K8s应用程序使用Helm安装后不会显示在Helm列表表中。

huangapple
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英文:

K8s app installed using Helm does not show up in Helm list table

问题

我正在尝试使用一个简单的nginx图表来学习Helm，该图表创建一个单独的Pod和Service。

我想将其安装到指定的命名空间（在这种情况下为"dev"）。

我的图表包括两个模板，一个用于部署以创建Pod，另一个用于Service以映射端口到容器。

deployment.yaml

  1. apiVersion: apps/v1
  2. kind: Deployment
  3. metadata:
  4.   name: {{ include "nginx.fullname" . }}
  5.   namespace: {{ .Release.Namespace | quote }}
  6.   labels:
  7.     {{- include "nginx.labels" . | nindent 4 }}
  8. spec:
  9.   replicas: {{ .Values.replicaCount | default 1 }}
  10.   selector:
  11.     matchLabels:
  12.       {{- include "nginx.selectorLabels" . | nindent 6 }}
  13.   template:
  14.     metadata:
  15.       {{- with .Values.podAnnotations }}
  16.       annotations:
  17.         {{- toYaml . | nindent 8 }}
  18.       {{- end }}
  19.       labels:
  20.         {{- include "nginx.selectorLabels" . | nindent 8 }}
  21.     spec:
  22.       containers:
  23.         - name: {{ .Chart.Name }}
  24.           securityContext:
  25.             {{- toYaml .Values.securityContext | nindent 12 }}
  26.           image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
  27.           imagePullPolicy: {{ .Values.image.pullPolicy }}
  28.           ports:
  29.             - name: http
  30.               containerPort: {{ .Values.service.containerport }}
  31.               protocol: TCP
  32.           livenessProbe:
  33.             httpGet:
  34.               path: /
  35.               port: http
  36.           readinessProbe:
  37.             httpGet:
  38.               path: /
  39.               port: http

service.yaml

  1. apiVersion: v1
  2. kind: Service
  3. metadata:
  4.   name: {{ include "nginx.fullname" . }}
  5.   namespace: {{ .Release.Namespace | quote }}
  6.   labels:
  7.     {{- include "nginx.labels" . | nindent 4 }}
  8. spec:
  9.   type: {{ .Values.service.type }}
  10.   ports:
  11.     - port: {{ .Values.service.port }}
  12.       nodePort:  {{ .Values.service.nodePort }}
  13.       protocol: TCP
  14.       name: http
  15.   selector:
  16.     {{- include "nginx.selectorLabels" . | nindent 4 }}

而values文件如下：

values-dev.yaml

  1. replicaCount: 1
  3. image:
  4.   repository: nginx
  5.   pullPolicy: IfNotPresent
  6.   # 覆盖默认的图像标签，其默认值为图表的appVersion。
  7.   tag: ""
  9. service:
  10.   type: NodePort
  11.   containerport: 80
  12.   port: 80
  13.   nodePort: 31010
  15. resources:
  16.   limits:
  17.     memory: 256Mi
  18.     cpu: "250m"
  19.   requests:
  20.     memory: 128Mi
  21.     cpu: "80m"

当我运行我的Helm命令时：

  1. helm install dev-nginx ./ --namespace dev --create-namespace --values values-dev.yaml

Helm似乎正在将所有必需的内容安装到正确的命名空间中。

  1. NAME: dev-nginx
  2. LAST DEPLOYED: Wed Jun 14 18:22:03 2023
  3. NAMESPACE: dev
  4. STATUS: deployed
  5. REVISION: 1
  6. TEST SUITE: None

但当我运行 helm list 时，安装不会显示在表格中。

  1. helm list
  2. NAME    NAMESPACE   REVISION    UPDATED STATUS  CHART       APP VERSION

如果我使用 kubectl 进行验证，我可以看到所有内容。

  1. kubectl get all -n dev
  2. NAME                             READY   STATUS    RESTARTS   AGE
  3. pod/dev-nginx-5bff4b9659-mxmrb   1/1     Running   0          2m27s
  5. NAME                TYPE       CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
  6. service/dev-nginx   NodePort   10.109.251.249   <none>        80:31010/TCP   2m27s
  8. NAME                        READY   UP-TO-DATE   AVAILABLE   AGE
  9. deployment.apps/dev-nginx   1/1     1            1           2m27s
  11. NAME                                   DESIRED   CURRENT   READY   AGE
  12. replicaset.apps/dev-nginx-5bff4b9659   1         1         1       2m27s

如果我不尝试控制命名空间，允许Helm部署到默认的命名空间，安装会显示在 helm install 表格中。

使用Helm安装到自定义命名空间是可能的，我只是犯了一个错误吗？

非常感谢。

英文:

I'm trying to learn Helm using a simple nginx chart that creates a single pod and service.

I want to install this into a specified namespace (dev in this case).

My chart comprises x2 templates, x1 for the deployment to create the pod, and x1 for a service to map a port to the container.

deployment.yaml

  1. apiVersion: apps/v1
  2. kind: Deployment
  3. metadata:
  4.   name: {{ include &quot;nginx.fullname&quot; . }}
  5.   namespace: {{ .Release.Namespace | quote }}
  6.   labels:
  7.     {{- include &quot;nginx.labels&quot; . | nindent 4 }}
  8. spec:
  9.   replicas: {{ .Values.replicaCount | default 1 }}
  10.   selector:
  11.     matchLabels:
  12.       {{- include &quot;nginx.selectorLabels&quot; . | nindent 6 }}
  13.   template:
  14.     metadata:
  15.       {{- with .Values.podAnnotations }}
  16.       annotations:
  17.         {{- toYaml . | nindent 8 }}
  18.       {{- end }}
  19.       labels:
  20.         {{- include &quot;nginx.selectorLabels&quot; . | nindent 8 }}
  21.     spec:
  22.       containers:
  23.         - name: {{ .Chart.Name }}
  24.           securityContext:
  25.             {{- toYaml .Values.securityContext | nindent 12 }}
  26.           image: &quot;{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}&quot;
  27.           imagePullPolicy: {{ .Values.image.pullPolicy }}
  28.           ports:
  29.             - name: http
  30.               containerPort: {{ .Values.service.containerport }}
  31.               protocol: TCP
  32.           livenessProbe:
  33.             httpGet:
  34.               path: /
  35.               port: http
  36.           readinessProbe:
  37.             httpGet:
  38.               path: /
  39.               port: http

service.yaml

  1. apiVersion: v1
  2. kind: Service
  3. metadata:
  4.   name: {{ include &quot;nginx.fullname&quot; . }}
  5.   namespace: {{ .Release.Namespace | quote }}
  6.   labels:
  7.     {{- include &quot;nginx.labels&quot; . | nindent 4 }}
  8. spec:
  9.   type: {{ .Values.service.type }}
  10.   ports:
  11.     - port: {{ .Values.service.port }}
  12.       nodePort:  {{ .Values.service.nodePort }}
  13.       protocol: TCP
  14.       name: http
  15.   selector:
  16.     {{- include &quot;nginx.selectorLabels&quot; . | nindent 4 }}

And the values file looks like this:

values-dev.yaml

  1. replicaCount: 1
  3. image:
  4.   repository: nginx
  5.   pullPolicy: IfNotPresent
  6.   # Overrides the image tag whose default is the chart appVersion.
  7.   tag: &quot;&quot;
  9. service:
  10.   type: NodePort
  11.   containerport: 80
  12.   port: 80
  13.   nodePort: 31010
  15. resources:
  16.   limits:
  17.     memory: 256Mi
  18.     cpu: &quot;250m&quot;
  19.   requests:
  20.     memory: 128Mi
  21.     cpu: &quot;80m&quot;

When I run my Helm command:

helm install dev-nginx ./ --namespace dev --create-namespace --values values-dev.yaml

Helm does seem to be installing everything required into the right namespace.

  1. NAME: dev-nginx
  2. LAST DEPLOYED: Wed Jun 14 18:22:03 2023
  3. NAMESPACE: dev
  4. STATUS: deployed
  5. REVISION: 1
  6. TEST SUITE: None

But when I run a helm list the installation does not show up in the table.

  1. helm list
  2. NAME	NAMESPACE	REVISION	UPDATED	STATUS	CHART	APP VERSION

I can see everything if I verify using kubectl.

  1. k get all -n dev
  2. NAME                             READY   STATUS    RESTARTS   AGE
  3. pod/dev-nginx-5bff4b9659-mxmrb   1/1     Running   0          2m27s
  5. NAME                TYPE       CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
  6. service/dev-nginx   NodePort   10.109.251.249   &lt;none&gt;        80:31010/TCP   2m27s
  8. NAME                        READY   UP-TO-DATE   AVAILABLE   AGE
  9. deployment.apps/dev-nginx   1/1     1            1           2m27s
  11. NAME                                   DESIRED   CURRENT   READY   AGE
  12. replicaset.apps/dev-nginx-5bff4b9659   1         1         1       2m27s

If I don't try to control the namespace and allow Helm to deploy into the 'default' namespace, the install shows up in the helm install table.

Is using Helm to install to a custom namespace possible and I am just making a mistake?

Many thanks

答案1

得分: 0

helm list 命令将显示在 default 命名空间中安装的 Helm 图表，而你将其安装在 dev 命名空间中。

只需运行 helm list -n dev 来显示在 dev 命名空间中的安装，或者运行 helm list -A 来显示所有命名空间中的安装。

英文:

The helm list command will give you the installed helm chart in the default namespace and you installed it in dev namespace.

Just run helm list -n dev to show installations in dev namespace or helm list -A for all namespaces.

huangapple
  • 本文由 发表于 2023年6月15日 01:33:35
  • 转载请务必保留本文链接：https://go.coder-hub.com/76476190.html
  • kubernetes
  • kubernetes-helm
  • namespaces
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