Pass session environment variables to command

CHANGELOG

@@ -1,2 +1,5 @@
+0.1.1:
+- Pass session environment variables to command
+
 0.1.0:
 - Initial release

CONFIGURATION.md

@@ -26,8 +26,9 @@ portals:
     command: ps -aux
     host:
       - localhost:19003
+      - :19004 # Expose port 19004 to the internet
   system monitor:
     command: htop
     host:
-      - localhost:19004
+      - localhost:19005
 ```

pkg/gate/portal.go

@@ -61,6 +61,7 @@ func NewPortal(name string, address string, command []string) (*Portal, error) {
 			}
 
 			cmd := exec.CommandContext(cmdCtx, command[0], args...)
+			cmd.Env = sshSession.Environ()
 			cmd.Env = append(cmd.Env, fmt.Sprintf("TERM=%s", ptyReq.Term))
 
 			f, err := pty.Start(cmd)