Add ARM64 architecture support to integration tests

This commit adds ARM64 runner support to the CI pipeline to ensure
integration tests run on both amd64 and arm64 architectures, as ARM64
images are widely used in production.

Changes:
- Add matrix strategy to integration job with separate runners for
  amd64 (ubuntu-24.04) and arm64 (ubuntu-24.04-arm)
- Dynamically set CORTEX_IMAGE based on matrix.arch variable
- Add matrix strategy to integration-configs-db job for both architectures
- Add appropriate timeouts to accommodate ARM64 test execution times
- Set fail-fast: false to ensure all architecture tests complete

All existing amd64 tests remain unchanged, and ARM64 tests use the
same test suites with architecture-appropriate Docker images.

Fixes #6897

Author: thc1006

.github/workflows/test-build-deploy.yml

@@ -152,19 +152,60 @@ jobs:
 
   integration:
     needs: build
-    runs-on: ubuntu-24.04
+    runs-on: ${{ matrix.runner }}
+    timeout-minutes: 50
     strategy:
       fail-fast: false
       matrix:
-        tags:
-          - requires_docker
-          - integration_alertmanager
-          - integration_backward_compatibility
-          - integration_memberlist
-          - integration_querier
-          - integration_ruler
-          - integration_query_fuzz
-          - integration_remote_write_v2
+        include:
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: requires_docker
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: integration_alertmanager
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: integration_backward_compatibility
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: integration_memberlist
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: integration_querier
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: integration_ruler
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: integration_query_fuzz
+          - runner: ubuntu-24.04
+            arch: amd64
+            tags: integration_remote_write_v2
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: requires_docker
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: integration_alertmanager
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: integration_backward_compatibility
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: integration_memberlist
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: integration_querier
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: integration_ruler
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: integration_query_fuzz
+          - runner: ubuntu-24.04-arm
+            arch: arm64
+            tags: integration_remote_write_v2
     steps:
       - name: Upgrade golang
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
@@ -220,19 +261,29 @@ jobs:
         env:
           TEST_TAGS: ${{ matrix.tags }}
       - name: Integration Tests
+        timeout-minutes: 45
         run: |
           export CORTEX_IMAGE_PREFIX="${IMAGE_PREFIX:-quay.io/cortexproject/}"
           export IMAGE_TAG=$(make image-tag)
-          export CORTEX_IMAGE="${CORTEX_IMAGE_PREFIX}cortex:$IMAGE_TAG-amd64"
+          export CORTEX_IMAGE="${CORTEX_IMAGE_PREFIX}cortex:${IMAGE_TAG}-${{ matrix.arch }}"
           export CORTEX_CHECKOUT_DIR="/go/src/github.com/cortexproject/cortex"
-          echo "Running integration tests with image: $CORTEX_IMAGE"
+          echo "Running integration tests on ${{ matrix.arch }} with image: ${CORTEX_IMAGE}"
           go test -tags=slicelabels,integration,${{ matrix.tags }} -timeout 2400s -v -count=1 ./integration/...
         env:
           IMAGE_PREFIX: ${{ secrets.IMAGE_PREFIX }}
 
   integration-configs-db:
     needs: build
-    runs-on: ubuntu-24.04
+    runs-on: ${{ matrix.runner }}
+    timeout-minutes: 20
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - runner: ubuntu-24.04
+            arch: amd64
+          - runner: ubuntu-24.04-arm
+            arch: arm64
     steps:
       - name: Checkout Repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -245,10 +296,12 @@ jobs:
       - name: Extract Docker Images Archive
         run: tar -xvf images.tar -C /
       - name: Run Integration Configs Tests
+        timeout-minutes: 15
         # Github Actions does not support TTY in their default runners yet
         run: |
           touch build-image/.uptodate
           MIGRATIONS_DIR=$(pwd)/cmd/cortex/migrations
+          echo "Running configs integration tests on ${{ matrix.arch }}"
           make BUILD_IMAGE=quay.io/cortexproject/build-image:master-59491e9aae TTY='' configs-integration-test
 
   deploy_website: