Kubernetes deployment database connection error - docker

Question

I'm trying to deploy GLPI application (http://glpi-project.org/) over my Kubernetes cluster but i encounter an issue.
Here is my deployment code:
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: pv-claim-glpi
labels:
type: openebs
spec:
storageClassName: openebs-storageclass
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Gi
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: glpi
namespace: jb
labels:
app: glpi
spec:
selector:
matchLabels:
app: glpi
replicas: 1 # tells deployment to run 1 pods matching the template
template: # create pods using pod definition in this template
metadata:
# unlike pod-nginx.yaml, the name is not included in the meta data as a unique name is
# generated from the deployment name
labels:
app: glpi
spec:
volumes:
- name: pv-storage-glpi
persistentVolumeClaim:
claimName: pv-claim-glpi
containers:
- name: mariadb
image: mariadb
env:
- name: MYSQL_ROOT_PASSWORD
value: "glpi"
- name: MYSQL_DATABASE
value: "glpi"
- name: MYSQL_USER
value: "glpi"
- name: MYSQL_PASSWORD
value: "glpi"
- name: GLPI_SOURCE_URL
value: "https://forge.glpi-project.org/attachments/download/2020/glpi-0.85.4.tar.gz"
ports:
- containerPort: 3306
name: mariadb
volumeMounts:
- mountPath: /var/lib/mariadb/
name: pv-storage-glpi
subPath: mariadb
- name: glpi
image: driket54/glpi
ports:
- containerPort: 80
name: http
- containerPort: 8090
name: https
volumeMounts:
- mountPath: /var/glpidata
name: pv-storage-glpi
subPath: glpidata
---
apiVersion: v1
kind: Service
metadata:
name: glpi
namespace: jb
spec:
selector:
app: glpi
ports:
- protocol: "TCP"
port: 80
targetPort: http
name: http
- protocol: "TCP"
port: 8090
targetPort: https
name: https
- protocol: "TCP"
port: 3306
targetPort: mariadb
name: mariadb
type: NodePort
---
The docker image is properly deployed but in my test phase, during the setup of the app, i get the following error while setting up the database (mysql).
I've already checked the credentials (host, username, password) and the are correct
Please help

Answer 1

Not really an answer since I don' t have the Kubernetes knowledge expected, but I can't add a comment yet :(
What you should alter first is your GLPi version.
Use this link. It's the last one:
https://github.com/glpi-project/glpi/releases/download/9.3.0/glpi-9.3.tgz
Then you may use cli tools to setup the database.
https://glpi-install.readthedocs.io/en/latest/command-line.html
Using what I get from your file:
php scripts/cliinstall.php --host=mariadb(not sure about this one in your environment but you get hte idea) --db=glpi --user=glpi --pass=glpi