fix: add nixpacks build and push to ci

.github/workflows/build_and_publish.yml

@@ -71,6 +71,36 @@ jobs:
           body: ${{ steps.changelog.outputs.clean_changelog }}
           tag_name: ${{ steps.changelog.outputs.tag }}
 
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        if: ${{ steps.changelog.outputs.skipped == 'false' }}
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          # gh secret set GH_PERSONAL_TOKEN --app actions --body ghp_
+          password: ${{ secrets.GH_PERSONAL_TOKEN }}
+
+      - name: Install nixpacks
+        if: ${{ steps.changelog.outputs.skipped == 'false' }}
+        run: |
+          curl -sSL https://nixpacks.com/install.sh | bash
+
+      - name: Nixpacks version
+        if: ${{ steps.changelog.outputs.skipped == 'false' }}
+        run: |
+          nixpacks --version
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Build with nixpacks
+        if: ${{ steps.changelog.outputs.skipped == 'false' }}
+        run: |
+          # TODO remove this once nixpacks supports poetry
+          export NIXPACKS_PYTHON_VERSION="${{ steps.versions.outputs.python }}"
+          export NIXPACKS_POETRY_VERSION="${{ steps.versions.outputs.poetry }}"
+          make docker-push
+
       - name: Sync Repository Metadata
         # uses: kbrashears5/github-action-repo-sync@v1.0.0
         uses: iloveitaly/github-action-repo-sync@python

Makefile

@@ -4,11 +4,13 @@ IMAGE_TAG ?= latest
 GITHUB_REPOSITORY ?= $(shell gh repo view --json nameWithOwner --jq '.nameWithOwner' | tr -d '[:space:]')
 IMAGE_NAME ?= ghcr.io/$(GITHUB_REPOSITORY)
 
-# NOTE this requires a custom nixpacks build to work:
+# TODO once nixpacks is updated to support asdf we can remove hardcoded environment variables below
 # 		 https://github.com/railwayapp/nixpacks/pulls?q=is%3Apr+author%3Ailoveitaly
 
 # label is important here in order for the package to show up on the github repo
 BUILD_CMD = nixpacks build . --name $(IMAGE_NAME) \
+		--env NIXPACKS_PYTHON_VERSION \
+		--env NIXPACKS_POETRY_VERSION \
 		--label org.opencontainers.image.source=https://github.com/$(GITHUB_REPOSITORY) \
 		--platform linux/arm64/v8 \
 		--tag $(IMAGE_TAG)