add mutliple images update

Author: ming.hsu

Dockerfile

@@ -1,16 +1,15 @@
 FROM line/kubectl-kustomize:1.20.2-3.9.1
 
-RUN mkdir -p /app
-WORKDIR /app
-COPY entrypoint.sh .
-RUN chmod +x entrypoint.sh
+COPY entrypoint.sh /bin/
+RUN chmod +x /bin/entrypoint.sh
 
 ENV SSH_KEY=
-ENV IMAGE_REPO=
+ENV IMAGES=
 ENV IMAGE_TAG=
 ENV MANIFEST_HOST=
 ENV MANIFEST_USER=
 ENV MANIFEST_REPO=
-ENV SVC_PATH=
+ENV MANIFEST_BRANCH=
+ENV KUSTOMIZATION=
 
-ENTRYPOINT ["/app/entrypoint.sh"]
+ENTRYPOINT ["/bin/entrypoint.sh"]

README.md

@@ -3,17 +3,18 @@ A Drone CI plugin for updating an image tag using kustomize.
 
 Environment variables:
 - `SSH_KEY`: Base64-encoded private key of your manifest repo
-- `MANIFEST_HOST`: Git server host
-- `MANIFEST_USER`: Git user
-- `MANIFEST_REPO`: Git repository
-- `IMAGE_REPO`: Image repository
+- `MANIFEST_HOST`: Manifest git server host
+- `MANIFEST_USER`: Manifest git user
+- `MANIFEST_REPO`: Manifest git repository
+- `MANIFEST_BRANCH`: Manifest repository branch
+- `IMAGES`: Updated images (comma-separated list)
 - `IMAGE_TAG`: Image tag generated in current build
-- `SVC_PATH`: Service kustomization path relative to the project root
+- `KUSTOMIZATION`: Kustomization path relative to the project root
 
 Example usage in a Drone pipeline:
 ```yaml
 ...
-- name: push-registry
+- name: publish-mysvc1
   image: plugins/docker
   settings:
     context: .
@@ -23,27 +24,45 @@ Example usage in a Drone pipeline:
     password:
       from_secret: docker_password
     registry: harbor.mycompany.com
-    repo: harbor.mycompany.com/myuser/mysvc
+    repo: harbor.mycompany.com/myuser/mysvc1
+    tags:
+      - ${DRONE_COMMIT_BRANCH}-${DRONE_COMMIT_SHA:0:7}
+      - latest
+  when:
+    event: push
+- name: publish-mysvc2
+  image: plugins/docker
+  settings:
+    context: .
+    dockerfile: ./Dockerfile
+    username:
+      from_secret: docker_username
+    password:
+      from_secret: docker_password
+    registry: harbor.mycompany.com
+    repo: harbor.mycompany.com/myuser/mysvc2
     tags:
       - ${DRONE_COMMIT_BRANCH}-${DRONE_COMMIT_SHA:0:7}
       - latest
   when:
     event: push
 - name: update-kustomization
   pull: if-not-exists
-  image: minghsu0107/update-kustomization:v1.0.2
+  image: minghsu0107/update-kustomization:v1.0.3
   environment:
     SSH_KEY:
       from_secret: ssh_key
     MANIFEST_HOST: git.mycompany.com
     MANIFEST_USER: myuser
     MANIFEST_REPO: mysvc
-    IMAGE_REPO: harbor.mycompany.com/myuser/mysvc
+    MANIFEST_BRANCH: ${DRONE_COMMIT_BRANCH}
+    IMAGES: harbor.mycompany.com/myuser/mysvc1,harbor.mycompany.com/myuser/mysvc2
     IMAGE_TAG: ${DRONE_COMMIT_BRANCH}-${DRONE_COMMIT_SHA:0:7}
-    SVC_PATH: staging/mysvc
+    KUSTOMIZATION: staging/mysvc
   when:
     event: push
   depends_on:
-    - push-registry
+    - publish-mysvc1
+    - publish-mysvc2
 ```
 In the above example, the image tag is in the form of `${DRONE_COMMIT_BRANCH}-${DRONE_COMMIT_SHA:0:7}`, where `DRONE_COMMIT_BRANCH` and `DRONE_COMMIT_SHA` are environment variables provided by Drone at run time. 

entrypoint.sh

@@ -2,6 +2,14 @@
 apk update && apk add --no-cache git && apk add --no-cache openssh
 mkdir -p ~/.ssh && echo $SSH_KEY | base64 -d > ~/.ssh/id_rsa && chmod 700 ~/.ssh/id_rsa && ssh-keyscan $MANIFEST_HOST >> ~/.ssh/known_hosts
 rm -rf $MANIFEST_REPO && git clone ssh://git@$MANIFEST_HOST/$MANIFEST_USER/$MANIFEST_REPO.git
-cd $MANIFEST_REPO/$SVC_PATH && kustomize edit set image $IMAGE_REPO:$IMAGE_TAG
-git add . && git commit -m "🚀 update to ${IMAGE_TAG}"
+
+git checkout $MANIFEST_BRANCH
+cd $MANIFEST_REPO/$KUSTOMIZATION
+
+for IMAGE in $(echo $IMAGES | sed "s/,/ /g")
+do
+    kustomize edit set image $IMAGE:$IMAGE_TAG
+done
+
+git add . && git commit --allow-empty -m "🚀 update to ${IMAGE_TAG}"
 git push ssh://git@$MANIFEST_HOST/$MANIFEST_USER/$MANIFEST_REPO.git