containerd

package
v0.7.4 Latest Latest
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 Go to latest Published: Jul 13, 2026 License: MIT Imports: 49 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func IsParkedContainerLabels 

func IsParkedContainerLabels(labels map[string]string) bool

IsParkedContainerLabels reports warm-pool park inventory for ListManaged.

func IsParkedSandboxID 

func IsParkedSandboxID(id string) bool

IsParkedSandboxID reports park-<hex> slot ids.

func PublishEngineTag 

func PublishEngineTag(engine string)

PublishEngineTag stamps the host engine into expvar for operator dashboards.

Types

type Client 

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

Client wraps a namespaced containerd connection.

func Connect 

func Connect(socket, namespace string) (*Client, error)

Connect dials the system containerd socket and scopes to namespace.

func NewTestClient 

func NewTestClient(namespace string, tr clientTransport) *Client

NewTestClient wires a fake or stub transport for unit tests.

func (*Client) Close 

func (c *Client) Close() error

func (*Client) ContentStore 

func (c *Client) ContentStore() content.Store

ContentStore exposes the backing content store for image config reads.

func (*Client) GetImage 

func (c *Client) GetImage(ctx context.Context, ref string) (cntr.Image, error)

func (*Client) ListContainers 

func (c *Client) ListContainers(ctx context.Context, filters ...string) ([]cntr.Container, error)

func (*Client) LoadContainer 

func (c *Client) LoadContainer(ctx context.Context, id string) (cntr.Container, error)

func (*Client) Namespace 

func (c *Client) Namespace() string

func (*Client) NewContainer 

func (c *Client) NewContainer(ctx context.Context, id string, opts ...cntr.NewContainerOpts) (cntr.Container, error)

func (*Client) Ping 

func (c *Client) Ping(ctx context.Context) error

func (*Client) PullImage 

func (c *Client) PullImage(ctx context.Context, ref string, opts ...cntr.RemoteOpt) (cntr.Image, error)

func (*Client) Raw 

func (c *Client) Raw() *cntr.Client

func (*Client) SubscribeEvents 

func (c *Client) SubscribeEvents(ctx context.Context, filters ...string) (<-chan *events.Envelope, <-chan error)

type Config 

type Config struct {
	Socket             string
	Namespace          string
	ToolboxBinaryPath  string
	ToolboxMountPath   string
	ToolboxPort        int
	Privileged         bool
	ResourceLimitsOff  bool
	DefaultRuntime     string
	WaitTimeout        time.Duration
	ToolboxWaitTimeout time.Duration
	ReadyEnabled       bool
	ReadyDir           string
	ReadinessPollInit  time.Duration
	ReadinessPollMax   time.Duration
	PullMaxConcurrent  int
	PullFailureBackoff time.Duration
	HTTPClientTimeout  time.Duration
	LogDir             string
	RunDir             string
	NativeNetnsPool    bool
}

Config holds containerd-driver settings projected from daemon config.

func FromDaemonConfig 

func FromDaemonConfig(cfg config.Config) Config

FromDaemonConfig maps internal config into driver-local settings.

type Driver 

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

Driver implements runtime.ContainerRuntime against a local containerd.

func New 

func New(cfg Config, rules *netrules.Manager, logger *slog.Logger) *Driver

New constructs a Driver. The containerd connection is lazy — Ping and Create establish it on first use so unit tests can inject a fake client.

func (*Driver) ApplyEgressPolicy 

func (d *Driver) ApplyEgressPolicy(containerIP string, allowCIDRs, denyCIDRs []string) error

func (*Driver) ApplyNetworkBlockAll 

func (d *Driver) ApplyNetworkBlockAll(containerIP string) error

func (*Driver) ApplyNetworkBlockIngress 

func (d *Driver) ApplyNetworkBlockIngress(containerIP string) error

func (*Driver) ClearEgressPolicy 

func (d *Driver) ClearEgressPolicy(containerIP string, allowCIDRs, denyCIDRs []string) error

func (*Driver) ClearNetworkBlockEgress 

func (d *Driver) ClearNetworkBlockEgress(containerIP string) error

func (*Driver) ClearNetworkBlockIngress 

func (d *Driver) ClearNetworkBlockIngress(containerIP string) error

func (*Driver) ClearNetworkRules 

func (d *Driver) ClearNetworkRules(containerIP string) error

func (*Driver) ContainerPID 

func (d *Driver) ContainerPID(ctx context.Context, containerRef string) (int, error)

ContainerPID returns the init PID for a running task. "Not running here" (no container / no task) is (0, nil) so the events mux can fall through to the other engine; genuine lookup failures propagate so netstats diagnostics aren't silently swallowed.

func (*Driver) Create 

func (d *Driver) Create(ctx context.Context, req models.CreateSandboxRequest, sandboxID, toolboxToken string, hostMounts []mounts.ContainerBind) (*models.SandboxRuntimeState, error)

Create provisions and starts a managed task in the aerolvm namespace.

func (*Driver) CreateSnapshot 

func (d *Driver) CreateSnapshot(ctx context.Context, containerRef, imageRef string) (string, error)

CreateSnapshot commits a running task filesystem into a new image in the aerolvm namespace (plans/containerd-engine.md Phase 3).

func (*Driver) Destroy 

func (d *Driver) Destroy(ctx context.Context, sandbox *models.Sandbox) error

func (*Driver) Inspect 

func (d *Driver) Inspect(ctx context.Context, containerRef string) (*models.SandboxRuntimeState, error)

func (*Driver) ListManaged 

func (d *Driver) ListManaged(ctx context.Context) (map[string]*models.SandboxRuntimeState, error)

func (*Driver) Ping 

func (d *Driver) Ping(ctx context.Context) error

Ping verifies containerd is reachable.

func (*Driver) PurgeParkedContainers 

func (d *Driver) PurgeParkedContainers(ctx context.Context) (int, error)

PurgeParkedContainers destroys park-labeled containers left from a prior run.

func (*Driver) PushAllowedPorts 

func (d *Driver) PushAllowedPorts(ctx context.Context, containerIP, toolboxToken string, ports []int) error

func (*Driver) RemoveImage 

func (d *Driver) RemoveImage(ctx context.Context, imageRef string) error

func (*Driver) Resize 

func (d *Driver) Resize(ctx context.Context, containerRef string, req models.ResizeSandboxRequest) error

func (*Driver) SetClient 

func (d *Driver) SetClient(c *Client)

func (*Driver) SetNetnsHandoff 

func (d *Driver) SetNetnsHandoff(h NetnsHandoff)

SetNetnsHandoff wires the native netns pool (Phase 2). Nil disables it.

func (*Driver) SetWarmPool 

func (d *Driver) SetWarmPool(p WarmPool)

SetWarmPool wires the containerd warm pool (Phase 3). Nil disables it.

func (*Driver) Start 

func (d *Driver) Start(ctx context.Context, containerRef string) (*models.SandboxRuntimeState, error)

func (*Driver) Stop 

func (d *Driver) Stop(ctx context.Context, containerRef string) error

func (*Driver) StreamEvents 

func (d *Driver) StreamEvents(ctx context.Context, out chan<- docker.DockerEvent) error

StreamEvents subscribes to containerd task lifecycle events for managed workloads and normalizes them into docker.DockerEvent for the service event monitor.

type NetnsHandoff 

type NetnsHandoff interface {
	Provision(ctx context.Context, sandboxID string) (netnsPath, containerIP string, err error)
	Release(ctx context.Context, sandboxID string) error
	// ReassignOwner moves adopted slot ownership from a park slot id to the
	// real sandbox id after warm adopt (rename-free).
	ReassignOwner(ctx context.Context, fromSandboxID, toSandboxID string) error
}

NetnsHandoff provisions a prepaid network namespace for containerd creates. When nil, the driver uses containerd's default network namespace (host/default).

type PoolSpawner 

type PoolSpawner struct {
	Driver *Driver
}

PoolSpawner implements containerdpool.Spawner against the containerd driver.

func (*PoolSpawner) DestroyParked 

func (p *PoolSpawner) DestroyParked(ctx context.Context, slot *containerdpool.ParkedSlot) error

func (*PoolSpawner) Park 

func (p *PoolSpawner) Park(ctx context.Context, slotID string, key containerdpool.Key) (*containerdpool.ParkedSlot, error)

type RegistryPusher 

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

RegistryPusher pushes local aerolvm-namespace images to a remote registry (AOCR snapshot path). Implements service.SnapshotPushDocker so the existing SnapshotPusher / reconciler work unchanged under SB_CONTAINER_ENGINE=containerd.

func NewRegistryPusher 

func NewRegistryPusher(d *Driver) *RegistryPusher

NewRegistryPusher returns a SnapshotPushDocker backed by the containerd driver.

func (*RegistryPusher) PushImage 

func (p *RegistryPusher) PushImage(ctx context.Context, req docker.PushImageRequest) (string, error)

PushImage tags SourceTag as DestRef in the aerolvm namespace and pushes it.

type WarmPool 

type WarmPool interface {
	HasReady(key containerdpool.Key) bool
	Acquire(ctx context.Context, key containerdpool.Key, imageID string) (*containerdpool.ParkedSlot, error)
	NoteMiss(key containerdpool.Key)
	ReleasePark(slotID string)
}

WarmPool is the Phase 3 park/adopt seam. Nil disables warm acquisition.

Source Files

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