expand service environment_variables before adding to subs_dict

Also modifies an existing integration test to expect an empty string as `docker-compose` warns that
`ZZVAR3` is not set and defaults it to an empty string per the acutal output here.

```yaml
$ docker-compose -f container-compose.load-.env-in-project.yaml config
WARN[0000] The "ZZVAR3" variable is not set. Defaulting to a blank string.
name: project
services:
  app:
    command:
      - /bin/busybox
      - sh
      - -c
      - env | grep ZZ
    environment:
      ZZVAR1: This value is loaded but should be overwritten
      ZZVAR2: This value is loaded from .env in project/ directory
      ZZVAR3: ""
...
```

Signed-off-by: indra <indra.talip@gmail.com>
This commit is contained in:
indra
2025-01-16 10:36:34 +11:00
parent a177603661
commit 2aa042b9c7
3 changed files with 11 additions and 2 deletions

View File

@ -233,7 +233,7 @@ class TestComposeEnvFile(unittest.TestCase, RunSubprocessMixin):
[
'ZZVAR1=This value is loaded but should be overwritten\r',
'ZZVAR2=This value is loaded from .env in project/ directory\r',
'ZZVAR3=$ZZVAR3\r',
'ZZVAR3=\r',
'',
],
)