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David Sjölin

David Sjölin

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Preparations

Before doing anything actively to the running installation, the config file for the new installation should be prepared.

First, retrieve the values.yaml you’ve used previously, or if you don’t have it, you can get it from the installation by doing this:

Code Block
helm get all <helm name> > <output filename>.yaml
E.g:
helm get all uepe > valuesFromSystem.yaml

Where “uepe” is the helm name you’ve chosen for your installation

Code Block
helm list
NAME         	NAMESPACE	REVISION	UPDATED                                 	STATUS  	CHART                             	APP VERSION
external-dns 	uepe     	1       	2024-05-08 15:27:48.258978207 +0200 CEST	deployed	external-dns-7.2.0                	0.14.1     
ingress-nginx	uepe     	1       	2024-05-08 16:18:43.919980224 +0200 CEST	deployed	ingress-nginx-4.10.0              	1.10.0     
uepe         	uepe     	3       	2024-05-10 14:16:17.724426589 +0200 CEST	deployed	usage-engine-private-edition-4.0.0	4.0.0

Next retrieve the new version from the repository:

Code Block
helm fetch <repo name>/usage-engine-private-edition --version <version> --untar

E.g.:

Code Block
helm fetch digitalroute/usage-engine-private-edition --version 4.0.0 --untar

Next, check the file CHANGELOG.md inside the created folder to find out what may have changed in the new version when it comes to the values-file.

In case you’re uncertain about the format of the file, here are some examples of keys and how to interpret them:

Code Block
The following values have been removed:
* ```mzOperator.clusterWide```
* ```mzOperator.experimental.performPeriodicWorkflowCleanup```
* ```jmx.remote```
* ```platform.debug.jmx```

The above mean that in the values file they are entered as:

Code Block
mzOperator:
  clusterWide:
  experimental:
    performPeriodicWorkflowCleanup
jmx:
  remote:
platform:
  debug:
    jmx:

Each part of the key doesn’t necessarily follow immediately after the previous one, but before any other “parent” on the same level. So on in this example from values.yaml:

Code Block
debug:
  script:
    enabled: false
  log:
    level:
      codeserver: info
      jetty: 'off'
      others: warn

One example of a key could be “debug.log.level.jetty”.

Make any necessary updates based on changed field you may be using in the values-file you got from the existing installation so it matches the new version.

TODO: What does the user do if we’ve removed something that they use?

When you’re update the values file you can test it using this command:

Code Block
helm upgrade --install uepe digitalroute/usage-engine-private-edition --version 4.0.0 -n uepe -f fromHelm.yaml --dry-run=server

Before doing anything actively to the running installation, the config file for the new installation should be prepared.

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