// OneShot runs a container, expecting it to successfully run to completion
// and die, after which it is removed. Not goroutine safe: only one OneShot
// can be running at once.
// Adds the same binds as the cluster containers (certs, binary, etc).
func (l *LocalCluster) OneShot(
ctx context.Context,
ref string,
ipo types.ImagePullOptions,
containerConfig container.Config,
hostConfig container.HostConfig,
name string,
) error {
if err := pullImage(ctx, l, ref, ipo); err != nil {
return err
}
hostConfig.VolumesFrom = []string{l.vols.id}
container, err := createContainer(ctx, l, containerConfig, hostConfig, name)
if err != nil {
return err
}
l.oneshot = container
defer func() {
if err := l.oneshot.Remove(ctx); err != nil {
log.Errorf(ctx, "ContainerRemove: %s", err)
}
l.oneshot = nil
}()
if err := l.oneshot.Start(ctx); err != nil {
return err
}
if err := l.oneshot.Wait(ctx); err != nil {
return err
}
return nil
}
// createRoach creates the docker container for a testNode. It may be called in
// parallel to start many nodes at once, and thus should remain threadsafe.
func (l *LocalCluster) createRoach(
ctx context.Context, node *testNode, vols *Container, env []string, cmd ...string,
) {
l.panicOnStop()
hostConfig := container.HostConfig{
PublishAllPorts: true,
NetworkMode: container.NetworkMode(l.networkID),
Privileged: l.privileged,
}
if vols != nil {
hostConfig.VolumesFrom = append(hostConfig.VolumesFrom, vols.id)
}
var hostname string
if node.index >= 0 {
hostname = fmt.Sprintf("roach-%s-%d", l.clusterID, node.index)
}
log.Infof(ctx, "creating docker container with name: %s", hostname)
var entrypoint []string
if *cockroachImage == builderImageFull {
entrypoint = append(entrypoint, CockroachBinaryInContainer)
} else if *cockroachEntry != "" {
entrypoint = append(entrypoint, *cockroachEntry)
}
var err error
node.Container, err = createContainer(
ctx,
l,
container.Config{
Hostname: hostname,
Image: *cockroachImage,
ExposedPorts: map[nat.Port]struct{}{
DefaultTCP: {},
defaultHTTP: {},
},
Entrypoint: entrypoint,
Env: env,
Cmd: cmd,
Labels: map[string]string{
// Allow for `docker ps --filter label=Hostname=roach-<id>-0` or `--filter label=Roach`.
"Hostname": hostname,
"Roach": "",
"Acceptance-cluster-id": l.clusterID,
},
},
hostConfig,
node.nodeStr,
)
maybePanic(err)
}