AWS Systems Manager Incident Manager: Your AWS Lifeline During Crises

Meni Tasa
6 min readSep 11, 2024

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Picture this: your cloud-based application is humming along smoothly, and then — BAM! — something goes wrong. An unplanned outage or slowdown hits, and suddenly, your users are stuck, and your team scrambles to fix the issue. This is where AWS Systems Manager Incident Manager steps in, acting as your dedicated incident response partner, designed to help you tackle disruptions efficiently and with minimal downtime.

Why Incident Manager Matters

If your entire infrastructure is hosted in AWS, using AWS Systems Manager Incident Manager is a no-brainer. This service is tightly integrated with AWS tools like CloudWatch, EventBridge, and CloudTrail, providing you with a cohesive and streamlined way to handle incidents. When something goes wrong, Incident Manager is ready to jump in, automating much of the grunt work so your team can focus on higher-level decision-making.

And that’s the beauty of it — it’s not just a reactive tool. It helps you prepare for the worst, respond swiftly when things go wrong, and learn from every incident to prevent future issues.

How It All Works: The Incident Lifecycle

The incident lifecycle in Incident Manager AWS

So, let’s say you’re running a video streaming service on AWS. It’s peak viewing time, and suddenly your servers start to struggle under the load. Incident Manager kicks into action, guiding you through a series of phases that make sure you recover as quickly as possible.

  1. Alerting and Engagement: Before users even start complaining, Incident Manager can detect when your system’s metrics fall out of line — thanks to its deep integration with CloudWatch and EventBridge. It automatically triggers an alert and notifies the right people on your team.
  2. Triage: Now that your team knows there’s an issue, it’s time to assess how bad the situation is. Incident Manager provides a dashboard with detailed metrics and timelines, giving you a clear picture of what’s going on. Are all users affected, or just a subset? This helps your team prioritize and focus on the most critical tasks first.
  3. Mitigation: Here’s where Incident Manager really shines. Instead of manually handling every detail, your team can rely on runbooks — predefined, automated tasks that take care of repetitive or complex processes. These runbooks can automatically restart instances, re-route traffic, or apply quick fixes while your team concentrates on the bigger picture.
  4. Post-Incident Analysis: Once the crisis is over and your service is back up, Incident Manager doesn’t just stop. It helps you dig into what happened, why it happened, and how you can prevent it from happening again. This is where you can refine your runbooks, improve your response plans, and make your system even more resilient.

Response Plans: Your Playbook for Every Incident

If you’ve ever tried to solve a crisis without a plan, you know how chaotic that can be. Response plans in Incident Manager are like a playbook that tells everyone involved exactly what to do when an incident strikes.

Imagine you’re dealing with a database failure that’s disrupting your application. A response plan will automatically tell your team who needs to respond, what actions need to be taken, and when to escalate the issue if it’s not resolved quickly. These plans ensure everyone’s on the same page, so there’s no wasted time figuring out who’s responsible for what.

And if things get worse? No problem. Incident Manager has escalation paths built into response plans, ensuring that higher-level engineers or managers are brought into the loop when necessary. This is essential for ensuring that incidents get resolved as quickly as possible, with the right people on the job.

Automation: Let Runbooks Do the Heavy Lifting

When incidents happen, manual intervention slows you down. That’s why Incident Manager’s runbooks are such a game-changer. These automated scripts handle routine tasks like restarting services or adjusting configurations, freeing up your team to focus on diagnosing and fixing the root cause of the problem.

Imagine that you’ve set up an AWS EC2 instance to handle high traffic, and it suddenly goes down during peak hours. With runbooks in place, Incident Manager can automatically spin up a new instance, apply the necessary configurations, and get everything running again — all without your team lifting a finger.

By automating these routine tasks, you not only speed up your response time but also minimize human error, which is crucial during stressful incidents.

Collaboration in Real-Time

Communication breakdowns are a major source of delays during incidents. People are working on different pieces of the puzzle, and it’s easy to lose track of what’s happening. That’s where Incident Manager’s integration with AWS Chatbot and tools like Slack or Microsoft Teams comes in handy.

Imagine you’ve got your team scattered across different locations, and everyone is working to fix the issue. With Incident Manager, you can set up a dedicated chat channel where real-time updates appear as responders work on the incident. This keeps everyone aligned and aware of what’s happening. Need to escalate? No problem — just do it from the chat interface, keeping everything flowing smoothly.

It’s like having a digital command center where everyone stays on the same page, making collaboration during a crisis much more efficient.

The Importance of Post-Incident Analysis

Once an incident is resolved, it’s tempting to move on and forget about it. But here’s the thing: post-incident analysis is where the real learning happens. It’s your chance to figure out what went wrong, how it could’ve been handled better, and what changes you can make to avoid similar problems in the future.

Incident Manager provides a full timeline of events, from the initial alert to the resolution, giving your team a detailed record of what happened. You can look at which steps were effective and which ones weren’t, allowing you to refine your response plans and improve runbooks for next time.

Maybe the incident revealed a blind spot in your alerting system, or maybe your escalation plan wasn’t fast enough. Post-incident analysis helps you identify these gaps and address them before they become bigger problems down the road.

Getting Started with Incident Manager

If all this sounds like something your team could use, getting started is easy. The Get Prepared wizard in Incident Manager guides you through the setup process. You’ll define key components like replication sets, contacts, and escalation plans to make sure your incident management system is ready to go from day one.

Once set up, Incident Manager can automatically create incidents based on metrics from CloudWatch or events from EventBridge. You don’t have to babysit the system — it’s designed to handle incidents from detection to resolution with minimal manual intervention.

Wrapping It Up

AWS Systems Manager Incident Manager is like having a skilled and reliable partner in your corner when things go wrong. Whether your entire infrastructure is running on AWS or just parts of it, Incident Manager helps you prepare for the unexpected, respond swiftly, and learn from every incident to prevent future disruptions.

It’s about giving you the tools to automate routine tasks, streamline communication, and ensure your team is always ready to handle any challenge. And the best part? It’s designed to grow and adapt with your needs, whether you’re running a small startup or a sprawling enterprise.

So, the next time your AWS infrastructure faces an unexpected hurdle, you won’t be scrambling — you’ll be prepared, and ready to restore normalcy with the confidence that Incident Manager has your back.

Key Takeaways:

  • AWS Systems Manager Incident Manager helps detect and resolve incidents automatically, reducing downtime and improving efficiency.
  • It integrates seamlessly with other AWS services, providing real-time monitoring and alerts via CloudWatch and EventBridge.
  • Response plans and runbooks automate repetitive tasks, ensuring a faster, error-free response.
  • Collaboration tools like Slack and AWS Chatbot keep your team aligned during high-pressure incidents.
  • Post-incident analysis helps your team learn from each incident, improving future response strategies and preventing recurrence.

To learn more, I recommend reading the office documentation of AWS: https://docs.aws.amazon.com/incident-manager/latest/userguide/what-is-incident-manager.html

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Meni Tasa
Meni Tasa

Written by Meni Tasa

Head of IT & Security | 📚Blogger | 🔒CISO | 🚀CCNP | ☁️Cloud Architect

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