$ microk8s config >.kube/config  を実行しておかないと、次のようなエラーとなる。
The connection to the server localhost:8080 was refused - did you specify the right host or port?

#helmをmake
git clone https://github.com/helm/helm.git
cd helm
#ここでmakeすると go　が欠落していてエラー snapでgoをインストール
sudo snap install go --classic
make
sudo make install

kubectl create namespace helm-test
namespace/helm-test created

mars@mars-VirtualBox:~$ helm install test bitnami/wordpress --namespace helm-test 
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /home/mars/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /home/mars/.kube/config
NAME: test
LAST DEPLOYED: Tue Jun 22 19:46:16 2021
NAMESPACE: helm-test
STATUS: deployed
REVISION: 1
NOTES:
** Please be patient while the chart is being deployed **
Your WordPress site can be accessed through the following DNS name from within your cluster:
    test-wordpress.helm-test.svc.cluster.local (port 80)
To access your WordPress site from outside the cluster follow the steps below:
1. Get the WordPress URL by running these commands:
  NOTE: It may take a few minutes for the LoadBalancer IP to be available.
        Watch the status with: 'kubectl get svc --namespace helm-test -w test-wordpress'
   export SERVICE_IP=$(kubectl get svc --namespace helm-test test-wordpress --template "{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}")
   echo "WordPress URL: http://$SERVICE_IP/"
   echo "WordPress Admin URL: http://$SERVICE_IP/admin"

2. Open a browser and access WordPress using the obtained URL.
3. Login with the following credentials below to see your blog:
  echo Username: user
  echo Password: $(kubectl get secret --namespace helm-test test-wordpress -o jsonpath="{.data.wordpress-password}" | base64 --decode)

helm list -n helm-test

WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /home/mars/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /home/mars/.kube/config
NAME	NAMESPACE	REVISION	UPDATED                                	STATUS  	CHART            	APP VERSION
test	helm-test	1       	2021-06-22 19:46:16.598835081 +0900 JST	deployed	wordpress-11.0.16	5.7.2      

$  kubectl get po -n helm-test
NAME                             READY   STATUS    RESTARTS   AGE
test-wordpress-8d8bb84b6-m5b5j   0/1     Running   0          87s
test-mariadb-0                   1/1     Running   0          87s