43 lines
774 B
Go
43 lines
774 B
Go
package main
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import (
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"errors"
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"fmt"
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_ "strconv"
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"strings"
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)
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// Configuration errors
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var ErrUndefined = errors.New("value not defined")
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type ConfigError struct {
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Key string
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Value interface{}
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Err error
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}
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func (e *ConfigError) Error() string {
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return fmt.Sprintf("Error in configuration for %s: %s",
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e.Key, e.Err.Error())
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}
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func (e *ConfigError) Unwrap() error { return e.Err }
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func undefinedError(key string) *ConfigError {
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return &ConfigError{key, nil, ErrUndefined}
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}
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// Get the first host port from a service
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func (s ServiceConfig) GetHostPort() (string, error) {
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if s.Ports == nil {
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return "", undefinedError("ports")
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}
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ports := strings.Split(s.Ports[0], ":")
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if len(ports) == 0 {
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return "", undefinedError("ports")
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}
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return ports[0], nil
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}
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