Variables in Helm values files are not parsed correctly

[eddymoulton]

Severity

No response

Version

Latest (2025.1.1396)

Latest Version

I could reproduce the problem in the latest build

What happened?

Reported by customers via community slack: https://octopususergroup.slack.com/archives/C6UGLUWMQ/p1731303503059749

Thomas Bereczky Nov 11th at 4:38 PM

Hey Folks,
I got stuck a bit, we got over 20 helm charts where we are doing everything always the same, now there is one pesky helm chart that is causing a huge headache with the values.yaml.
https://gyazo.com/11ce5f6af8eab2b084a12ae038690d1d
Did anyone meet this issue before? Is there any chance I could connect with someone from support for a call? (edited)
https://gyazo.com/11ce5f6af8eab2b084a12ae038690d1d

Finnian Dempsey Nov 12th at 11:10 AM

I believe "ParseTemplateValuesFilesFromDependencies" implies the values is coming from a file so it sounds like the values file being loaded from a package is mis-formed:

Thomas Bereczky Nov 12th at 12:02 PM

I figured it out, so basically I had a variable which contained a JSON array: ["SOMETHING"]
🙌

and basically it could not skip the quotes
my work around was to hardcode the variable in the code 😄
...
I tried but I ended up hardcoding it into the code, since we did not even use that variable it did not matter for us

Siim Viikman Saturday at 2:28 AM

I had the same problem. In the end it seemed to be issue when yaml contained json non-compliant keys with dash (like min-replicas-to-write).
But it only occurred when I had my inline YAML defined as this:
#{Service.HelmYaml}
and Service.HelmYaml contained configuration like this:

replicas: 3
config:
  min-replicas-to-write: 1

When I replaced my inline yaml directly with variable value, it worked.
I think it is kind of a bug, as many public helm templates (which I don't have control over) contain such values... (edited)

Reproduction

Reprodution: OctopusDeploy/Calamari#1390

Error and Stacktrace

No response

More Information

No response

Workaround

Current workaround is to not use variables when setting helm values.