Namespaces:
  =: io.murano.resources
  std: io.murano
  sys: io.murano.system


Name: Instance


Properties:
  name:
    Contract: $.string().notNull()
  flavor:
    Contract: $.string().notNull()
  image:
    Contract: $.string().notNull()
  keyname:
    Contract: $.string()
    Default: null

  agent:
    Contract: $.class(sys:Agent)
    Usage: Runtime
  ipAddresses:
    Contract: [$.string()]
    Usage: Out
  networks:
    Contract:
      useEnvironmentNetwork: $.bool().notNull()
      useFlatNetwork: $.bool().notNull()
      customNetworks: [$.class(Network).notNull()]
      primaryNetwork: $.class(Network).notOwned()
    Default:
      useEnvironmentNetwork: true
      useFlatNetwork: false
      customNetworks: []
      primaryNetwork: null
  assignFloatingIp:
    Contract: $.bool().notNull()
    Default: false
  floatingIpAddress:
    Contract: $.string()
    Usage: Out
  securityGroupName:
    Contract: $.string()
    Default: null
  sharedIps:
    Contract:
      - $.class(std:SharedIp)
    Usage: InOut  # as it is set in setSharedIps

Methods:
  initialize:
    Body:
      - $.environment: $.find(std:Environment).require()
      - $.agent: new(sys:Agent, host => $)
      - $.resources: new(sys:Resources)

  setSharedIps:
    Arguments:
      ips:
        Contract:
          - $.class(std:SharedIp)
    Body:
      $.sharedIps: $ips

  deploy:
    Body:
      - $securityGroupName: coalesce(
            $.securityGroupName,
            $.environment.securityGroupManager.defaultGroupName
          )
      - $.createDefaultInstanceSecurityGroupRules($securityGroupName)
      - $.detectPrimaryNetwork()
      - $.ensureSharedIpsDeployed()
      - $.ensureNetworksDeployed()
      - If: $.networks.useEnvironmentNetwork and $.environment.defaultNetworks.environment!=null
        Then:
          $.joinNet($.environment.defaultNetworks.environment, $securityGroupName)
      - If: $.networks.useFlatNetwork and $.environment.defaultNetworks.flat!=null
        Then:
          $.joinNet($.environment.defaultNetworks.flat, $securityGroupName)
      - $.networks.customNetworks.select($this.joinNet($, $securityGroupName))

      - $userData: $.prepareUserData()

      - $template:
          resources:
            $.name:
              type: 'OS::Nova::Server'
              properties:
                flavor: $.flavor
                image: $.image
                user_data: $userData
                key_name: $.keyname
          outputs:
            format('{0}-assigned-ip', $.name):
              description: format('IP address assigned to {0} instance', $.name)
              value:
                get_attr: [$.name, addresses]
      - $.environment.stack.updateTemplate($template)
      - $.environment.stack.push()
      - $outputs: $.environment.stack.output()
      - $.ipAddresses: $outputs.get(format('{0}-assigned-ip', $this.name)).values().flatten().addr.list()
      - $.floatingIpAddress: $outputs.get(format('{0}-FloatingIPaddress', $this.name))
      - $.environment.instanceNotifier.trackCloudInstance($this)

  detectPrimaryNetwork:
    Body:
      - $.primaryNetwork: null
      - If: $.networks.primaryNetwork != null
        Then:
          - $.primaryNetwork: $.networks.primaryNetwork
        Else:
          - If: $.networks.useEnvironmentNetwork and $.environment.defaultNetworks.environment!=null
            Then:
              - $.primaryNetwork: $.environment.defaultNetworks.environment
            Else:
              - If: $.networks.useFlatNetwork and $.environment.defaultNetworks.flat!=null
                Then:
                  - $.primaryNetwork: $.environment.defaultNetworks.flat

  ensureNetworksDeployed:
    Body:
      - If: $.networks.useEnvironmentNetwork and $.environment.defaultNetworks.environment!=null
        Then:
          - $.environment.defaultNetworks.environment.deploy()
      - If: $.networks.useFlatNetwork and $.environment.defaultNetworks.flat!=null
        Then:
          - $.environment.defaultNetworks.flat.deploy()
      - $.networks.customNetworks.pselect($.deploy())

  ensureSharedIpsDeployed:
    Body:
      - $.sharedIps.pselect($.deploy())

  joinNet:
    Arguments:
      - net:
          Contract: $.class(Network).notNull()
      - securityGroupName:
          Contract: $.string()
    Body:
      - If: $net = $.primaryNetwork
        Then:
          - $primary: true
        Else:
          - $primary: false

      - If: $primary and $.assignFloatingIp and not $.getAttr(fipAssigned, false)
        Then:
          - $assignFip: true

        Else:
          - $assignFip: false

      - $portname: $.name + '-port-to-' + $net.id()
      - $netRef: $net.getNetworkReference()
      - $subnetRef: $net.getSubnetReference()
      - $template:
          resources:
            $portname:
              type: 'OS::Neutron::Port'
              properties:
                network_id: $netRef
                fixed_ips:
                  - subnet_id: $subnetRef
                security_groups:
                  - get_resource: $securityGroupName
            $.name:
              properties:
                networks:
                  - port:
                      get_resource: $portname
      - $.environment.stack.updateTemplate($template)

      - If: $primary
        Then:
          - For: sip
            In: $.sharedIps
            Do:
              - $template:
                  resources:
                    $portname:
                      properties:
                        allowed_address_pairs:
                          - ip_address: $sip.getSharedIpRef()
              - $.environment.stack.updateTemplate($template)

      - If: $assignFip
        Then:
          - $extNetId: $net.getExternalNetId()
          - If: $extNetId != null
            Then:
              - $fip_name: $.name + '-FloatingIP-' + $net.id()
              - $template:
                  resources:
                    $fip_name:
                      type: 'OS::Neutron::FloatingIP'
                      properties:
                        floating_network_id: $extNetId
                    $.name + '-FloatingIpAssoc-' + $net.id():
                      type: 'OS::Neutron::FloatingIPAssociation'
                      properties:
                        floatingip_id:
                          get_resource: $fip_name
                        port_id:
                          get_resource: $portname
                  outputs:
                    $.name + '-FloatingIPaddress':
                      value:
                        get_attr: [$fip_name, floating_ip_address]
                      description: Floating IP assigned
              - $.environment.stack.updateTemplate($template)
              - $.setAttr(fipAssigned, true)

  destroy:
    Body:
      - $template: $.environment.stack.current()
      - $patchBlock:
          op: remove
          path: format('/resources/{0}', $.name)
      - $template: patch($template, $patchBlock)
      - $.environment.stack.setTemplate($template)
      - $.environment.stack.push()
      - $.environment.instanceNotifier.untrackCloudInstance($this)

  createDefaultInstanceSecurityGroupRules:
    Arguments:
      - groupName:
          Contract: $.string().notNull()

  prepareUserData: