amazon-linux-extras on EB for Amazon Linux 2023

Question

I have set up an .ebextensions file in a Java deployment on EB to add additional metrics to cloud watch. Just recently tried deploying this to Amazon Linux 2023 with Corretto 17. It's failing to install `sudo amazon-linux-extras install collectd -y`

Is this no longer necessary on 2023? I don't recall what was needed in the extras package - perhaps already included?

```

files:
  "/home/ec2-user/amazon-cloudwatch-agent.json":
    mode: "000755"
    owner: root
    group: root
    content: |
      {
        "agent": {
          "metrics_collection_interval": 60
        },
        "metrics": {
          "append_dimensions": {
            "InstanceId": "${aws:InstanceId}"
          },
          "metrics_collected": {
            "mem": {
              "measurement": [
                "mem_total",
                "mem_free",
                "mem_used",
                "mem_used_percent",
                "mem_available",
                "mem_available_percent"
              ],
              "append_dimensions": {
                "AWSEBEnvironmentName": "__EB_ENV__"
              }
            },
            "cpu": {
              "measurement": [
                "cpu_time_active",
                "cpu_time_nice",
                "cpu_time_steal",
                "cpu_usage_active",
                "cpu_usage_idle",
                "cpu_usage_iowait"
              ],
              "append_dimensions": {
                "AWSEBEnvironmentName": "__EB_ENV__"
              }
            },
            "disk": {
              "measurement": [
                "disk_free",
                "disk_total",
                "disk_used",
                "disk_used_percent"
              ],
              "append_dimensions": {
                "AWSEBEnvironmentName": "__EB_ENV__"
              }
            }
          }
        }
      }
container_commands:
  01_install_cloudwatch_agent:
    command: |
      sudo yum install amazon-cloudwatch-agent -y
  02_install_extras:
    command: |
      sudo amazon-linux-extras install collectd -y
  03_prepare_cloudwatch_agent_config:
    command: |
      EB_ENV="$(/opt/elasticbeanstalk/bin/get-config container -k environment_name)"
      sed -i "s/__EB_ENV__/$EB_ENV/g" /home/ec2-user/amazon-cloudwatch-agent.json
  04_run_cloudwatch_agent:
    command: |
      amazon-cloudwatch-agent-ctl -a append-config -m ec2 -c file:/home/ec2-user/amazon-cloudwatch-agent.json -s

```

Answer

Hello.

Unfortunately, Amazon Linux 2023 does not include amazon-linux-extras.  
https://aws.amazon.com/linux/amazon-linux-2023/faqs/?nc1=h_ls  
> Q: Does AL2023 have Amazon-Linux-Extras like AL2?
> 
> A: No, AL2023 does not have extras. For higher-level software packages like language runtimes, we will use the quarterly release where we will add major/minor updates to packages as separate namespaced packages in addition to the default package provided in the repository. For example, default Python version in Amazon Linux 2023 may be 3.8, but we will add Python 3.9 (python39) as a separate namespaced package whenever it is made available. These additional packages will closely follow their upstream release cadence and support model and their support policies can be accessed by the package manager for compliance and security use cases. Default packages will continue to be supported throughout the life of AL2023.

So, please execute the following command to install collectd.  
``` bash
sudo yum install collectd
```

amazon-linux-extras on EB for Amazon Linux 2023

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