Deploying ERPNext on K8s

ERPNext
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1

Hello everyone,

I’ve been trying to install a demo Erpnext environment on our K8s cluster for one week now. We are using Helm, Customize, and Fluxed to automate the deployment.

Everything is deployed correctly. But the backend cannot be connecting to the mariadb. It seems that the db user is generated randomly and it’s not added in the database so it cannot be authenticated. Here is the values

replicas: 1

mariadb:
  enabled: true
  auth:
    username: "erpnext_user"
    password: "secure_password"
    replicationPassword: "secure_password"
    rootPassword: "root_password"
  primary:
    persistence:
      storageClass: "local-path"
      size: 8Gi

persistence:
  storageClass: "nfs"
  size: 8Gi

dbHost: "erpnext-mariadb"
dbPort: "3306"
dbRootUser: "root"
dbRootPassword: "root_password"

ingress:
  enabled: true
  className: traefik
  ingressName: "erp-techbricks-io"
  annotations:
    cert-manager.io/cluster-issuer: letsencrypt-prod
    kubernetes.io/ingress.class: traefik
  hosts:
    - host: erp.techbricks.io
      paths:
        - path: /
          pathType: Prefix
  tls:
    - secretName: erp-techbricks-io-tls
      hosts:
        - erp.techbricks.io

jobs:
  createSite:
    enabled: true
    forceCreate: true
    siteName: erp.techbricks.io
    adminPassword: "changeitroot"
    adminExistingSecretKey: "changeitroot"
    dbType: "mariadb"

    dbName: "erpnext_db"
    dbUser: "erpnext_user"
    dbPassword: "secure_password"
    dbRootUser: "root"
    dbRootPassword: "root_password"

    dbHost: "erpnext-mariadb"
    dbPort: "3306"
    dbRootUser: "root"
    dbRootPassword: "root_password"

and here is the error from db logs:

command: kubectl logs -n erpnext pod/erpnext-mariadb-0

result: 2025-04-01 12:31:47 296 [Warning] Access denied for user ‘_e63942ff0a00f92c’@‘10.42.0.31’ (using password: YES)

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2

I’ve figure out that the create site completes but with errors.

kubectl logs -n erpnext pod/erpnext-new-site-20250401134937-tdfcn
Defaulted container “create-site” out of: create-site, validate-config (init)
++ bench new-site erp.techbricks.io
++ --no-mariadb-socket --db-type=mariadb --db-host=erpnext-mariadb --db-port=3306 --admin-password=changeitroot --mariadb-root-username=root --mariadb-root-password=root_password --install-app=erpnext --install-app=wiki --install-app=hrms --install-app=gameplan --force
++ tee /dev/stderr
bash: line 17: --no-mariadb-socket: command not found

  • bench_output=‘Site erp.techbricks.io already exists’
  • bench_exit_status=0
  • ‘[’ 0 -ne 0 ‘]’
  • set -e
  • rm -f currentsite.txt

It seems that it’s not recognizing the full command. The script is still splitting the bench command across multiple lines, causing this error.

I’ve tried to run the full command manually and it works fine and created the site.

Any ideas on why this is happening and how to avoid the manual command running ?