aws elastic beanstalk - memory monitor

memory_monitor.config

# https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/mon-scripts.html
# .ebextensions/memory_monitor.config
container_commands:
  00install:
    command: "sudo yum install -y perl-Switch perl-DateTime perl-Sys-Syslog perl-LWP-Protocol-https perl-Digest-SHA.x86_64"
    ignoreErrors: false
  01download:
    command: "curl https://aws-cloudwatch.s3.amazonaws.com/downloads/CloudWatchMonitoringScripts-1.2.2.zip -O"
    ignoreErrors: true
  02extract:
    command: "unzip CloudWatchMonitoringScripts-1.2.2.zip"
    ignoreErrors: true
  03rmzip:
    command: "rm CloudWatchMonitoringScripts-1.2.2.zip"
    ignoreErrors: true
  04cdinto:
    command: "mv aws-scripts-mon/ /home/ec2-user"
    ignoreErrors: true
  05cron:
    command: "crontab -l | grep -q 'mon-put-instance-data.pl' || crontab -l | { cat; echo '* * * * * /home/ec2-user/aws-scripts-mon/mon-put-instance-data.pl --mem-util --mem-used --mem-avail'; } | crontab -"
    ignoreErrors: false