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moby--moby/daemon/util_test.go
Brian Goff f63f73a4a8 Configure shims from runtime config
In dockerd we already have a concept of a "runtime", which specifies the
OCI runtime to use (e.g. runc).
This PR extends that config to add containerd shim configuration.
This option is only exposed within the daemon itself (cannot be
configured in daemon.json).
This is due to issues in supporting unknown shims which will require
more design work.

What this change allows us to do is keep all the runtime config in one
place.

So the default "runc" runtime will just have it's already existing shim
config codified within the runtime config alone.
I've also added 2 more "stock" runtimes which are basically runc+shimv1
and runc+shimv2.
These new runtime configurations are:

- io.containerd.runtime.v1.linux - runc + v1 shim using the V1 shim API
- io.containerd.runc.v2 - runc + shim v2

These names coincide with the actual names of the containerd shims.

This allows the user to essentially control what shim is going to be
used by either specifying these as a `--runtime` on container create or
by setting `--default-runtime` on the daemon.

For custom/user-specified runtimes, the default shim config (currently
shim v1) is used.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2020-07-13 14:18:02 -07:00

72 lines
3 KiB
Go

// +build linux
package daemon
import (
"context"
"time"
"github.com/containerd/containerd"
libcontainerdtypes "github.com/docker/docker/libcontainerd/types"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
type mockProcess struct {
}
func (m *mockProcess) Delete(_ context.Context) (uint32, time.Time, error) {
return 0, time.Time{}, nil
}
// Mock containerd client implementation, for unit tests.
type MockContainerdClient struct {
}
func (c *MockContainerdClient) Version(ctx context.Context) (containerd.Version, error) {
return containerd.Version{}, nil
}
func (c *MockContainerdClient) Restore(ctx context.Context, containerID string, attachStdio libcontainerdtypes.StdioCallback) (alive bool, pid int, p libcontainerdtypes.Process, err error) {
return false, 0, &mockProcess{}, nil
}
func (c *MockContainerdClient) Create(ctx context.Context, containerID string, spec *specs.Spec, shim string, runtimeOptions interface{}, opts ...containerd.NewContainerOpts) error {
return nil
}
func (c *MockContainerdClient) Start(ctx context.Context, containerID, checkpointDir string, withStdin bool, attachStdio libcontainerdtypes.StdioCallback) (pid int, err error) {
return 0, nil
}
func (c *MockContainerdClient) SignalProcess(ctx context.Context, containerID, processID string, signal int) error {
return nil
}
func (c *MockContainerdClient) Exec(ctx context.Context, containerID, processID string, spec *specs.Process, withStdin bool, attachStdio libcontainerdtypes.StdioCallback) (int, error) {
return 0, nil
}
func (c *MockContainerdClient) ResizeTerminal(ctx context.Context, containerID, processID string, width, height int) error {
return nil
}
func (c *MockContainerdClient) CloseStdin(ctx context.Context, containerID, processID string) error {
return nil
}
func (c *MockContainerdClient) Pause(ctx context.Context, containerID string) error { return nil }
func (c *MockContainerdClient) Resume(ctx context.Context, containerID string) error { return nil }
func (c *MockContainerdClient) Stats(ctx context.Context, containerID string) (*libcontainerdtypes.Stats, error) {
return nil, nil
}
func (c *MockContainerdClient) ListPids(ctx context.Context, containerID string) ([]uint32, error) {
return nil, nil
}
func (c *MockContainerdClient) Summary(ctx context.Context, containerID string) ([]libcontainerdtypes.Summary, error) {
return nil, nil
}
func (c *MockContainerdClient) DeleteTask(ctx context.Context, containerID string) (uint32, time.Time, error) {
return 0, time.Time{}, nil
}
func (c *MockContainerdClient) Delete(ctx context.Context, containerID string) error { return nil }
func (c *MockContainerdClient) Status(ctx context.Context, containerID string) (containerd.ProcessStatus, error) {
return "null", nil
}
func (c *MockContainerdClient) UpdateResources(ctx context.Context, containerID string, resources *libcontainerdtypes.Resources) error {
return nil
}
func (c *MockContainerdClient) CreateCheckpoint(ctx context.Context, containerID, checkpointDir string, exit bool) error {
return nil
}