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Improve k8s Deployment and Daemonset wait conditions

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Ensure that Deployments and Daemonsets properly await
all replicas to be available. Correctly handles the
subtle edge case when a service account no longer exists.

Note that this will dramatically slow Daemonset updates
This commit is contained in:
Will Thames
2020-05-05 09:36:46 +10:00
parent 5f3d2fc6f1
commit 35ffd0e431
6 changed files with 182 additions and 17 deletions
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6
plugins/module_utils/raw.py
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@@ -469,7 +469,8 @@ class KubernetesRawModule(KubernetesAnsibleModule):
# Furthermore deployment.status.availableReplicas == deployment.status.replicas == None if status is empty
return (deployment.status and deployment.status.replicas is not None and
deployment.status.availableReplicas == deployment.status.replicas and
deployment.status.observedGeneration == deployment.metadata.generation)
deployment.status.observedGeneration == deployment.metadata.generation and
not deployment.status.unavailableReplicas)
def _pod_ready(pod):
return (pod.status and pod.status.containerStatuses is not None and
@@ -478,7 +479,8 @@ class KubernetesRawModule(KubernetesAnsibleModule):
def _daemonset_ready(daemonset):
return (daemonset.status and daemonset.status.desiredNumberScheduled is not None and
daemonset.status.numberReady == daemonset.status.desiredNumberScheduled and
daemonset.status.observedGeneration == daemonset.metadata.generation)
daemonset.status.observedGeneration == daemonset.metadata.generation and
not daemonset.status.unavailableReplicas)
def _custom_condition(resource):
if not resource.status or not resource.status.conditions: