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Adding a default docker registry mirror (#689)

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* Adding a default docker registry mirror

This change allows the controller to start with a specified default
docker registry mirror and avoid having to specify it in all the runner*
objects.

The change is backward compatible, if a runner has a docker registry
mirror specified, it will supersede the default one.
This commit is contained in:
Sebastien Le Digabel
2021-07-14 22:20:08 +01:00
committed by GitHub
parent b27b6ea2a8
commit 7f2795b5d6
6 changed files with 46 additions and 27 deletions
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20
controllers/runner_controller.go
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@@ -66,6 +66,7 @@ type RunnerReconciler struct {
GitHubClient *github.Client
RunnerImage string
DockerImage string
DockerRegistryMirror string
Name string
RegistrationRecheckInterval time.Duration
RegistrationRecheckJitter time.Duration
@@ -634,7 +635,7 @@ func (r *RunnerReconciler) newPod(runner v1alpha1.Runner) (corev1.Pod, error) {
registrationOnly := metav1.HasAnnotation(runner.ObjectMeta, annotationKeyRegistrationOnly)
pod, err := newRunnerPod(template, runner.Spec.RunnerConfig, r.RunnerImage, r.DockerImage, r.GitHubClient.GithubBaseURL, registrationOnly)
pod, err := newRunnerPod(template, runner.Spec.RunnerConfig, r.RunnerImage, r.DockerImage, r.DockerRegistryMirror, r.GitHubClient.GithubBaseURL, registrationOnly)
if err != nil {
return pod, err
}
@@ -728,7 +729,7 @@ func mutatePod(pod *corev1.Pod, token string) *corev1.Pod {
return updated
}
func newRunnerPod(template corev1.Pod, runnerSpec v1alpha1.RunnerConfig, defaultRunnerImage, defaultDockerImage, githubBaseURL string, registrationOnly bool) (corev1.Pod, error) {
func newRunnerPod(template corev1.Pod, runnerSpec v1alpha1.RunnerConfig, defaultRunnerImage, defaultDockerImage, defaultDockerRegistryMirror string, githubBaseURL string, registrationOnly bool) (corev1.Pod, error) {
var (
privileged bool = true
dockerdInRunner bool = runnerSpec.DockerdWithinRunnerContainer != nil && *runnerSpec.DockerdWithinRunnerContainer
@@ -747,6 +748,13 @@ func newRunnerPod(template corev1.Pod, runnerSpec v1alpha1.RunnerConfig, default
workDir = "/runner/_work"
}
var dockerRegistryMirror string
if runnerSpec.DockerRegistryMirror == nil {
dockerRegistryMirror = defaultDockerRegistryMirror
} else {
dockerRegistryMirror = *runnerSpec.DockerRegistryMirror
}
env := []corev1.EnvVar{
{
Name: EnvVarOrg,
@@ -863,11 +871,11 @@ func newRunnerPod(template corev1.Pod, runnerSpec v1alpha1.RunnerConfig, default
}...)
}
if mirror := runnerSpec.DockerRegistryMirror; mirror != nil && dockerdInRunner {
if dockerRegistryMirror != "" && dockerdInRunner {
runnerContainer.Env = append(runnerContainer.Env, []corev1.EnvVar{
{
Name: "DOCKER_REGISTRY_MIRROR",
Value: *runnerSpec.DockerRegistryMirror,
Value: dockerRegistryMirror,
},
}...)
}
@@ -994,9 +1002,9 @@ func newRunnerPod(template corev1.Pod, runnerSpec v1alpha1.RunnerConfig, default
)
}
if mirror := runnerSpec.DockerRegistryMirror; mirror != nil {
if dockerRegistryMirror != "" {
dockerdContainer.Args = append(dockerdContainer.Args,
fmt.Sprintf("--registry-mirror=%s", *runnerSpec.DockerRegistryMirror),
fmt.Sprintf("--registry-mirror=%s", dockerRegistryMirror),
)
}
}