helm部署相关服务过程中问题记录

在学习helm部署相关服务过程中出现一些相关问题，自己记录并供大家一起学习！！！

【问题1】部署helm 获取软件包失败

在通过wget https://storage.googleapis.com/kubernetes-helm/helm-v2.13.1-linux-amd64.tar.gz文件过程发现无法获取，提示403 ：Forbidden

可以通过如下方式获取

链接：https://pan.baidu.com/s/17OnWVaAO433llgOy-Oopbg
提取码：dptr

下载完成后进行安装

tar -zxvf helm-v2.13.1-linux-amd64.tar.gz
cd linux-amd64/
cp helm /usr/local/bin/

【问题2】helm 部署tiller时无镜像文件

镜像文件：helm-tiller.tar

链接：https://pan.baidu.com/s/1VN0BXo1agubrcNTgW6UXWg
提取码：38qi

下载后导入到容器中

docker load -i helm-tiller.tar

【问题3】 helm init 提示报错Error: error installing: the server could not find the requested resource

因为 1.16.0 版本之后 Deployment 的apiVersion的 endpoint 发生变化，所以可以通过以下方式：方式1、修改文件内容，实现兼容；

方式2、安装更高版本，比如v2.17.0 或 v3.5.2

方式1解决：

将helm配置导出到tiller.yaml

helm init --output yaml > tiller.yaml

编辑tiller.yaml

将extensions/v1beta1修改为 apiVersion: apps/v1

在spec的 strategy: {} 后面新增
selector:
matchLabels:
app: helm
name: tiller

---
apiVersion: apps/v1      ###修改
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: helm
    name: tiller
  name: tiller-deploy
  namespace: kube-system
spec:
  replicas: 1
  strategy: {}
  selector:             ###新增
    matchLabels:        ###新增
      app: helm         ###新增
      name: tiller      ###新增
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: helm
        name: tiller

完成后运行yaml文件

kubectl apply -f tiller.yaml

[root@k8s-master01 helm]# kubectl apply -f tiller.yaml  
deployment.apps/tiller-deploy created
service/tiller-deploy created
[root@k8s-master01 helm]# 
[root@k8s-master01 helm]# kubectl get pod -A -owide | grep tiller
kube-system   tiller-deploy-56b4cf59c4-pjb2x             1/1     Running   0          10m   10.2.85.193      k8s-node01     <none>           <none>
[root@k8s-master01 helm]# 
[root@k8s-master01 helm]# 
[root@k8s-master01 helm]# 
[root@k8s-master01 helm]# kubectl get deployment -n kube-system
NAME                      READY   UP-TO-DATE   AVAILABLE   AGE
calico-kube-controllers   1/1     1            1           22m
coredns                   2/2     2            2           35m
tiller-deploy             1/1     1            1           10m
[root@k8s-master01 helm]# 
[root@k8s-master01 helm]# kubectl get service -n kube-system
NAME            TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)                  AGE
kube-dns        ClusterIP   10.96.0.10     <none>        53/UDP,53/TCP,9153/TCP   36m
tiller-deploy   ClusterIP   10.100.90.19   <none>        44134/TCP                11m

【问题4】helm ls 提示Error: configmaps is forbidden: User "system:serviceaccount:kube-system:default" cannot list resource "configmaps" in API group "" in the namespace "kube-system"

[root@k8s-master01 hello-world]# helm ls
Error: configmaps is forbidden: User "system:serviceaccount:kube-system:default" cannot list resource "configmaps" in API group "" in the namespace "kube-system"

执行如下命令：

kubectl create serviceaccount --namespace kube-system tiller
kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
kubectl patch deploy --namespace kube-system tiller-deploy -p '{"spec":{"template":{"spec":{"serviceAccount":"tiller"}}}}'      
helm init --service-account tiller --upgrade

【问题5】使用helm 创建tiller-deploy 异常，Pod提示NetworkPlugin cni failed to set up .. network:open/run/flannel/subnet.env:nosuchfileordirectory

具体可以参考Pod提示NetworkPlugin cni failed to set up .. network:open/run/flannel/subnet.env:nosuchfileordirectory_好好学习之乘风破浪的博客-CSDN博客

【问题6】helm 部署dashborad 中 helm fetch stable/kubernetes-dashborad异常

用helm 部署dashborad 中使用fetch下载dashboard

helm fetch stable/kubernetes-dashborad

Error: no cached repo found. (try 'helm repo update'). open /root/.helm/repository/cache/stable-index.yaml: no such file or directory

则需要更新一下helm的仓库源

helm repo update

如果在更新仓库源中出现错误：

Failed to fetch https://kubernetes-charts.storage.googleapis.com/index.yaml : 403 Forbidden

更新为阿里的地址

helm repo remove stable
helm repo add stable https://charts.helm.sh/stable
helm repo update