From b75752b828411193f9263cb9572000f7700dd0c4 Mon Sep 17 00:00:00 2001
From: -z <11802769+Aloento@users.noreply.github.com>
Date: Wed, 23 Sep 2026 02:05:14 +0200
Subject: [PATCH] chore: migrate CI from Zuul to GitHub Actions

The eco2 jobs fail before reaching the code: the rust pre-run in zuul-infra references a missing ensure-rust role, and the builder node is unreachable. Build the image on pull requests and push change_<pr>_latest on merge instead, then drop zuul.yaml.
---
 .github/workflows/docker-build.yaml | 57 +++++++++++++++++++++++++++++
 zuul.yaml                           | 33 -----------------
 2 files changed, 57 insertions(+), 33 deletions(-)
 create mode 100644 .github/workflows/docker-build.yaml
 delete mode 100644 zuul.yaml

diff --git a/.github/workflows/docker-build.yaml b/.github/workflows/docker-build.yaml
new file mode 100644
index 0000000..007653d
--- /dev/null
+++ b/.github/workflows/docker-build.yaml
@@ -0,0 +1,57 @@
+name: Docker Image Build
+
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - closed
+
+env:
+  REGISTRY: quay.io
+  IMAGE: quay.io/stackmon/metrics-processor
+
+jobs:
+  build:
+    if: github.event.pull_request.merged != true
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build image
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          target: metrics-processor
+          push: false
+
+  push_if_merged:
+    # The tag is pinned by stackmon-config/config.yaml, keep change_<pr>_latest.
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Container Registry
+        uses: docker/login-action@v4
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          target: metrics-processor
+          push: true
+          tags: ${{ env.IMAGE }}:change_${{ github.event.pull_request.number }}_latest
diff --git a/zuul.yaml b/zuul.yaml
deleted file mode 100644
index 2ed98d3..0000000
--- a/zuul.yaml
+++ /dev/null
@@ -1,33 +0,0 @@
-- job:
-    name: cloudmon-metrics-processor-build-image
-    parent: otc-build-container-image
-    description: Build cloudmon-metrics container image
-    provides: cloudmon-metrics-container-image
-    vars: &cloudmon-metrics_image_vars
-      container_images:
-        - context: .
-          registry: quay.io
-          repository: stackmon/metrics-processor
-          target: metrics-processor
-          tags:
-            &imagetag "{{ zuul.tag is defined | ternary([zuul.get('tag', '').split('.')[0], '.'.join(zuul.get('tag', '').split('.')[:2]), zuul.get('tag', '')], ['latest']) }}"
-
-- job:
-    name: cloudmon-metrics-processor-upload-image
-    parent: stackmon-upload-container-images
-    provides: cloudmon-metrics-processor-container-image
-    vars: *cloudmon-metrics_image_vars
-
-- project:
-    merge-mode: squash-merge
-    default-branch: main
-    check:
-      jobs:
-        - rust-build
-        - rust-test
-        - cloudmon-metrics-processor-build-image
-    gate:
-      jobs:
-        - rust-build
-        - rust-test
-        - cloudmon-metrics-processor-upload-image