cli/context/docker: rename receiver for Endpoint

Code in methods of this type also used the Client, and having this receiver
named "c" made it easy to confuse it for referring to Client ("c").

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

cli/context/docker/load.go

@@ -40,23 +40,23 @@ func WithTLSData(s store.Reader, contextName string, m EndpointMeta) (Endpoint,
 }
 
 // tlsConfig extracts a context docker endpoint TLS config
-func (c *Endpoint) tlsConfig() (*tls.Config, error) {
-	if c.TLSData == nil && !c.SkipTLSVerify {
+func (ep *Endpoint) tlsConfig() (*tls.Config, error) {
+	if ep.TLSData == nil && !ep.SkipTLSVerify {
 		// there is no specific tls config
 		return nil, nil
 	}
 	var tlsOpts []func(*tls.Config)
-	if c.TLSData != nil && c.TLSData.CA != nil {
+	if ep.TLSData != nil && ep.TLSData.CA != nil {
 		certPool := x509.NewCertPool()
-		if !certPool.AppendCertsFromPEM(c.TLSData.CA) {
+		if !certPool.AppendCertsFromPEM(ep.TLSData.CA) {
 			return nil, errors.New("failed to retrieve context tls info: ca.pem seems invalid")
 		}
 		tlsOpts = append(tlsOpts, func(cfg *tls.Config) {
 			cfg.RootCAs = certPool
 		})
 	}
-	if c.TLSData != nil && c.TLSData.Key != nil && c.TLSData.Cert != nil {
-		keyBytes := c.TLSData.Key
+	if ep.TLSData != nil && ep.TLSData.Key != nil && ep.TLSData.Cert != nil {
+		keyBytes := ep.TLSData.Key
 		pemBlock, _ := pem.Decode(keyBytes)
 		if pemBlock == nil {
 			return nil, errors.New("no valid private key found")
@@ -65,15 +65,15 @@ func (c *Endpoint) tlsConfig() (*tls.Config, error) {
 			return nil, errors.New("private key is encrypted - support for encrypted private keys has been removed, see https://docs.docker.com/go/deprecated/")
 		}
 
-		x509cert, err := tls.X509KeyPair(c.TLSData.Cert, keyBytes)
+		x509cert, err := tls.X509KeyPair(ep.TLSData.Cert, keyBytes)
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to retrieve context tls info")
 		}
 		tlsOpts = append(tlsOpts, func(cfg *tls.Config) {
 			cfg.Certificates = []tls.Certificate{x509cert}
 		})
 	}
-	if c.SkipTLSVerify {
+	if ep.SkipTLSVerify {
 		tlsOpts = append(tlsOpts, func(cfg *tls.Config) {
 			cfg.InsecureSkipVerify = true
 		})
@@ -82,21 +82,21 @@ func (c *Endpoint) tlsConfig() (*tls.Config, error) {
 }
 
 // ClientOpts returns a slice of Client options to configure an API client with this endpoint
-func (c *Endpoint) ClientOpts() ([]client.Opt, error) {
+func (ep *Endpoint) ClientOpts() ([]client.Opt, error) {
 	var result []client.Opt
-	if c.Host != "" {
-		helper, err := connhelper.GetConnectionHelper(c.Host)
+	if ep.Host != "" {
+		helper, err := connhelper.GetConnectionHelper(ep.Host)
 		if err != nil {
 			return nil, err
 		}
 		if helper == nil {
-			tlsConfig, err := c.tlsConfig()
+			tlsConfig, err := ep.tlsConfig()
 			if err != nil {
 				return nil, err
 			}
 			result = append(result,
 				withHTTPClient(tlsConfig),
-				client.WithHost(c.Host),
+				client.WithHost(ep.Host),
 			)
 
 		} else {