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Allow the Kubelet Docker container prefix to be changed

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Enables running multiple Kubelets on the same instance for testing and
for node bootstrapping experimentation
This commit is contained in:
Clayton Coleman 2016-01-31 01:03:05 -05:00
parent f915ca55d0
commit e3f4e823ba
1 changed files with 11 additions and 2 deletions
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13
pkg/kubelet/dockertools/docker.go
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@ -81,6 +81,17 @@ type KubeletContainerName struct {
ContainerName string
}
// containerNamePrefix is used to identify the containers on the node managed by this
// process.
var containerNamePrefix = "k8s"
// SetContainerNamePrefix allows the container prefix name for this process to be changed.
// This is intended to support testing and bootstrapping experimentation. It cannot be
// changed once the Kubelet starts.
func SetContainerNamePrefix(prefix string) {
containerNamePrefix = prefix
}
// DockerPuller is an abstract interface for testability. It abstracts image pull operations.
type DockerPuller interface {
Pull(image string, secrets []api.Secret) error
@ -209,8 +220,6 @@ func (p throttledDockerPuller) IsImagePresent(name string) (bool, error) {
return p.puller.IsImagePresent(name)
}
const containerNamePrefix = "k8s"
// Creates a name which can be reversed to identify both full pod name and container name.
func BuildDockerName(dockerName KubeletContainerName, container *api.Container) (string, string) {
containerName := dockerName.ContainerName + "." + strconv.FormatUint(kubecontainer.HashContainer(container), 16)