Docker Registry18

[root@docker ~]# vim docker-compose.yml 
[root@docker ~]# cat docker-compose.yml 
registry2:
  restart: always
  image: registry:2
  ports: 
    - 5002:5002
  environment:
    REGISTRY_AUTH:htpasswd
    REGISTRY_AUTH_HTPASSWD_REALM:Registry Realm
    REGISTRY_AUTH_HTPASSWD_PATH:/auth/htpasswd
    REGISTRY_HTTP_TLS_CERTIFICATE:/certs/docker.crt
    REGISTRY_HTTP_TLS_KEY:/certs/docker.key
  volumes:
    - /root/data:/var/lib/registry
    - /root/certs:/certs
    - /root/auth:/auth
[root@docker ~]# ./docker-compose-Linux-x86_64 up -d 
ERROR: Validation failed in file './docker-compose.yml', reason(s):
Service 'registry2' configuration key 'environment' contains an invalid type, it should be an object, or an array
[root@docker ~]#