Meteorlog is a tool to manage CloudWatch Logs. It defines the state of CloudWatch Logs using DSL, and updates CloudWatch Logs according to DSL.
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README.md

Meteorlog

Meteorlog is a tool to manage CloudWatch Logs.

It defines the state of CloudWatch Logs using DSL, and updates CloudWatch Logs according to DSL.

Gem Version

Installation

Add this line to your application's Gemfile:

gem 'meteorlog'

And then execute:

$ bundle

Or install it yourself as:

$ gem install meteorlog

Usage

export AWS_ACCESS_KEY_ID='...'
export AWS_SECRET_ACCESS_KEY='...'
export AWS_REGION='us-east-1'
meteorlog -e -o Logsfile  # export CloudWatch Logs
vi Logsfile
meteorlog -a --dry-run
meteorlog -a               # apply `Logsfile` to CloudWatch Logs

Help

Usage: meteorlog [options]
    -p, --profile PROFILE_NAME
    -k, --access-key ACCESS_KEY
    -s, --secret-key SECRET_KEY
    -r, --region REGION
    -a, --apply
    -f, --file FILE
        --dry-run
    -e, --export
    -o, --output FILE
        --no-color
        --debug

Logsfile example

require 'other/logsfile'

log_group "/var/log/messages" do
  log_stream "my-stream"

  # Please write the following if you do not want to manage log_streams
  #any_log_streams

  metric_filter "MyAppAccessCount" do
    metric :name=>"EventCount", :namespace=>"YourNamespace", :value=>"1"
  end

  metric_filter "MyAppAccessCount2" do
    # see http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/FilterAndPatternSyntax.html
    filter_pattern '[ip, user, username, timestamp, request, status_code, bytes > 1000]'
    metric :name=>"EventCount2", :namespace=>"YourNamespace2", :value=>"2"
  end
end

log_group "/var/log/maillog" do
  log_stream "my-stream2"

  metric_filter "MyAppAccessCount" do
    filter_pattern '[..., status_code, bytes]'
    metric :name=>"EventCount3", :namespace=>"YourNamespace", :value=>"1"
  end

  metric_filter "MyAppAccessCount2" do
    filter_pattern '[ip, user, username, timestamp, request = *html*, status_code = 4*, bytes]'
    metric :name=>"EventCount4", :namespace=>"YourNamespace2", :value=>"2"
  end
end

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