Function New

pkg/docker/dockerclient/client.go:134–265

New creates a new Docker client instance

(config *config.DockerClient)

// New creates a new Docker client instance
func New(config *config.DockerClient) (*docker.Client, error) {
	var client *docker.Client
	var err error

	newTLSClient := func(host string, certPath string, verify bool, apiVersion string) (*docker.Client, error) {
		var ca []byte

		cert, err := os.ReadFile(filepath.Join(certPath, "cert.pem"))
		if err != nil {
			return nil, err
		}

		key, err := os.ReadFile(filepath.Join(certPath, "key.pem"))
		if err != nil {
			return nil, err
		}

		if verify {
			var err error
			ca, err = os.ReadFile(filepath.Join(certPath, "ca.pem"))
			if err != nil {
				return nil, err
			}
		}

		return docker.NewVersionedTLSClientFromBytes(host, cert, key, ca, apiVersion)
	}

	switch {
	case config.Host != "" &&
		config.UseTLS &&
		config.VerifyTLS &&
		config.TLSCertPath != "":
		client, err = newTLSClient(config.Host, config.TLSCertPath, true, config.APIVersion)
		if err != nil {
			return nil, err
		}

		log.Debug("dockerclient.New: new Docker client (TLS,verify) [1]")

	case config.Host != "" &&
		config.UseTLS &&
		!config.VerifyTLS &&
		config.TLSCertPath != "":
		client, err = newTLSClient(config.Host, config.TLSCertPath, false, config.APIVersion)
		if err != nil {
			return nil, err
		}

		log.Debug("dockerclient.New: new Docker client (TLS,no verify) [2]")

	case config.Host != "" &&
		!config.UseTLS:
		client, err = docker.NewVersionedClient(config.Host, config.APIVersion)
		if err != nil {
			return nil, err
		}