--set and maps

[vromero]

I have a configuration in values.yaml as follows:

someone:
  - name : "mister"
    surname : "pompapdur"

To try to override I tried the following:

helm install my-chart --set "someone={{name=john, surname=doe}}"

But I get:

Error: failed parsing --set data: key "}" has no value

Is there a way to pass a map from the command line?

[technosophos]

It's not the map that is difficult to deal with, it's the list. Until recently, there was no way to access items in a list from --set. But we are about to merge a fix for this into Helm 2.5

In Helm 2.5, you will do it like this:

helm --set someone[0].name=mister,someone[0].surname=pompadur

[technosophos]

See #2545

[technosophos]

Closed by #2545

[4c74356b41]

i like how the person doesnt answer the original question but talks about passing lists through command line. entertaining.

[bacongobbler]

The original question asked about an array of maps, so the answer provided did indeed answer the original question. The title was just worded incorrectly.

Is there something you're trying to figure out?

[4c74356b41]

yeah, was, but completely unrelated to this question (randomly got here).

[gm42]

I think an example on how to set a map via --set would be nice to have, couldn't find anything here: https://helm.sh/docs/chart_best_practices/values/

[igoratencompass]

In my experience in case the var is a bit more complex like:

someone:
  - name : ""
    surname : ""
    middlename: ""
    somelist: []

setting only the first two as per the example:

helm --set someone[0].name=mister,someone[0].surname=pompadur

wipes out the rest of the parameters as if they never existed converting the someone var into:

someone:
  - name : "mister"
    surname : "pompadur"

Example when using {{ range $i, $v := .Values.someone }} , {{ $v.middlename }} and {{ $v.somelist }} return null