feat(gateway): add env variable to control tunnels domain

.env

@@ -43,8 +43,12 @@ SHELLHUB_DOMAIN=localhost
 # VALUES: A valid network name
 SHELLHUB_NETWORK=shellhub_network
 
+# Enable tunnels feature.
 SHELLHUB_TUNNELS=false
 
+# The domain used to create the tunnels. If empty, the [SHELLHUB_DOMAIN] will be used.
+SHELLHUB_TUNNELS_DOMAIN=
+
 # Specifies an alternative mirror URL for downloading the GeoIP databases. This
 # field takes precedence over SHELLHUB_MAXMIND_LICENSE; when both are
 # configured, SHELLHUB_MAXMIND_MIRROR will be used as the primary source for

docker-compose.yml

@@ -93,6 +93,7 @@ services:
     environment:
       - SHELLHUB_DOMAIN=${SHELLHUB_DOMAIN}
       - SHELLHUB_TUNNELS=${SHELLHUB_TUNNELS}
+      - SHELLHUB_TUNNELS_DOMAIN=${SHELLHUB_TUNNELS_DOMAIN}
       - SHELLHUB_VERSION=${SHELLHUB_VERSION}
       - SHELLHUB_SSH_PORT=${SHELLHUB_SSH_PORT}
       - SHELLHUB_PROXY=${SHELLHUB_PROXY}

gateway/config.go

@@ -14,6 +14,7 @@ type GatewayConfig struct {
 	Env                  string `env:"SHELLHUB_ENV"`
 	Domain               string `env:"SHELLHUB_DOMAIN,required" validate:"hostname"`
 	Tunnels              bool   `env:"SHELLHUB_TUNNELS,default=false"`
+	TunnelsDomain        string `env:"SHELLHUB_TUNNELS_DOMAIN"`
 	WorkerProcesses      string `env:"WORKER_PROCESSES,default=auto"`
 	MaxWorkerOpenFiles   int    `env:"MAX_WORKER_OPEN_FILES,default=0"`
 	MaxWorkerConnections int    `env:"MAX_WORKER_CONNECTIONS,default=16384"`

gateway/nginx/conf.d/shellhub.conf

@@ -643,7 +643,7 @@ server {
 }
 
 {{ if and $cfg.EnableEnterprise $cfg.Tunnels -}}
-{{ $DOMAIN := $cfg.Domain }}
+{{ $DOMAIN := or $cfg.TunnelsDomain $cfg.Domain }}
 server {
     {{ if and ($cfg.EnableAutoSSL) (ne $cfg.Env "development") -}}
     listen 443;