instances

Documentation

Index

• type FakeInstanceGroups
  • func NewFakeInstanceGroups(nodes sets.String, namer *namer.Namer) *FakeInstanceGroups
  • func (f *FakeInstanceGroups) AddInstancesToInstanceGroup(name, zone string, instanceRefs []*compute.InstanceReference) error
  • func (f *FakeInstanceGroups) CreateInstanceGroup(ig *compute.InstanceGroup, zone string) error
  • func (f *FakeInstanceGroups) DeleteInstanceGroup(name, zone string) error
  • func (f *FakeInstanceGroups) GetInstanceGroup(name, zone string) (*compute.InstanceGroup, error)
  • func (f *FakeInstanceGroups) GetInstancesByZone() map[string][]string
  • func (f *FakeInstanceGroups) ListInstanceGroups(zone string) ([]*compute.InstanceGroup, error)
  • func (f *FakeInstanceGroups) ListInstancesInInstanceGroup(name, zone string, state string) ([]*compute.InstanceWithNamedPorts, error)
  • func (f *FakeInstanceGroups) RemoveInstancesFromInstanceGroup(name, zone string, instanceRefs []*compute.InstanceReference) error
  • func (f *FakeInstanceGroups) SetNamedPortsOfInstanceGroup(igName, zone string, namedPorts []*compute.NamedPort) error
  • func (f *FakeInstanceGroups) ToInstanceReferences(zone string, instanceNames []string) (refs []*compute.InstanceReference)
• type FakeZoneLister
  • func (z *FakeZoneLister) GetZoneForNode(name string) (string, error)
  • func (z *FakeZoneLister) ListZones() ([]string, error)
• type InstanceGroups
• type Instances
  • func (i *Instances) Add(groupName string, names []string) error
  • func (i *Instances) DeleteInstanceGroup(name string) error
  • func (i *Instances) EnsureInstanceGroupsAndPorts(name string, ports []int64) (igs []*compute.InstanceGroup, err error)
  • func (i *Instances) Get(name, zone string) (*compute.InstanceGroup, error)
  • func (i *Instances) Init(zl ZoneLister)
  • func (i *Instances) List() ([]string, error)
  • func (i *Instances) Remove(groupName string, names []string) error
  • func (i *Instances) Sync(nodes []string) (err error)
• type NodePool
  • func NewNodePool(cloud InstanceGroups, namer namer.BackendNamer) NodePool
• type ZoneLister

Types

type FakeInstanceGroups

type FakeInstanceGroups struct {
	// contains filtered or unexported fields
}

FakeInstanceGroups fakes out the instance groups api.

func NewFakeInstanceGroups

func NewFakeInstanceGroups(nodes sets.String, namer *namer.Namer) *FakeInstanceGroups

NewFakeInstanceGroups creates a new FakeInstanceGroups.

func (*FakeInstanceGroups) AddInstancesToInstanceGroup

func (f *FakeInstanceGroups) AddInstancesToInstanceGroup(name, zone string, instanceRefs []*compute.InstanceReference) error

AddInstancesToInstanceGroup fakes adding instances to an instance group.

func (*FakeInstanceGroups) CreateInstanceGroup

func (f *FakeInstanceGroups) CreateInstanceGroup(ig *compute.InstanceGroup, zone string) error

CreateInstanceGroup fakes instance group creation.

func (*FakeInstanceGroups) DeleteInstanceGroup

func (f *FakeInstanceGroups) DeleteInstanceGroup(name, zone string) error

DeleteInstanceGroup fakes instance group deletion.

func (*FakeInstanceGroups) GetInstanceGroup

func (f *FakeInstanceGroups) GetInstanceGroup(name, zone string) (*compute.InstanceGroup, error)

GetInstanceGroup fakes getting an instance group from the cloud.

func (*FakeInstanceGroups) GetInstancesByZone

func (f *FakeInstanceGroups) GetInstancesByZone() map[string][]string

GetInstancesByZone returns the zone to instances map.

func (*FakeInstanceGroups) ListInstanceGroups

func (f *FakeInstanceGroups) ListInstanceGroups(zone string) ([]*compute.InstanceGroup, error)

ListInstanceGroups fakes listing instancegroups in a zone

func (*FakeInstanceGroups) ListInstancesInInstanceGroup

func (f *FakeInstanceGroups) ListInstancesInInstanceGroup(name, zone string, state string) ([]*compute.InstanceWithNamedPorts, error)

ListInstancesInInstanceGroup fakes listing instances in an instance group.

func (*FakeInstanceGroups) RemoveInstancesFromInstanceGroup

func (f *FakeInstanceGroups) RemoveInstancesFromInstanceGroup(name, zone string, instanceRefs []*compute.InstanceReference) error

RemoveInstancesFromInstanceGroup fakes removing instances from an instance group.

func (*FakeInstanceGroups) SetNamedPortsOfInstanceGroup

func (f *FakeInstanceGroups) SetNamedPortsOfInstanceGroup(igName, zone string, namedPorts []*compute.NamedPort) error

func (*FakeInstanceGroups) ToInstanceReferences

func (f *FakeInstanceGroups) ToInstanceReferences(zone string, instanceNames []string) (refs []*compute.InstanceReference)

type FakeZoneLister

type FakeZoneLister struct {
	Zones []string
}

FakeZoneLister records zones for nodes.

func (*FakeZoneLister) GetZoneForNode

func (z *FakeZoneLister) GetZoneForNode(name string) (string, error)

GetZoneForNode returns the only zone stored in the fake zone lister.

func (*FakeZoneLister) ListZones

func (z *FakeZoneLister) ListZones() ([]string, error)

ListZones returns the list of zones.

type InstanceGroups

type InstanceGroups interface {
	GetInstanceGroup(name, zone string) (*compute.InstanceGroup, error)
	CreateInstanceGroup(ig *compute.InstanceGroup, zone string) error
	DeleteInstanceGroup(name, zone string) error
	ListInstanceGroups(zone string) ([]*compute.InstanceGroup, error)

	// TODO: Refactor for modulatiry.
	ListInstancesInInstanceGroup(name, zone string, state string) ([]*compute.InstanceWithNamedPorts, error)
	AddInstancesToInstanceGroup(name, zone string, instanceRefs []*compute.InstanceReference) error
	RemoveInstancesFromInstanceGroup(name, zone string, instanceRefs []*compute.InstanceReference) error
	ToInstanceReferences(zone string, instanceNames []string) (refs []*compute.InstanceReference)
	SetNamedPortsOfInstanceGroup(igName, zone string, namedPorts []*compute.NamedPort) error
}

InstanceGroups is an interface for managing gce instances groups, and the instances therein.

type Instances

type Instances struct {
	ZoneLister
	// contains filtered or unexported fields
}

Instances implements NodePool.

func (*Instances) Add

func (i *Instances) Add(groupName string, names []string) error

Add adds the given instances to the appropriately zoned Instance Group.

func (*Instances) DeleteInstanceGroup

func (i *Instances) DeleteInstanceGroup(name string) error

DeleteInstanceGroup deletes the given IG by name, from all zones.

func (*Instances) EnsureInstanceGroupsAndPorts

func (i *Instances) EnsureInstanceGroupsAndPorts(name string, ports []int64) (igs []*compute.InstanceGroup, err error)

EnsureInstanceGroupsAndPorts creates or gets an instance group if it doesn't exist and adds the given ports to it. Returns a list of one instance group per zone, all of which have the exact same named ports.

func (*Instances) Get

func (i *Instances) Get(name, zone string) (*compute.InstanceGroup, error)

Get returns the Instance Group by name.

func (*Instances) Init

func (i *Instances) Init(zl ZoneLister)

Init initializes the instance pool. The given zoneLister is used to list all zones that require an instance group, and to lookup which zone a given Kubernetes node is in so we can add it to the right instance group.

func (*Instances) List

func (i *Instances) List() ([]string, error)

List lists the names of all InstanceGroups belonging to this cluster.

func (*Instances) Remove

func (i *Instances) Remove(groupName string, names []string) error

Remove removes the given instances from the appropriately zoned Instance Group.

func (*Instances) Sync

func (i *Instances) Sync(nodes []string) (err error)

Sync nodes with the instances in the instance group.

type NodePool

type NodePool interface {
	Init(zl ZoneLister)

	// The following 2 methods operate on instance groups.
	EnsureInstanceGroupsAndPorts(name string, ports []int64) ([]*compute.InstanceGroup, error)
	DeleteInstanceGroup(name string) error

	// TODO: Refactor for modularity
	Add(groupName string, nodeNames []string) error
	Remove(groupName string, nodeNames []string) error
	Sync(nodeNames []string) error
	Get(name, zone string) (*compute.InstanceGroup, error)
	List() ([]string, error)
}

NodePool is an interface to manage a pool of kubernetes nodes synced with vm instances in the cloud through the InstanceGroups interface. It handles zones opaquely using the zoneLister.

func NewNodePool

func NewNodePool(cloud InstanceGroups, namer namer.BackendNamer) NodePool

NewNodePool creates a new node pool.

• cloud: implements InstanceGroups, used to sync Kubernetes nodes with members of the cloud InstanceGroup.

type ZoneLister

type ZoneLister interface {
	ListZones() ([]string, error)
	GetZoneForNode(name string) (string, error)
}

ZoneLister manages lookups for GCE instance groups/instances to zones.