AWS Unified CloudWatch Agent and Beanstalk

Solution 1:

You'll need to install it by providing a script in .ebextensions and following the steps outlined in the command line installation instructions for the unified agent: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/install-CloudWatch-Agent-commandline-fleet.html

    files:
      "/opt/elasticbeanstalk/hooks/appdeploy/post/install_cw_unified_agent.sh":
        mode: "000755"
        owner: root
        group: root
        content: |
          # download agent
          wget https://s3.us-east-1.amazonaws.com/amazoncloudwatch-agent-us-east-1/amazon_linux/amd64/latest/amazon-cloudwatch-agent.rpm

          # install CW agent
          sudo rpm -U ./amazon-cloudwatch-agent.rpm

          # run the agent
          sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -a fetch-config -m ec2 -c file:/opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-config.json -s

You'll need a configuration file as well which you can find in the docs here: https://docs.aws.amazon.com/en_pv/AmazonCloudWatch/latest/monitoring/CloudWatch-Agent-Configuration-File-Details.html

Here's the sample config from the docs:

    {
      "agent": {
        "metrics_collection_interval": 10,
        "logfile": "/opt/aws/amazon-cloudwatch-agent/logs/amazon-cloudwatch-agent.log"
      },
      "metrics": {
        "metrics_collected": {
          "cpu": {
            "resources": [
              "*"
            ],
            "measurement": [
              {"name": "cpu_usage_idle", "rename": "CPU_USAGE_IDLE", "unit": "Percent"},
              {"name": "cpu_usage_nice", "unit": "Percent"},
              "cpu_usage_guest"
            ],
            "totalcpu": false,
            "metrics_collection_interval": 10,
            "append_dimensions": {
              "customized_dimension_key_1": "customized_dimension_value_1",
              "customized_dimension_key_2": "customized_dimension_value_2"
            }
          },
          "disk": {
            "resources": [
              "/",
              "/tmp"
            ],
            "measurement": [
              {"name": "free", "rename": "DISK_FREE", "unit": "Gigabytes"},
              "total",
              "used"
            ],
             "ignore_file_system_types": [
              "sysfs", "devtmpfs"
            ],
            "metrics_collection_interval": 60,
            "append_dimensions": {
              "customized_dimension_key_3": "customized_dimension_value_3",
              "customized_dimension_key_4": "customized_dimension_value_4"
            }
          },
          "diskio": {
            "resources": [
              "*"
            ],
            "measurement": [
              "reads",
              "writes",
              "read_time",
              "write_time",
              "io_time"
            ],
            "metrics_collection_interval": 60
          },
          "swap": {
            "measurement": [
              "swap_used",
              "swap_free",
              "swap_used_percent"
            ]
          },
          "mem": {
            "measurement": [
              "mem_used",
              "mem_cached",
              "mem_total"
            ],
            "metrics_collection_interval": 1
          },
          "net": {
            "resources": [
              "eth0"
            ],
            "measurement": [
              "bytes_sent",
              "bytes_recv",
              "drop_in",
              "drop_out"
            ]
          },
          "netstat": {
            "measurement": [
              "tcp_established",
              "tcp_syn_sent",
              "tcp_close"
            ],
            "metrics_collection_interval": 60
          },
          "processes": {
            "measurement": [
              "running",
              "sleeping",
              "dead"
            ]
          }
        },
        "append_dimensions": {
          "ImageId": "${aws:ImageId}",
          "InstanceId": "${aws:InstanceId}",
          "InstanceType": "${aws:InstanceType}",
          "AutoScalingGroupName": "${aws:AutoScalingGroupName}"
        },
        "aggregation_dimensions" : [["ImageId"], ["InstanceId", "InstanceType"], ["d1"],[]],
        "force_flush_interval" : 30
      },
      "logs": {
        "logs_collected": {
          "files": {
            "collect_list": [
              {
                "file_path": "/opt/aws/amazon-cloudwatch-agent/logs/amazon-cloudwatch-agent.log",
                "log_group_name": "amazon-cloudwatch-agent.log",
                "log_stream_name": "amazon-cloudwatch-agent.log",
                "timezone": "UTC"
              },
              {
                "file_path": "/opt/aws/amazon-cloudwatch-agent/logs/test.log",
                "log_group_name": "test.log",
                "log_stream_name": "test.log",
                "timezone": "Local"
              }
            ]
          }
        },
        "log_stream_name": "my_log_stream_name",
        "force_flush_interval" : 15
      }
    }