38 lines
972 B
Go
38 lines
972 B
Go
package dockerclient
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import (
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"crypto/tls"
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"crypto/x509"
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"errors"
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"io/ioutil"
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"path/filepath"
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)
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// TLSConfigFromCertPath returns a configuration based on PEM files in the directory
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//
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// path is usually what is set by the environment variable `DOCKER_CERT_PATH`,
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// or `$HOME/.docker`.
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func TLSConfigFromCertPath(path string) (*tls.Config, error) {
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cert, err := ioutil.ReadFile(filepath.Join(path, "cert.pem"))
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if err != nil {
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return nil, err
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}
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key, err := ioutil.ReadFile(filepath.Join(path, "key.pem"))
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if err != nil {
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return nil, err
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}
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ca, err := ioutil.ReadFile(filepath.Join(path, "ca.pem"))
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if err != nil {
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return nil, err
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}
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tlsCert, err := tls.X509KeyPair(cert, key)
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if err != nil {
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return nil, err
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}
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tlsConfig := &tls.Config{Certificates: []tls.Certificate{tlsCert}}
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tlsConfig.RootCAs = x509.NewCertPool()
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if !tlsConfig.RootCAs.AppendCertsFromPEM(ca) {
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return nil, errors.New("Could not add RootCA pem")
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}
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return tlsConfig, nil
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}
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