Your CI just finished, the tests passed, and now you need to trigger a downstream process. Maybe it’s publishing events, queuing jobs, or pinging a monitoring system. You could script those calls manually, or you could use AWS SQS and SNS inside GitHub Actions and let automation handle the baton pass.
AWS SQS is the reliable queue that never sleeps. SNS is its chatty cousin that broadcasts messages to many destinations. Together, they handle event-driven systems at scale. Add GitHub Actions, and you get a pipeline that builds, validates, and communicates all in one flow. No more cron jobs taped together with API keys.
Here’s how the integration works. Your workflow uses an IAM role with limited permissions to publish or consume messages from SQS or SNS. Instead of baking static credentials into GitHub, the Action exchanges a short-lived token via OpenID Connect (OIDC) with AWS. GitHub is the trusted identity provider, and AWS issues temporary credentials tied to that specific repository and workflow. When the job ends, the credentials evaporate. Security teams like that part.
The data flow is clean. Your build or deploy workflow writes a message to a queue or triggers a topic when it completes. Another system reads that event and runs its own pipeline. The connection between them isn’t a cURL call or webhook; it’s an AWS-native event path with proper IAM boundaries, audit trails, and retry logic.
Think of best practices here as guardrails, not hoops.
- Keep IAM roles scoped per repository, not per user.
- Rotate permissions in AWS with policy updates, not token dumps.
- Use message attributes to trace workflow IDs or build numbers.
- Treat SNS topics as public speakers, and SQS queues as quiet listeners. Each has a purpose.
If something fails, check CloudWatch for permission errors first. Nine times out of ten, it’s an IAM trust policy that doesn’t include the GitHub OIDC provider URL. Fix that and rerun. Your messages should flow like clockwork.