We'll almost never install a Chart as we did. Even though the default values do often make a lot of sense, there is always something we need to tweak to make an application behave as we expect.
What if we do not want the Jenkins tag predefined in the Chart? What if for some reason we want to deploy Jenkins 2.112-alpine?
There must be a sensible way to change the tag of the stable/jenkins Chart.
Helm allows us to modify installation through variables. All we need to do is to find out which variables are available.
Besides visiting project's documentation, we can retrieve the available values through the command that follows.
1 helm inspect values stable/jenkins
The output, limited to the relevant parts, is as follows.
... Master: Name: jenkins-master Image: "jenkins/jenkins" ImageTag: "lts" ...
We can see that...