def scale_deployment(apps_v1_api: AppsV1Api, name, namespace, value) -> None:
"""
Scale a deployment.
:param apps_v1_api: AppsV1Api
:param namespace: namespace name
:param name: deployment name
:param value: int
:return:
"""
print(f"Scale a deployment '{name}'")
body = apps_v1_api.read_namespaced_deployment(name, namespace)
body.spec.replicas = value
apps_v1_api.patch_namespaced_deployment_scale(name, namespace, body)
print(f"Scale a deployment '{name}': complete")
def rollout_status_deployment(
api: client.AppsV1Api,
name: str,
namespace: str,
) -> Tuple[str, bool]:
# tbh this is mostly ported from Go into Python from:
# https://github.com/kubernetes/kubernetes/blob/master/pkg/kubectl/rollout_status.go#L76-L92
deployment = api.read_namespaced_deployment(name=name, namespace=namespace)
if deployment.metadata.generation > deployment.status.observed_generation:
return (
f"Waiting for deployment {repr(name)} spec update to be observed...",
False,
)
# TimedOutReason is added in a deployment when its newest replica set
# fails to show any progress within the given deadline (progressDeadlineSeconds).
for condition in deployment.status.conditions or []:
if condition.type == "Progressing":
if condition.reason == "ProgressDeadlineExceeded":
return f"deployment {repr(name)} exceeded its progress deadline", False
spec_replicas = deployment.spec.replicas
status_replicas = deployment.status.replicas or 0
updated_replicas = deployment.status.updated_replicas or 0
available_replicas = deployment.status.available_replicas or 0
if updated_replicas < spec_replicas:
return (
f"Waiting for deployment {repr(name)} rollout to finish: {updated_replicas} out of {spec_replicas} new replicas have been updated...",
False,
)
if status_replicas > updated_replicas:
return (
f"Waiting for deployment {repr(name)} rollout to finish: {status_replicas-updated_replicas} old replicas are pending termination...",
False,
)
if available_replicas < updated_replicas:
return (
f"Waiting for deployment {repr(name)} rollout to finish: {available_replicas} of {updated_replicas} updated replicas are available...",
False,
)
return f"Deployment {repr(name)} successfully rolled out", True