AWS ECS ElasticSearch Task Definition Template

ecs_elasticsearch_task_definition.json

{
  "ipcMode": null,
  "executionRoleArn": null,
  "containerDefinitions": [
    {
      "dnsSearchDomains": null,
      "logConfiguration": {
        "logDriver": "awslogs",
        "options": {
          "awslogs-group": "/aws/ecs",
          "awslogs-region": "us-east-1",
          "awslogs-stream-prefix": "elasticsearch"
        }
      },
      "entryPoint": null,
      "portMappings": [
        {
          "hostPort": 9200,
          "protocol": "tcp",
          "containerPort": 9200
        },
        {
          "hostPort": 9300,
          "protocol": "tcp",
          "containerPort": 9300
        }
      ],
      "command": null,
      "linuxParameters": null,
      "cpu": 512,
      "environment": [
        {
          "name": "ES_JAVA_OPTS",
          "value": "-Xms2g -Xmx2g"
        }
      ],
      "ulimits": [
        {
          "name": "nofile",
          "softLimit": 65536,
          "hardLimit": 65536
        }
      ],
      "dnsServers": null,
      "mountPoints": [
        {
          "readOnly": null,
          "containerPath": "/usr/share/elasticsearch/data",
          "sourceVolume": "esdata"
        }
      ],
      "workingDirectory": null,
      "secrets": null,
      "dockerSecurityOptions": null,
      "memory": 4000,
      "memoryReservation": 2000,
      "volumesFrom": [],
      "image": "<img-url>",
      "disableNetworking": null,
      "interactive": null,
      "healthCheck": null,
      "essential": true,
      "links": null,
      "hostname": null,
      "extraHosts": null,
      "pseudoTerminal": null,
      "user": null,
      "readonlyRootFilesystem": null,
      "dockerLabels": null,
      "systemControls": null,
      "privileged": false,
      "name": "elasticsearch"
    }
  ],
  "memory": null,
  "taskRoleArn": "<task-role-arn>",
  "family": "elasticsearch",
  "pidMode": null,
  "requiresCompatibilities": [
    "EC2"
  ],
  "networkMode": "bridge",
  "cpu": null,
  "volumes": [
    {
      "name": "esdata",
      "host": {
        "sourcePath": "/usr/share/elasticsearch/data"
      },
      "dockerVolumeConfiguration": null
    }
  ],
  "placementConstraints": []
}

Increase mmap count in your EC2 instance using below command:
sudo sysctl -w vm.max_map_count=262144

Not setting above will cause bootstrap checks to fail.

To set this value permanently, update the vm.max_map_count setting in /etc/sysctl.conf. To verify after rebooting, run sysctl vm.max_map_count