在 k8s 上使用 helm 安装 jupyterhub(z2jh) 失败，给出 hook-image-awaiter 并出现超时错误（错误：预升级挂钩失败）

Question

我正在使用 helm 在 k8s 上安装 jupyterhub。

helm upgrade --cleanup-on-fail --install jupyterhub jupyterhub-2.0.0/jupyterhub/ --namespace my-NS --create-namespace --version=2.0.0 --values my-values.yaml --timeout 30m --debug

创建 hook-image-awaiter pod 时失败并出错。

helm 调试错误：

upgrade.go:142: [debug] preparing upgrade for jupyterhub
upgrade.go:150: [debug] performing update for jupyterhub
upgrade.go:322: [debug] creating upgraded release for jupyterhub
client.go:310: [debug] Starting delete for "hook-image-puller" DaemonSet
client.go:128: [debug] creating 1 resource(s)
client.go:310: [debug] Starting delete for "hook-image-awaiter" ServiceAccount
client.go:128: [debug] creating 1 resource(s)
client.go:310: [debug] Starting delete for "hook-image-awaiter" Job
client.go:128: [debug] creating 1 resource(s)
client.go:540: [debug] Watching for changes to Job hook-image-awaiter with timeout of 30m0s
client.go:568: [debug] Add/Modify event for hook-image-awaiter: ADDED
client.go:607: [debug] hook-image-awaiter: Jobs active: 1, jobs failed: 0, jobs succeeded: 0
client.go:568: [debug] Add/Modify event for hook-image-awaiter: MODIFIED
client.go:607: [debug] hook-image-awaiter: Jobs active: 1, jobs failed: 1, jobs succeeded: 0
client.go:568: [debug] Add/Modify event for hook-image-awaiter: MODIFIED
client.go:607: [debug] hook-image-awaiter: Jobs active: 1, jobs failed: 2, jobs succeeded: 0
client.go:568: [debug] Add/Modify event for hook-image-awaiter: MODIFIED
client.go:607: [debug] hook-image-awaiter: Jobs active: 1, jobs failed: 3, jobs succeeded: 0
client.go:568: [debug] Add/Modify event for hook-image-awaiter: MODIFIED
client.go:607: [debug] hook-image-awaiter: Jobs active: 1, jobs failed: 4, jobs succeeded: 0
client.go:568: [debug] Add/Modify event for hook-image-awaiter: MODIFIED
client.go:607: [debug] hook-image-awaiter: Jobs active: 1, jobs failed: 5, jobs succeeded: 0
client.go:568: [debug] Add/Modify event for hook-image-awaiter: MODIFIED
client.go:607: [debug] hook-image-awaiter: Jobs active: 1, jobs failed: 6, jobs succeeded: 0
client.go:568: [debug] Add/Modify event for hook-image-awaiter: MODIFIED
upgrade.go:434: [debug] warning: Upgrade "jupyterhub" failed: pre-upgrade hooks failed: job failed: BackoffLimitExceeded
Error: UPGRADE FAILED: pre-upgrade hooks failed: job failed: BackoffLimitExceeded
helm.go:84: [debug] pre-upgrade hooks failed: job failed: BackoffLimitExceeded
UPGRADE FAILED

网上有一些答案并不能帮助解决问题。我尝试过以下，

• 增加 helm 安装超时 - 不起作用
• 无法拉取映像：我可以看到 jupyterhub/k8s-image-awaiter:2.0.0 被拉取，并且在描述 pod 时我没有看到任何错误

挂钩图像拉取器： 钩子图像等待者：

事件日志：

PS：我在values.yaml中禁用了rbac（create = false），并在新的命名空间中安装jupyterhub，而另一个命名空间中正在运行）

Answer 1

禁用预拉钩：

https://z2jh.jupyter.org/en/latest/administrator/optimization.html#pulling-images-before-users-arrive

prePuller:
  hook:
    enabled: false