25 lines
720 B
Go
25 lines
720 B
Go
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package lookup
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import (
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"fmt"
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"os"
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"github.com/docker/libcompose/config"
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)
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// OsEnvLookup is a "bare" structure that implements the project.EnvironmentLookup interface
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type OsEnvLookup struct {
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}
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// Lookup creates a string slice of string containing a "docker-friendly" environment string
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// in the form of 'key=value'. It gets environment values using os.Getenv.
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// If the os environment variable does not exists, the slice is empty. serviceName and config
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// are not used at all in this implementation.
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func (o *OsEnvLookup) Lookup(key, serviceName string, config *config.ServiceConfig) []string {
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ret := os.Getenv(key)
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if ret == "" {
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return []string{}
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}
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return []string{fmt.Sprintf("%s=%s", key, ret)}
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}
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