updateStrategy for clusters running since pre v1.5.

[tumd]

Hi,

I have no idea if this is the right place for this kind of issue, nor if this is the place for a fix, but here goes;

We are seeing alerts according to this rule for ip-masq-agent on two of our (older) clusters, but not on our newer clusters.

We noticed that these two older clusters (currently running v1.22.12-gke.500) have .spec.updateStrategy.type set to OnDelete while the other clusters have RollingUpdate.

According to the docs, OnDelete was the default pre k8s 1.5. And I think our two older clusters may have been around since then, which would also explain why these clusters still has this old default setting.

The ip-masq-agent.yaml-manifest in this repo doesn't specify any updateStrategy and I figured this may be the source of this issue, and that others with long-running clusters may face the same issue.

I don't want to poke in the kube-system namespace manually, but this perhaps would be the occasion where it would be justified.

[MrHohn]

Interesting issue - I think it doesn't harm to put the desired update strategy in the example manifest here (RollingUpdate seems to be what we want). But it will ultimately depend on the ip-masq-agent providers on updating their own deployment.

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[kundan2707]

/remove-lifecycle rotten

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