Add CloudWatch Logs integration cookbook

cr https://cr.amazon.com/r/4116208/

opsworks_cloudwatchlogs/attributes/default.rb

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+if node["platform"] == "amazon"
+  default["cloudwatchlogs"]["config_file"] = "/etc/awslogs/awslogs.conf" # Configures the logs for the agent to ship
+  default["cloudwatchlogs"]["home_dir"] = "/etc/awslogs" # Contains configuration files
+  default["cloudwatchlogs"]["state_file"] = "/var/lib/awslogs/agent-state" # See http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/QuickStartChef.html
+else
+  default["cloudwatchlogs"]["config_file"] = "/opt/aws/cloudwatch/cwlogs.cfg" # Configures the logs to ship, used by installation script
+  default["cloudwatchlogs"]["home_dir"] = "/var/awslogs" # Contains the awslogs package
+  default["cloudwatchlogs"]["state_file"] = "/var/awslogs/state/agent-state" # See http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/QuickStartChef.html
+end

opsworks_cloudwatchlogs/metadata.rb

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+name "opsworks_cloudwatchlogs"
+description "CloudWatch Logs Integration"
+maintainer "AWS OpsWorks"
+license "Apache 2.0"
+version "1.0.0"
+
+recipe "opsworks_cloudwatchlogs::default", "Uses install or uninstall recipe"
+recipe "opsworks_cloudwatchlogs::install", "Install CloudWatch Logs agent."
+recipe "opsworks_cloudwatchlogs::uninstall", "Remove CloudWatch Logs agent and config files."

opsworks_cloudwatchlogs/recipes/default.rb

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+if node["opsworks"]["cloud_watch_logs_configurations"].any?
+  include_recipe "opsworks_cloudwatchlogs::install"
+else
+  include_recipe "opsworks_cloudwatchlogs::uninstall"
+end

opsworks_cloudwatchlogs/recipes/install.rb

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+directory node["cloudwatchlogs"]["home_dir"] do
+  recursive true
+end
+
+template node["cloudwatchlogs"]["config_file"] do
+  source "awslogs.conf.erb"
+  variables({
+    :state_file => node["cloudwatchlogs"]["state_file"],
+    :cloudwatchlogs => node["opsworks"]["cloud_watch_logs_configurations"],
+    :hostname => node["opsworks"]["instance"]["hostname"]
+  })
+  owner "root"
+  group "root"
+  mode 0644
+end
+
+if platform?("amazon")
+  package "awslogs"
+
+  template "#{node['cloudwatchlogs']['home_dir']}/awscli.conf" do
+    source "awscli.conf.erb"
+    variables :region => node["opsworks"]["instance"]["region"]
+  end
+else
+  directory "/opt/aws/cloudwatch" do
+    recursive true
+  end
+
+  remote_file "/opt/aws/cloudwatch/awslogs-agent-setup.py" do
+    source "https://aws-cloudwatch.s3.amazonaws.com/downloads/latest/awslogs-agent-setup.py"
+    mode 0700
+    retries 3
+  end
+
+  package "python"
+
+  execute "Install CloudWatch Logs agent" do
+    command "/opt/aws/cloudwatch/awslogs-agent-setup.py -n -r '#{node['opsworks']['instance']['region']}' -c '#{node['cloudwatchlogs']['config_file']}'"
+    not_if { File.exists?(node["cloudwatchlogs"]["state_file"]) }
+  end
+end
+
+service "awslogs" do
+  supports :status => true, :restart => true
+  action [:enable, :start]
+end

opsworks_cloudwatchlogs/recipes/uninstall.rb

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+service "awslogs" do
+  action :stop
+end
+
+directory node["cloudwatchlogs"]["home_dir"] do
+  action :delete
+  recursive true
+end
+
+if platform?("amazon")
+  package "awslogs" do
+    action :remove
+  end
+else
+  directory "/opt/aws/cloudwatch" do
+    action :delete
+    recursive true
+  end
+
+  file "/etc/init.d/awslogs" do
+    action :delete
+  end
+end

opsworks_cloudwatchlogs/templates/default/awscli.conf.erb

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+[plugins]
+cwlogs = cwlogs
+[default]
+region = <%= @region %>

opsworks_cloudwatchlogs/templates/default/awslogs.conf.erb

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+[general]
+state_file = <%= @state_file %>
+
+<% @cloudwatchlogs.each do |layer_name, layer_logs| %>
+<% layer_logs.each do |log| %>
+[<%= layer_name %> <%= log["file"] %>]
+datetime_format = [%Y-%m-%d %H:%M:%S]
+log_group_name = <%= layer_name %>
+log_stream_name = <%= @hostname %> - <%= log["file"] %>
+initial_position = start_of_file
+file = <%= log["file"] %>
+
+<% end %>
+<% end %>