Sha256: 695c640dfa389b11b8929e57cfe6d463b35ffbd9c6b725237d305febbd9f0a19
Contents?: true
Size: 1.9 KB
Versions: 12
Compression:
Stored size: 1.9 KB
Contents
module SimpleDeploy
class AWS
class InstanceReader
def initialize
@config = SimpleDeploy.config
end
def list_stack_instances(stack_name)
asg_id = auto_scaling_group_id(stack_name)
return [] unless asg_id
asg_instances = list_instances asg_id
return [] unless asg_instances.any?
describe_instances asg_instances
end
private
def list_instances(asg_id)
@asg ||= Fog::AWS::AutoScaling.new :aws_access_key_id => @config.access_key,
:aws_secret_access_key => @config.secret_key,
:region => @config.region
body = @asg.describe_auto_scaling_groups('AutoScalingGroupNames' => [asg_id]).body
result = body['DescribeAutoScalingGroupsResult']['AutoScalingGroups'].last
return [] unless result
result['Instances'].map { |info| info['InstanceId'] }
end
def describe_instances(instances)
@ec2 ||= Fog::Compute::AWS.new :aws_access_key_id => @config.access_key,
:aws_secret_access_key => @config.secret_key,
:region => @config.region
@ec2.describe_instances('instance-state-name' => 'running',
'instance-id' => instances).body['reservationSet']
end
def cloud_formation
@cloud_formation ||= AWS::CloudFormation.new
end
def auto_scaling_group_id(stack_name)
cf_stack_resources = cloud_formation.stack_resources stack_name
parse_cf_stack_resources cf_stack_resources
end
def parse_cf_stack_resources(cf_stack_resources)
asgs = cf_stack_resources.select do |r|
r['ResourceType'] == 'AWS::AutoScaling::AutoScalingGroup'
end
asgs.any? ? asgs.first['PhysicalResourceId'] : false
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems