I'm relatively new to AWS and deployment in general, and I'm facing a bit of an issue. I have an EC2 micro instance where I run three Docker containers. However, whenever I try to build my React frontend, it hangs about half the time, forcing me to restart the instance. The odd thing is that the other containers build fine. Is this a matter of needing a more powerful instance, or could I be missing something common when deploying this kind of project?
5 Answers
I've faced similar problems in the past. If you're on a T2 instance, it may run out of CPU credits after the initial burst, causing hangs. Switching to a T3 instance can help because they manage resources differently.
Try to avoid building your images directly on the EC2 instance. It’s often better to use an ephemeral environment like GitHub Actions or AWS CodeBuild to handle builds. Once the images are created, you can then run them on your EC2 instance.
Your npm build might be using up all the available memory on the instance, which is leading to the CPU being maxed out. Micro instances often lack sufficient resources for CPU-heavy tasks.
Make sure you're also allocating enough swap space on your EC2 instance. When building React apps, the CPU and memory usage can spike. Setting up a swap file can ease the resource crunch during builds.
It really depends on the type of instance you're using. If you're on a micro instance, it might simply be too small for the task you're trying to perform. Considering switching to a t3a instance could help, or perhaps looking into AWS ECS if you haven’t tried that yet.
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