HA deployment via helm chart.

[reasonerjt]

When the target env meets the prerequisite , user should easily deploy the helm chart to his cluster to support HA.

• Goal:

Deploy Harbor on k8s via helm to make it highly available, that is, if one of node that has Harbor's container running becomes un accessible. User does not experience interrupt of service of Harbor.

• Pre-requisite:

  • Functional k8s cluster (>= 1.11) and helm ( >=2.9.2)
  • Load Balancer or High available ingress controller (Harbor does not manage the external endpoint)
  • HA postgres DB (Harbor does not handle the deployment of HA of DB)
  • External Object storage for storing image data
  • A StorageClass on K8S cluster for dynamically provision the PV that can be shared across nodes(optional): If user do not setup the StorageClass, he will need to create the PVC or PV before he deploy's Harbor's chart.
  • HA redis (maybe optional?)