Importing Keycloak realms from a directory

.env

KEYCLOAK_VERSION=16.1.1
KEYCLOAK_USER=keycloak
KEYCLOAK_PASSWORD=keycloak
KEYCLOAK_IMPORT_FOLDER=./keycloak/realms/import

docker-compose.yml

version: '3.3'
services:
  keycloak:
    image: jboss/keycloak:${KEYCLOAK_VERSION}
    ports:
      - "8024:8080"
    environment:
      - KEYCLOAK_USER=${KEYCLOAK_USER}
      - KEYCLOAK_PASSWORD=${KEYCLOAK_PASSWORD}
    volumes:
      - ${KEYCLOAK_IMPORT_FOLDER}:/tmp/import
    command:
      - "-Dkeycloak.migration.action=import"
      - "-Dkeycloak.migration.provider=dir"
      - "-Dkeycloak.migration.dir=/tmp/import"