Amazon ECS Agent

• https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-agent-install.html

/etc/ecs/ecs.config
/var/log/ecs/
/var/log/ecs/ecs-agent.log
/var/lib/ecs/data/agent.db

sudo amazon-linux-extras install -y ecs; sudo systemctl enable --now ecs

sudo service ecs start
/etc/ecs/ecs.config

systemctl start ecs

level=critical time=2023-04-18T10:35:41Z msg="The current instance type does not match the registered instance type. Please revert the instance type change, or alternatively launch a new instance: ClientException: Container instance type changes are not supported. Container instance 1212232432534534536 was previously registered as c5a.2xlarge." module=agent.go

See also

• Amazon ECS, Service, Tasks (Task overview), capacity providers, Cluster Auto Scaling (CAS), aws ecs, ecs-cli, ~/.ecs/config, AWS Copilot, AWS Fargate, AWS CloudWatch Container Insights, /etc/ecs/ecs.config, Security group (SG), container agent, task definition, Amazon ECS events, best practices, Amazon ECS Exec Checker, Amazon ECS Agent, Service Connect, AWSServiceRoleForECS, Terraform ECS, AWS ECS Rolling deployments