完备的kubernetes aks (azure)虚拟节点

Question

在azure kubernetes (Ak)虚拟节点中运行prefect作业，除了添加推荐的nodeSelector/tolerations

"nodeSelector": {
    "kubernetes.io/role": "agent",
    "beta.kubernetes.io/os": "linux",
    "type": "virtual-kubelet",
},
"tolerations": [
    {"key": "virtual-kubelet.io/provider", "operator": "Exists"},
    {"key": "azure.com/aci", "effect": "NoSchedule"},
],

容器创建失败的原因如下：

Warning   ProviderCreateFailed   pod/prefect-job-XXXXX-XXXXX   ACI does not support providing args without specifying the command. Please supply both command and args to the pod spec.

在command中声明的不同https://linen.prefect.io/t/48087/topic选项不起作用。

如何解决这个问题？

Answer 1

command": ["tini", "-g", "--"],

解决了这个问题，并允许高级执行作业在aks虚拟节点中运行。

这里是一个工作的job_template的例子

{
    "apiVersion": "batch/v1",
    "kind": "Job",
    "spec": {
        "template": {
            "spec": {
                "containers": [
                    {
                        "name": "flow",
                        "command": ["tini", "-g", "--"],
                    }
                ],
                "nodeSelector": {
                    "kubernetes.io/role": "agent",
                    "beta.kubernetes.io/os": "linux",
                    "type": "virtual-kubelet",
                },
                "tolerations": [
                    {"key": "virtual-kubelet.io/provider", "operator": "Exists"},
                    {"key": "azure.com/aci", "effect": "NoSchedule"},
                ],
                "imagePullSecrets": [
                    {"name": "regcred"},
                ],
            },
        }
    },
}