[英]docker-compose: run a command on a pgsql container
I am trying to run the following docker-compose
file: 我正在尝试运行以下docker-compose
文件:
version: "3"
services:
db:
image: postgres
container_name: pgsql
environment:
- foo=foo
- bar=bar
volumes:
- ./sql/:/opt/sql
command: bash /opt/sql/create-db.sql
# command: ps -aux
web:
image: benit/debian-web
container_name: web
depends_on:
- db
ports:
- 80:80
volumes:
- ./html:/var/www/html
I am encountering an error with the line: 我在该行遇到错误:
command: bash /opt/sql/create-db.sql
It is because pgsql service is not started. 这是因为pgsql服务没有启动。 It can be monitored with command: ps -aux
可以使用以下command: ps -aux
监视它command: ps -aux
How can I run my script once pgsql service is started ? pgsql服务启动后,如何运行脚本?
You can use a volume to provide an initialization sql script: 您可以使用卷来提供初始化sql脚本:
version: "3"
services:
db:
image: postgres
container_name: pgsql
environment:
- foo=foo
- bar=bar
volumes:
- ./sql/:/opt/sql
- ./init.sql:/docker-entrypoint-initdb.d/init.sql
web:
image: benit/debian-web
container_name: web
depends_on:
- db
ports:
- 80:80
volumes:
- ./html:/var/www/html
This will work because original Posgresql dockerfile contains a script (that runs after Posrgres has been started) which will execute any *.sql
files from /docker-entrypoint-initdb.d/
folder. 这将起作用,因为原始Posgresql dockerfile包含一个脚本(在Posrgres启动后运行),该脚本将执行/docker-entrypoint-initdb.d/
文件夹中的所有*.sql
文件。
By mounting your local volume in that place, your sql files will be run at the right time. 通过在该位置挂载本地卷,您的sql文件将在正确的时间运行。
It's actually mentioned in documentation for that image: https://hub.docker.com/_/postgres under the How to extend this image
section. 该图像的文档中实际上提到了它: How to extend this image
部分下的https://hub.docker.com/_/postgres 。
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