In a simple Postgres Deployment, I wish to choose the volume dependent on the namespace. The aim is to use the same Deployment configuration file to create Postgres deployments in different namespaces (e.g. production/staging).
What ways are there to achieve this?
Below my configuration file, I basically want to make MAKE_THIS_DEPENDENT_ON_NAMESPACE dependent on the environment (or namespace) this Deployment is used in.
kind: Deployment
metadata:
name: postgres
labels:
app: postgres
spec:
template:
metadata:
labels:
app: postgres
spec:
containers:
- image: postgres:9.6
name: postgres
volumeMounts:
-name: postgres-storage
mountPath: /var/lib/postgresql
volumes:
- name: postgres-persistent-storage
gcePersistentDisk:
pdName: MAKE_THIS_DEPENDENT_ON_NAMESPACEYou should try using a Persistent Volume Claim instead, PVCs are namespaced.
https://kubernetes.io/docs/concepts/storage/persistent-volumes/#claims-as-volumes
kind: Pod
apiVersion: v1
metadata:
name: mypod
spec:
containers:
- name: myfrontend
image: dockerfile/nginx
volumeMounts:
- mountPath: "/var/www/html"
name: mypd
volumes:
- name: mypd
persistentVolumeClaim:
claimName: myclaim