Class: Synapse::EC2Watcher

Inherits:
BaseWatcher show all
Defined in:
lib/synapse/service_watcher/ec2tag.rb

Constant Summary

Constants inherited from BaseWatcher

BaseWatcher::LEADER_WARN_INTERVAL

Instance Attribute Summary collapse

Attributes inherited from BaseWatcher

#haproxy, #name

Instance Method Summary collapse

Methods inherited from BaseWatcher

#backends, #initialize, #ping?, #stop

Methods included from Logging

configure_logger_for, #log, logger_for

Constructor Details

This class inherits a constructor from Synapse::BaseWatcher

Instance Attribute Details

#check_intervalObject (readonly)

Returns the value of attribute check_interval



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# File 'lib/synapse/service_watcher/ec2tag.rb', line 7

def check_interval
  @check_interval
end

Instance Method Details

#startObject



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# File 'lib/synapse/service_watcher/ec2tag.rb', line 9

def start
  region = @discovery['aws_region'] || ENV['AWS_REGION']
  log.info "Connecting to EC2 region: #{region}"

  @ec2 = AWS::EC2.new(
    region:            region,
    access_key_id:     @discovery['aws_access_key_id']     || ENV['AWS_ACCESS_KEY_ID'],
    secret_access_key: @discovery['aws_secret_access_key'] || ENV['AWS_SECRET_ACCESS_KEY'] )

  @check_interval = @discovery['check_interval'] || 15.0

  log.info "synapse: ec2tag watcher looking for instances " +
    "tagged with #{@discovery['tag_name']}=#{@discovery['tag_value']}"

  @watcher = Thread.new { watch }
end