feat: add sha/version tagging and feature branch support

.gitea/workflows/rsyncd.yaml

@@ -2,9 +2,14 @@ name: Build and push rsyncd image
 run-name: ${{ gitea.actor }} is building and pushing rsyncd image
 on:
   push:
+    branches:
+      - main
+      - 'feat/**'
     paths:
       - 'rsyncd/**'
       - '.gitea/workflows/rsyncd.yaml'
+    tags:
+      - 'v*'
 
 env:
   RESULT_IMAGE_NAME: tools/rsyncd
@@ -28,6 +33,22 @@ jobs:
           echo "${{ vars.PRIVATE_REGISTRY_CA_CERT }}" | sudo tee /usr/local/share/ca-certificates/private-ca.crt > /dev/null
           sudo update-ca-certificates
 
+      - name: Compute image tags
+        id: tags
+        run: |
+          BASE="${{ vars.PRIVATE_REGISTRY_DOMAIN }}/${{ env.RESULT_IMAGE_NAME }}"
+          {
+            echo "value<<EOF"
+            echo "${BASE}:${{ gitea.sha }}"
+            if [ "${{ gitea.ref_name }}" = "main" ]; then
+              echo "${BASE}:latest"
+            fi
+            if [[ "${{ gitea.ref }}" == refs/tags/v* ]]; then
+              echo "${BASE}:${{ gitea.ref_name }}"
+            fi
+            echo "EOF"
+          } >> "$GITHUB_OUTPUT"
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
 
@@ -44,4 +65,4 @@ jobs:
           context: rsyncd
           platforms: linux/amd64,linux/arm64
           push: true
-          tags: ${{ vars.PRIVATE_REGISTRY_DOMAIN }}/${{ env.RESULT_IMAGE_NAME }}:latest
+          tags: ${{ steps.tags.outputs.value }}

.gitea/workflows/telegraf-snmp.yaml

@@ -2,9 +2,14 @@ name: Build and push telegraf-snmp image
 run-name: ${{ gitea.actor }} is building and pushing telegraf-snmp image
 on:
   push:
+    branches:
+      - main
+      - 'feat/**'
     paths:
       - 'telegraf-snmp/**'
       - '.gitea/workflows/telegraf-snmp.yaml'
+    tags:
+      - 'v*'
 
 env:
   RESULT_IMAGE_NAME: tools/telegraf-snmp
@@ -28,6 +33,22 @@ jobs:
           echo "${{ vars.PRIVATE_REGISTRY_CA_CERT }}" | sudo tee /usr/local/share/ca-certificates/private-ca.crt > /dev/null
           sudo update-ca-certificates
 
+      - name: Compute image tags
+        id: tags
+        run: |
+          BASE="${{ vars.PRIVATE_REGISTRY_DOMAIN }}/${{ env.RESULT_IMAGE_NAME }}"
+          {
+            echo "value<<EOF"
+            echo "${BASE}:${{ gitea.sha }}"
+            if [ "${{ gitea.ref_name }}" = "main" ]; then
+              echo "${BASE}:latest"
+            fi
+            if [[ "${{ gitea.ref }}" == refs/tags/v* ]]; then
+              echo "${BASE}:${{ gitea.ref_name }}"
+            fi
+            echo "EOF"
+          } >> "$GITHUB_OUTPUT"
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
 
@@ -44,4 +65,4 @@ jobs:
           context: telegraf-snmp
           platforms: linux/amd64,linux/arm64
           push: true
-          tags: ${{ vars.PRIVATE_REGISTRY_DOMAIN }}/${{ env.RESULT_IMAGE_NAME }}:latest
+          tags: ${{ steps.tags.outputs.value }}

README.md

@@ -0,0 +1,11 @@
+# container-images
+
+## CI Workflows
+
+| Trigger | Tags gebaut |
+|---|---|
+| Push auf `feat/**` | `:<sha>` |
+| Push/Merge auf `main` | `:<sha>` + `:latest` |
+| `git tag v1.0.0 && git push origin v1.0.0` | `:<sha>` + `:v1.0.0` |
+
+`:latest` wird nur durch Pushes auf `main` überschrieben. Feature-Branches bauen immer, lassen `:latest` aber unberührt.