Class: Dapp::Deployment::KubeBase

Inherits:
Object
  • Object
show all
Defined in:
lib/dapp/deployment/kube_base.rb

Direct Known Subclasses

KubeApp, KubeDeployment

Instance Method Summary collapse

Instance Method Details

#delete_pod!(name) ⇒ Object 



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# File 'lib/dapp/deployment/kube_base.rb', line 13

def delete_pod!(name)
  deployment.kubernetes.delete_pod!(name)
  loop do
    break unless deployment.kubernetes.pod?(name)
    sleep 1
  end
end

#merge_kube_controller_spec(spec1, spec2) ⇒ Object 



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# File 'lib/dapp/deployment/kube_base.rb', line 74

def merge_kube_controller_spec(spec1, spec2)
  spec1.kube_in_depth_merge(spec2).tap do |spec|
    spec['spec']['template']['spec']['containers'] = begin
      containers1 = spec1['spec']['template']['spec']['containers']
      containers2 = spec2['spec']['template']['spec']['containers']
      containers2.map do |container2|
        if (container1 = containers1.find { |c| c['name'] == container2['name'] }).nil?
          container2
        else
          container1.kube_in_depth_merge(container2)
        end
      end
    end
  end
end

#pod_exist?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dapp/deployment/kube_base.rb', line 4

def pod_exist?(name)
  deployment.kubernetes.pod?(name, labelSelector: labelSelector)
end

#pod_succeeded?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dapp/deployment/kube_base.rb', line 8

def pod_succeeded?(name)
  return false unless pod_exist?(name)
  deployment.kubernetes.pod_status(name)['status']['phase'] == 'Succeeded'
end

#run_job!(spec, name) ⇒ Object 



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# File 'lib/dapp/deployment/kube_base.rb', line 21

def run_job!(spec, name)
  current_spec = deployment.kubernetes.create_pod!(spec)

  deployment.dapp.log_process(:pending) do
    loop do
      current_spec = deployment.kubernetes.pod_status(name)
      break if current_spec['status']['phase'] != 'Pending'
      unless current_spec['status']['containerStatuses'].nil?
        current_spec['status']['containerStatuses'].first['state'].each do |_, desc|
          if ['ErrImagePull', 'ImagePullBackOff'].include? desc['reason']
            raise Error::Deployment,
                  code: :bootstrap_image_not_found,
                  data: { reason: desc['reason'], message: desc['message'] }
          end
        end
      end
      sleep 1
    end
  end

  deployment.dapp.log_process(:running) do
    log_thread = Thread.new do
      begin
        deployment.kubernetes.pod_log(name, follow: true) { |chunk| puts chunk }
      rescue Kubernetes::Error::Timeout
        deployment.dapp.log_warning('Pod log: read timeout reached!')
      end
    end

    loop do
      current_spec = deployment.kubernetes.pod_status(name)
      break if current_spec['status']['phase'] != 'Running'
      sleep 1
    end

    sleep 1 # last chance to get a message
    log_thread.kill if log_thread.alive?

    phase = current_spec['status']['phase']
    if phase == 'Failed'
      current_spec['status']['containerStatuses'].first['state'].each do |status, desc|
        next if status == 'running'
        raise Error::Deployment,
              code: :bootstrap_command_failed,
              data: { reason: desc['reason'], message: desc['message'], exit_code: desc['exitCode'] }
      end
    end
    raise Error::Deployment,
          code: :bootstrap_failed,
          data: { phase: phase, message: current_spec['status']['message'] } unless phase == 'Succeeded'
  end
end