nanochat/.github/workflows/release-prod.yml
Manmohan Sharma 53f547fdef
feat(ci): CI/CD pipeline and Helm umbrella chart for samosaChaat (#8)
Adds GitHub Actions workflows for per-service CI (paths-filter gated),
dev image builds to ECR via OIDC, RC*-tag UAT promotion with image
re-tagging and Helm deploy, v*-tag blue/green prod release with smoke
test + ingress swap, and a nightly docker-compose integration suite.

Ships a Helm umbrella chart (dev/uat/prod values) with Deployments,
ClusterIP Services, ALB Ingress (samosachaat.art + grafana host), HPAs
for chat-api/inference in prod, PDBs, ConfigMap/Secret wiring, and an
alembic db-migrate Helm hook job.

Wires commitlint + husky for Conventional Commits at the repo root.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-16 12:09:43 -07:00

120 lines
3.9 KiB
YAML

name: Release to Prod (Blue/Green)
on:
push:
tags:
- 'v*'
concurrency:
group: release-prod
cancel-in-progress: false
permissions:
id-token: write
contents: read
env:
AWS_REGION: ${{ vars.AWS_REGION || 'us-east-1' }}
PROD_CLUSTER: samosachaat-prod
PROD_NAMESPACE: samosachaat-prod
SERVICES: frontend auth chat-api inference
jobs:
release:
name: Blue/Green release ${{ github.ref_name }}
runs-on: ubuntu-latest
environment: production
steps:
- uses: actions/checkout@v4
- name: Resolve tag
id: tag
run: echo "name=${GITHUB_REF_NAME}" >> "$GITHUB_OUTPUT"
- name: Configure AWS credentials (OIDC)
uses: aws-actions/configure-aws-credentials@v4
with:
role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
aws-region: ${{ env.AWS_REGION }}
- name: Login to Amazon ECR
id: ecr-login
uses: aws-actions/amazon-ecr-login@v2
- name: Promote uat images to prod tag
env:
REGISTRY: ${{ steps.ecr-login.outputs.registry }}
DST_REF: prod-${{ steps.tag.outputs.name }}
run: |
set -euo pipefail
for svc in $SERVICES; do
repo="samosachaat/${svc}"
src=$(aws ecr describe-images \
--repository-name "$repo" \
--query 'sort_by(imageDetails,&imagePushedAt)[?starts_with(imageTags[0], `uat-`)]|[-1].imageTags[0]' \
--output text)
if [ -z "$src" ] || [ "$src" = "None" ]; then
echo "No uat-* image found for $repo" >&2
exit 1
fi
echo "Promoting $repo:$src -> $repo:$DST_REF"
manifest=$(aws ecr batch-get-image \
--repository-name "$repo" \
--image-ids imageTag="$src" \
--query 'images[0].imageManifest' \
--output text)
aws ecr put-image \
--repository-name "$repo" \
--image-tag "$DST_REF" \
--image-manifest "$manifest" >/dev/null
done
- name: Update kubeconfig
run: |
aws eks update-kubeconfig \
--name "$PROD_CLUSTER" \
--region "$AWS_REGION"
- name: Set up Helm
uses: azure/setup-helm@v4
with:
version: 'v3.16.2'
- name: Deploy green slot
run: |
helm upgrade --install samosachaat-green helm/samosachaat \
-f helm/samosachaat/values-prod.yaml \
--set global.imageTag=prod-${{ steps.tag.outputs.name }} \
--set deployment.slot=green \
--set ingress.enabled=false \
--namespace "$PROD_NAMESPACE" \
--create-namespace \
--wait --timeout 15m
- name: Smoke test green
run: |
set -euo pipefail
kubectl -n "$PROD_NAMESPACE" rollout status deploy/frontend-green --timeout=5m
kubectl -n "$PROD_NAMESPACE" run smoke-${{ github.run_id }} \
--rm -i --restart=Never \
--image=curlimages/curl:8.10.1 \
--command -- curl -fsS --max-time 10 \
http://frontend-green.${PROD_NAMESPACE}.svc.cluster.local:3000/health
- name: Swap ingress → green
run: |
helm upgrade --install samosachaat helm/samosachaat \
-f helm/samosachaat/values-prod.yaml \
--set global.imageTag=prod-${{ steps.tag.outputs.name }} \
--set deployment.slot=green \
--set ingress.enabled=true \
--namespace "$PROD_NAMESPACE" \
--wait --timeout 10m
- name: Retain blue as rollback standby
run: |
echo "Blue slot retained for rollback. To roll back:"
echo " helm upgrade samosachaat helm/samosachaat \\"
echo " -f helm/samosachaat/values-prod.yaml \\"
echo " --set deployment.slot=blue --namespace $PROD_NAMESPACE"