How to change Kubernets / PostgreSQL connection credentionsls and host - postgresql

Question

I want to adapt the example here
https://www.enterprisedb.com/blog/how-deploy-pgadmin-kubernetes
I want to change the following
need the host be localhost
the user / password to access postgreSQL server vis Admin4 be :
postgres / admin
But I dont know what shout be changed in the files
pgadmin-secret.yaml file :
(the password is SuperSecret)
sapiVersion: v1
kind: Secret
type: Opaque
metadata:
name: pgadmin
data:
pgadmin-password: U3VwZXJTZWNyZXQ=
pgadmin-configmap.yaml file :
apiVersion: v1
kind: ConfigMap
metadata:
name: pgadmin-config
data:
servers.json: |
{
"Servers": {
"1": {
"Name": "PostgreSQL DB",
"Group": "Servers",
"Port": 5432,
"Username": "postgres",
"Host": "postgres.domain.com",
"SSLMode": "prefer",
"MaintenanceDB": "postgres"
}
}
}
pgadmin-service.yaml file
apiVersion: v1
kind: Service
metadata:
name: pgadmin-service
spec:
ports:
- protocol: TCP
port: 80
targetPort: http
selector:
app: pgadmin
type: NodePort
The pgadmin-statefulset.yaml :
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: pgadmin
spec:
serviceName: pgadmin-service
podManagementPolicy: Parallel
replicas: 1
updateStrategy:
type: RollingUpdate
selector:
matchLabels:
app: pgadmin
template:
metadata:
labels:
app: pgadmin
spec:
terminationGracePeriodSeconds: 10
containers:
- name: pgadmin
image: dpage/pgadmin4:5.4
imagePullPolicy: Always
env:
- name: PGADMIN_DEFAULT_EMAIL
value: user#domain.com
- name: PGADMIN_DEFAULT_PASSWORD
valueFrom:
secretKeyRef:
name: pgadmin
key: pgadmin-password
ports:
- name: http
containerPort: 80
protocol: TCP
volumeMounts:
- name: pgadmin-config
mountPath: /pgadmin4/servers.json
subPath: servers.json
readOnly: true
- name: pgadmin-data
mountPath: /var/lib/pgadmin
volumes:
- name: pgadmin-config
configMap:
name: pgadmin-config
volumeClaimTemplates:
- metadata:
name: pgadmin-data
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 3Gi
the following commands work OK with the original yaml files ad I get the Admin4 connect form in a web page
But even with the unchanged files, I have a bad username/password error