【ハンズオン3-a】CloudWatchでログ監視をする【9:40】

Apacheのインストール手順はこちらのハンズオン1の手順を参照願います。

[HttpAccessLog]
file = /var/log/httpd/access_log
log_group_name = HttpAccessLog
log_stream_name = {instance_id}
datetime_format = %b %d %H:%M:%S

[HttpErrorLog]
file = /var/log/httpd/error_log
log_group_name = HttpErrorLog
log_stream_name = {instance_id}
datetime_format = %b %d %H:%M:%S

■なお、以下をEC2のユーザーデータに設定することでEC2作成時に自動でCloudWatch Logsにログ送信が可能となります。

#!/bin/bash
yum -y update
yum -y install httpd php
systemctl enable httpd.service
systemctl start httpd.service

mkdir /var/awslogs
mkdir /var/awslogs/state

yum -y install awslogs

cat > /etc/awslogs/awslogs.conf <<EOF
[general]
state_file = /var/awslogs/state/agent-state

[HttpAccessLog]
file = /var/log/httpd/access_log
log_group_name = HttpAccessLog
log_stream_name = {instance_id}
datetime_format = %b %d %H:%M:%S

[HttpErrorLog]
file = /var/log/httpd/error_log
log_group_name = HttpErrorLog
log_stream_name = {instance_id}
datetime_format = %b %d %H:%M:%S
EOF

REGION=$(curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone | sed -n 's/.$//p')
sed -i "s/us-east-1/$REGION/g" /etc/awslogs/awscli.conf

systemctl enable awslogsd
systemctl start awslogsd