Update websockify-related tasks

HACKING/launch_env.sh

@@ -3,4 +3,4 @@ podman run --rm -d --network=proxstar --name=proxstar-redis redis:alpine
 podman run --rm -d --network=proxstar --name=proxstar-postgres -e POSTGRES_PASSWORD=changeme -v ./HACKING/proxstar-postgres/volume:/var/lib/postgresql/data:Z proxstar-postgres
 podman run --rm -d --network=proxstar --name=proxstar-rq-scheduler  --env-file=HACKING/.env --entrypoint ./start_scheduler.sh proxstar
 podman run --rm -d --network=proxstar --name=proxstar-rq  --env-file=HACKING/.env --entrypoint ./start_worker.sh proxstar
-podman run --rm -d --network=proxstar --name=proxstar -p 8000:8000 --env-file=HACKING/.env --entrypoint='["python3", "wsgi.py"]' proxstar
+podman run --rm -it --network=proxstar --name=proxstar -p 8000:8000 -p 8081:8081 --env-file=HACKING/.env --entrypoint='["python3", "wsgi.py"]' proxstar

HACKING/stop_env.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
-podman stop proxstar
-podman stop proxstar-rq
-podman stop proxstar-rq-scheduler
+podman kill proxstar
+podman kill proxstar-rq
+podman kill proxstar-rq-scheduler
 podman stop proxstar-redis
 podman stop proxstar-postgres

proxstar/__init__.py

@@ -125,6 +125,7 @@ if 'process_expiring_vms' not in scheduler:
     logging.info('adding process expiring VMs task to scheduler')
     scheduler.cron('0 5 * * *', id='process_expiring_vms', func=process_expiring_vms_task)
 
+# FIXME (willnilges): is this operating in the right container?
 if 'cleanup_vnc' not in scheduler:
     logging.info('adding cleanup VNC task to scheduler')
     scheduler.schedule(
@@ -134,7 +135,6 @@ if 'cleanup_vnc' not in scheduler:
         interval=3600,
     )
 
-
 def add_rq_dashboard_auth(blueprint):
     @blueprint.before_request
     @auth.oidc_auth
@@ -575,29 +575,34 @@ def allowed_users(user):
 @app.route('/console/cleanup', methods=['POST'])
 def cleanup_vnc():
     if request.form['token'] == app.config['VNC_CLEANUP_TOKEN']:
-        for target in get_vnc_targets():
-            tunnel = next(
-                (tunnel for tunnel in ssh_tunnels if tunnel.local_bind_port == int(target['port'])),
-                None,
-            )
-            if tunnel:
-                if not next(
-                    (
-                        conn
-                        for conn in psutil.net_connections()
-                        if conn.laddr[1] == int(target['port']) and conn.status == 'ESTABLISHED'
-                    ),
-                    None,
-                ):
-                    try:
-                        tunnel.stop()
-                    except:
-                        pass
-                    ssh_tunnels.remove(tunnel)
-                    delete_vnc_target(target['port'])
+        with open(app.config['WEBSOCKIFY_TARGET_FILE'], 'w') as targets:
+            targets.truncate()
             return '', 200
-    else:
     return '', 403
+    # if request.form['token'] == app.config['VNC_CLEANUP_TOKEN']:
+    #     for target in get_vnc_targets():
+    #         tunnel = next(
+    #             (tunnel for tunnel in ssh_tunnels if tunnel.local_bind_port == int(target['port'])),
+    #             None,
+    #         )
+    #         if tunnel:
+    #             if not next(
+    #                 (
+    #                     conn
+    #                     for conn in psutil.net_connections()
+    #                     if conn.laddr[1] == int(target['port']) and conn.status == 'ESTABLISHED'
+    #                 ),
+    #                 None,
+    #             ):
+    #                 try:
+    #                     tunnel.stop()
+    #                 except:
+    #                     pass
+    #                 ssh_tunnels.remove(tunnel)
+    #                 delete_vnc_target(target['port'])
+    #     return '', 200
+    # else:
+    #     return '', 403
 
 
 @app.route('/template/<string:template_id>/disk')

proxstar/tasks.py

@@ -227,8 +227,14 @@ def setup_template_task(template_id, name, user, ssh_key, cores, memory):
 
 
 def cleanup_vnc_task():
+    """Removes all open VNC sessions. This runs in the RQ worker, and so
+    needs to be routed properly via the Proxstar API
+    TODO (willnilges): Use API, track the task IDs, and kill only the finished
+    ones every couple of minutes
+    https://github.com/ComputerScienceHouse/proxstar/issues/153
+    """
     requests.post(
-        'https://{}/console/cleanup'.format(app.config['SERVER_NAME']),
+        f'https://{app.config["VNC_HOST"]}/console/cleanup',
         data={'token': app.config['VNC_CLEANUP_TOKEN']},
         verify=False,
     )

proxstar/vnc.py

@@ -32,16 +32,18 @@ def get_vnc_targets():
             target_dict = {}
             values = line.strip().split(':')
             target_dict['token'] = values[0]
-            target_dict['host'] = values[1] + values[2]
+            target_dict['host'] = f'{values[1].strip()}:{values[2]}'
             targets.append(target_dict)
         target_file.close()
     return targets
 
 def add_vnc_target(node, port):
     # TODO (willnilges): This doesn't throw an error if the target file is wrong.
+    # TODO (willnilges): This will duplicate targets
     targets = get_vnc_targets()
     target = next((target for target in targets if target['host'] == f'{node}:{port}'), None)
     if target:
+        print('Host is already in the targets file')
         return target['token']
     else:
         target_file = open(app.config['WEBSOCKIFY_TARGET_FILE'], 'a')