Kubernetes舵图-调试 [英] Kubernetes Helm Chart - Debugging

问题描述

我找不到描述这些错误的好信息:

I'm unable to find good information describing these errors:

[sarah@localhost helm] helm install statefulset --name statefulset --debug
[debug] Created tunnel using local port: '33172'

[debug] SERVER: "localhost:33172"

[debug] Original chart version: ""
[debug] CHART PATH: /home/helm/statefulset/

Error: error validating "": error validating data: [field spec.template for v1beta1.StatefulSetSpec is required, field spec.serviceName for v1beta1.StatefulSetSpec is required, found invalid field containers for v1beta1.StatefulSetSpec]

我还是Helm的新手.我建立了两个工作表，它们与该模板相似，并且即使这些代码没有太大区别，也没有这些错误.我在想可能会出现某种我没有注意到的格式化错误.要么是因为类型不同(其他是Pod，这是StatefulSet).

I'm still new to Helm; I've built two working charts that were similar to this template and didn't have these errors, even though the code isn't much different. I'm thinking there might be some kind of formatting error that I'm not noticing. Either that, or it's due to the different type (the others were Pods, this is StatefulSet).

它引用的YAML文件在这里:

The YAML file it's referencing is here:

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: "{{.Values.PrimaryName}}"
  labels:
    name: "{{.Values.PrimaryName}}"
    app: "{{.Values.PrimaryName}}"
    chart: "{{.Chart.Name}}-{{.Chart.Version}}"
  annotations:
    "helm.sh/created": {{.Release.Time.Seconds | quote }}
spec:
  #serviceAccount: "{{.Values.PrimaryName}}-sa"
  containers:
  - name: {{.Values.ContainerName}}
    image: "{{.Values.PostgresImage}}"
    ports:
    - containerPort: 5432
      protocol: TCP
      name: postgres
    resources:
      requests:
        cpu: {{default "100m" .Values.Cpu}}
        memory: {{default "100M" .Values.Memory}}
    env:
    - name: PGHOST
      value: /tmp
    - name: PG_PRIMARY_USER
      value: primaryuser
    - name: PG_MODE
      value: set
    - name: PG_PRIMARY_PORT
      value: "5432"
    - name: PG_PRIMARY_PASSWORD
      value: "{{.Values.PrimaryPassword}}"
    - name: PG_USER
      value: testuser
    - name: PG_PASSWORD
      value: "{{.Values.UserPassword}}"
    - name: PG_DATABASE
      value: userdb
    - name: PG_ROOT_PASSWORD
      value: "{{.Values.RootPassword}}"
    volumeMounts:
    - name: pgdata
      mountPath: "/pgdata"
      readOnly: false
    volumes:
    - name: pgdata
      persistentVolumeClaim:
       claimName: {{.Values.PVCName}}

有人可以a)指引我正确的方向，以找出如何实现spec.template和spec.serviceName必填字段，b)了解为什么容器"字段无效，和/或c)提到可以帮助调试Helm图表的任何工具吗?我已经尝试过'helm lint'和'--debug'标志，但是'helm lint'没有显示错误，并且标志输出显示为上面的错误.

Would someone be able to a) point me in the right direction to find out how to implement the spec.template and spec.serviceName required fields, b) understand why the field 'containers' is invalid, and/or c) give mention of any tool that can help debug Helm charts? I've attempted 'helm lint' and the '--debug' flag but 'helm lint' shows no errors, and the flag output is shown with the errors above.

错误是否也可能来自其他文件?

Is it possible the errors are coming from a different file, also?

推荐答案

StatefulSets 对象的结构与Pod不同.您需要稍微修改yaml文件:

StatefulSets objects has different structure than Pods are. You need to modify your yaml file a little:

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: "{{.Values.PrimaryName}}"
  labels:
    name: "{{.Values.PrimaryName}}"
    app: "{{.Values.PrimaryName}}"
    chart: "{{.Chart.Name}}-{{.Chart.Version}}"
  annotations:
    "helm.sh/created": {{.Release.Time.Seconds | quote }}
spec:
  selector:
    matchLabels:
      app: "" # has to match .spec.template.metadata.labels
  serviceName: "" # put your serviceName here
  replicas: 1 # by default is 1
  template:
    metadata:
      labels:
        app: "" # has to match .spec.selector.matchLabels
    spec:
      terminationGracePeriodSeconds: 10
      containers:
      - name: {{.Values.ContainerName}}
        image: "{{.Values.PostgresImage}}"
        ports: 
        - containerPort: 5432
          protocol: TCP
          name: postgres
        resources:
          requests:  
            cpu: {{default "100m" .Values.Cpu}}
            memory: {{default "100M" .Values.Memory}}
        env:
        - name: PGHOST
          value: /tmp
        - name: PG_PRIMARY_USER
          value: primaryuser
        - name: PG_MODE
          value: set
        - name: PG_PRIMARY_PORT
          value: "5432"
        - name: PG_PRIMARY_PASSWORD
          value: "{{.Values.PrimaryPassword}}"
        - name: PG_USER
          value: testuser
        - name: PG_PASSWORD
          value: "{{.Values.UserPassword}}
        - name: PG_DATABASE
          value: userdb
        - name: PG_ROOT_PASSWORD
          value: "{{.Values.RootPassword}}"
        volumeMounts:
        - name: pgdata
          mountPath: "/pgdata"
          readOnly: false
      volumes:
      - name: pgdata
        persistentVolumeClaim:
          claimName: {{.Values.PVCName}}

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