ci: setup release-please (#437)

Setup release-please to automate creating new tags according to semver
rules.

Updated referenced versions to latest released version to fix #431, new
version should be bumped automatically by release-please.

Backfill changelog entries that were only on GitHub Releases.

Author: apricote

.github/workflows/release-please.yml

@@ -0,0 +1,20 @@
+on:
+  push:
+    branches:
+      - main
+name: release-please
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: google-github-actions/release-please-action@v3
+        with:
+          release-type: go
+          package-name: hcloud-cloud-controller-manager
+
+          # These files reference the version in the OCI image tag.
+          extra-files: |
+            deploy/ccm.yaml
+            deploy/ccm-networks.yaml
+            chart/Chart.yaml

CHANGELOG.md

@@ -1,4 +1,4 @@
 apiVersion: v2
 name: hcloud-cloud-controller-manager
 type: application
-version: v1.13.2
+version: v1.15.0 # x-release-please-version

chart/Chart.yaml

@@ -66,7 +66,7 @@ spec:
             - name: HCLOUD_METRICS_ENABLED
               value: "false"
             {{- end }}
-          image: {{ $.Values.image.repository }}:{{ tpl $.Values.image.tag . }}
+          image: {{ $.Values.image.repository }}:{{ tpl $.Values.image.tag . }} # x-release-please-version
           ports:
             {{- if $.Values.monitoring.enabled }}
             - name: metrics

chart/templates/deployment.yaml

@@ -83,7 +83,7 @@ spec:
                 secretKeyRef:
                   name: hcloud
                   key: network
-          image: hetznercloud/hcloud-cloud-controller-manager:v1.13.2
+          image: hetznercloud/hcloud-cloud-controller-manager:v1.15.0 # x-release-please-version
           ports:
             - name: metrics
               containerPort: 8233

deploy/ccm-networks.yaml

@@ -75,7 +75,7 @@ spec:
               valueFrom:
                 fieldRef:
                   fieldPath: spec.nodeName
-          image: hetznercloud/hcloud-cloud-controller-manager:v1.13.2
+          image: hetznercloud/hcloud-cloud-controller-manager:v1.15.0 # x-release-please-version
           ports:
             - name: metrics
               containerPort: 8233