Keycloak+PostgreSQL docker compose

docker-compose.yml

version: '3'

services:
  postgres-kc:
      container_name: keycloak-db
      image: postgres:12
      volumes:
        - ./db:/var/lib/postgresql/data
      environment:
        POSTGRES_DB: keycloak
        POSTGRES_USER: keycloak
        POSTGRES_PASSWORD: password
  keycloak:
      container_name: keycloak
      image: jboss/keycloak:latest
      environment:
        DB_VENDOR: postgres
        DB_ADDR: keycloak-db
        DB_DATABASE: keycloak
        DB_USER: keycloak
        DB_SCHEMA: public
        DB_PASSWORD: password
        KEYCLOAK_USER: admin
        KEYCLOAK_PASSWORD: somepwssword
      ports:
        - 7777:8080
      depends_on:
        - postgres-kc

networks:
  default:
    external:
      name: ${YOUR-NET}