Found duplicate key "resource, , List (v1)" in manifest

[robinelfrink]

Note this is not a duplicate of #48 or #129 .

A helm chart can generate an object of kind: List, which seems to be just another way of writing several objects into one yaml-file.

An example of such a chart is prometheus-operator, using kind: List in generated ServiceMonitors, PodMonitors etc.

The resulting manifests thus may contain multiple kind: List objects, with no name.

[jesussancheztellomm]

I am experiencing the same issue with the prometheus-operator chart.

2020/06/24 16:58:11 Error: Found duplicate key "xxx, , List (v1)" in manifest

[ihar-ivanou]

I face the same issue with prometheus-operator chart - helm-diff provides diff for 1 generated List object only.

F.e. I have both additionalPrometheusRules, additionalServiceMonitors configured and changed. As the result, I get diff output for additionalPrometheusRules, but diff for additionalServiceMonitors is never produced.

[mumoshu]

@robinelfrink @jesussancheztellomm @iivanov1 Hey! Thanks for reporting.

Finally, I got some time to work on this.

So, #232 is the fix, which instructs helm-diff to "flatten" manifests, by moving resources embedded in List resources into the top-level.

Would you mind reviewing/testing it?

[ihar-ivanou]

@mumoshu Thank you! v3.1.3 works like a charm!