Class: Ufo::Rollback

Inherits:
Base
  • Object
show all
Defined in:
lib/ufo/rollback.rb

Instance Method Summary collapse

Methods inherited from Base

#full_service, #info, #initialize, #no_service_message, #switch_current

Methods included from Stack::Helper

#adjust_stack_name, #cfn, #find_stack, #status

Methods included from Util

#default_cluster, #display_params, #execute, #pretty_time, #settings, #task_definition_arns, #user_params

Methods included from AwsService

#cloudformation, #cloudwatchlogs, #ec2, #ecr, #ecs, #elb

Constructor Details

This class inherits a constructor from Ufo::Base

Instance Method Details

#deploy ⇒ Object 



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# File 'lib/ufo/rollback.rb', line 3

def deploy
  task_definition = normalize_version(@options[:version])
  puts "Rolling back ECS service to task definition #{task_definition}"
  ship = Ship.new(@service, @options.merge(task_definition: task_definition))
  ship.deploy
end

#find_sha(task_definition, sha) ⇒ Object 



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# File 'lib/ufo/rollback.rb', line 48

def find_sha(task_definition, sha)
  container = task_definition["container_definitions"].first # assume first
  container["image"].include?(sha)
end

#from_git_sha(sha) ⇒ Object 



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# File 'lib/ufo/rollback.rb', line 25

def from_git_sha(sha)
  task_definition = nil
  max_items = 30
  puts "Looking for task definition based on the git sha.  Searching most recent #{max_items} task definitions..."
  arns = task_definition_arns(@service, max_items)
  arns.each do |arn|
    resp = ecs.describe_task_definition(task_definition: arn)
    found = find_sha(resp.task_definition, sha)
    if found
      task_definition = arn.split('/').last
      break
    end
    print '.'
    @final_newline
  end

  puts '' if @final_newline
  unless task_definition
    puts "Unable to find a task definition with a image with: #{version}"
  end
  task_definition
end

#normalize_version(version) ⇒ Object

normalizes the task definition if user passes in:

1 => demo-web:1
demo-web:1 => demo-web:1



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# File 'lib/ufo/rollback.rb', line 14

def normalize_version(version)
  if version =~ /^\d+$/
    "#{@service}:#{version}"
  elsif version.include?(':') && !version.include?(":ufo-")
    version
  else # assume git sha
    # tongueroo/demo-ufo:ufo-2018-06-21T15-03-52-ac60240
    from_git_sha(version)
  end
end