TMDEv4 changes for service lens

[sparrc]

Summary

Merge feature branch of TMDEv4 changes for service lens

This is a combination of two PRs: #2586 and #2620

This change adds metadata to the Task metadata endpoint v4

Below is a diff of the added information when querying the /task endpoint (${ECS_CONTAINER_METADATA_URI_V4}/task). There will be a follow-up PR to add ContainerArn, which will need to be provided by the ECS backend.

{
  "Cluster": "usw2",
  "TaskARN": "arn:aws:ecs:us-west-2:NNNN:task/NNNN/NNNN",
  "Family": "NNNN",
  "Revision": "4",
  "DesiredStatus": "RUNNING",
  "KnownStatus": "RUNNING",
  "Limits": {
    "CPU": 0.25,
    "Memory": 256
  },
  "PullStartedAt": "2020-08-21T18:18:05.845370929Z",
  "PullStoppedAt": "2020-08-21T18:18:06.561130985Z",
  "AvailabilityZone": "us-west-2a",
+ "LaunchType": "EC2",
  "Containers": [
    {
      "DockerId": "NNNN",
      "Name": "main",
      "DockerName": "ecs-NNNN-NNNN",
      "Image": "NNNN.dkr.ecr.us-west-2.amazonaws.com/NNNN:NNNN",
      "ImageID": "sha256:NNNN",
      "Labels": {
        "com.amazonaws.ecs.cluster": "NNNN",
        "com.amazonaws.ecs.container-name": "main",
        "com.amazonaws.ecs.task-arn": "arn:aws:ecs:us-west-2:NNNN:task/NNNN/NNNN",
        "com.amazonaws.ecs.task-definition-family": "NNNN",
        "com.amazonaws.ecs.task-definition-version": "4"
      },
      "DesiredStatus": "RUNNING",
      "KnownStatus": "RUNNING",
      "Limits": {
        "CPU": 256,
        "Memory": 0
      },
      "CreatedAt": "2020-08-21T18:18:06.576462775Z",
      "StartedAt": "2020-08-21T18:18:07.397380758Z",
      "Type": "NORMAL",
+     "ContainerARN": "arn:aws:ecs:us-west-2:NNNN:task/NNNN/NNNN",
+     "LogDriver": "awslogs",
+     "LogOptions": {
+       "awslogs-group": "NNNN-cluster",
+       "awslogs-region": "us-west-2",
+       "awslogs-stream": "auto-ecs/main/NNNN"
+     },
      "Networks": [
        {
          "NetworkMode": "host",
          "IPv4Addresses": [
            ""
          ]
        }
      ]
    }
  ]
}

Description for the changelog

ECS metadata for AWS service lens and x-ray

Licensing

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[fierlion]

looks good