chore: set build arg for publishing version (#74)

Author: SamMorrowDrums

.github/workflows/docker-publish.yml

@@ -7,24 +7,22 @@ name: Docker
 
 on:
   schedule:
-    - cron: '27 0 * * *'
+    - cron: "27 0 * * *"
   push:
-    branches: [ "main" ]
+    branches: ["main"]
     # Publish semver tags as releases.
-    tags: [ 'v*.*.*' ]
+    tags: ["v*.*.*"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 env:
   # Use docker.io for Docker Hub if empty
   REGISTRY: ghcr.io
   # github.repository as <account>/<repo>
   IMAGE_NAME: ${{ github.repository }}
 
-
 jobs:
   build:
-
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -43,7 +41,7 @@ jobs:
         if: github.event_name != 'pull_request'
         uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 #v3.5.0
         with:
-          cosign-release: 'v2.2.4'
+          cosign-release: "v2.2.4"
 
       # Set up BuildKit Docker container builder to be able to build
       # multi-platform images and export cache
@@ -82,6 +80,8 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           platforms: linux/amd64,linux/arm64
+          build-args:
+            VERSION: ${{ github.ref_name }}
 
       # Sign the resulting Docker image digest except on PRs.
       # This will only write to the public Rekor transparency log when the Docker

Dockerfile

@@ -1,6 +1,8 @@
 ARG VERSION="dev"
 
 FROM golang:1.23.7 AS build
+# allow this step access to build arg
+ARG VERSION
 # Set the working directory
 WORKDIR /build
 # Copy the current directory contents into the working directory