At present I am creating a configmap from the file config.json by executing:
kubectl create configmap jksconfig --from-file=config.json
I would want the ConfigMap to be created as part of the deployment and tried to do this:
apiVersion: v1
kind: ConfigMap
metadata:
name: jksconfig
data:
config.json: |-
{{ .Files.Get "config.json" | indent 4 }}
But doesn't seem to work. What should be going into configmap.yaml so that the same configmap is created?
---UPDATE---
when I do a helm install dry run:
# Source: mychartv2/templates/jks-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: jksconfig
data:
config.json: |
Note: I am using minikube as my kubernetes cluster
Your config.json
file should be inside your mychart/ directory, not inside mychart/templates
configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ .Release.Name }}-configmap
data:
config.json: |-
{{ .Files.Get "config.json" | indent 4}}
config.json
{
"val": "key"
}
helm install --dry-run --debug mychart
[debug] Created tunnel using local port: '52091'
[debug] SERVER: "127.0.0.1:52091"
...
NAME: dining-saola
REVISION: 1
RELEASED: Fri Nov 23 15:06:17 2018
CHART: mychart-0.1.0
USER-SUPPLIED VALUES:
{}
...
---
# Source: mychart/templates/configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: dining-saola-configmap
data:
config.json: |-
{
"val": "key"
}
EDIT:
But I want it the values in the config.json file to be taken from values.yaml. Is that possible?
configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ .Release.Name }}-configmap
data:
config.json: |-
{
{{- range $key, $val := .Values.json }}
{{ $key | quote | indent 6}}: {{ $val | quote }}
{{- end}}
}
values.yaml
json:
key1: val1
key2: val2
key3: val3
helm install --dry-run --debug mychart
# Source: mychart/templates/configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: mangy-hare-configmap
data:
config.json: |-
{
"key1": "val1"
"key2": "val2"
"key3": "val3"
}