Driver for the database MySQL 5.7 not found about data-center-helm-charts

[errcode1202]

@Forbzy this is a failure on our documentation's part. Jira doesn't actually ship with the MySQL driver and it needs to be supplied manually. We do allude to this in the docs but its easily missed, something that we'll look into addressing. As for getting you up and running, the way to present the driver to each of your Pod's is to first download the driver and add it to a sub-dir (e.g. drivers) of your shared-home volume. You can use the shared-home-browser to do this. Once that is done define the additional library (driver) under additionalLibraries in your values.yaml:

jira:
 additionalLibraries: 
  - volumeName: shared-home
    subDirectory: drivers
    fileName: mysql-driver.jar

These additionalLibraries will then be injected into <Jira-installation-directory>/lib on Pod start.

[Forbzy]

Thanks @errcode1202 below is what I did with the values.yaml to help automate the steps you provided.

    volumes:
      sharedHome:
        persistentVolumeClaim:
          create: true
          storageClassName: hostpath                                                                               
        mountPath: "/var/atlassian/application-data/shared-home"
        nfsPermissionFixer:
          enabled: true
          mountPath: "/shared-home"
          command: |
            mkdir /shared-home/drivers
            apk add dpkg
            rm -rf /shared-home/drivers/mysql-driver.jar
            wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java_8.0.26-1debian10_all.deb
            dpkg-deb -R mysql-connector-java_8.0.26-1debian10_all.deb /tmp/
            cp /tmp/usr/share/java/mysql-connector-java-8.0.26.jar  /shared-home/drivers/mysql-driver.jar
            chown -R 2001:2001 /shared-home
    jira:
      additionalLibraries: 
      - volumeName: shared-home
        subDirectory: drivers
        fileName: mysql-driver.jar

[errcode1202]

Thanks @errcode1202 below is what I did with the values.yaml to help automate the steps you provided.

    volumes:
      sharedHome:
        persistentVolumeClaim:
          create: true
          storageClassName: hostpath                                                                               
        mountPath: "/var/atlassian/application-data/shared-home"
        nfsPermissionFixer:
          enabled: true
          mountPath: "/shared-home"
          command: |
            mkdir /shared-home/drivers
            apk add dpkg
            rm -rf /shared-home/drivers/mysql-driver.jar
            wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java_8.0.26-1debian10_all.deb
            dpkg-deb -R mysql-connector-java_8.0.26-1debian10_all.deb /tmp/
            cp /tmp/usr/share/java/mysql-connector-java-8.0.26.jar  /shared-home/drivers/mysql-driver.jar
            chown -R 2001:2001 /shared-home
    jira:
      additionalLibraries: 
      - volumeName: shared-home
        subDirectory: drivers
        fileName: mysql-driver.jar

@Forbzy thats a great way of doing it too. As you're probably aware, one small implication of this approach is that these commands will be run every-time a new Pod joins the cluster. Because shared-home is a persisted volume once the driver is in place there is no need to keep adding it. A conditional check around these commands might reduce some network and startup time.