add docker release (#108)

.github/workflows/release-docker.yml

@@ -0,0 +1,115 @@
+# **what?**
+# This workflow will generate a series of docker images for dbt and push them to the github container registry
+#
+# **why?**
+# Docker images for dbt are used in a number of important places throughout the dbt ecosystem.
+# This is how we keep those images up-to-date.
+#
+# **when?**
+# This is triggered manually
+name: Docker release
+
+permissions:
+  packages: write
+
+on:
+  workflow_dispatch:
+    inputs:
+      package:
+        description: The package to release
+        type: choice
+        options:
+          - dbt-core
+          - dbt-bigquery
+          - dbt-postgres
+          - dbt-redshift
+          - dbt-snowflake
+          - dbt-spark
+        required: true
+      version_number:
+        description: The version number to release as a SemVer (e.g. 1.0.0b1, without `latest` or `v`)
+        required: true
+      test_run:
+        description: Test Run (don't publish)
+        type: boolean
+        default: false
+
+  workflow_call:
+    inputs:
+      package:
+        description: The package to release
+        type: string
+        required: true
+      version_number:
+        description: The version number to release as a SemVer (e.g. 1.0.0b1, without `latest` or `v`)
+        type: string
+        required: true
+      test_run:
+        description: Test Run (don't publish)
+        type: boolean
+        default: false
+
+jobs:
+  version_metadata:
+    name: Get version metadata
+    runs-on: ubuntu-latest
+    outputs:
+      fully_qualified_tags: ${{ steps.tags.outputs.fully_qualified_tags }}
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Get the tags to publish
+        id: tags
+        uses: ./.github/actions/latest-wrangler
+        with:
+          package_name: ${{ inputs.package }}
+          new_version: ${{ inputs.version_number }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+  setup_image_builder:
+    name: Set up Docker image builder
+    runs-on: ubuntu-latest
+    needs: [version_metadata]
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+  build_and_push:
+    name: Build images and push to GHCR
+    runs-on: ubuntu-latest
+    needs: [setup_image_builder, version_metadata]
+    steps:
+      - name: Get docker build arg
+        id: build_arg
+        run: |
+          BUILD_ARG_NAME=$(echo ${{ inputs.package }} | sed 's/\-/_/g')
+          BUILD_ARG_VALUE=$(echo ${{ inputs.package }} | sed 's/postgres/core/g')
+          echo "name=$BUILD_ARG_NAME" >> $GITHUB_OUTPUT
+          echo "value=$BUILD_ARG_VALUE" >> $GITHUB_OUTPUT
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Log publishing configuration
+        shell: bash
+        run: |
+          echo Package:          ${{ inputs.package }}
+          echo Version:          ${{ inputs.version_number }}
+          echo Tags:             ${{ needs.version_metadata.outputs.fully_qualified_tags }}
+          echo Build Arg Name:   ${{ steps.build_arg.outputs.name }}
+          echo Build Arg Value:  ${{ steps.build_arg.outputs.value }}
+
+      - name: Build and push `${{ inputs.package }}`
+        if: ${{ !inputs.dry_run }}
+        uses: docker/build-push-action@v5
+        with:
+          file: docker/Dockerfile
+          push: True
+          target: ${{ inputs.package }}
+          build-args: ${{ steps.build_arg.outputs.name }}_ref=${{ steps.build_arg.outputs.value }}@v${{ inputs.version_number }}
+          tags: ${{ needs.version_metadata.outputs.fully_qualified_tags }}