[英]Kubernetes Helm Chart - Debugging
我找不到描述這些錯誤的好信息:
[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]
我還是Helm的新手。 我建立了兩個工作表,它們與該模板相似,並且即使代碼沒有太大不同,也沒有這些錯誤。 我認為可能存在某種我不注意到的格式化錯誤。 要么是因為類型不同(其他是Pod,這是StatefulSet)。
它引用的YAML文件在這里:
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}}
有人能夠a)向我指出正確的方向,以找出如何實施spec.template和spec.serviceName必填字段,b)了解為何“容器”字段無效,和/或c)提及有什么工具可以幫助調試Helm圖表嗎? 我嘗試了'helm lint'和'--debug'標志,但是'helm lint'沒有顯示錯誤,並且標志輸出顯示有上面的錯誤。
錯誤是否也可能來自其他文件?
StatefulSets對象的結構與Pod不同。 您需要稍微修改yaml文件:
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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