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ci: add preview smoke test for frontend PRs #7192

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ed309f9
ci: Add Vercel preview smoke test for frontend PRs
talissoncosta Apr 9, 2026
b2abd51
chore: Trigger Vercel deployment for smoke test validation
talissoncosta Apr 9, 2026
948edc5
ci: Allow smoke test to run on draft PRs
talissoncosta Apr 9, 2026
d10f1e5
chore: Trigger Vercel rebuild for smoke test validation
talissoncosta Apr 9, 2026
b52e839
chore: revert throwaway trigger changes
talissoncosta Apr 10, 2026
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70 changes: 70 additions & 0 deletions .github/workflows/frontend-pull-request.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@ on:

permissions:
contents: read
deployments: read

jobs:
unit-tests:
Expand All @@ -34,3 +35,72 @@ jobs:

- name: Run unit tests
run: npm run test:unit -- --passWithNoTests

smoke-test:
name: Vercel Preview Smoke Test
runs-on: ubuntu-latest
steps:
- name: Wait for Vercel deployments and smoke test
env:
GH_TOKEN: ${{ github.token }}
SHA: ${{ github.event.pull_request.head.sha }}
REPO: ${{ github.repository }}
run: |
ENVIRONMENTS=(
"Preview – flagsmith-frontend-preview"
"Preview – flagsmith-frontend-staging"
)

for ENV_NAME in "${ENVIRONMENTS[@]}"; do
echo "⏳ Waiting for '$ENV_NAME' deployment..."
URL=""
for i in $(seq 1 60); do
# Find the deployment for this commit and environment
DEPLOY_ID=$(gh api "repos/$REPO/deployments?sha=$SHA&environment=$(printf '%s' "$ENV_NAME" | jq -sRr @uri)&per_page=1" --jq '.[0].id // empty')

if [ -n "$DEPLOY_ID" ]; then
STATE=$(gh api "repos/$REPO/deployments/$DEPLOY_ID/statuses?per_page=1" --jq '.[0].state // empty')
if [ "$STATE" = "success" ]; then
URL=$(gh api "repos/$REPO/deployments/$DEPLOY_ID/statuses?per_page=1" --jq '.[0].environment_url')
echo "✅ '$ENV_NAME' deployed at: $URL"
break
elif [ "$STATE" = "failure" ] || [ "$STATE" = "error" ]; then
echo "❌ '$ENV_NAME' deployment failed with state: $STATE"
exit 1
fi
fi
sleep 10
done

if [ -z "$URL" ]; then
echo "⚠️ Timed out waiting for '$ENV_NAME' — skipping"
continue
fi

# Smoke test the deployment
echo "🔍 Testing $URL/health ..."
STATUS=$(curl -s -o /dev/null -w '%{http_code}' "$URL/health")
if [ "$STATUS" != "200" ]; then
echo "❌ /health returned $STATUS"
exit 1
fi

echo "🔍 Testing $URL/config/project-overrides ..."
STATUS=$(curl -s -o /dev/null -w '%{http_code}' "$URL/config/project-overrides")
if [ "$STATUS" != "200" ]; then
echo "❌ /config/project-overrides returned $STATUS"
exit 1
fi

echo "🔍 Testing $URL/ ..."
STATUS=$(curl -s -o /dev/null -w '%{http_code}' "$URL/")
if [ "$STATUS" != "200" ]; then
echo "❌ / returned $STATUS (this is the index page served by the Express server)"
exit 1
fi

echo "✅ All smoke tests passed for '$ENV_NAME'"
echo ""
done

echo "🎉 All Vercel preview deployments are healthy"
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