store credentials in secret:

kubectl create secret generic --type=mount/smb smb-secret --from-literal=username=<<omitted>> --from-literal=password=<<omitted>>

---

Optional
Install Longhorn for block storage with NFS-backed backup schedules.

2) Ingress Controller

2.1) Create configMap, secret and persistentVolumeClaim

The configMap contains Traefik's static and dynamic config:

kubectl apply -f ingress/Traefik2.x/configMap_traefik.yml

The secret contains credentials for Cloudflare's API:

kubectl create secret generic traefik-cloudflare --from-literal=CF_API_EMAIL=<<omitted>> --from-literal=CF_API_KEY=<<omitted>> --namespace kube-system

The persistentVolumeClaim will contain /data/acme.json (referenced as existingClaim):

kubectl apply -f ingress/Traefik2.x/pvc_traefik.yml

2.2) Install Helm Chart

See Traefik 2.x Helm Chart:

helm repo add traefik https://containous.github.io/traefik-helm-chart
helm repo update
helm install traefik traefik/traefik --namespace kube-system --values=ingress/Traefik2.x/chart-values.yml

2.3) Replace IngressRoute for Traefik's dashboard:

kubectl apply -f ingress/Traefik2.x/ingressRoute-Traefik.yaml
kubectl delete ingressroute traefik-dashboard --namespace kube-system

3) Secret management

Perform these steps after configuring persistent storage and ingress

3.1) Create persistentVolume and ingressRoute

Requires specifying a uid & gid in the flexvolSMB-persistentVolume

kubectl apply -f services/Vault/persistentVolume-Vault.yml
kubectl apply -f services/Vault/ingressRoute-Vault.yml

3.2) Install Helm Chart

See HashiCorp Vault:

kubectl create namespace vault
helm repo add hashicorp https://helm.releases.hashicorp.com
helm repo update
helm install vault hashicorp/vault --namespace vault --values=services/Vault/chart-values.yml

Configure Vault for use;

• Enable Kubernetes authentication (see https://www.vaultproject.io/api-docs/auth/kubernetes)
• Store basic access policy template
• Enable kv-engine

# kubectl exec -n vault -it vault-0 -- sh

vault auth enable kubernetes
vault write auth/kubernetes/config \
   token_reviewer_jwt="$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" \
   kubernetes_host=https://${KUBERNETES_PORT_443_TCP_ADDR}:443 \
   kubernetes_ca_cert=@/var/run/secrets/kubernetes.io/serviceaccount/ca.crt

cat <<EOF > /home/vault/app-policy.hcl
path "secret*" {
  capabilities = ["read"]
}
EOF

vault secrets enable -path=secret -version=2 kv

4) Services

4.1) Adminer (SQL management)

kubectl apply -f services/Adminer/configMap_Adminer.yml
kubectl apply -f services/Adminer/deploy_Adminer.yml

Vault configuration:

vault kv put secret/adminer \
  sqlitepw=<value>
vault write auth/kubernetes/role/adminer \
  bound_service_account_names=adminer \
  bound_service_account_namespaces=default \
  policies=adminer \
  ttl=1h
vault policy write adminer /home/vault/app-policy.hcl

4.2) Bitwarden_rs (password manager)

Requires mount.cifs' option nobrl

kubectl apply -f services/Bitwarden/deployment_Bitwarden.yml

Vault configuration:

vault kv put secret/bitwarden \
  admintoken=<value> \
  yubicoclientid=<value> \
  yubicosecretkey=<value>
vault write auth/kubernetes/role/bitwarden \
  bound_service_account_names=bitwarden \
  bound_service_account_namespaces=default \
  policies=bitwarden \
  ttl=1h
vault policy write bitwarden /home/vault/app-policy.hcl

4.3) DroneCI (contineous delivery)

kubectl apply -f services/DroneCI/deployment_DroneCI.yml

Vault configuration:

vault kv put secret/drone \
  rpcsecret=<value> \
  giteaclientid=<value> \
  giteaclientsecret=<value>
vault write auth/kubernetes/role/drone \
  bound_service_account_names=drone \
  bound_service_account_namespaces=default \
  policies=drone \
  ttl=1h
vault policy write drone /home/vault/app-policy.hcl

4.4) Gitea (git repository)

kubectl apply -f services/Gitea/deployment_Gitea.yml

4.5) Gotify (notifications)

kubectl apply -f services/Gotify/deploy_Gotify.yml

4.6) Guacamole (remote desktop gateway)

Requires specifying a uid & gid in both the securityContext of the MySQL container and the persistentVolume

kubectl apply -f services/Guacamole/configMap_Guacamole.yml
kubectl apply -f services/Guacamole/deployment_Guacamole.yml

Wait for the included containers to start, then perform the following commands to initialize the database:

kubectl exec -i guacamole-<pod-id> --container guacamole -- /opt/guacamole/bin/initdb.sh --mysql > initdb.sql
kubectl exec -i guacamole-<pod-id> --container mysql -- mysql -uguacamole -pguacamole guacamole < initdb.sql
kubectl rollout restart deployment guacamole

4.7) Harbor (container image registry)

Create ingressRoute and storageClass

kubectl apply -f services/Harbor/ingressRoute-Harbor.yml
kubectl apply -f services/Harbor/storageClass-Harbor.yml

Install Helm chart

kubectl create namespace harbor
helm repo add harbor https://helm.goharbor.io
helm repo update
helm install harbor harbor/harbor --namespace harbor --values=services/Harbor/chart-values.yml

4.8) Lighttpd (webserver)

Serves various semi-containerized websites; respective webcontent is stored on fileshare

kubectl apply -f services/Lighttpd/configMap_lighttpd.yml
kubectl apply -f services/Lighttpd/deploy_Lighttpd.yml
kubectl apply -f services/Lighttpd/cronJob-Spotweb.yml

4.9) Shaarli (bookmarks/notes)

kubectl apply -f services/Shaarli/deploy_Shaarli.yml

4.10) Theia (web IDE)

kubectl apply -f services/Theia/deploy_Theia.yml

4.11) Traefik-Certs-Dumper (certificate tooling)

kubectl apply -f services/TraefikCertsDumper/deploy-TraefikCertsDumper.yml

4.12) External Endpoints

4.12.1) NZBHydra, Plex, Radarr, SABnzbd & Sonarr (automated media management)

Running externally, due to connectivity requirements

kubectl apply -f services/PVR/deploy-PVR.yml

5) Miscellaneous

Various notes/useful links

• Replacement for not-yet-deprecated kubectl get all -A:

  kubectl get $(kubectl api-resources --verbs=list -o name | paste -sd, -) --ignore-not-found --all-namespaces
  

• ...