add single service kluctl example

12-deploying-to-multiple-environments/helm/Taskfile.yaml

@@ -3,17 +3,17 @@ version: "3"
 tasks:
   template-default:
     cmds:
-      - helm template ./api-golang-helm-chart
+      - helm template ./api-golang-helm-chart | yq
     desc: "Render chart yaml with default values"
 
   template-staging:
     cmds:
-      - helm template ./api-golang-helm-chart --values=./api-golang-helm-chart/values.staging.yaml
+      - helm template ./api-golang-helm-chart --values=./api-golang-helm-chart/values.staging.yaml  | yq
     desc: "Render chart yaml with staging values file"
 
   template-production:
     cmds:
-      - helm template ./api-golang-helm-chart --values=./api-golang-helm-chart/values.production.yaml
+      - helm template ./api-golang-helm-chart --values=./api-golang-helm-chart/values.production.yaml  | yq
     desc: "Render chart yaml with production values file"
 
   package:
@@ -24,8 +24,10 @@ tasks:
   push:
     cmds:
       - helm push api-golang-helm-chart-0.1.0.tgz oci://registry-1.docker.io/sidpalas
+    desc: "Push the helm chart to an oci registry"
 
   build-push:
     cmds:
       - task: build
       - task: push
+    desc: "Build & Push the helm chart to an oci registry"

12-deploying-to-multiple-environments/kluctl-single-service/.kluctl.yaml

@@ -0,0 +1,17 @@
+targets:
+  - name: staging
+    args:
+      environment: staging
+    # Adding a context to .kluctl.yaml helps prevent accidentally deploying to the wrong cluster!
+    context: devops-directive-kubernetes-course
+
+  - name: production
+    args:
+      environment: production
+    # Adding a context to .kluctl.yaml helps prevent accidentally deploying to the wrong cluster!
+    context: gke_kubernetes-course-424917_us-central1-a_devops-directive-kubernetes-course
+
+args:
+  - name: environment
+
+discriminator: kluctl-{{ target.name }}

12-deploying-to-multiple-environments/kluctl-single-service/Taskfile.yaml

@@ -0,0 +1,37 @@
+version: "3"
+
+tasks:
+  helm-pull:
+    cmds:
+      - kluctl helm-pull
+    desc: "Pre-pull helm charts"
+
+  render-staging:
+    cmds:
+      - kluctl render -t staging --print-all | yq
+    desc: "Render resource yaml with staging values"
+
+  deploy-staging:
+    cmds:
+      - kluctl deploy -t staging
+    desc: "Deploy staging configuration"
+
+  delete-staging:
+    cmds:
+      - kluctl delete -t staging
+    desc: "Render resource yaml with staging values"
+
+  render-production:
+    cmds:
+      - kluctl render -t production --print-all | yq
+    desc: "Render resource yaml with production values"
+
+  deploy-production:
+    cmds:
+      - kluctl deploy -t production
+    desc: "Deploy production configuration"
+
+  delete-production:
+    cmds:
+      - kluctl delete -t production
+    desc: "Render resource yaml with production values"

12-deploying-to-multiple-environments/kluctl-single-service/config/production.yaml

@@ -0,0 +1,2 @@
+sharedVars:
+  hostName: "kubernetes-course.devopsdirective.com"

12-deploying-to-multiple-environments/kluctl-single-service/config/staging.yaml

@@ -0,0 +1,2 @@
+sharedVars:
+  hostName: "kubernetes-course-staging.devopsdirective.com"

12-deploying-to-multiple-environments/kluctl-single-service/deployment.yaml

@@ -0,0 +1,10 @@
+vars:
+  - file: config/{{ args.environment }}.yaml
+
+deployments:
+  - path: namespaces
+  - barrier: true
+  - include: services
+
+commonLabels:
+  devopsdirective.com/course: "kubernetes-course"

12-deploying-to-multiple-environments/kluctl-single-service/namespaces/Namespace.demo-app.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: demo-app

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/config/production.yaml

@@ -0,0 +1,3 @@
+apiGolang:
+  version: 0.3.0 # PRODUCTION_IMAGE_TAG
+  replicas: 2

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/config/staging.yaml

@@ -0,0 +1,3 @@
+apiGolang:
+  version: 0.3.0-2-g29b7fb5 # STAGING_IMAGE_TAG
+  replicas: 1

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/deployment.yaml

@@ -0,0 +1,5 @@
+vars:
+  - file: config/{{ args.environment }}.yaml
+
+deployments:
+  - path: manifests

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/manifests/Deployment.yaml

@@ -0,0 +1,45 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: api-golang
+  namespace: demo-app
+  labels:
+    app: api-golang
+spec:
+  replicas: {{apiGolang.replicas}}
+  selector:
+    matchLabels:
+      app: api-golang
+  template:
+    metadata:
+      labels:
+        app: api-golang
+    spec:
+      containers:
+        - name: api-golang
+          image: sidpalas/devops-directive-docker-course-api-golang:{{ apiGolang.version }}
+          env:
+            - name: PORT
+              value: "8000"
+          envFrom:
+            - secretRef:
+                name: api-golang-database-url
+          ports:
+            - containerPort: 8000
+              protocol: TCP
+          readinessProbe:
+            httpGet:
+              path: /ping
+              port: 8000
+          resources:
+            limits:
+              memory: "100Mi"
+            requests:
+              memory: "100Mi"
+              cpu: "50m"
+          securityContext:
+            allowPrivilegeEscalation: false
+            privileged: false
+      securityContext:
+        seccompProfile:
+          type: RuntimeDefault

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/manifests/IngressRoute.yaml

@@ -0,0 +1,18 @@
+apiVersion: traefik.containo.us/v1alpha1
+kind: IngressRoute
+metadata:
+  name: api-golang
+  namespace: demo-app
+spec:
+  entryPoints:
+    - web
+  routes:
+    - kind: Rule
+      match: Host(`{{ sharedVars.hostName }}`) && PathPrefix(`/api/golang`)
+      middlewares:
+        - name: strip-api-prefixes
+      services:
+        - kind: Service
+          name: api-golang
+          port: 8080
+          scheme: http

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/manifests/Job.db-migrator.yaml

@@ -0,0 +1,22 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: db-migrator
+  namespace: demo-app
+  annotations:
+    kluctl.io/hook: pre-deploy
+    kluctl.io/hook-weight: 2
+spec:
+  template:
+    spec:
+      containers:
+        - name: migrate
+          image: sidpalas/devops-directive-kubernetes-course-db-migrator:{{ apiGolang.version }}
+          args:
+            - -path=/app/migrations
+            - -database=$(DATABASE_URL)?sslmode=disable
+            - up
+          envFrom:
+            - secretRef:
+                name: db-migrator-password
+      restartPolicy: OnFailure

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/manifests/Middleware.yaml

@@ -0,0 +1,10 @@
+apiVersion: traefik.containo.us/v1alpha1
+kind: Middleware
+metadata:
+  name: strip-api-prefixes-golang
+  namespace: demo-app
+spec:
+  stripPrefix:
+    forceSlash: false
+    prefixes:
+      - /api/golang

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/manifests/Secret.db-migrator-password.yaml

@@ -0,0 +1,14 @@
+# ⛔️ DONT PUT SECRET FILES IN VCS
+# Creating this secret here is a bit of a hack to ensure it exists before
+# the db-migrator job which runs as a pre-deploy hook for api-golang
+apiVersion: v1
+kind: Secret
+metadata:
+  name: db-migrator-password
+  namespace: demo-app
+  annotations:
+    kluctl.io/hook: pre-deploy
+    kluctl.io/hook-weight: 1
+type: Opaque
+stringData:
+  DATABASE_URL: postgres://postgres:[email protected]:5432/postgres

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/manifests/Secret.yml

@@ -0,0 +1,9 @@
+# ⛔️ DONT PUT SECRET FILES IN VCS
+apiVersion: v1
+kind: Secret
+type: Opaque
+metadata:
+  name: api-golang-database-url
+  namespace: demo-app
+stringData:
+  DATABASE_URL: postgres://postgres:[email protected]:5432/postgres

12-deploying-to-multiple-environments/kluctl-single-service/services/api-golang/manifests/Service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: api-golang
+  namespace: demo-app
+spec:
+  selector:
+    app: api-golang
+  ports:
+    - protocol: TCP
+      port: 8000
+      targetPort: 8000

12-deploying-to-multiple-environments/kluctl-single-service/services/deployment.yaml

@@ -0,0 +1,2 @@
+deployments:
+  - include: api-golang

12-deploying-to-multiple-environments/kluctl/.kluctl.yaml

@@ -4,14 +4,14 @@ targets:
       environment: staging
       environmentType: non-prod
     # Adding a context to .kluctl.yaml helps prevent accidentally deploying to the wrong cluster!
-    # context: SOME_KUBECTL_CONTEXT
+    context: devops-directive-kubernetes-course
 
   - name: production
     args:
       environment: production
       environmentType: prod
     # Adding a context to .kluctl.yaml helps prevent accidentally deploying to the wrong cluster!
-    # context: SOME_KUBECTL_CONTEXT
+    context: gke_kubernetes-course-424917_us-central1-a_devops-directive-kubernetes-course-2
 
 args:
   - name: environment

12-deploying-to-multiple-environments/kluctl/Taskfile.yaml

@@ -8,7 +8,7 @@ tasks:
 
   render-staging:
     cmds:
-      - kluctl render -t staging --print-all
+      - kluctl render -t staging --print-all | yq
     desc: "Render resource yaml with staging values"
 
   deploy-staging:
@@ -23,7 +23,7 @@ tasks:
 
   render-production:
     cmds:
-      - kluctl render -t production --print-all
+      - kluctl render -t production --print-all | yq
     desc: "Render resource yaml with production values"
 
   deploy-production:

12-deploying-to-multiple-environments/kluctl/services/api-golang/config/production.yaml

@@ -1,2 +1,3 @@
 apiGolang:
   version: 0.3.0 # PRODUCTION_IMAGE_TAG
+  replicas: 2

12-deploying-to-multiple-environments/kluctl/services/api-golang/config/staging.yaml

@@ -1,2 +1,3 @@
 apiGolang:
   version: 0.3.0-2-g29b7fb5 # STAGING_IMAGE_TAG
+  replicas: 1

12-deploying-to-multiple-environments/kluctl/services/api-golang/manifests/Deployment.yaml

@@ -6,7 +6,7 @@ metadata:
   labels:
     app: api-golang
 spec:
-  replicas: 1
+  replicas: {{apiGolang.replicas}}
   selector:
     matchLabels:
       app: api-golang

12-deploying-to-multiple-environments/kluctl/third-party/traefik/kustomization.yaml

@@ -1,4 +1,3 @@
 resources:
   - Namespace.yaml
   - helm-rendered.yaml # generated at deploy time
-

12-deploying-to-multiple-environments/kustomize/Taskfile.yaml

@@ -4,9 +4,9 @@ tasks:
   render-staging:
     desc: "Render staging configuration"
     cmds:
-      - kubectl kustomize ./staging
+      - kubectl kustomize ./staging | yq
 
   render-production:
     desc: "Render production configuration"
     cmds:
-      - kubectl kustomize ./production
+      - kubectl kustomize ./production | yq

12-deploying-to-multiple-environments/kustomize/staging/client-react/patches/IngressRoute.replace-host.yaml

@@ -1,3 +1,3 @@
 - op: replace
   path: /spec/routes/0/match
-  value: "Host(`kubernetes-course.devopsdirective.com`)"
+  value: "Host(`kubernetes-course-staging.devopsdirective.com`)"