docker
/
docs
mirror of https://github.com/docker/docs.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Insert shell env var into env var priority order 

As mentioned in lines 115 through 117, "Values in the shell take precedence over those specified in the `.env` file. If you set `TAG` to a different value in your shell, the substitution in `image` uses that instead:".

This context should also be represented in the order of priority in which variables are processed.
This commit is contained in:
Niels Sorensen 2018-07-25 15:36:01 -04:00 committed by GitHub
parent 914c9f4b4d
commit 1b85085ca9
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
compose/environment-variables.md
View File

@ -130,9 +130,10 @@ When you set the same environment variable in multiple files, here's the
priority used by Compose to choose which value to use:
1. Compose file,
2. Environment file,
3. Dockerfile,
4. Variable is not defined.
2. Shell environment variables,
3. Environment file,
4. Dockerfile,
5. Variable is not defined.
In the example below, we set the same environment variable on an Environment
file, and the Compose file: