publishing with intentional architecture

.gitea/workflows/publish.yml

@@ -1,7 +1,27 @@
-name: Publish Images And Chart
+name: Publish Images
 
 on:
   workflow_dispatch:
+    inputs:
+      target_arch:
+        description: Architecture to publish
+        type: choice
+        options:
+          - all
+          - amd64
+          - arm64
+        default: all
+      target_image:
+        description: Image to publish
+        type: choice
+        options:
+          - all
+          - api
+          - executor
+          - notifier
+          - agent
+          - web
+        default: all
   push:
     branches:
       - main
@@ -13,21 +33,26 @@ env:
   REGISTRY_HOST: ${{ vars.CLUSTER_GITEA_HOST }}
   REGISTRY_NAMESPACE: ${{ vars.CONTAINER_REGISTRY_NAMESPACE }}
   REGISTRY_PLAIN_HTTP: ${{ vars.CONTAINER_REGISTRY_INSECURE }}
-  CHART_NAME: attune
+  ARTIFACT_REPOSITORY: attune-build-artifacts
+  CARGO_TERM_COLOR: always
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  RUSTUP_MAX_RETRIES: 10
+  RUST_MIN_STACK: 67108864
+  SQLX_OFFLINE: true
+  RUNNER_TOOL_CACHE: /toolcache
 
 jobs:
   metadata:
     name: Resolve Publish Metadata
-    runs-on: ubuntu-latest
+    runs-on: build-amd64
     outputs:
       registry: ${{ steps.meta.outputs.registry }}
       namespace: ${{ steps.meta.outputs.namespace }}
       registry_plain_http: ${{ steps.meta.outputs.registry_plain_http }}
       image_tag: ${{ steps.meta.outputs.image_tag }}
       image_tags: ${{ steps.meta.outputs.image_tags }}
-      chart_version: ${{ steps.meta.outputs.chart_version }}
-      app_version: ${{ steps.meta.outputs.app_version }}
-      release_channel: ${{ steps.meta.outputs.release_channel }}
+      artifact_ref_base: ${{ steps.meta.outputs.artifact_ref_base }}
     steps:
       - name: Resolve tags and registry paths
         id: meta
@@ -78,97 +103,400 @@ jobs:
           if [ "$ref_type" = "tag" ] && printf '%s' "$ref_name" | grep -Eq '^v[0-9]+\.[0-9]+\.[0-9]+([-.].*)?$'; then
             version="${ref_name#v}"
             image_tags="${version},latest,sha-${short_sha}"
-            chart_version="$version"
-            release_channel="release"
           else
             version="sha-${short_sha}"
             image_tags="edge,sha-${short_sha}"
-            chart_version="0.0.0-dev.${{ github.run_number }}"
-            release_channel="edge"
           fi
 
+          artifact_ref_base="${registry}/${namespace}/${ARTIFACT_REPOSITORY}"
+
           {
             echo "registry=$registry"
             echo "namespace=$namespace"
             echo "registry_plain_http=$registry_plain_http"
             echo "image_tag=$version"
             echo "image_tags=$image_tags"
-            echo "chart_version=$chart_version"
-            echo "app_version=$version"
-            echo "release_channel=$release_channel"
+            echo "artifact_ref_base=$artifact_ref_base"
           } >> "$GITHUB_OUTPUT"
 
-  publish-images:
-    name: Publish ${{ matrix.image.name }}
-    runs-on: ubuntu-latest
+  build-rust-bundles:
+    name: Build Rust Bundles (${{ matrix.arch }})
+    runs-on: ${{ matrix.runner_label }}
     needs: metadata
+    if: |
+      github.event_name != 'workflow_dispatch' ||
+      inputs.target_arch == 'all' ||
+      inputs.target_arch == matrix.arch
     strategy:
       fail-fast: false
       matrix:
-        image:
-          - name: api
-            repository: attune-api
-            dockerfile: docker/Dockerfile.optimized
-            context: .
-            target: ""
-            build_args: |
-              SERVICE=api
-          - name: executor
-            repository: attune-executor
-            dockerfile: docker/Dockerfile.optimized
-            context: .
-            target: ""
-            build_args: |
-              SERVICE=executor
-          - name: notifier
-            repository: attune-notifier
-            dockerfile: docker/Dockerfile.optimized
-            context: .
-            target: ""
-            build_args: |
-              SERVICE=notifier
-          - name: sensor
-            repository: attune-sensor
-            dockerfile: docker/Dockerfile.sensor.optimized
-            context: .
-            target: sensor-full
-            build_args: ""
-          - name: worker
-            repository: attune-worker
-            dockerfile: docker/Dockerfile.worker.optimized
-            context: .
-            target: worker-full
-            build_args: ""
-          - name: web
-            repository: attune-web
-            dockerfile: docker/Dockerfile.web
-            context: .
-            target: ""
-            build_args: ""
-          - name: migrations
-            repository: attune-migrations
-            dockerfile: docker/Dockerfile.migrations
-            context: .
-            target: ""
-            build_args: ""
-          - name: init-user
-            repository: attune-init-user
-            dockerfile: docker/Dockerfile.init-user
-            context: .
-            target: ""
-            build_args: ""
-          - name: init-packs
-            repository: attune-init-packs
-            dockerfile: docker/Dockerfile.init-packs
-            context: .
-            target: ""
-            build_args: ""
-          - name: agent
-            repository: attune-agent
-            dockerfile: docker/Dockerfile.agent
-            context: .
-            target: agent-init
-            build_args: ""
+        include:
+          - arch: amd64
+            runner_label: build-amd64
+            musl_target: x86_64-unknown-linux-musl
+          - arch: arm64
+            runner_label: build-arm64
+            musl_target: aarch64-unknown-linux-musl
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Cache Rust toolchain
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.rustup/toolchains
+            ~/.rustup/update-hashes
+          key: rustup-publish-${{ runner.os }}-${{ matrix.arch }}-stable-v1
+          restore-keys: |
+            rustup-${{ runner.os }}-${{ matrix.arch }}-stable-v1
+            rustup-${{ runner.os }}-stable-v1
+            rustup-
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.musl_target }}
+
+      - name: Cache Cargo registry + index
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry/index
+            ~/.cargo/registry/cache
+            ~/.cargo/git/db
+          key: cargo-registry-publish-${{ matrix.arch }}-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            cargo-registry-publish-${{ matrix.arch }}-
+            cargo-registry-
+
+      - name: Cache Cargo build artifacts
+        uses: actions/cache@v4
+        with:
+          path: target
+          key: cargo-publish-${{ matrix.arch }}-${{ hashFiles('**/Cargo.lock') }}-${{ hashFiles('**/*.rs', '**/Cargo.toml') }}
+          restore-keys: |
+            cargo-publish-${{ matrix.arch }}-${{ hashFiles('**/Cargo.lock') }}-
+            cargo-publish-${{ matrix.arch }}-
+
+      - name: Install native build dependencies
+        shell: bash
+        run: |
+          set -euo pipefail
+          apt-get update
+          apt-get install -y pkg-config libssl-dev musl-tools file
+
+      - name: Build release binaries
+        shell: bash
+        run: |
+          set -euo pipefail
+          cargo build --release \
+            --bin attune-api \
+            --bin attune-executor \
+            --bin attune-notifier
+
+      - name: Build static agent binaries
+        shell: bash
+        run: |
+          set -euo pipefail
+          cargo build --release \
+            --target "${{ matrix.musl_target }}" \
+            --bin attune-agent \
+            --bin attune-sensor-agent
+
+      - name: Assemble binary bundle
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          bundle_root="dist/bundle/${{ matrix.arch }}"
+          mkdir -p "$bundle_root/bin" "$bundle_root/agent"
+
+          cp target/release/attune-api "$bundle_root/bin/"
+          cp target/release/attune-executor "$bundle_root/bin/"
+          cp target/release/attune-notifier "$bundle_root/bin/"
+          cp target/${{ matrix.musl_target }}/release/attune-agent "$bundle_root/agent/"
+          cp target/${{ matrix.musl_target }}/release/attune-sensor-agent "$bundle_root/agent/"
+
+          cat > "$bundle_root/metadata.json" <<EOF
+          {
+            "git_sha": "${{ github.sha }}",
+            "ref": "${{ github.ref }}",
+            "arch": "${{ matrix.arch }}",
+            "image_tag": "${{ needs.metadata.outputs.image_tag }}"
+          }
+          EOF
+
+          tar -C dist/bundle/${{ matrix.arch }} -czf "dist/attune-binaries-${{ matrix.arch }}.tar.gz" .
+
+      - name: Setup ORAS
+        uses: oras-project/setup-oras@v1
+
+      - name: Log in to registry for artifacts
+        shell: bash
+        env:
+          REGISTRY_USERNAME: ${{ secrets.CONTAINER_REGISTRY_USERNAME }}
+          REGISTRY_PASSWORD: ${{ secrets.CONTAINER_REGISTRY_PASSWORD }}
+          GITHUB_TOKEN_FALLBACK: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -euo pipefail
+          registry_username="${REGISTRY_USERNAME:-${{ github.actor }}}"
+          registry_password="${REGISTRY_PASSWORD:-${GITHUB_TOKEN_FALLBACK:-}}"
+          login_args=()
+
+          if [ -z "$registry_password" ]; then
+            echo "Set CONTAINER_REGISTRY_PASSWORD or enable GITHUB_TOKEN package writes"
+            exit 1
+          fi
+
+          if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
+            login_args+=(--plain-http)
+          fi
+
+          oras login "${{ needs.metadata.outputs.registry }}" \
+            "${login_args[@]}" \
+            --username "$registry_username" \
+            --password "$registry_password"
+
+      - name: Push binary bundle artifact
+        shell: bash
+        run: |
+          set -euo pipefail
+          push_args=()
+
+          if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
+            push_args+=(--plain-http)
+          fi
+
+          oras push \
+            "${push_args[@]}" \
+            "${{ needs.metadata.outputs.artifact_ref_base }}:rust-binaries-${{ needs.metadata.outputs.image_tag }}-${{ matrix.arch }}" \
+            --artifact-type application/vnd.attune.rust-binaries.v1 \
+            "dist/attune-binaries-${{ matrix.arch }}.tar.gz:application/vnd.attune.rust-binaries.layer.v1.tar+gzip"
+
+  publish-rust-images:
+    name: Publish ${{ matrix.image.name }} (${{ matrix.arch }})
+    runs-on: ${{ matrix.runner_label }}
+    needs:
+      - metadata
+      - build-rust-bundles
+    if: |
+      (github.event_name != 'workflow_dispatch' ||
+      inputs.target_arch == 'all' ||
+      inputs.target_arch == matrix.arch) &&
+      (github.event_name != 'workflow_dispatch' ||
+      inputs.target_image == 'all' ||
+      inputs.target_image == matrix.image.name)
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: amd64
+            runner_label: build-amd64
+            platform: linux/amd64
+            image:
+              name: api
+              repository: attune-api
+              source_path: bin/attune-api
+              dockerfile: docker/Dockerfile.runtime
+          - arch: amd64
+            runner_label: build-amd64
+            platform: linux/amd64
+            image:
+              name: executor
+              repository: attune-executor
+              source_path: bin/attune-executor
+              dockerfile: docker/Dockerfile.runtime
+          - arch: amd64
+            runner_label: build-amd64
+            platform: linux/amd64
+            image:
+              name: notifier
+              repository: attune-notifier
+              source_path: bin/attune-notifier
+              dockerfile: docker/Dockerfile.runtime
+          - arch: amd64
+            runner_label: build-amd64
+            platform: linux/amd64
+            image:
+              name: agent
+              repository: attune-agent
+              source_path: agent/attune-agent
+              dockerfile: docker/Dockerfile.agent-package
+          - arch: arm64
+            runner_label: build-arm64
+            platform: linux/arm64
+            image:
+              name: api
+              repository: attune-api
+              source_path: bin/attune-api
+              dockerfile: docker/Dockerfile.runtime
+          - arch: arm64
+            runner_label: build-arm64
+            platform: linux/arm64
+            image:
+              name: executor
+              repository: attune-executor
+              source_path: bin/attune-executor
+              dockerfile: docker/Dockerfile.runtime
+          - arch: arm64
+            runner_label: build-arm64
+            platform: linux/arm64
+            image:
+              name: notifier
+              repository: attune-notifier
+              source_path: bin/attune-notifier
+              dockerfile: docker/Dockerfile.runtime
+          - arch: arm64
+            runner_label: build-arm64
+            platform: linux/arm64
+            image:
+              name: agent
+              repository: attune-agent
+              source_path: agent/attune-agent
+              dockerfile: docker/Dockerfile.agent-package
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup ORAS
+        uses: oras-project/setup-oras@v1
+
+      - name: Setup Docker Buildx
+        if: needs.metadata.outputs.registry_plain_http != 'true'
+        uses: docker/setup-buildx-action@v3
+
+      - name: Setup Docker Buildx For Plain HTTP Registry
+        if: needs.metadata.outputs.registry_plain_http == 'true'
+        uses: docker/setup-buildx-action@v3
+        with:
+          buildkitd-config-inline: |
+            [registry."${{ needs.metadata.outputs.registry }}"]
+              http = true
+              insecure = true
+
+      - name: Log in to registry
+        shell: bash
+        env:
+          REGISTRY_USERNAME: ${{ secrets.CONTAINER_REGISTRY_USERNAME }}
+          REGISTRY_PASSWORD: ${{ secrets.CONTAINER_REGISTRY_PASSWORD }}
+          GITHUB_TOKEN_FALLBACK: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -euo pipefail
+          registry_username="${REGISTRY_USERNAME:-${{ github.actor }}}"
+          registry_password="${REGISTRY_PASSWORD:-${GITHUB_TOKEN_FALLBACK:-}}"
+
+          if [ -z "$registry_password" ]; then
+            echo "Set CONTAINER_REGISTRY_PASSWORD or enable GITHUB_TOKEN package writes"
+            exit 1
+          fi
+
+          mkdir -p "$HOME/.docker"
+          auth="$(printf '%s:%s' "$registry_username" "$registry_password" | base64 | tr -d '\n')"
+
+          cat > "$HOME/.docker/config.json" <<EOF
+          {
+            "auths": {
+              "${{ needs.metadata.outputs.registry }}": {
+                "auth": "${auth}"
+              }
+            }
+          }
+          EOF
+
+          oras_login_args=()
+          if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
+            oras_login_args+=(--plain-http)
+          fi
+
+          oras login "${{ needs.metadata.outputs.registry }}" \
+            "${oras_login_args[@]}" \
+            --username "$registry_username" \
+            --password "$registry_password"
+
+      - name: Pull binary bundle
+        shell: bash
+        run: |
+          set -euo pipefail
+          pull_args=()
+
+          if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
+            pull_args+=(--plain-http)
+          fi
+
+          mkdir -p dist/artifact
+          cd dist/artifact
+
+          oras pull \
+            "${pull_args[@]}" \
+            "${{ needs.metadata.outputs.artifact_ref_base }}:rust-binaries-${{ needs.metadata.outputs.image_tag }}-${{ matrix.arch }}"
+
+          tar -xzf "attune-binaries-${{ matrix.arch }}.tar.gz"
+
+      - name: Prepare packaging context
+        shell: bash
+        run: |
+          set -euo pipefail
+          rm -rf dist/image
+          mkdir -p dist/image
+
+          case "${{ matrix.image.name }}" in
+            api|executor|notifier)
+              cp "dist/artifact/${{ matrix.image.source_path }}" dist/attune-service-binary
+              ;;
+            agent)
+              cp dist/artifact/agent/attune-agent dist/attune-agent
+              cp dist/artifact/agent/attune-sensor-agent dist/attune-sensor-agent
+              ;;
+            *)
+              echo "Unsupported image: ${{ matrix.image.name }}"
+              exit 1
+              ;;
+          esac
+
+      - name: Push architecture image
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          image_ref="${{ needs.metadata.outputs.registry }}/${{ needs.metadata.outputs.namespace }}/${{ matrix.image.repository }}:${{ needs.metadata.outputs.image_tag }}-${{ matrix.arch }}"
+
+          build_cmd=(
+            docker buildx build
+            .
+            --platform "${{ matrix.platform }}"
+            --file "${{ matrix.image.dockerfile }}"
+          )
+
+          if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
+            build_cmd+=(--output "type=image,\"name=${image_ref}\",push=true,registry.insecure=true")
+          else
+            build_cmd+=(--tag "$image_ref" --push)
+          fi
+
+          "${build_cmd[@]}"
+
+  publish-web-images:
+    name: Publish web (${{ matrix.arch }})
+    runs-on: ${{ matrix.runner_label }}
+    needs: metadata
+    if: |
+      (github.event_name != 'workflow_dispatch' ||
+      inputs.target_arch == 'all' ||
+      inputs.target_arch == matrix.arch) &&
+      (github.event_name != 'workflow_dispatch' ||
+      inputs.target_image == 'all' ||
+      inputs.target_image == 'web')
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: amd64
+            runner_label: build-amd64
+            platform: linux/amd64
+          - arch: arm64
+            runner_label: build-arm64
+            platform: linux/arm64
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -196,7 +524,6 @@ jobs:
           set -euo pipefail
           username="${REGISTRY_USERNAME:-${{ github.actor }}}"
           password="${REGISTRY_PASSWORD:-${GITHUB_TOKEN_FALLBACK:-}}"
-          registry="${{ needs.metadata.outputs.registry }}"
 
           if [ -z "$password" ]; then
             echo "Set CONTAINER_REGISTRY_PASSWORD or enable GITHUB_TOKEN package writes"
@@ -209,81 +536,56 @@ jobs:
           cat > "$HOME/.docker/config.json" <<EOF
           {
             "auths": {
-              "${registry}": {
+              "${{ needs.metadata.outputs.registry }}": {
                 "auth": "${auth}"
               }
             }
           }
           EOF
 
-      - name: Prepare image tags
-        id: tags
+      - name: Push architecture image
         shell: bash
         run: |
           set -euo pipefail
-          image_ref_base="${{ needs.metadata.outputs.registry }}/${{ needs.metadata.outputs.namespace }}/${{ matrix.image.repository }}"
-          tag_lines=""
-          IFS=',' read -ra tags <<< "${{ needs.metadata.outputs.image_tags }}"
-          for tag in "${tags[@]}"; do
-            tag_lines="${tag_lines}${image_ref_base}:${tag}"$'\n'
-          done
-          printf 'tags<<EOF\n%sEOF\n' "$tag_lines" >> "$GITHUB_OUTPUT"
 
-      - name: Build and push image
-        shell: bash
-        run: |
-          set -euo pipefail
-          image_names_csv=""
+          image_ref="${{ needs.metadata.outputs.registry }}/${{ needs.metadata.outputs.namespace }}/attune-web:${{ needs.metadata.outputs.image_tag }}-${{ matrix.arch }}"
+
           build_cmd=(
             docker buildx build
-            "${{ matrix.image.context }}"
-            --file "${{ matrix.image.dockerfile }}"
+            .
+            --platform "${{ matrix.platform }}"
+            --file docker/Dockerfile.web
           )
 
-          if [ -n "${{ matrix.image.target }}" ]; then
-            build_cmd+=(--target "${{ matrix.image.target }}")
-          fi
-
-          while IFS= read -r tag; do
-            if [ -n "$tag" ]; then
-              if [ -n "$image_names_csv" ]; then
-                image_names_csv="${image_names_csv},${tag}"
-              else
-                image_names_csv="${tag}"
-              fi
-
-              if [ "${{ needs.metadata.outputs.registry_plain_http }}" != "true" ]; then
-                build_cmd+=(--tag "$tag")
-              fi
-            fi
-          done <<< "${{ steps.tags.outputs.tags }}"
-
-          while IFS= read -r build_arg; do
-            [ -n "$build_arg" ] && build_cmd+=(--build-arg "$build_arg")
-          done <<< "${{ matrix.image.build_args }}"
-
           if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
-            build_cmd+=(--output "type=image,\"name=${image_names_csv}\",push=true,registry.insecure=true")
+            build_cmd+=(--output "type=image,\"name=${image_ref}\",push=true,registry.insecure=true")
           else
-            build_cmd+=(--push)
+            build_cmd+=(--tag "$image_ref" --push)
           fi
 
           "${build_cmd[@]}"
 
-  publish-chart:
-    name: Publish Helm Chart
-    runs-on: ubuntu-latest
+  publish-manifests:
+    name: Publish manifest ${{ matrix.repository }}
+    runs-on: build-amd64
     needs:
       - metadata
-      - publish-images
+      - publish-rust-images
+      - publish-web-images
+    if: |
+      github.event_name != 'workflow_dispatch' ||
+      (inputs.target_arch == 'all' && inputs.target_image == 'all')
+    strategy:
+      fail-fast: false
+      matrix:
+        repository:
+          - attune-api
+          - attune-executor
+          - attune-notifier
+          - attune-agent
+          - attune-web
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup Helm
-        uses: azure/setup-helm@v4
-
-      - name: Log in to Gitea OCI registry
+      - name: Configure OCI registry auth
         shell: bash
         env:
           REGISTRY_USERNAME: ${{ secrets.CONTAINER_REGISTRY_USERNAME }}
@@ -291,43 +593,48 @@ jobs:
           GITHUB_TOKEN_FALLBACK: ${{ secrets.GITHUB_TOKEN }}
         run: |
           set -euo pipefail
-          registry_username="${REGISTRY_USERNAME:-${{ github.actor }}}"
-          registry_password="${REGISTRY_PASSWORD:-${GITHUB_TOKEN_FALLBACK:-}}"
-          login_args=()
+          username="${REGISTRY_USERNAME:-${{ github.actor }}}"
+          password="${REGISTRY_PASSWORD:-${GITHUB_TOKEN_FALLBACK:-}}"
 
-          if [ -z "$registry_password" ]; then
+          if [ -z "$password" ]; then
             echo "Set CONTAINER_REGISTRY_PASSWORD or enable GITHUB_TOKEN package writes"
             exit 1
           fi
 
-          if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
-            login_args+=(--plain-http)
-          fi
+          mkdir -p "$HOME/.docker"
+          auth="$(printf '%s:%s' "$username" "$password" | base64 | tr -d '\n')"
 
-          printf '%s' "$registry_password" | helm registry login "${{ needs.metadata.outputs.registry }}" \
-            --username "$registry_username" \
-            "${login_args[@]}" \
-            --password-stdin
+          cat > "$HOME/.docker/config.json" <<EOF
+          {
+            "auths": {
+              "${{ needs.metadata.outputs.registry }}": {
+                "auth": "${auth}"
+              }
+            }
+          }
+          EOF
 
-      - name: Lint chart
+      - name: Publish manifest tags
+        shell: bash
         run: |
-          helm lint charts/attune
+          set -euo pipefail
 
-      - name: Package chart
-        run: |
-          mkdir -p dist
-          helm package charts/attune \
-            --destination dist \
-            --version "${{ needs.metadata.outputs.chart_version }}" \
-            --app-version "${{ needs.metadata.outputs.app_version }}"
-
-      - name: Push chart to OCI registry
-        run: |
+          image_base="${{ needs.metadata.outputs.registry }}/${{ needs.metadata.outputs.namespace }}/${{ matrix.repository }}"
           push_args=()
+
           if [ "${{ needs.metadata.outputs.registry_plain_http }}" = "true" ]; then
-            push_args+=(--plain-http)
+            push_args+=(--insecure)
           fi
 
-          helm push "dist/${CHART_NAME}-${{ needs.metadata.outputs.chart_version }}.tgz" \
-            "oci://${{ needs.metadata.outputs.registry }}/${{ needs.metadata.outputs.namespace }}/helm" \
-            "${push_args[@]}"
+          IFS=',' read -ra tags <<< "${{ needs.metadata.outputs.image_tags }}"
+          for tag in "${tags[@]}"; do
+            manifest_ref="${image_base}:${tag}"
+            amd64_ref="${image_base}:${{ needs.metadata.outputs.image_tag }}-amd64"
+            arm64_ref="${image_base}:${{ needs.metadata.outputs.image_tag }}-arm64"
+
+            docker manifest rm "$manifest_ref" >/dev/null 2>&1 || true
+            docker manifest create "$manifest_ref" "$amd64_ref" "$arm64_ref"
+            docker manifest annotate "$manifest_ref" "$amd64_ref" --os linux --arch amd64
+            docker manifest annotate "$manifest_ref" "$arm64_ref" --os linux --arch arm64
+            docker manifest push "${push_args[@]}" "$manifest_ref"
+          done

crates/common/src/models.rs

@@ -444,13 +444,55 @@ pub mod runtime {
 
         /// Optional environment variables to set during action execution.
         ///
-        /// Values support the same template variables as other fields:
+        /// Entries support the same template variables as other fields:
         /// `{pack_dir}`, `{env_dir}`, `{interpreter}`, `{manifest_path}`.
         ///
-        /// Example: `{"NODE_PATH": "{env_dir}/node_modules"}` ensures Node.js
-        /// can find packages installed in the isolated runtime environment.
+        /// The shorthand string form replaces the variable entirely:
+        /// `{"NODE_PATH": "{env_dir}/node_modules"}`
+        ///
+        /// The object form supports declarative merge semantics:
+        /// `{"PYTHONPATH": {"value": "{pack_dir}/lib", "operation": "prepend"}}`
         #[serde(default)]
-        pub env_vars: HashMap<String, String>,
+        pub env_vars: HashMap<String, RuntimeEnvVarConfig>,
+    }
+
+    /// Declarative configuration for a single runtime environment variable.
+    ///
+    /// The string form is shorthand for `{ "value": "...", "operation": "set" }`.
+    #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
+    #[serde(untagged)]
+    pub enum RuntimeEnvVarConfig {
+        Value(String),
+        Spec(RuntimeEnvVarSpec),
+    }
+
+    /// Full configuration for a runtime environment variable.
+    #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
+    pub struct RuntimeEnvVarSpec {
+        /// Template value to resolve for this variable.
+        pub value: String,
+
+        /// How the resolved value should be merged with any existing value.
+        #[serde(default)]
+        pub operation: RuntimeEnvVarOperation,
+
+        /// Separator used for prepend/append operations.
+        #[serde(default = "default_env_var_separator")]
+        pub separator: String,
+    }
+
+    /// Merge behavior for runtime-provided environment variables.
+    #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, Default)]
+    #[serde(rename_all = "snake_case")]
+    pub enum RuntimeEnvVarOperation {
+        #[default]
+        Set,
+        Prepend,
+        Append,
+    }
+
+    fn default_env_var_separator() -> String {
+        ":".to_string()
     }
 
     /// Controls how inline code is materialized before execution.
@@ -768,6 +810,43 @@ pub mod runtime {
         }
     }
 
+    impl RuntimeEnvVarConfig {
+        /// Resolve this environment variable against the current template
+        /// variables and any existing value already present in the process env.
+        pub fn resolve(
+            &self,
+            vars: &HashMap<&str, String>,
+            existing_value: Option<&str>,
+        ) -> String {
+            match self {
+                Self::Value(value) => RuntimeExecutionConfig::resolve_template(value, vars),
+                Self::Spec(spec) => {
+                    let resolved = RuntimeExecutionConfig::resolve_template(&spec.value, vars);
+                    match spec.operation {
+                        RuntimeEnvVarOperation::Set => resolved,
+                        RuntimeEnvVarOperation::Prepend => {
+                            join_env_var_values(&resolved, existing_value, &spec.separator)
+                        }
+                        RuntimeEnvVarOperation::Append => join_env_var_values(
+                            existing_value.unwrap_or_default(),
+                            Some(&resolved),
+                            &spec.separator,
+                        ),
+                    }
+                }
+            }
+        }
+    }
+
+    fn join_env_var_values(left: &str, right: Option<&str>, separator: &str) -> String {
+        match (left.is_empty(), right.unwrap_or_default().is_empty()) {
+            (true, true) => String::new(),
+            (false, true) => left.to_string(),
+            (true, false) => right.unwrap_or_default().to_string(),
+            (false, false) => format!("{}{}{}", left, separator, right.unwrap_or_default()),
+        }
+    }
+
     #[derive(Debug, Clone, Serialize, Deserialize, FromRow)]
     pub struct Runtime {
         pub id: Id,
@@ -1640,3 +1719,68 @@ pub mod entity_history {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::runtime::{
+        RuntimeEnvVarConfig, RuntimeEnvVarOperation, RuntimeEnvVarSpec, RuntimeExecutionConfig,
+    };
+    use serde_json::json;
+    use std::collections::HashMap;
+
+    #[test]
+    fn runtime_execution_config_env_vars_accept_string_and_object_forms() {
+        let config: RuntimeExecutionConfig = serde_json::from_value(json!({
+            "env_vars": {
+                "NODE_PATH": "{env_dir}/node_modules",
+                "PYTHONPATH": {
+                    "value": "{pack_dir}/lib",
+                    "operation": "prepend",
+                    "separator": ":"
+                }
+            }
+        }))
+        .expect("runtime execution config should deserialize");
+
+        assert!(matches!(
+            config.env_vars.get("NODE_PATH"),
+            Some(RuntimeEnvVarConfig::Value(value)) if value == "{env_dir}/node_modules"
+        ));
+
+        assert!(matches!(
+            config.env_vars.get("PYTHONPATH"),
+            Some(RuntimeEnvVarConfig::Spec(RuntimeEnvVarSpec {
+                value,
+                operation: RuntimeEnvVarOperation::Prepend,
+                separator,
+            })) if value == "{pack_dir}/lib" && separator == ":"
+        ));
+    }
+
+    #[test]
+    fn runtime_env_var_config_resolves_prepend_and_append_against_existing_values() {
+        let mut vars = HashMap::new();
+        vars.insert("pack_dir", "/packs/example".to_string());
+        vars.insert("env_dir", "/runtime_envs/example/python".to_string());
+
+        let prepend = RuntimeEnvVarConfig::Spec(RuntimeEnvVarSpec {
+            value: "{pack_dir}/lib".to_string(),
+            operation: RuntimeEnvVarOperation::Prepend,
+            separator: ":".to_string(),
+        });
+        assert_eq!(
+            prepend.resolve(&vars, Some("/already/set")),
+            "/packs/example/lib:/already/set"
+        );
+
+        let append = RuntimeEnvVarConfig::Spec(RuntimeEnvVarSpec {
+            value: "{env_dir}/node_modules".to_string(),
+            operation: RuntimeEnvVarOperation::Append,
+            separator: ":".to_string(),
+        });
+        assert_eq!(
+            append.resolve(&vars, Some("/base/modules")),
+            "/base/modules:/runtime_envs/example/python/node_modules"
+        );
+    }
+}

crates/sensor/src/sensor_manager.rs

@@ -27,6 +27,37 @@ use tracing::{debug, error, info, warn};
 
 use crate::api_client::ApiClient;
 
+fn existing_command_env(cmd: &Command, key: &str) -> Option<String> {
+    cmd.as_std()
+        .get_envs()
+        .find_map(|(env_key, value)| {
+            if env_key == key {
+                value.map(|value| value.to_string_lossy().into_owned())
+            } else {
+                None
+            }
+        })
+        .or_else(|| std::env::var(key).ok())
+}
+
+fn apply_runtime_env_vars(
+    cmd: &mut Command,
+    exec_config: &RuntimeExecutionConfig,
+    pack_dir: &std::path::Path,
+    env_dir: Option<&std::path::Path>,
+) {
+    if exec_config.env_vars.is_empty() {
+        return;
+    }
+
+    let vars = exec_config.build_template_vars_with_env(pack_dir, env_dir);
+    for (key, env_var_config) in &exec_config.env_vars {
+        let resolved = env_var_config.resolve(&vars, existing_command_env(cmd, key).as_deref());
+        debug!("Setting sensor runtime env var: {}={}", key, resolved);
+        cmd.env(key, resolved);
+    }
+}
+
 /// Sensor manager that coordinates all sensor instances
 #[derive(Clone)]
 pub struct SensorManager {
@@ -502,20 +533,7 @@ impl SensorManager {
             .env("ATTUNE_MQ_EXCHANGE", "attune.events")
             .env("ATTUNE_LOG_LEVEL", "info");
 
-        if !exec_config.env_vars.is_empty() {
-            let vars = exec_config.build_template_vars_with_env(&pack_dir, env_dir_opt);
-            for (key, value_template) in &exec_config.env_vars {
-                let resolved = attune_common::models::RuntimeExecutionConfig::resolve_template(
-                    value_template,
-                    &vars,
-                );
-                debug!(
-                    "Setting sensor runtime env var: {}={} (template: {})",
-                    key, resolved, value_template
-                );
-                cmd.env(key, resolved);
-            }
-        }
+        apply_runtime_env_vars(&mut cmd, &exec_config, &pack_dir, env_dir_opt);
 
         let mut child = cmd
             .stdin(Stdio::null())
@@ -904,6 +922,10 @@ pub struct SensorStatus {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use attune_common::models::runtime::{
+        RuntimeEnvVarConfig, RuntimeEnvVarOperation, RuntimeEnvVarSpec,
+    };
+    use std::collections::HashMap;
 
     #[test]
     fn test_sensor_status_default() {
@@ -913,4 +935,46 @@ mod tests {
         assert_eq!(status.failure_count, 0);
         assert!(status.last_poll.is_none());
     }
+
+    #[test]
+    fn test_apply_runtime_env_vars_prepends_to_existing_command_env() {
+        let mut env_vars = HashMap::new();
+        env_vars.insert(
+            "PYTHONPATH".to_string(),
+            RuntimeEnvVarConfig::Spec(RuntimeEnvVarSpec {
+                value: "{pack_dir}/lib".to_string(),
+                operation: RuntimeEnvVarOperation::Prepend,
+                separator: ":".to_string(),
+            }),
+        );
+
+        let exec_config = RuntimeExecutionConfig {
+            env_vars,
+            ..RuntimeExecutionConfig::default()
+        };
+
+        let mut cmd = Command::new("python3");
+        cmd.env("PYTHONPATH", "/existing/pythonpath");
+
+        apply_runtime_env_vars(
+            &mut cmd,
+            &exec_config,
+            std::path::Path::new("/packs/testpack"),
+            None,
+        );
+
+        let resolved = cmd
+            .as_std()
+            .get_envs()
+            .find_map(|(key, value)| {
+                if key == "PYTHONPATH" {
+                    value.map(|value| value.to_string_lossy().into_owned())
+                } else {
+                    None
+                }
+            })
+            .expect("PYTHONPATH should be set");
+
+        assert_eq!(resolved, "/packs/testpack/lib:/existing/pythonpath");
+    }
 }

crates/worker/src/runtime/process.rs

@@ -830,12 +830,9 @@ impl Runtime for ProcessRuntime {
         // resolved against the current pack/env directories.
         if !effective_config.env_vars.is_empty() {
             let vars = effective_config.build_template_vars_with_env(&pack_dir, env_dir_opt);
-            for (key, value_template) in &effective_config.env_vars {
-                let resolved = RuntimeExecutionConfig::resolve_template(value_template, &vars);
-                debug!(
-                    "Setting runtime env var: {}={} (template: {})",
-                    key, resolved, value_template
-                );
+            for (key, env_var_config) in &effective_config.env_vars {
+                let resolved = env_var_config.resolve(&vars, env.get(key).map(String::as_str));
+                debug!("Setting runtime env var: {}={}", key, resolved);
                 env.insert(key.clone(), resolved);
             }
         }
@@ -1062,7 +1059,8 @@ mod tests {
     use super::*;
     use attune_common::models::runtime::{
         DependencyConfig, EnvironmentConfig, InlineExecutionConfig, InlineExecutionStrategy,
-        InterpreterConfig, RuntimeExecutionConfig,
+        InterpreterConfig, RuntimeEnvVarConfig, RuntimeEnvVarOperation, RuntimeEnvVarSpec,
+        RuntimeExecutionConfig,
     };
     use attune_common::models::{OutputFormat, ParameterDelivery, ParameterFormat};
     use std::collections::HashMap;
@@ -1377,6 +1375,88 @@ mod tests {
         assert!(result.stdout.contains("hello from python process runtime"));
     }
 
+    #[tokio::test]
+    async fn test_execute_python_file_with_pack_lib_on_pythonpath() {
+        let temp_dir = TempDir::new().unwrap();
+        let packs_dir = temp_dir.path().join("packs");
+        let pack_dir = packs_dir.join("testpack");
+        let actions_dir = pack_dir.join("actions");
+        let lib_dir = pack_dir.join("lib");
+        std::fs::create_dir_all(&actions_dir).unwrap();
+        std::fs::create_dir_all(&lib_dir).unwrap();
+
+        std::fs::write(
+            lib_dir.join("helper.py"),
+            "def message():\n    return 'hello from pack lib'\n",
+        )
+        .unwrap();
+        std::fs::write(
+            actions_dir.join("hello.py"),
+            "import helper\nimport os\nprint(helper.message())\nprint(os.environ['PYTHONPATH'])\n",
+        )
+        .unwrap();
+
+        let mut env_vars = HashMap::new();
+        env_vars.insert(
+            "PYTHONPATH".to_string(),
+            RuntimeEnvVarConfig::Spec(RuntimeEnvVarSpec {
+                value: "{pack_dir}/lib".to_string(),
+                operation: RuntimeEnvVarOperation::Prepend,
+                separator: ":".to_string(),
+            }),
+        );
+
+        let runtime = ProcessRuntime::new(
+            "python".to_string(),
+            RuntimeExecutionConfig {
+                interpreter: InterpreterConfig {
+                    binary: "python3".to_string(),
+                    args: vec![],
+                    file_extension: Some(".py".to_string()),
+                },
+                inline_execution: InlineExecutionConfig::default(),
+                environment: None,
+                dependencies: None,
+                env_vars,
+            },
+            packs_dir,
+            temp_dir.path().join("runtime_envs"),
+        );
+
+        let mut env = HashMap::new();
+        env.insert("PYTHONPATH".to_string(), "/existing/pythonpath".to_string());
+
+        let context = ExecutionContext {
+            execution_id: 3,
+            action_ref: "testpack.hello".to_string(),
+            parameters: HashMap::new(),
+            env,
+            secrets: HashMap::new(),
+            timeout: Some(10),
+            working_dir: None,
+            entry_point: "hello.py".to_string(),
+            code: None,
+            code_path: Some(actions_dir.join("hello.py")),
+            runtime_name: Some("python".to_string()),
+            runtime_config_override: None,
+            runtime_env_dir_suffix: None,
+            selected_runtime_version: None,
+            max_stdout_bytes: 1024 * 1024,
+            max_stderr_bytes: 1024 * 1024,
+            parameter_delivery: ParameterDelivery::default(),
+            parameter_format: ParameterFormat::default(),
+            output_format: OutputFormat::default(),
+            cancel_token: None,
+        };
+
+        let result = runtime.execute(context).await.unwrap();
+        assert_eq!(result.exit_code, 0);
+        assert!(result.stdout.contains("hello from pack lib"));
+        assert!(result
+            .stdout
+            .contains(&format!("{}/lib:/existing/pythonpath", pack_dir.display())));
+    }
+
     #[tokio::test]
     async fn test_execute_inline_code() {
         let temp_dir = TempDir::new().unwrap();

docker/Dockerfile.agent-package

@@ -0,0 +1,6 @@
+FROM busybox:1.36
+
+COPY dist/attune-agent /usr/local/bin/attune-agent
+COPY dist/attune-sensor-agent /usr/local/bin/attune-sensor-agent
+
+ENTRYPOINT ["/usr/local/bin/attune-agent"]

docker/Dockerfile.runtime

@@ -0,0 +1,33 @@
+ARG DEBIAN_VERSION=bookworm
+
+FROM debian:${DEBIAN_VERSION}-slim AS runtime
+
+RUN apt-get update && apt-get install -y \
+    ca-certificates \
+    libssl3 \
+    curl \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m -u 1000 attune && \
+    mkdir -p /opt/attune/packs /opt/attune/logs /opt/attune/runtime_envs /opt/attune/config /opt/attune/artifacts /opt/attune/agent && \
+    chown -R attune:attune /opt/attune
+
+WORKDIR /opt/attune
+
+COPY dist/attune-service-binary /usr/local/bin/attune-service
+COPY migrations/ ./migrations/
+
+RUN chown -R attune:attune /opt/attune
+
+USER attune
+
+ENV RUST_LOG=info
+ENV ATTUNE_CONFIG=/opt/attune/config/config.yaml
+
+HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
+    CMD curl -f http://localhost:8080/health || exit 1
+
+EXPOSE 8080
+
+CMD ["/usr/local/bin/attune-service"]

packs/core/runtimes/README.md

@@ -12,6 +12,41 @@ Each runtime YAML file contains only the fields that are stored in the database:
 - `description` - Brief description of the runtime
 - `distributions` - Runtime verification and capability metadata (JSONB)
 - `installation` - Installation requirements and metadata (JSONB)
+- `execution_config` - Interpreter, environment, dependency, and execution-time env var metadata
+
+## `execution_config.env_vars`
+
+Runtime authors can declare execution-time environment variables in a purely declarative way.
+
+String values replace the variable entirely:
+
+```yaml
+env_vars:
+  NODE_PATH: "{env_dir}/node_modules"
+```
+
+Object values support merge semantics against an existing value already present in the execution environment:
+
+```yaml
+env_vars:
+  PYTHONPATH:
+    operation: prepend
+    value: "{pack_dir}/lib"
+    separator: ":"
+```
+
+Supported operations:
+
+- `set` - Replace the variable with the resolved value
+- `prepend` - Add the resolved value before the existing value
+- `append` - Add the resolved value after the existing value
+
+Supported template variables:
+
+- `{pack_dir}`
+- `{env_dir}`
+- `{interpreter}`
+- `{manifest_path}`
 
 ## Available Runtimes
 

packs/core/runtimes/python.yaml

@@ -54,6 +54,11 @@ execution_config:
       - install
       - "-r"
       - "{manifest_path}"
+  env_vars:
+    PYTHONPATH:
+      operation: prepend
+      value: "{pack_dir}/lib"
+      separator: ":"
 
 # Version-specific execution configurations.
 # Each entry describes how to invoke a particular Python version.
@@ -96,6 +101,11 @@ versions:
           - install
           - "-r"
           - "{manifest_path}"
+      env_vars:
+        PYTHONPATH:
+          operation: prepend
+          value: "{pack_dir}/lib"
+          separator: ":"
 
   - version: "3.12"
     is_default: true
@@ -133,6 +143,11 @@ versions:
           - install
           - "-r"
           - "{manifest_path}"
+      env_vars:
+        PYTHONPATH:
+          operation: prepend
+          value: "{pack_dir}/lib"
+          separator: ":"
 
   - version: "3.13"
     distributions:
@@ -169,3 +184,8 @@ versions:
           - install
           - "-r"
           - "{manifest_path}"
+      env_vars:
+        PYTHONPATH:
+          operation: prepend
+          value: "{pack_dir}/lib"
+          separator: ":"