What is ECR (Elastic Container Registry)?
AWS's fully managed container image registry service.
Amazon Elastic Container Registry (ECR) is AWS's managed Docker container image registry. ECR integrates natively with ECS, EKS, and CodePipeline. It supports private repositories with IAM-based access control, image vulnerability scanning via ECR Enhanced Scanning (powered by Inspector), image lifecycle policies to auto-delete old tags, and cross-region replication. ECR Public provides a free public registry at gallery.ecr.aws.
More Cloud Terms
EKS (Elastic Kubernetes Service)
AWS's managed Kubernetes service that runs the K8s control plane for you.
Fargate
AWS serverless compute engine for containers — no node management required.
IAM (Identity and Access Management)
AWS service for managing user identities and permissions for cloud resources.
IRSA (IAM Roles for Service Accounts)
EKS feature that allows Kubernetes pods to assume AWS IAM roles without node-level credentials.
Spot Instance
Unused cloud capacity offered at up to 90% discount that can be reclaimed with 2-minute notice.
VPC (Virtual Private Cloud)
A logically isolated network in the cloud where you launch your cloud resources.
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