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Add CloudFront invalidation to CodePipeline build stage #4

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Add CloudFront invalidation to CodePipeline build stage #4

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Initial plan
Copilot Mar 14, 2026
f1db165
Add post_build phase with S3 sync and CloudFront invalidation
Copilot Mar 14, 2026
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30 changes: 30 additions & 0 deletions buildspec.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,36 @@ phases:
- echo "Building..."
- npm run build

post_build:
commands:
- echo "Deploying to S3 and invalidating CloudFront..."
# Sync built assets to S3. Set S3_BUCKET in the CodeBuild environment variables.
- |
if [ -n "$S3_BUCKET" ]; then
echo "Syncing dist/ to s3://$S3_BUCKET"
aws s3 sync dist/ s3://$S3_BUCKET --delete
else
echo "S3_BUCKET not set — skipping S3 sync."
fi
# Invalidate CloudFront so the CDN serves the latest assets immediately.
# Set DISTRIBUTION_ID in the CodeBuild environment variables.
# To invalidate multiple distributions, set EXTRA_DISTRIBUTION_IDS as a
# space-separated list (e.g. "E1EXAMPLE E2EXAMPLE").
- |
if [ -n "$DISTRIBUTION_ID" ]; then
echo "Creating CloudFront invalidation for distribution $DISTRIBUTION_ID"
aws cloudfront create-invalidation --distribution-id $DISTRIBUTION_ID --paths "/*"
else
echo "DISTRIBUTION_ID not set — skipping CloudFront invalidation."
fi
- |
if [ -n "$EXTRA_DISTRIBUTION_IDS" ]; then
for id in $EXTRA_DISTRIBUTION_IDS; do
echo "Creating CloudFront invalidation for extra distribution $id"
aws cloudfront create-invalidation --distribution-id $id --paths "/*"
done
fi

# Optional: cache node_modules for much faster rebuilds on subsequent runs
cache:
paths:
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