✨ cicd: Automate proper version tagging in the bouncer.go that is reported to Crowdsec LAPI (#314)

* cicd(versioning): Automate proper version tagging in the bouncer.go that is reported to Crowdsec LAPI

* cicd(versioning): Move pluginVersion to it's own file

* Disablie lint check for no global variables

* Remove trailing new-line

* Update pluginVersion declaration style

* 🍱 Simplify for tests

Removed the verification step after updating the version and modified the commit message to include an emoji.

---------

Co-authored-by: maxlerebourg <maxlerebourg@gmail.com>

.github/workflows/release.yml

@@ -0,0 +1,46 @@
+name: Release Version Update
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: write
+
+jobs:
+  update-version:
+    name: Update version in source
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+        with:
+          ref: main
+
+      - name: Extract version from tag
+        id: get_version
+        run: |
+          TAG="${{ github.event.release.tag_name }}"
+          VERSION="${TAG#v}"
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
+
+      - name: Update version in version.go
+        run: |
+          sed -i 's/pluginVersion = "[^"]*"/pluginVersion = "'"${{ steps.get_version.outputs.version }}"'"/' version.go
+          cat version.go
+
+      - name: Commit, push, and retag
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add version.go
+          if git diff --cached --quiet; then
+            echo "Version already up to date, nothing to commit"
+            exit 0
+          fi
+          git commit -m "⬆️ chore: bump version to ${{ steps.get_version.outputs.version }}"
+          git push origin main
+          # Move the release tag to include the version update
+          git tag -f "${{ steps.get_version.outputs.tag }}"
+          git push -f origin "${{ steps.get_version.outputs.tag }}"

bouncer.go

@@ -674,7 +674,7 @@ func crowdsecQuery(bouncer *Bouncer, stringURL string, data []byte) ([]byte, err
 		req, _ = http.NewRequest(http.MethodGet, stringURL, nil)
 	}
 	req.Header.Add(bouncer.crowdsecHeader, bouncer.crowdsecKey)
-	req.Header.Add("User-Agent", "Crowdsec-Bouncer-Traefik-Plugin/1.X.X")
+	req.Header.Add("User-Agent", "Crowdsec-Bouncer-Traefik-Plugin/"+pluginVersion)
 
 	res, err := bouncer.httpClient.Do(req)
 	if err != nil {
@@ -779,7 +779,7 @@ func reportMetrics(bouncer *Bouncer) error {
 	metrics := map[string]interface{}{
 		"remediation_components": []map[string]interface{}{
 			{
-				"version": "1.X.X",
+				"version": pluginVersion,
 				"type":    "bouncer",
 				"name":    "traefik_plugin",
 				"metrics": []map[string]interface{}{

version.go

@@ -0,0 +1,4 @@
+package crowdsec_bouncer_traefik_plugin //nolint:revive,stylecheck
+
+// pluginVersion is updated automatically by the release workflow.
+var pluginVersion = "1.5.0" //nolint:gochecknoglobals