Cloud Watch Monitoring Scripts using Chef. Monitors Memory and Disk usage.

cloud-watch.rb

### Monitor Memory and Disk utilization with CloudWatch
### Assume that the instance have a IAMRole with CloudWath PutMetricData
### http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/mon-scripts-perl.html

%w{ unzip libwww-perl libcrypt-ssleay-perl }.each do |pkg|
  package pkg do
    action :install
  end
end

remote_file "/opt/CloudWatchMonitoringScripts-v1.1.0.zip" do
  source "http://ec2-downloads.s3.amazonaws.com/cloudwatch-samples/CloudWatchMonitoringScripts-v1.1.0.zip"
  action :create_if_missing
  notifies :run, "bash[unzip-cloud-watch]", :immediately
  notifies :create, "cron[cloud-watch-memory]", :immediately
  notifies :create, "cron[cloud-watch-disk]", :immediately
end

bash "unzip-cloud-watch" do
  code <<-EOF
    cd /opt
    unzip CloudWatchMonitoringScripts-v1.1.0.zip
  EOF
  action :nothing
end

cron "cloud-watch-memory" do
  minute  "*/1"
  user    "root"
  shell   "/bin/bash"
  command "/opt/aws-scripts-mon/mon-put-instance-data.pl --mem-util --mem-used --mem-avail --memory-units=megabytes --from-cron"
  action :nothing
end

cron "cloud-watch-disk" do
  minute  "*/5"
  user    "root"
  shell   "/bin/bash"
  command "/opt/aws-scripts-mon/mon-put-instance-data.pl --disk-space-used --disk-space-avail --disk-space-util --disk-path=/ --disk-space-units=gigabytes --from-cron"
  action :nothing
end