MicroK8s : Enable Helm32023/06/22 |
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Enable Helm3 add-on to deploy apllications from Helm Charts.
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| [1] | Enable built-in Helm3 add-on on primary Node. |
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root@dlp:~# microk8s enable helm3 Infer repository core for addon helm3 Addon core/helm3 is already enabledroot@dlp:~# microk8s helm3 version
version.BuildInfo{Version:"v3.9.1+unreleased", GitCommit:"52c2c02c75248ea9e5752f8dc92acad94bc7ee73", GitTreeState:"clean", GoVersion:"go1.20.4"}
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| [2] | Basic Usage of Helm3. |
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# search charts by words in Helm Hub root@dlp:~# microk8s helm3 search hub wordpress URL CHART VERSION APP VERSION DESCRIPTION https://artifacthub.io/packages/helm/kube-wordp... 0.1.0 1.1 this is my wordpress package https://artifacthub.io/packages/helm/bitnami-ak... 15.2.13 6.1.0 WordPress is the world's most popular blogging ... https://artifacthub.io/packages/helm/shubham-wo... 0.1.0 1.16.0 A Helm chart for Kubernetes ..... ..... # add repository root@dlp:~# microk8s helm3 repo add bitnami https://charts.bitnami.com/bitnami "bitnami" has been added to your repositories # display added repositories root@dlp:~# microk8s helm3 repo list NAME URL bitnami https://charts.bitnami.com/bitnami # search charts by words in repository root@dlp:~# microk8s helm3 search repo bitnami NAME CHART VERSION APP VERSION DESCRIPTION bitnami/airflow 14.2.5 2.6.1 Apache Airflow is a tool to express and execute... bitnami/apache 9.6.3 2.4.57 Apache HTTP Server is an open-source HTTP serve... bitnami/apisix 2.0.0 3.3.0 Apache APISIX is high-performance, real-time AP... bitnami/appsmith 0.3.7 1.9.21 Appsmith is an open source platform for buildin... bitnami/argo-cd 4.7.12 2.7.5 Argo CD is a continuous delivery tool for Kuber... bitnami/argo-workflows 5.3.5 3.4.8 Argo Workflows is meant to orchestrate Kubernet... ..... ..... # display description of a chart # helm show [all|chart|readme|values] [chart name] root@dlp:~# microk8s helm3 show chart bitnami/wordpress annotations: category: CMS licenses: Apache-2.0 apiVersion: v2 appVersion: 6.2.2 dependencies: - condition: memcached.enabled name: memcached repository: oci://registry-1.docker.io/bitnamicharts version: 6.x.x - condition: mariadb.enabled name: mariadb repository: oci://registry-1.docker.io/bitnamicharts version: 12.x.x - name: common repository: oci://registry-1.docker.io/bitnamicharts tags: - bitnami-common version: 2.x.x description: WordPress is the world's most popular blogging and content management platform. Powerful yet simple, everyone from students to global corporations use it to build beautiful, functional websites. home: https://bitnami.com icon: https://bitnami.com/assets/stacks/wordpress/img/wordpress-stack-220x234.png keywords: - application - blog - cms - http - php - web - wordpress maintainers: - name: VMware, Inc. url: https://github.com/bitnami/charts name: wordpress sources: - https://github.com/bitnami/charts/tree/main/bitnami/wordpress version: 16.1.18 # deploy application by specified chart # helm install [any name] [chart name] root@dlp:~# microk8s helm3 install wordpress bitnami/wordpress
NAME: wordpress
LAST DEPLOYED: Thu Jun 22 00:04:06 2023
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
CHART NAME: wordpress
CHART VERSION: 16.1.18
APP VERSION: 6.2.2
** Please be patient while the chart is being deployed **
Your WordPress site can be accessed through the following DNS name from within your cluster:
wordpress.default.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 default -w wordpress'
export SERVICE_IP=$(kubectl get svc --namespace default wordpress --template "{{ range (index .status.loadBalancer.ingress 0) }}{{ . }}{{ end }}")
echo "WordPress URL: http://$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 default wordpress -o jsonpath="{.data.wordpress-password}" | base64 -d)
# display deployed applications root@dlp:~# microk8s helm3 list NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION wordpress default 1 2023-06-22 00:04:06.410829446 -0500 CDT deployed wordpress-16.1.18 6.2.2root@dlp:~# microk8s kubectl get pods NAME READY STATUS RESTARTS AGE wordpress-mariadb-0 0/1 Running 0 55s wordpress-559b788c6b-5b86g 0/1 Running 0 55s # display status of a deployed apprication root@dlp:~# microk8s helm3 status wordpress NAME: wordpress LAST DEPLOYED: Thu Jun 22 00:04:06 2023 NAMESPACE: default STATUS: deployed REVISION: 1 TEST SUITE: None NOTES: CHART NAME: wordpress CHART VERSION: 16.1.18 APP VERSION: 6.2.2 ..... .....root@dlp:~# microk8s kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.152.183.1 <none> 443/TCP 94m wordpress-mariadb ClusterIP 10.152.183.104 <none> 3306/TCP 6m30s wordpress LoadBalancer 10.152.183.243 <pending> 80:32032/TCP,443:30844/TCP 6m30s # uninstall a deployed application root@dlp:~# microk8s helm3 uninstall wordpress release "wordpress" uninstalled |
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