add container image for db-migrations

Author: sidpalas

06-demo-application/postgresql/Dockerfile

@@ -0,0 +1,3 @@
+FROM migrate/migrate:v4.17.1
+
+COPY ./migrations/* /app/migrations/

06-demo-application/postgresql/Taskfile.yaml

@@ -1,5 +1,10 @@
 version: "3"
 
+vars:
+  # IMAGE_REPO: localhost:5000/devops-directive-kubernetes-course-db-migrator
+  IMAGE_REPO: sidpalas/devops-directive-kubernetes-course-db-migrator
+  IMAGE_TAG: foobarbaz
+
 tasks:
   run-postgres:
     desc: Start postgres container
@@ -12,5 +17,20 @@ tasks:
     cmds:
       - |
         CONTAINER_ID=$(docker ps -q --filter "ancestor=postgres:16.3-alpine")
-        docker cp ./init.sql $CONTAINER_ID:/tmp/
+        docker cp ./migrations/init.sql $CONTAINER_ID:/tmp/
         docker exec $CONTAINER_ID psql -U "postgres" -f /tmp/init.sql
+
+  build-container-image:
+    desc: Build container image
+    cmds:
+      - docker build -t {{.IMAGE_REPO}}{{.IMAGE_TAG}} .
+
+  build-container-image-multi-arch:
+    desc: Build multi-arch container image
+    cmds:
+      - |
+        docker buildx build \
+        --platform linux/amd64,linux/arm64 \
+        -t {{.IMAGE_REPO}}:{{.IMAGE_TAG}} \
+        --push \
+        .

06-demo-application/postgresql/migrations/000001_create_users_table.down.sql

@@ -0,0 +1,2 @@
+-- Delete the table
+DROP TABLE public.request;

06-demo-application/postgresql/init.sql renamed to 06-demo-application/postgresql/migrations/000001_create_users_table.up.sql

@@ -3,8 +3,3 @@ CREATE TABLE IF NOT EXISTS public.request (
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     api_name VARCHAR(10) NOT NULL CHECK (api_name IN ('node', 'go'))
 );
-
--- -- Optionally, insert initial data
--- INSERT INTO view (api_name) VALUES ('node');
--- INSERT INTO view (api_name) VALUES ('go');
--- INSERT INTO view (api_name) VALUES ('go');

07-deploying-demo-application/postgresql/Configmap.db-migrations.yaml

@@ -1,26 +1,19 @@
 apiVersion: batch/v1
 kind: Job
 metadata:
-  name: migrate-job
+  name: db-migrator
   namespace: demo-app
 spec:
   template:
     spec:
       containers:
         - name: migrate
-          image: migrate/migrate:v4.17.1
+          image: sidpalas/devops-directive-kubernetes-course-db-migrator:foobarbaz
           args:
-            - -path=/migrations
+            - -path=/app/migrations
             - -database=$(DATABASE_URL)?sslmode=disable
             - up
           envFrom:
             - secretRef:
                 name: db-password
-          volumeMounts:
-            - name: migrations
-              mountPath: /migrations
       restartPolicy: OnFailure
-      volumes:
-        - name: migrations
-          configMap:
-            name: db-migrations

07-deploying-demo-application/postgresql/Job.db-migrator.yaml

@@ -16,6 +16,5 @@ tasks:
   apply-initial-db-migration-job:
     desc: "Run init.sql script against the DB"
     cmds:
-      - "kubectl apply -f Configmap.db-migrations.yaml"
       - "kubectl apply -f Secret.db-password.yaml"
       - "kubectl apply -f Job.db-migrator.yaml"

07-deploying-demo-application/postgresql/Taskfile.yaml

@@ -0,0 +1,21 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: db-migrator
+  namespace: demo-app
+  annotations:
+    kluctl.io/hook: pre-deploy
+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-password
+      restartPolicy: OnFailure

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

@@ -0,0 +1,11 @@
+# ⛔️ DONT PUT SECRET FILES IN VCS
+apiVersion: v1
+kind: Secret
+metadata:
+  name: db-password
+  namespace: demo-app
+  annotations:
+    kluctl.io/hook: pre-deploy
+type: Opaque
+stringData:
+  DATABASE_URL: postgres://postgres:[email protected]:5432/postgres