Kubernetes 환경에서 Keycloak 분산 클러스터링 적용 tutorial

• 목표 Keycloak version: 18.0.0

prerequisite

• multipass
• kubectl, helm

QuickStart

check help messages: scripts/cluster.sh, scripts/registry.sh

1. scripts/cluster.sh --install
2. scripts/registry.sh --bootstrap
3. set ingress of registries
   1. scripts/registry.sh --set-ingress k8s-dashboard
      • in zsh/bash/sh: run k8s or ./k8s.sh
   2. scripts/registry.sh --set-ingress longhorn
      • in zsh/bash/sh: run longhorn or ./longhorn.sh
4. keycloak installation
   1. scripts/keycloak.sh --install config
   2. scripts/keycloak.sh --install db
      • get Database Connection Info: ./scripts/keycloak.sh --open postgresql
   3. scripts/keycloak.sh --install standalone
      • set keycloak Ingress: ./scripts/keycloak.sh -i ingress
      • get Keycloak URL (after set Ingress): ./scripts/keycloak.sh --open standalone

cluster configuration & test suites

• 3 nodes : scaling nodes suite
• 3 keycloak-cluster
  • importing exist realm
  • connect with external postgreSQL pod (it will be clustered DB. . .?)
• testable web : nodejs (it will be clustered . .? << pm2 VS HPA Cluster OR SO?)
• (언젠가) proxy 관련 설정 알아보기
  • https://www.keycloak.org/server/reverseproxy

Tested on

• mac

References

• https://www.keycloak.org/guides#server

TODOs

• importing/exporting realm
• not operator deployment trial
• operator deployment trial (bitnami?)