Add versioning support

Author: Gchbg

.github/workflows/publish-container.yaml

@@ -8,6 +8,9 @@ on:
     branches:
     - main
   pull_request:
+  release:
+    types:
+    - released
 
 jobs:
   publish-docker:
@@ -62,4 +65,5 @@ jobs:
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}
         file: Containerfile
+        build-args: version=${{ github.event.release.tag_name || 'dev' }}
         push: true

Containerfile

@@ -9,7 +9,9 @@ RUN go mod download
 
 COPY cmd/ cmd/
 COPY internal/ internal/
-RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o glci github.com/gardenlinux/glci/cmd
+ARG version=dev
+RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o glci \
+    -ldflags "-X main.version=${version}" github.com/gardenlinux/glci/cmd
 
 FROM docker.io/library/debian:bookworm-20250630-slim
 WORKDIR /

cmd/main.go

@@ -12,9 +12,6 @@ import (
 	"github.com/gardenlinux/glci/internal/log"
 )
 
-// Version is the released version of GLCI, or "dev".
-const Version = "dev"
-
 func main() {
 	var exitCode int
 	defer func() {
@@ -24,7 +21,7 @@ func main() {
 	mainCmd, cfg, err := cmd.Setup("glci", func(c *cobra.Command) {
 		c.Use = "glci"
 		c.Short = "GLCI - Garden Linux continuous integration"
-		c.Version = Version
+		c.Version = version
 		c.PersistentFlags().Bool("dev", false, "run in development mode")
 		c.PersistentFlags().String("config-file", "", "path to configuration file")
 		c.AddCommand(publishCmd())

cmd/version.go

@@ -0,0 +1,3 @@
+package main
+
+var version = "dev"