背景说明

Helm可以结合远程仓库对应用进行一键部署

解决方案

应用搜索

  1. [root@cka-master helm]# helm search repo mysql
  2. NAME                                CHART VERSION    APP VERSION    DESCRIPTION                                       
  3. apphub/mysql                        6.8.0            8.0.19         Chart to create a Highly available MySQL cluster  
  4. apphub/mysqldump                    2.6.0            2.4.1          A Helm chart to help backup MySQL databases usi...
  5. apphub/mysqlha                      1.0.0            5.7.13         MySQL cluster with a single master and zero or ...
  6. apphub/prometheus-mysql-exporter    0.5.2            v0.11.0        A Helm chart for prometheus mysql exporter with...
  7. github/mysql                        1.6.8            5.7.30         Fast, reliable, scalable, and easy to use open-...
  8. github/mysqldump                    2.6.2            2.4.1          DEPRECATED! - A Helm chart to help backup MySQL...
  9. github/prometheus-mysql-exporter    0.7.1            v0.11.0        DEPRECATED A Helm chart for prometheus mysql ex...
  10. apphub/percona                      1.2.0            5.7.17         free, fully compatible, enhanced, open source d...
  11. apphub/percona-xtradb-cluster       1.0.3            5.7.19         free, fully compatible, enhanced, open source d...
  12. apphub/phpmyadmin                   4.2.12           5.0.1          phpMyAdmin is an mysql administration frontend    
  13. github/percona                      1.2.2            5.7.26         free, fully compatible, enhanced, open source d...
  14. github/percona-xtradb-cluster       1.0.7            5.7.19         free, fully compatible, enhanced, open source d...
  15. github/phpmyadmin                   4.3.5            5.0.1          DEPRECATED phpMyAdmin is an mysql administratio...
  16. apphub/mariadb                      7.3.9            10.3.22        Fast, reliable, scalable, and easy to use open-...
  17. apphub/mariadb-galera               0.8.1            10.4.12        MariaDB Galera is a multi-master database clust...
  18. github/gcloud-sqlproxy              0.6.1            1.11           DEPRECATED Google Cloud SQL Proxy                 
  19. github/mariadb                      7.3.14           10.3.22        DEPRECATED Fast, reliable, scalable, and easy t...

应用安装

  1. [root@cka-master helm]# helm install mysql  apphub/mysql
  2. NAME: mysql
  3. LAST DEPLOYED: Tue Mar 15 15:17:18 2022
  4. NAMESPACE: default
  5. STATUS: deployed
  6. REVISION: 1
  7. TEST SUITE: None
  8. NOTES:
  9. Please be patient while the chart is being deployed
  11. Tip:
  13.   Watch the deployment status using the command: kubectl get pods -w --namespace default
  15. Services:
  17.   echo Master: mysql.default.svc.cluster.local:3306
  18.   echo Slave:  mysql-slave.default.svc.cluster.local:3306
  20. Administrator credentials:
  22.   echo Username: root
  23.   echo Password : $(kubectl get secret --namespace default mysql -o jsonpath="{.data.mysql-root-password}" | base64 --decode)
  25. To connect to your database:
  27.   1. Run a pod that you can use as a client:
  29.       kubectl run mysql-client --rm --tty -i --restart='Never' --image  docker.io/bitnami/mysql:8.0.19-debian-10-r0 --namespace default --command -- bash
  31.   2. To connect to master service (read/write):
  33.       mysql -h mysql.default.svc.cluster.local -uroot -p my_database
  35.   3. To connect to slave service (read-only):
  37.       mysql -h mysql-slave.default.svc.cluster.local -uroot -p my_database
  39. To upgrade this helm chart:
  41.   1. Obtain the password as described on the 'Administrator credentials' section and set the 'root.password' parameter as shown below:
  43.       ROOT_PASSWORD=$(kubectl get secret --namespace default mysql -o jsonpath="{.data.mysql-root-password}" | base64 --decode)
  44.       helm upgrade mysql bitnami/mysql --set root.password=$ROOT_PASSWORD

应用列表

  1. [root@cka-master helm]# helm list
  2. NAME     NAMESPACE    REVISION    UPDATED                                    STATUS      CHART          APP VERSION
  3. mysql    default      1           2022-03-15 15:17:18.165166396 +0800 CST    deployed    mysql-6.8.0    8.0.19     
  4. [root@cka-master helm]# 
  5. [root@cka-master helm]# helm ls
  6. NAME     NAMESPACE    REVISION    UPDATED                                    STATUS      CHART          APP VERSION
  7. mysql    default      1           2022-03-15 15:17:18.165166396 +0800 CST    deployed    mysql-6.8.0    8.0.19     
  8. [root@cka-master helm]#

应用状态

  1. [root@cka-master helm]# helm status mysql
  2. [root@cka-master helm]# kubectl get pod
  3. NAME             READY   STATUS    RESTARTS   AGE
  4. myapp            1/1     Running   0          34h
  5. mysql-master-0   0/1     Pending   0          6m10s
  6. mysql-slave-0    0/1     Pending   0          6m10s
  7. [root@cka-master helm]#