Error when upgrading to Helm chart 6.14.1

[karl-dpg]

Describe the bug
After upgrading to Helm chart 6.14.1, an error starting showing during the Helm upgrade. Error is:

template: promtail/templates/secret.yaml:18:8: executing "promtail/templates/secret.yaml" at <tpl .Values.config.file .>: error calling tpl: error during tpl function execution for "server:\n  log_level: 
...
: parse error at (promtail/templates/secret.yaml:22): function "ToUpper" not defined

To Reproduce
Setting the config.snippets.pipelineStages to the below:

    config:
      snippets:
        pipelineStages:
          - cri: {}
          - match:
              selector: '{namespace=~"test"}'
              stages:
                - json:
                    expressions:
                      app: app
                      level: level
                      msg: msg
                - template:
                    source: output
                    template: '{{ printf "[%-5s] " .level | ToUpper }}{{ printf "[%-22s] " .app }}'

Expected behavior
Template remains functioning after upgrade.

Environment:

• Infrastructure: Kubernetes
• Deployment tool: helm

Screenshots, Promtail config, or terminal output

[LinAnt]

Pretty sure ToUpper should just be upper.

[karl-dpg]

Pretty sure ToUpper should just be upper.

Could you explain why it works with 6.14.0 please?

[Sheikh-Abubaker]

Hi @karl-dpg,
Where do I find this secret.yaml file that you mentioned above