CODEWITHSUNDEEP
kubernetes
ronan
ronan

Reputation: 4672

ConfigMap having a an Array of db names as data

Friends

Im writing a configMap containing an array of postgres db names. Approach 1 throws an error like scalar value is expected at postgres.db.name

apiVersion: v1
kind: ConfigMap
metadata:
  name: postgres-init
data:
  postgres.host: "postgreshost"
  postgres.db.name: {"postgredb1","postgredb1", "postgredb3"}

Here is Approach 2 ie postgres.db.name having db names separated by comma

----
apiVersion: v1
kind: ConfigMap
metadata:
  name: postgres-init
data:
  postgres.host: postgreshost
  postgres.db.name: postgredb1,postgredb1,postgredb3

Which is the correct way to achieve db names as an array ?

Upvotes: 1

Views: 6857

Answers (1)

OlGe
OlGe

Reputation: 519

Edit: As @ShawnFumo and @HuBeZa pointed out, my old answer was incorrect. Configmap data key/value pairs expect the value to be in string format, therefore it isn't possible to provide a dict/list as value.

note: you have 4 "-" at the start of your second example, which would make the YAML document invalid. new YAML docs start with 3 "-". :)

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: postgres-init
data:
  postgres.host: postgreshost
  # Note the "|" after the key - this indicates a multiline string in YAML, 
  # hence we provide the values as strings.
  postgres.db.name: |
    - postgredb1
    - postgredb2
    - postgredb3

Upvotes: 6

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