Configure and test Game Server Launch

Connected to hld2m-server successfully. Hardcoded `network_mode='host'`
Which isn't viable moving forwards.

Current Status:
Frontend : Active Servers show
Backend: Have configured admin.py utils.py and models.py
to grant us the ability to launch a docker image with a command
and tested client connection.
Server Online status works
launch, stop, remove (with force stop) works.

Signed-off-by: Pratyush Desai <pratyush.desai@liberta.casa>

webpanel/admin.py

@@ -13,8 +13,9 @@ def launch_container(modeladmin, request, queryset):
     for server in queryset:
         container_name = f"{server.game.name}_{server.ip_address}_{server.port}"
         result = launch_docker_container(
-            image=server.docker_image,
+            run_command=server.docker_run_command,
             name=container_name,
+            image=server.docker_image,
             ports={f"{server.port}/tcp": server.port},
         )
         server.sync_status()
@@ -38,7 +39,11 @@ def remove_container(modeladmin, request, queryset):
 
 @admin.register(Server)
 class ServerAdmin(admin.ModelAdmin):
-    list_display = ('game', 'ip_address', 'port', 'status', 'docker_image')
+    list_display = ('game', 'name', 'ip_address', 'port', 'status', 'docker_image', 'docker_run_command', 'command_args')
+    search_fields = ('game__name', 'ip_address', 'port')
+
+    def save_model(self, request, obj, form, change):
+        super().save_model(request, obj, form, change)
 
     def get_queryset(self, request):
         """Sync status of all servers before rendering the admin list view."""

webpanel/migrations/0004_server_name_alter_server_ip_address_and_more.py

@@ -0,0 +1,29 @@
+# Generated by Django 5.1.5 on 2025-01-20 13:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("webpanel", "0003_remove_game_description_alter_server_docker_image_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="server",
+            name="name",
+            field=models.CharField(default="hello world", max_length=100),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name="server",
+            name="ip_address",
+            field=models.GenericIPAddressField(null=True),
+        ),
+        migrations.AlterField(
+            model_name="server",
+            name="port",
+            field=models.PositiveIntegerField(null=True),
+        ),
+    ]

webpanel/migrations/0005_server_command_args_server_docker_run_command.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.1.5 on 2025-01-20 15:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("webpanel", "0004_server_name_alter_server_ip_address_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="server",
+            name="command_args",
+            field=models.TextField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name="server",
+            name="docker_run_command",
+            field=models.CharField(blank=True, max_length=500, null=True),
+        ),
+    ]

webpanel/models.py

@@ -15,9 +15,12 @@ class Server(models.Model):
     ]
 
     game = models.ForeignKey(Game, on_delete=models.CASCADE)
-    ip_address = models.GenericIPAddressField()
+    name = models.CharField(max_length=100)
-    port = models.PositiveIntegerField()
+    ip_address = models.GenericIPAddressField(null=True)
+    port = models.PositiveIntegerField(null=True)
     docker_image = models.CharField(max_length=200, null=True)
+    docker_run_command = models.CharField(max_length=500, blank=True, null=True) 
+    command_args = models.TextField(blank=True, null=True)
     status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='offline')
 
     def __str__(self):
@@ -38,3 +41,16 @@ class Server(models.Model):
         except Exception as e:
             self.status = "offline"  # Fallback in case of unexpected errors
         self.save()
+
+    def get_docker_run_command(self):
+            """Returns the docker run command, falling back to default image if not set."""
+            if self.docker_run_command:
+                # If a custom command is provided, use it
+                return self.docker_run_command
+            else:
+                # Otherwise, use the default image with any provided args TODO: Fixes reqd
+                #  add ports or remove the else logic. 
+                base_command = f"docker run -d {self.image}"
+                if self.command_args:
+                    base_command += " " + self.command_args
+                return base_command

webpanel/utils.py

@@ -1,14 +1,15 @@
 import docker
 
-def launch_docker_container(image, name, ports=None, environment=None):
+def launch_docker_container(image, run_command, name, ports):
     client = docker.from_env()
     try:
         container = client.containers.run(
-            image,
             name=name,
-            ports=ports,
+            image=image,
-            environment=environment,
+            # ports=ports,
-            detach=True
+            command=run_command,
+            detach=True,
+            network_mode='host'
         )
         return f"Container launched successfully: {container.id}"
     except docker.errors.APIError as e: