lets take this example of a config map
apiVersion: v1
kind: ConfigMap
data:
abc.yml: |-
<yml here>
Getting an error like failed to parse yaml to Json.
-
remove '-' from abc.yml: |- and tryP Ekambaram– P Ekambaram2019-03-07 08:37:33 +00:00Commented Mar 7, 2019 at 8:37
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3 Answers
Yes you can do that, but you should care about the syntax. You can also follow techniques for yaml from here.
If you use kubectl create configmap myconfig --from-file=abc.yml, then it is ok.
But if you write the whole yaml file for your configmap in myconfig.yaml and then run kubectl create -f myconfig.yaml, then you should care about syntax.
Say your abc.yml file is as followings:
a:
b: b1
c: c1
d: d1
Then write your myconfig.yaml file:
apiVersion: v1
kind: ConfigMap
data:
abc.yml: |
a:
b: b1
c: c1
d: d1
Now just run kubectl create -f myconfig.yaml.
That's it.
Happy Kubernetes!!!.
Comments
Create ConfigMap from file.
kubectl create configmap myconfig --from-file=youfile.yml.
You can check more examples on kubernetes docs
Comments
These could be the problems 1. most likely the issue could with the indentation. 2. remove '-' from abc.yml: |- and check
I followed the below steps and was able to load yaml file into configmap. it worked fine.
master $ cat c.yaml
apiVersion: v1
data:
redis-config: |
maxmemory 2mb
maxmemory-policy allkeys-lru
kind: ConfigMap
metadata:
name: example-redis-config
master $ kubectl create configmap testcfg --from-file=./c.yaml
master $ kubectl get cm testcfg -oyaml
apiVersion: v1
data:
c.yaml: |
apiVersion: v1
data:
redis-config: |
maxmemory 2mb
maxmemory-policy allkeys-lru
kind: ConfigMap
metadata:
name: example-redis-config
kind: ConfigMap
metadata:
creationTimestamp: 2019-03-07T08:35:18Z
name: testcfg
namespace: default
resourceVersion: "7520"
selfLink: /api/v1/namespaces/default/configmaps/testcfg
uid: f033536d-40b3-11e9-a67d-0242ac11005b
2 Comments
Nancy
apiVersion: v1 kind: ConfigMap data: abc.yml: | namespace: "a_namespace" :development: <<: *defaults deployment >> default How to make the config map read the default variables ?
P Ekambaram
please state clearly what exactly you are trying to achieve