add drone pipeline for kustomize

.drone.yml

@@ -0,0 +1,82 @@
+kind: pipeline
+name: deploy
+steps:
+- name: kustomize build dashboard (prod + staging)
+  image: aaronriedel/kustomize-ci
+  commands:
+    - cd /deployment-repo
+    - git clone https://git.ar21.de/yolokube/core-deployments.git .
+    - cd /deployment-repo/dashboard/overlays/prod
+    - kustomize build -o /deployment-repo/dashboard/prod/dashboard.yaml
+    - cd /deployment-repo/dashboard/overlays/staging
+    - kustomize build -o /deployment-repo/dashboard/staging/dashboard.yaml
+  volumes:
+  - name: deployment-repo
+    path: /deployment-repo
+  when:
+    branch:
+      - main
+    event:
+      - push
+- name: kustomize build dashboard (staging)
+  image: aaronriedel/kustomize-ci
+  commands:
+    - cd /deployment-repo
+    - git clone https://git.ar21.de/yolokube/core-deployments.git .
+    - cd /deployment-repo/dashboard/overlays/staging
+    - kustomize build -o /deployment-repo/dashboard/staging/dashboard.yaml
+  volumes:
+  - name: deployment-repo
+    path: /deployment-repo
+  when:
+    branch:
+      exclude:
+        - main
+    event:
+      - push
+- name: kustomize push dashboard changes (prod + staging)
+  image: appleboy/drone-git-push
+  settings:
+    branch: main
+    remote: ssh://git@git.ar21.de:2222/yolokube/core-deployments.git
+    path: /deployment-repo
+    force: false
+    commit: true
+    commit_message: "KUSTOMIZE BUILD: rebuild dashboard deployment with kustomize ${DRONE_BUILD_NUMBER} (done automagically via Drone pipeline)"
+    ssh_key:
+      from_secret: GITEA_SSH_KEY
+  volumes:
+  - name: deployment-repo
+    path: /deployment-repo
+  when:
+    branch:
+      - main
+    event:
+      - push
+- name: kustomize push dashboard changes (staging)
+  image: appleboy/drone-git-push
+  settings:
+    branch: main
+    remote: ssh://git@git.ar21.de:2222/yolokube/core-deployments.git
+    path: /deployment-repo
+    force: false
+    commit: true
+    commit_message: "KUSTOMIZE BUILD STAGING: rebuild dashboard deployment with kustomize ${DRONE_BUILD_NUMBER} (done automagically via Drone pipeline)"
+    ssh_key:
+      from_secret: GITEA_SSH_KEY
+  volumes:
+  - name: deployment-repo
+    path: /deployment-repo
+  when:
+    branch:
+      exclude:
+        - main
+    event:
+      - push
+volumes:
+- name: deployment-repo
+  temp: {}
+when:
+  event:
+    exclude:
+      - pull_request