Class: Docker::Swarm::Service

Inherits:
Object
  • Object
show all
Defined in:
lib/docker/swarm/service.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(swarm, hash) ⇒ Service

Returns a new instance of Service.



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# File 'lib/docker/swarm/service.rb', line 7

def initialize(swarm, hash)
  @swarm = swarm
  @hash = hash
end

Instance Attribute Details

#hash ⇒ Object (readonly)

Returns the value of attribute hash.



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# File 'lib/docker/swarm/service.rb', line 5

def hash
  @hash
end

Class Method Details

.DEFAULT_OPTIONS ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 90

def self.DEFAULT_OPTIONS
  default_service_create_options = {
      "Name" => "<<Required>>",
      "TaskTemplate" => {
        "ContainerSpec" => {
          "Image" => "<<Required>>",
          "Mounts" => [],
          "User" => "root"
        },
        "Env" => [],
        "LogDriver" => {
          "Name" => "json-file",
          "Options" => {
            "max-file" => "3",
            "max-size" => "10M"
          }
        },
        "Placement" => {},
        "Resources" => {
          "Limits" => {
            "MemoryBytes" => 104857600
          },
          "Reservations" => {
#              "NanoCPUs" => ?
#              MemoryBytes =>
         }
        },
        "RestartPolicy" => {
          "Condition" => "on-failure",
          "Delay" => 1,
          "MaxAttempts" => 3
        }
      }, # End of TaskTemplate
      "Mode" => {
        "Replicated" => {
          "Replicas" => 1
        }
      },
      "UpdateConfig" => {
        "Delay" => 2,
        "Parallelism" => 2,
        "FailureAction" => "pause"
      },
      "EndpointSpec" => {
        "Ports" => [
          {
  #          "Protocol" => "http",
  #          "PublishedPort" => 2881,
  #          "TargetPort" => 2881
          }
        ]
      },
      "Labels" => {
        "foo" => "bar"
      }
    }
  return default_service_create_options
end

Instance Method Details

#id ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 16

def id()
  return @hash['ID']
end

#name ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 12

def name()
  @hash['Spec']['Name']
end

#network_ids ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 26

def network_ids
  network_ids = []
  if (@hash['Endpoint']['VirtualIPs'])
    @hash['Endpoint']['VirtualIPs'].each do |network_info|
      network_ids << network_info['NetworkID']
    end
  end
  return network_ids
end

#reload ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 20

def reload()
  s = @swarm.find_service(id())
  @hash = s.hash
  return self
end

#remove(opts = {}) ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 36

def remove(opts = {})
  query = {}
  @swarm.connection.delete("/services/#{self.id}", query, :body => opts.to_json)
end

#replicas ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 67

def replicas
  @hash['Spec']['Mode']['Replicated']['Replicas']
end

#restart ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 56

def restart
  options = {}
  options['TaskTemplate'] = {'ForceUpdate' => 1}
  update(options)
end

#scale(count) ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 62

def scale(count)
  @hash['Spec']['Mode']['Replicated']['Replicas'] = count
  self.update(@hash['Spec'])
end

#tasks ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 48

def tasks
  service_tasks = []
  @swarm.tasks.each do |task|
    service_tasks << task if (task.service_id == self.id)
  end
  return service_tasks
end

#tasks_running ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 82

def tasks_running
  return tasks_with_status(:running)
end

#tasks_starting ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 86

def tasks_starting
  return tasks_with_status(:starting)
end

#tasks_with_status(status) ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 71

def tasks_with_status(status)
  running = []
  tasks.each do |task|
    if (task.status == status)
      running << task
    end
  end
  return running
end

#update(options = {}) ⇒ Object 



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# File 'lib/docker/swarm/service.rb', line 41

def update(options = {})
  specs = @hash['Spec'].deep_merge(options)
  query = {}
  version = @hash['Version']['Index']
  response = @swarm.connection.post("/services/#{self.id}/update?version=#{version}", query, :body => specs.to_json)
end