consul-postgres-ha stage 4 — Postgres HA across dstack-TEE workers

.github/workflows/consul-postgres-ha-publish.yml

@@ -0,0 +1,137 @@
+name: Publish consul-postgres-ha images
+
+# Builds and publishes the four container images the consul-postgres-ha
+# example needs (mesh-sidecar, patroni, webdemo, signaling). On push
+# to main, images are tagged with the commit SHA *and* `latest`,
+# pushed to GHCR, and attested with Sigstore-backed GitHub Build
+# Provenance so consumers can verify "this image came from this
+# commit of this repo" without us managing any keys. PRs build to
+# verify but do not push or attest.
+#
+# Why one workflow for all four: the example needs them in lockstep —
+# bumping one but leaving the rest stale leads to mixed-version
+# clusters that are hard to reason about. One workflow means one set
+# of tags moves together.
+#
+# `mesh-sidecar` is the consolidated platform-plumbing image (formerly
+# four images: bootstrap-secrets, mesh-conn, the legacy keepalive, and
+# the old envoy-only sidecar). Its build context is the parent
+# consul-postgres-ha/ directory so its Dockerfile can pull the Go
+# sources from sibling subdirs. The other three images build from
+# their own subdirs.
+#
+# Verifying a published image (consumer side):
+#
+#   gh attestation verify \
+#     oci://ghcr.io/dstack-tee/dstack-examples/consul-postgres-ha-mesh-sidecar:latest \
+#     --repo Dstack-TEE/dstack-examples
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'consul-postgres-ha/bootstrap-secrets/**'
+      - 'consul-postgres-ha/mesh-conn/**'
+      - 'consul-postgres-ha/mesh-sidecar/**'
+      - 'consul-postgres-ha/patroni/**'
+      - 'consul-postgres-ha/webdemo/**'
+      - 'consul-postgres-ha/signaling/**'
+      - '.github/workflows/consul-postgres-ha-publish.yml'
+  pull_request:
+    paths:
+      - 'consul-postgres-ha/bootstrap-secrets/**'
+      - 'consul-postgres-ha/mesh-conn/**'
+      - 'consul-postgres-ha/mesh-sidecar/**'
+      - 'consul-postgres-ha/patroni/**'
+      - 'consul-postgres-ha/webdemo/**'
+      - 'consul-postgres-ha/signaling/**'
+      - '.github/workflows/consul-postgres-ha-publish.yml'
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      # id-token + attestations are required for Sigstore-backed
+      # GitHub Build Provenance via actions/attest-build-provenance.
+      id-token: write
+      attestations: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # `mesh-sidecar` builds with the parent dir as context so
+          # its Dockerfile can pull bootstrap-secrets/ and mesh-conn/
+          # Go sources from siblings.
+          - name: mesh-sidecar
+            context: consul-postgres-ha
+            dockerfile: consul-postgres-ha/mesh-sidecar/Dockerfile
+          - name: patroni
+            context: consul-postgres-ha/patroni
+          - name: webdemo
+            context: consul-postgres-ha/webdemo
+          - name: signaling
+            context: consul-postgres-ha/signaling
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GHCR
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract image metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          # Image namespace lives one level under the repo so all four
+          # images sit side-by-side: ghcr.io/<owner>/<repo>/consul-postgres-ha-<name>
+          images: ${{ env.REGISTRY }}/${{ github.repository }}/consul-postgres-ha-${{ matrix.name }}
+          tags: |
+            type=sha,format=long
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=pr
+
+      - name: Build and push
+        id: push
+        uses: docker/build-push-action@v6
+        with:
+          context: ${{ matrix.context }}
+          # Most images use the default Dockerfile in the context.
+          # `mesh-sidecar` overrides this to point at
+          # mesh-sidecar/Dockerfile while keeping the parent context.
+          file: ${{ matrix.dockerfile || format('{0}/Dockerfile', matrix.context) }}
+          platforms: linux/amd64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha,scope=consul-postgres-ha-${{ matrix.name }}
+          cache-to: type=gha,scope=consul-postgres-ha-${{ matrix.name }},mode=max
+
+      # Sigstore-backed build provenance. Binds {image digest, repo,
+      # workflow, commit SHA, runner identity} into an attestation
+      # signed with a short-lived Sigstore cert obtained via this
+      # workflow's GitHub OIDC token — no keys we have to rotate. The
+      # attestation is uploaded to GitHub *and* (via push-to-registry)
+      # written next to the image on GHCR so `gh attestation verify
+      # oci://...` and `cosign verify-attestation` both work.
+      - name: Attest build provenance
+        if: github.event_name != 'pull_request'
+        uses: actions/attest-build-provenance@v2
+        with:
+          subject-name: ${{ env.REGISTRY }}/${{ github.repository }}/consul-postgres-ha-${{ matrix.name }}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: true

.gitignore

@@ -1 +1,18 @@
-*~
+
+*~
+.claude/
+
+# consul-postgres-ha — compiled Go binaries (build artifacts)
+consul-postgres-ha/.local/
+consul-postgres-ha/bootstrap-secrets/bootstrap-secrets
+consul-postgres-ha/mesh-conn/mesh-conn
+consul-postgres-ha/quic-on-ice/quic-on-ice
+consul-postgres-ha/signaling/signaling
+consul-postgres-ha/signaling/icetest
+consul-postgres-ha/webdemo/webdemo
+
+# consul-postgres-ha — local terraform state (per-deploy, not for git)
+consul-postgres-ha/cluster-example/.terraform/
+consul-postgres-ha/cluster-example/.terraform.lock.hcl
+consul-postgres-ha/cluster-example/terraform.tfstate*
+consul-postgres-ha/cluster-example/terraform.tfvars