Helm 执行资源的顺序是什么？

妖狐艹你老母 2023-02-12 13:24 254阅读 0赞

我一直很好奇 “Helm 执行资源的顺序是什么？”

单纯看 Chart 里面的内容完全看不出来，例如：[wordpress][]  
![在这里插入图片描述][20200526123007259.png]  
直到今天才去搜了搜，发现下面的内容：

> [helm-install-in-certain-order][]

通过上面这篇内容，找到了 Helm2 和 Helm3 的执行和卸载顺序：

*  Helm2: [kind\_sorter.go][kind_sorter.go]
 *  Helm3: [kind\_sorter.go][kind_sorter.go 1]

在 Helm3 中的执行顺序定义代码如下：

// InstallOrder is the order in which manifests should be installed (by Kind).
    //
    // Those occurring earlier in the list get installed before those occurring later in the list.
    var InstallOrder KindSortOrder = []string{ 
    	"Namespace",
    	"NetworkPolicy",
    	"ResourceQuota",
    	"LimitRange",
    	"PodSecurityPolicy",
    	"PodDisruptionBudget",
    	"Secret",
    	"ConfigMap",
    	"StorageClass",
    	"PersistentVolume",
    	"PersistentVolumeClaim",
    	"ServiceAccount",
    	"CustomResourceDefinition",
    	"ClusterRole",
    	"ClusterRoleList",
    	"ClusterRoleBinding",
    	"ClusterRoleBindingList",
    	"Role",
    	"RoleList",
    	"RoleBinding",
    	"RoleBindingList",
    	"Service",
    	"DaemonSet",
    	"Pod",
    	"ReplicationController",
    	"ReplicaSet",
    	"Deployment",
    	"HorizontalPodAutoscaler",
    	"StatefulSet",
    	"Job",
    	"CronJob",
    	"Ingress",
    	"APIService",
    }

Helm 不是按照文件的某个顺序来执行的，而是根据文件内容的 `Kind`，按照定义的顺序执行的，上面的执行顺序基本上和类型间的使用（依赖）顺序有一定关联。

想要控制某些顺序时可以看看 [Chart Hooks][]。

[wordpress]: https://github.com/helm/charts/blob/master/stable/wordpress
[20200526123007259.png]: https://img-blog.csdnimg.cn/20200526123007259.png
[helm-install-in-certain-order]: https://stackoverflow.com/questions/51957676/helm-install-in-certain-order
[kind_sorter.go]: https://github.com/helm/helm/blob/release-2.10/pkg/tiller/kind_sorter.go#L29
[kind_sorter.go 1]: https://github.com/helm/helm/blob/release-3.0/pkg/releaseutil/kind_sorter.go
[Chart Hooks]: https://helm.sh/docs/topics/charts_hooks/