Fix crash for when remote host IP or Username is not set in conf file & conf file exists.

When Host IP is not set in podman-remote.conf, error is printed out.
When Username is not set in podman-remote.conf, default username is used.

Signed-off-by: Ashley Cui <ashleycui16@gmail.com>

2 files changed, 9 insertions, 3 deletions

diff --git a/cmd/podman/remoteclientconfig/configfile.go b/cmd/podman/remoteclientconfig/configfile.go
index aa3e82a31..06e82b186 100644
--- a/cmd/podman/remoteclientconfig/configfile.go
+++ b/cmd/podman/remoteclientconfig/configfile.go
@@ -22,7 +22,7 @@ func ReadRemoteConfig(reader io.Reader) (*RemoteConfig, error) {
 	// We need to validate each remote connection has fields filled out
 	for name, conn := range remoteConfig.Connections {
 		if len(conn.Destination) < 1 {
-			return nil, errors.Errorf("connection %s has no destination defined", name)
+			return nil, errors.Errorf("connection %q has no destination defined", name)
 		}
 	}
 	return &remoteConfig, err
diff --git a/pkg/adapter/client.go b/pkg/adapter/client.go
index 6feae5400..694d9f961 100644
--- a/pkg/adapter/client.go
+++ b/pkg/adapter/client.go
@@ -15,8 +15,10 @@ import (
 var remoteEndpoint *Endpoint
 
 func (r RemoteRuntime) RemoteEndpoint() (remoteEndpoint *Endpoint, err error) {
-	remoteConfigConnections, _ := remoteclientconfig.ReadRemoteConfig(r.config)
-
+	remoteConfigConnections, err := remoteclientconfig.ReadRemoteConfig(r.config)
+	if errors.Cause(err) != remoteclientconfig.ErrNoConfigationFile {
+		return nil, err
+	}
 	// If the user defines an env variable for podman_varlink_bridge
 	// we use that as passed.
 	if bridge := os.Getenv("PODMAN_VARLINK_BRIDGE"); bridge != "" {
@@ -47,6 +49,10 @@ func (r RemoteRuntime) RemoteEndpoint() (remoteEndpoint *Endpoint, err error) {
 		if err != nil {
 			return nil, err
 		}
+		if len(rc.Username) < 1 {
+			logrus.Debugf("Connection has no username, using current user %q", r.cmd.RemoteUserName)
+			rc.Username = r.cmd.RemoteUserName
+		}
 		remoteEndpoint, err = newBridgeConnection("", rc, r.cmd.LogLevel)
 		//	last resort is to make a socket connection with the default varlink address for root user
 	} else {