我需要将文件中的env变量传递给docker-compose中的命令,但这似乎是不可能的。因此,我先尝试使用var环境,但此方法无法再次使用。我该怎么办?
version: '3'
services:
nginx-service-xxx:
image: service-xxx-nginx:latest
ports:
- 80:80
restart: always
service-xxx:
image: service-xxx:latest
# env_file:
# - db-settings.env
environment:
- PORT=80
- PG-HOST=192.168.0.101
- PG-DATABASE=xxx
- PG-USER=postgres
- PG-PASSWORD=postgres
restart: always
command: python xxx/main.py --port=$$PORT --pg-host=$$PG-HOST --pg-database=$$PG-DATABASE --pg-user=$$PG-USER --pg-password=$$PG-PASSWORD
尝试将命令的复杂性移至Docker入口点。首先,您需要在项目中添加以下入口点(使其可执行)
#!/bin/bash -e
case $1 in
web)
python xxx/main.py --port=$PORT --pg-host=$PG-HOST --pg-database=$PG-DATABASE --pg-user=$PG-USER --pg-password=$PG-PASSWORD
;;
*)
exec "$@"
;;
esac
exit 0
为您的服务更新docker文件
From base-image
COPY ./docker-entrypoint.sh /
ENTRYPOINT ["/docker-entrypoint.sh"]
更新撰写
version: '3'
services:
nginx-service-xxx:
image: service-xxx-nginx:latest
ports:
- 80:80
restart: always
service-xxx:
image: service-xxx:latest
environment:
- PORT=80
- PG-HOST=192.168.0.101
- PG-DATABASE=xxx
- PG-USER=postgres
- PG-PASSWORD=postgres
restart: always
command: web