CloudWatch Agent for Mem, Disk and App logs

You can use cloudwatch agent to collect the Mem and disk useage for the EC2 and alos the apps running logs.

1. Set role

2. Install

wget https://s3.amazonaws.com/amazoncloudwatch-agent/ubuntu/amd64/latest/amazon-cloudwatch-agent.deb

--for Ubantu
sudo dpkg -i -E ./amazon-cloudwatch-agent.deb

3. Config file

sudo vi /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.json

4. Start

sudo systemctl restart amazon-cloudwatch-agent

Check log

tail -f /opt/aws/amazon-cloudwatch-agent/logs/amazon-cloudwatch-agent.log

or other method

sudo amazon-cloudwatch-agent-ctl -a stop

amazon-cloudwatch-agent-ctl -a status

sudo amazon-cloudwatch-agent-ctl -a start

Sample of config file

{
        "agent": {
                "metrics_collection_interval": 60,
                "run_as_user": "cwagent"
        },
        "metrics": {
                "append_dimensions": {
                                 "InstanceId": "${aws:InstanceId}"
                },
                "metrics_collected": {
                        "disk": {
                                "measurement": [
                                        "used_percent"
                                ],
                                "metrics_collection_interval": 300,
                                "resources": [
                                        "/"
                                ]
                        },
                        "mem": {
                                "measurement": [
                                        "mem_used_percent"
                                ],
                                "metrics_collection_interval": 300
                        }
                }
        },
        "logs": {
            "logs_collected": {
              "files": {
                "collect_list": [
                  {
                      "file_path": "/home/ubuntu/log_sync.log",
                      "log_group_name":  "/apps/webservers/crontab/log",
                      "log_stream_name": "{ip_address}_{instance_id}",
                      "timestamp_format": "%d/%b/%Y:%H:%M:%S %z",
                      "timezone": "Local"
                  }
                ]
              }
            }
          }
}

This work is licensed under a CC A-S 4.0 International License.