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Improve error message in case invalid env var found

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If you set an env var with non-yaml content but accidentally collides with a possible configuration env var,...

The current error is

```configuration error: error parsing /etc/docker/registry/config.yml: yaml: unmarshal errors:
  line 1: cannot unmarshal !!str `tcp://1...` into configuration.Parameters```

With this change we can see at least which is the problematic env var.

Some orchestrators such as docker-compose set env vars on top on user env vars, so debugging can be tricky if you are not passing vars, and the error is pointing you to a problably valid config file.

Signed-off-by: Rober Morales-Chaparro <rober@rstor.io>
Signed-off-by: Rober Morales-Chaparro <rober.morales@ebury.com>
This commit is contained in:
Rober Morales-Chaparro 2017-12-03 14:15:40 +01:00 committed by Rober Morales-Chaparro
parent 41a0452eea
commit 579107cf2e
1 changed files with 1 additions and 0 deletions
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configuration/parser.go
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@ -206,6 +206,7 @@ func (p *Parser) overwriteStruct(v reflect.Value, fullpath string, path []string
fieldVal := reflect.New(sf.Type)
err := yaml.Unmarshal([]byte(payload), fieldVal.Interface())
if err != nil {
logrus.Warnf("Error parsing environment variable %s", fullpath)
return err
}
field.Set(reflect.Indirect(fieldVal))