使用 Helm 访问 k8s configmap 中的配置文件时数据为空
Data is empty when accessing config file in k8s configmap with Helm
我正在尝试在我的部署中使用 configmap 和 helm 图表。现在似乎可以根据此处的文档使用 Helm 访问文件:https://github.com/helm/helm/blob/master/docs/chart_template_guide/accessing_files.md
这是我的部署:
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: "{{ template "service.fullname" . }}"
labels:
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
spec:
replicas: {{ .Values.replicaCount }}
template:
metadata:
labels:
app: "{{ template "service.fullname" . }}"
spec:
containers:
- name: "{{ .Chart.Name }}"
image: "{{ .Values.registryHost }}/{{ .Values.userNamespace }}/{{ .Values.projectName }}/{{ .Values.serviceName }}:{{.Chart.Version}}"
volumeMounts:
- name: {{ .Values.configmapName}}configmap-volume
mountPath: /app/config
ports:
- containerPort: 80
name: http
livenessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
readinessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
volumes:
- name: {{ .Values.configmapName}}configmap-volume
configMap:
name: "{{ .Values.configmapName}}-configmap"
我的 configmap 正在访问一个配置文件。这是配置图:
apiVersion: v1
kind: ConfigMap
metadata:
name: "{{ .Values.configmapName}}-configmap"
labels:
app: "{{ .Values.configmapName}}"
data:
{{ .Files.Get "files/{{ .Values.configmapName}}-config.json" | indent 2}}
图表目录如下所示:
files/
--runtime-config.json
templates/
--configmap.yaml
--deployment.yaml
--ingress.yaml
--service.yaml
chart.value
vaues.yaml
这就是我的 运行time-confi.json 文件的样子:
{
"GameModeConfiguration": {
"command": "xx",
"modeId": 10,
"sessionId": 11
}
}
问题是,当我安装我的图表时(即使使用 dry-运行 模式),我的 configmap 的数据是空的。它不会将配置文件中的数据添加到我的 configmap 声明中。这是我干的时候的样子-运行:
---
apiVersion: v1
kind: ConfigMap
metadata:
name: "runtime-configmap"
labels:
app: "runtime"
data:
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: "whimsical-otter-runtime-service"
labels:
chart: "runtime-service-unknown/version"
spec:
replicas: 1
template:
metadata:
labels:
app: "whimsical-otter-runtime-service"
spec:
containers:
- name: "runtime-service"
image: "gcr.io/xxx-dev/xxx/runtime_service:unknown/version"
volumeMounts:
- name: runtimeconfigmap-volume
mountPath: /app/config
ports:
- containerPort: 80
name: http
resources:
limits:
cpu: 100m
memory: 100Mi
requests:
cpu: 100m
memory: 100Mi
livenessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
readinessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
volumes:
- name: runtimeconfigmap-volume
configMap:
name: "runtime-configmap"
---
我做错了什么没有得到数据?
字符串内变量的替换不起作用:
{{ .Files.Get "files/{{ .Values.configmapName}}-config.json" | indent 2}}
但是你可以像这样使用 printf
函数生成一个字符串:
{{ .Files.Get (printf "files/%s-config.json" .Values.configmapName) | indent 2 }}
除了@adebasi 指出的语法问题,您还需要将此代码设置在一个密钥中以获得有效的 configmap yaml:
apiVersion: v1
kind: ConfigMap
metadata:
name: "{{ .Values.configmapName}}-configmap"
labels:
app: "{{ .Values.configmapName}}"
data:
my-file: |
{{ .Files.Get (printf "files/%s-config.json" .Values.configmapName) | indent 4}}
或者您可以使用方便的 configmap 助手:
apiVersion: v1
kind: ConfigMap
metadata:
name: "{{ .Values.configmapName}}-configmap"
labels:
app: "{{ .Values.configmapName}}"
data:
{{ (.Files.Glob "files/*").AsConfig | indent 2 }}
我正在尝试在我的部署中使用 configmap 和 helm 图表。现在似乎可以根据此处的文档使用 Helm 访问文件:https://github.com/helm/helm/blob/master/docs/chart_template_guide/accessing_files.md
这是我的部署:
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: "{{ template "service.fullname" . }}"
labels:
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
spec:
replicas: {{ .Values.replicaCount }}
template:
metadata:
labels:
app: "{{ template "service.fullname" . }}"
spec:
containers:
- name: "{{ .Chart.Name }}"
image: "{{ .Values.registryHost }}/{{ .Values.userNamespace }}/{{ .Values.projectName }}/{{ .Values.serviceName }}:{{.Chart.Version}}"
volumeMounts:
- name: {{ .Values.configmapName}}configmap-volume
mountPath: /app/config
ports:
- containerPort: 80
name: http
livenessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
readinessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
volumes:
- name: {{ .Values.configmapName}}configmap-volume
configMap:
name: "{{ .Values.configmapName}}-configmap"
我的 configmap 正在访问一个配置文件。这是配置图:
apiVersion: v1
kind: ConfigMap
metadata:
name: "{{ .Values.configmapName}}-configmap"
labels:
app: "{{ .Values.configmapName}}"
data:
{{ .Files.Get "files/{{ .Values.configmapName}}-config.json" | indent 2}}
图表目录如下所示:
files/
--runtime-config.json
templates/
--configmap.yaml
--deployment.yaml
--ingress.yaml
--service.yaml
chart.value
vaues.yaml
这就是我的 运行time-confi.json 文件的样子:
{
"GameModeConfiguration": {
"command": "xx",
"modeId": 10,
"sessionId": 11
}
}
问题是,当我安装我的图表时(即使使用 dry-运行 模式),我的 configmap 的数据是空的。它不会将配置文件中的数据添加到我的 configmap 声明中。这是我干的时候的样子-运行:
---
apiVersion: v1
kind: ConfigMap
metadata:
name: "runtime-configmap"
labels:
app: "runtime"
data:
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: "whimsical-otter-runtime-service"
labels:
chart: "runtime-service-unknown/version"
spec:
replicas: 1
template:
metadata:
labels:
app: "whimsical-otter-runtime-service"
spec:
containers:
- name: "runtime-service"
image: "gcr.io/xxx-dev/xxx/runtime_service:unknown/version"
volumeMounts:
- name: runtimeconfigmap-volume
mountPath: /app/config
ports:
- containerPort: 80
name: http
resources:
limits:
cpu: 100m
memory: 100Mi
requests:
cpu: 100m
memory: 100Mi
livenessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
readinessProbe:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
timeoutSeconds: 5
volumes:
- name: runtimeconfigmap-volume
configMap:
name: "runtime-configmap"
---
我做错了什么没有得到数据?
字符串内变量的替换不起作用:
{{ .Files.Get "files/{{ .Values.configmapName}}-config.json" | indent 2}}
但是你可以像这样使用 printf
函数生成一个字符串:
{{ .Files.Get (printf "files/%s-config.json" .Values.configmapName) | indent 2 }}
除了@adebasi 指出的语法问题,您还需要将此代码设置在一个密钥中以获得有效的 configmap yaml:
apiVersion: v1
kind: ConfigMap
metadata:
name: "{{ .Values.configmapName}}-configmap"
labels:
app: "{{ .Values.configmapName}}"
data:
my-file: |
{{ .Files.Get (printf "files/%s-config.json" .Values.configmapName) | indent 4}}
或者您可以使用方便的 configmap 助手:
apiVersion: v1
kind: ConfigMap
metadata:
name: "{{ .Values.configmapName}}-configmap"
labels:
app: "{{ .Values.configmapName}}"
data:
{{ (.Files.Glob "files/*").AsConfig | indent 2 }}