I have docker-compose.yml as follows:
version: '2'
services:
eureka-server:
image: some-dtr-name/some-orgname/some-reponame:some-versionname
mem_limit: somememory
environment:
SPRING_PROFILES_ACTIVE: some-profile
JAVA_OPTS: -Xms256m -Xmx512m
ports:
- "some-port:some-port"
restart: always
networks:
- cloud
networks:
cloud:
driver: bridge
I want to pass some-dtr-name,some-orgname,some-reponame,some-versionname,somememory,some-profile,some-profile,some-port as a aurgument to docker-compose file. I am doing this task using shell file.
#!/bin/bash
some-dtr-name="$1"
some-orgname="$2"
some-reponame="$3"
some-versionname="$4"
somememory="$5"
some-profile="$6"
some-profile="$7"
some-port="$8"
docker-compose up
How can I do this task ??
Docker compose supports the environment variable substitution, using the ${} syntax: https://docs.docker.com/compose/compose-file/#variable-substitution
So if you have the environment variable some_port defined, before you run docker-compose, you can then just refer to it as ${some_port} in your docker-compose file.
ports:
- "${some_port}:${some_port}"
Another thing to note is that the variable names in your sample code contain dashes -, which is not valid in bash
name A word consisting only of alphanumeric characters and underscores, and beginning with an alphabetic character or an underscore. Also referred to as an identifier.
you have to use underscore character _ instead.