简介

Keycloak 是一款开源的身份验证程序，具备以下的特点：

  • 影响最小的方式为应用程序添加身份验证
  • 不存储用户数据和验证数据
  • 提供用户联合、高强度认证、用户管理、细粒度授权等功能

创建数据库

使用的数据库是 postgresql，假设已经有安装好的 postgresql，并且默认管理员账号是 postgres，那么我们先创建 keycloak 的用户。数据库的详细操作可以参考：PGSQL 安装配置指南

su - postgres
# 我们创建一个名为 keycloak 的 pgsql 用户和名为 keycloak 的数据库
createuser -s -P keycloak
createdb keycloak -O keycloak

docker-compose.yml

version: "3"
services:
  postgres:
    container_name: pgsql
    image: postgres:15
    ports:
      - "5432:5432"
    volumes:
      - ./database-data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD", "pg_isready", "-U", "user"]
      interval: 30s
      timeout: 20s
      retries: 3
    environment:
      POSTGRES_USER: 'keycloak'
      POSTGRES_PASSWORD: '<pgsql数据库密码>'
      POSTGRES_DB: 'keycloak'
      TZ: Asia/Shanghai
  keycloak:
    image: quay.io/keycloak/keycloak:23.0
    container_name: keycloak
    environment:
      KC_HOSTNAME: <域名，如sso.naizhao.com>
      KC_HTTP_PORT: <监听的http端口，比如8080>
      KC_HTTPS_PORT: <监听的http端口，比如8443>
      KC_HOSTNAME_STRICT_HTTPS: true
      KC_FEATURES: token-exchange
      KC_DB: postgres
      KC_DB_URL: jdbc:postgresql://<pgsql的IP，比如127.0.0.1>:5432/keycloak
      KC_DB_USERNAME: keycloak
      KC_DB_PASSWORD: <前面创建pgsql账号时输入的密码>
      KEYCLOAK_ADMIN: <管理员账号，比如admin>
      KEYCLOAK_ADMIN_PASSWORD: <管理员密码>
      KC_HEALTH_ENABLED: "true"
      KC_LOG_LEVEL: info
      KC_PROXY: edge
    healthcheck:
      test: [ "CMD", "curl", "-f", "http://localhost:8080/health/ready" ]
      interval: 15s
      timeout: 2s
      retries: 15
    command: start
    ports:
      # 这里把8080端口映射到10080,8443映射到10443，防止和服务器上其他端口冲突
      - 10080:8080
      - 10443:8443

.env

KEYCLOAK_DIR=/data/keycloak
IMAGE_TAG=latest
POSTGRES_PASSWORD=3MFDCCIa5PnD9X6Kla7XePKwxhpVvfXK
REDIS_PASSWORD=AvWQQF5KJMjX1jeipEKeGlPQZxjCLVnH
SUBNET_PREFIX=172.22.224

keycload-compose.yml

networks:
  keycloak-net:
    name: keycloak-net
    driver: bridge
    ipam:
      driver: default
      config:
        - gateway: ${SUBNET_PREFIX:?SUBNET_PREFIX required}.1
          subnet: ${SUBNET_PREFIX}.0/24
    driver_opts:
      com.docker.network.bridge.name: keycloak-net

services:
  postgres:
    container_name: keycloak-postgres
    restart: always
    image: postgres:15.2
    volumes:
      - ${KEYCLOAK_DIR}/data/postgres:/var/lib/postgresql/data
      - /etc/localtime:/etc/localtime:ro
    healthcheck:
      test: ["CMD", "pg_isready", "-q", "-d", "keycloak", "-U", "keycloak"]
      interval: 30s
      timeout: 20s
      retries: 3
    environment:
      - POSTGRES_USER=keycloak
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:?postgres password required}
      - POSTGRES_DB=keycloak
    networks:
      keycloak-net:
        ipv4_address: ${SUBNET_PREFIX}.2
    cap_drop:
      - net_raw
    command: [postgres, -c, max_connections=200]
  keycloak:
    image: quay.io/keycloak/keycloak
    container_name: keycloak
    restart: always
    volumes:
      - /etc/localtime:/etc/localtime:ro
    environment:
      KC_HOSTNAME: key.waringid.me
      KC_HTTP_PORT: 8080
      KC_FEATURES: token-exchange
      KC_DB: postgres
      KC_DB_URL: jdbc:postgresql://postgres:5432/keycloak
      KC_DB_USERNAME: keycloak
      KC_DB_PASSWORD: ${POSTGRES_PASSWORD:?postgres password required}
      KEYCLOAK_ADMIN: admin
      KEYCLOAK_ADMIN_PASSWORD: Www.lfang123.com
      KC_HEALTH_ENABLED: true
      KC_DB_SCHEMA: public
      KC_LOG_LEVEL: info
      KC_PROXY: edge
      KC_HOSTNAME_ADMIN_URL: 'https://key.waringid.me'
      KC_HOSTNAME_PATH: /
      KC_HOSTNAME_STRICT_HTTPS: false
      KC_PROXY_ADDRESS_FORWARDING: true
      KC_HOSTNAME_STRICT: false
      KC_HOSTNAME_STRICT_BACKCHANNEL: true
    healthcheck:
      test: [ "CMD", "curl", "-f", "http://localhost:8080/health/ready" ]
      interval: 15s
      timeout: 2s
      retries: 15
    command: start
    ports:
      - 10080:8080
    depends_on:
      - postgres
    networks:
      keycloak-net:
        ipv4_address: ${SUBNET_PREFIX}.3
    cap_drop:
      - net_raw


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