traefik/vendor/github.com/docker/libcompose/lookup/composable.go
Vincent Demeester b7daa2f3a4 Update traefik dependencies (docker/docker and related) (#1823)
Update traefik dependencies (docker/docker and related)

- Update dependencies
- Fix compilation problems
- Remove vdemeester/docker-events (in docker api now)
- Remove `integration/vendor`
- Use `testImport`
- update some deps.
- regenerate the lock from scratch (after a `glide cc`)
2017-07-06 16:28:13 +02:00

25 lines
797 B
Go

package lookup
import (
"github.com/docker/libcompose/config"
)
// ComposableEnvLookup is a structure that implements the project.EnvironmentLookup interface.
// It holds an ordered list of EnvironmentLookup to call to look for the environment value.
type ComposableEnvLookup struct {
Lookups []config.EnvironmentLookup
}
// Lookup creates a string slice of string containing a "docker-friendly" environment string
// in the form of 'key=value'. It loop through the lookups and returns the latest value if
// more than one lookup return a result.
func (l *ComposableEnvLookup) Lookup(key string, config *config.ServiceConfig) []string {
result := []string{}
for _, lookup := range l.Lookups {
env := lookup.Lookup(key, config)
if len(env) == 1 {
result = env
}
}
return result
}