32 lines
931 B
Go
32 lines
931 B
Go
package cli
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import (
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"fmt"
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"os"
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"strings"
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"github.com/containous/traefik/v2/pkg/log"
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"github.com/traefik/paerser/cli"
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"github.com/traefik/paerser/env"
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)
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// EnvLoader loads a configuration from all the environment variables prefixed with "TRAEFIK_".
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type EnvLoader struct{}
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// Load loads the command's configuration from the environment variables.
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func (e *EnvLoader) Load(_ []string, cmd *cli.Command) (bool, error) {
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vars := env.FindPrefixedEnvVars(os.Environ(), env.DefaultNamePrefix, cmd.Configuration)
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if len(vars) == 0 {
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return false, nil
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}
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if err := env.Decode(vars, env.DefaultNamePrefix, cmd.Configuration); err != nil {
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log.WithoutContext().Debug("environment variables", strings.Join(vars, ", "))
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return false, fmt.Errorf("failed to decode configuration from environment variables: %w ", err)
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}
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log.WithoutContext().Println("Configuration loaded from environment variables.")
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return true, nil
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}
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