If you want to run batch workloads on AWS without losing your mind, welcome. This guide walks through AWS Batch essentials with a sprinkle of sarcasm and zero hand holding. You will learn how to define jobs, wire up queues, pick a compute environment and actually submit work that finishes without a temper tantrum.
This is the blueprint for each run. Think container image, command, vCPU and memory. Also specify a retry strategy and the IAM role that lets the job fetch secrets or write to S3.
Queues are the traffic cops. Attach one or more compute environments to each queue and give each an order value for priority. When you need different runtimes or priorities, use multiple queues so routing is predictable and people stop bothering you.
Pick the compute type that matches your workflow and patience level.
Serverless container runs with no host management, great for straightforward container workloads and for people who dislike patching. You give up some low level control but gain sanity.
Full control of the host. Useful for custom AMIs GPU instances or spot based cost savings. If you need kernel tweaks or special drivers this is the option to choose.
Use EKS when you already run Kubernetes in production and want to reuse the same tooling and workflows. AWS Batch can hand off job placement to a Kubernetes cluster when that fits your architecture.
Submit jobs from the AWS Console the CLI or any supported SDK. Provide a job name the job definition and the target queue. You can pass parameters and container overrides for per run variations. Always capture the job id that AWS returns so you can track status and logs.
Send container logs to CloudWatch for troubleshooting. Configure retry attempts and evaluate exit codes so jobs recover gracefully. Use the compute environment autoscaling settings so capacity follows demand and your cloud bill does not explode.
There you go. You can now define jobs set up queues pick a compute environment and submit workloads to AWS Batch without invoking rituals or sacrificing a test cluster. Tweak settings to match your workload and budget and enjoy the small victory of a job that finishes correctly on the first try.
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