【AWS】AutoScalingで作成したEC2にCloudWatchAgentをインストールしてメトリクスを集約

sudo yum install amazon-cloudwatch-agent

cd /opt/aws/amazon-cloudwatch-agent/bin/
sudo touch config.json
sudo vi config.json

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

{
"agent": {
"metrics_collection_interval": 60,
"run_as_user": "root"
},
"logs": {
"logs_collected": {
"files": {
"collect_list": [
{
"file_path": "/var/log/messages",
"log_group_name": "messages",
"log_stream_name": "{instance_id}"
}
]
}
}
},
"metrics": {
"append_dimensions": {
"AutoScalingGroupName": "${aws:AutoScalingGroupName}",
"ImageId": "${aws:ImageId}",
"InstanceId": "${aws:InstanceId}",
"InstanceType": "${aws:InstanceType}"
},
"aggregation_dimensions": [
[
"AutoScalingGroupName"
]
],
"metrics_collected": {
"disk": {
"measurement": [
"used_percent"
],
"metrics_collection_interval": 60,
"resources": [
"*"
]
},
"mem": {
"measurement": [
"mem_used_percent"
],
"metrics_collection_interval": 60
},
"statsd": {
"metrics_aggregation_interval": 60,
"metrics_collection_interval": 10,
"service_address": ":8125"
},
"cpu": {
"measurement": [
"cpu_usage_user"
],
"metrics_collection_interval": 60,
"resources": [
"*"
],
"totalcpu": false
}
}
}
}

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

sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -m ec2 -a status

sudo reboot

sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -m ec2 -a status
$ sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -m ec2 -a status
{
"status": "running",
"starttime": "2021-03-20T10:33:48+0000",
"version": "1.247345.35"
}
$

ログ確認コマンドの実行結果

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

2021/03/20 09:23:32 I! Config has been translated into TOML /opt/aws/amazon-cloudwatch-agent/etc /amazon-cloudwatch-agent.toml
2021/03/20 09:23:32 Reading json config file path: /opt/aws/amazon-cloudwatch-agent/etc/amazon-c loudwatch-agent.json ...
2021/03/20 09:23:32 Reading json config file path: /opt/aws/amazon-cloudwatch-agent/etc/amazon-c loudwatch-agent.d/file_config.json ...
2021/03/20 09:23:32 I! Detected runAsUser: root
2021/03/20 09:23:32 I! Change ownership to root:root
2021-03-20T09:23:32Z I! Starting AmazonCloudWatchAgent 1.247345.35
2021-03-20T09:23:32Z I! Loaded inputs: disk logfile mem statsd cpu
2021-03-20T09:23:32Z I! Loaded aggregators:
2021-03-20T09:23:32Z I! Loaded processors: ec2tagger
2021-03-20T09:23:32Z I! Loaded outputs: cloudwatch cloudwatchlogs
2021-03-20T09:23:32Z I! Tags enabled: host=ip-172-16-1-123.ap-northeast-1.compute.internal
2021-03-20T09:23:32Z I! [agent] Config: Interval:1m0s, Quiet:false, Hostname:"ip-172-16-1-123.ap -northeast-1.compute.internal", Flush Interval:1s
2021-03-20T09:23:32Z I! [logagent] starting
2021-03-20T09:23:32Z I! [logagent] found plugin cloudwatchlogs is a log backend
2021-03-20T09:23:32Z I! [logagent] found plugin logfile is a log collection
2021-03-20T09:23:32Z I! [processors.ec2tagger] ec2tagger: EC2 tagger has started initialization.
2021-03-20T09:23:32Z I! cloudwatch: get unique roll up list [[AutoScalingGroupName]]
2021-03-20T09:23:32Z I! Started the statsd service on :8125
2021-03-20T09:23:32Z I! cloudwatch: publish with ForceFlushInterval: 1m0s, Publish Jitter: 37s
2021-03-20T09:23:32Z I! Statsd listener listening on: [::]:8125
2021-03-20T09:23:33Z I! [logagent] piping log from messages/i-01614e0a272a99480(/var/log/message s) to cloudwatchlogs
2021-03-20T09:25:32Z W! [processors.ec2tagger] ec2tagger: Unable to describe ec2 tags for initia l retrieval: RequestError: send request failed
caused by: Post https://ec2.ap-northeast-1.amazonaws.com/: dial tcp 54.239.96.159:443: i/o timeo

com.amazonaws.ap-northeast-1.monitoring
com.amazonaws.ap-northeast-1.ec2
com.amazonaws.ap-northeast-1.logs

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