fargate_aws_cli.md

How to Run a Fargate Task from AWS CLI

AWS_PROFILE=mplewis \
AWS_DEFAULT_REGION=us-west-1 \
aws ecs run-task \
  --launch-type FARGATE \
  --task-definition http-hello-world \
  --network-configuration '<CONFIG>'
  --overrides '<OVERRIDES>'

Network Configuration

• Required for Fargate because Fargate tasks are required to use awsvpc networking
• No newlines, remove spaces
• Pick any subnet
• Use a security group with full inbound/outbound access, or it'll create an implicit one which may not be able to access Docker Hub. Maybe not best practice, but it's easy
• Assigning a public IP might help get access to Docker Hub, idk
• Booleans are ENABLED or DISABLED

awsvpcConfiguration={
  subnets=[subnet-abcd1234],
  securityGroups=[sg-abcd1234abcd12345],
  assignPublicIp=ENABLED
}

Overrides

• Use this to add env vars on launch
• Max JSON size is 8192 bytes, so minify this
• "name" must match the name of the container alias inside your task, e.g. you could alias httpd:2.4 to web-server, so name would be web-server

{
  "containerOverrides": [
    {
      "name": "httpd",
      "environment": [
        { "name": "FOO", "value": "BAR" },
        { "name": "BAZ", "value": "QUUX" },
        {
          "name": "DB_URL",
          "value": "postgres://smeagol:hairball@example.com/catfood"
        }
      ]
    }
  ]
}