Kubernetes On-Premises Deployments with Kublr

Deploy Kubernetes On-Premises with Kublr

To install Kublr on-premises, the local file system host OS (hostPath) is used to store persistent data. You can override the storage location through Kublr’s custom specification.

Kublr components storage locations

Component Name	Node Type	Default Storage Path	Owner UID	Minimum Disk Size
ETCD	master	/mnt/master-pd	0	4G
Elasticsearch data node	node	/var/lib/kublr/elasticserach/data	1000	128G
Elasticsearch master node	node	/var/lib/kublr/elasticserach/master	1000	4G
Grafana	node	/var/lib/kublr/grafana	0	1G
MongoDB	node	/var/lib/kublr/mongodb	1001	8G
MySQL DB	node	/var/lib/kublr/mysql	999	8G
Prometheus	node	/var/lib/kublr/prometheus	0	25G
RabbitMQ	node	/var/lib/kublr/rabbitmq	999	3G
Component Name	hostPath	owner UID	minimum size

Kublr components storage path overrides

Kublr controlplane

/mnt/master-pd - ETCD storage on master node owner UID: 0, size: 10G

spec:
  master:
    kublrAgentConfig:
      etcd_storage:
        path: /data/etcd

/var/lib/mongodb-data - MongoDB data owner UID: 1001, size: 8G

spec:
  controlPlane:
    values:
      app-mongodb:
        localStorage:
          enabled: true
          nodeName: node-1.kcp.local
          hostPath: /data/MongoDB

Kublr Monitoring

/var/lib/kublr/prometheus - Prometheus RAW DB owner UID: 0, size: 25G

spec:
  features:
    monitoring:
      prometheus:
        nodeName: node-0.kcp.local
        persistence:
          hostPath: /data/prometheus

/var/lib/kublr/grafana - Grafana storage owner UID: 0, size: 1G

spec:
  features:
    monitoring:
      grafana:
        nodeName: node-1.kcp.local
        persistence:
          hostPath: /data/grafana

Kublr Logging

/var/lib/kublr/elasticsearch/data - Elasticsearch data nodes owner UID: 1000, size: 128G

spec:
  features:
    logging:
      values:
        elasticsearch:
          data:
            persistence:
              hostPath: /data/elk-data

/var/lib/kublr/elasticsearch/master - Elasticsearch master nodes data owner UID: 1000, size: 4G

spec:
  features:
    logging:
      values:
        elasticsearch:
          master:
            persistence:
              hostPath: /data/elk-master

/var/lib/kublr/rabbitmq - RabbitMQ data dir owner UID: 999, size: 3G

spec:
  features:
    logging:
      values:
        rabbitmq:
          persistentVolume:
            hostPath: /data/rabbitmq
          nodeName: node-0.kcp.local