added side car proxy controle servers (wip)

packages/jupyter_command_launcher/README.md

@@ -0,0 +1,17 @@
+## Description
+A simple start command for launching anything via some proxy
+
+## Install
+We have not published this package to pypi, but you can install it with pip directly from github:
+```
+pip install git+https://github.com/fhswf/Jupyterhub-K8s.git@main#subdirectory=packages/jupyter_command_launcher
+```
+Using pip and requirements.txt, simple put the above link into the file:
+```
+package-one==1.9.4
+git+https://github.com/fhswf/Jupyterhub-K8s.git@main#subdirectory=packages/jupyter_command_launcher
+package-three==2.0.0
+numpy
+...
+```
+## copy right notice

packages/jupyter_command_launcher/jupyter_command_launcher/__init__.py

@@ -0,0 +1,30 @@
+import os
+import shutil
+from typing import List
+
+def resolve_env(s:str) -> str:
+    [s := s.replace("$"+k, v) for k, v in dict(os.environ).items()]
+    return s
+
+def resolve_envs(ss:List[str]) -> List[str]:
+    return list(map(resolve_env, ss))
+
+def start():
+    def launch_control_gui(port):
+        executable = "py_cmd_launcher_gui"
+        cmd = [
+            executable,
+            "--port=" + str(port),
+        ]
+        print("launching app", cmd)
+        return cmd
+
+    return {
+        "command": launch_control_gui,
+        "timeout": 300,
+        "new_browser_tab": False,
+        "launcher_entry": {
+            "title": "Sidecar Control GUI",
+        }
+    }
+

packages/jupyter_command_launcher/requirements.txt

@@ -0,0 +1 @@
+jupyter-server-proxy

packages/jupyter_command_launcher/setup.py

@@ -0,0 +1,33 @@
+from setuptools import find_packages, setup
+
+with open("README.md", encoding="utf8") as f:
+    readme = f.read()
+
+setup_args = dict(
+    name="jupyter_vscodeserver_proxy",
+    packages=find_packages(),
+    version='0.1.0',
+    description="JupyterHub jupyter server proxy for code-server",
+    long_description=open("README.md").read(),
+    long_description_content_type="text/markdown",
+    author="Max Kuhmichel, FH SWF",
+    author_email="[email protected]",
+    url="https://github.com/fhswf",
+    license="MIT",
+    python_requires=">=3.8",
+    include_package_data=True,
+    #package_data={"jupyter_vscodeserver_proxy": ["icons/*"]},
+    entry_points={"jupyter_serverproxy_servers": ["start_sidecar = jupyter_command_launcher:start"], 
+                  "jupyter_serverproxy_servers": ["stop_sidecar = jupyter_command_launcher:stop"] }
+)
+
+setup_args['install_requires'] = install_requires = []
+with open('requirements.txt') as f:
+    for line in f.readlines():
+        req = line.strip()
+        if not req or req.startswith(('-e', '#')):
+            continue
+        install_requires.append(req)
+
+if __name__ == '__main__':
+    setup(**setup_args)

packages/py_cmd_launcher/README.md

@@ -0,0 +1,18 @@
+## What
+Simple flask server to launch a system command. Used to API-ify container run scripts.
+This is not for usage in an unsave production setup, as there is not auth or encryption.
+Please only use this for internal networks such as contained kubernets pods, without external excess.
+
+## Install
+We have not published this package to pypi, but you can install it with pip directly from github:
+```
+pip install git+https://github.com/fhswf/Jupyterhub-K8s.git@main#subdirectory=packages/py_cmd_launcher
+```
+Using pip and requirements.txt, simple put the above link into the file:
+```
+package-one==1.9.4
+git+https://github.com/fhswf/Jupyterhub-K8s.git@main#subdirectory=packages/py_cmd_launcher
+package-three==2.0.0
+numpy
+...
+```

packages/py_cmd_launcher/py_cmd_launcher/app.py

@@ -0,0 +1,78 @@
+import logging
+from flask import Flask, jsonify
+import subprocess
+#import signal
+#import threading
+from argparse import ArgumentParser
+
+# Prozess-Handler
+process = None
+
+def create_app(script_path):
+    app = Flask(__name__)
+    #def run_script():
+    #    global process
+    #    process = subprocess.Popen(script_path, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+
+    @app.route('/start', methods=['GET'])
+    def start():
+        global process
+        if process is None:
+            # Start the script (in a new thread?)
+            #thread = threading.Thread(target=run_script)
+            #thread.start()
+            process = subprocess.Popen(script_path, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+            return jsonify({'status': 'Script started!'}), 201
+        else:
+            return jsonify({'status': 'Script is already running!'}), 204
+
+    @app.route('/stop', methods=['GET'])
+    def stop():
+        global process
+        if process is not None:
+            # Terminate the process
+            #os.kill(process.pid, signal.SIGTERM)
+            process.terminate()
+            process.wait()
+            process = None
+            return jsonify({'status': 'Script stopped!'}), 200
+        else:
+            return jsonify({'status': 'No script is running!'}), 204
+
+    @app.route('/status', methods=['GET'])
+    def status():
+        global process
+        if process is not None:
+            return jsonify({'status': 'Live'}), 200
+        else:
+            return jsonify({'status': 'Process was lost'}), 204
+
+    return app
+
+def main():
+    logging.captureWarnings(True)
+    log = logging.getLogger("py_cmd_launcher_main")
+    exit_code=0
+    try:
+        parser = ArgumentParser(description='Config')
+        parser.add_argument('--host', type=str, default='127.0.0.1',
+                            help='Host (default is 127.0.0.1)')
+        parser.add_argument('--port', type=int, default=4990,
+                            help='Port (default is 4990)')
+        parser.add_argument(name_or_flags='--script', help="command inside PATH to launch", default="bash -c 'echo no_command'")
+        parser.add_argument(name_or_flags='--debug', help="debug", default=False, type=bool)
+
+        args = parser.parse_args()
+
+        app = create_app(args.script)
+        app.run(host=args.host, port=args.port,debug=args.debug)
+
+    except Exception as e: 
+        exit_code = 1 # generic error
+    if exit_code is not None and exit_code > 0:
+        log.error(f"Exited with Status Code: {str(exit_code)}")
+        exit(exit_code)
+    log.info(f"Exited with Status Code: {str(exit_code)}")
+
+if __name__ == "__main__":
+    main()

packages/py_cmd_launcher/requirements.txt

@@ -0,0 +1 @@
+flask

packages/py_cmd_launcher/setup.py

@@ -0,0 +1,32 @@
+from setuptools import find_packages, setup
+
+setup_args = dict(
+    name='py_cmd_launcher',
+    packages=find_packages(),
+    version='1.0.0',
+    description="Simple flask server to launch a system command. Used to API-ify container run scripts",
+    long_description=open("README.md").read(),
+    long_description_content_type="text/markdown",
+    author="Max Kuhmichel, FH SWF",
+    author_email="[email protected]",
+    url="https://github.com/fhswf",
+    license="MIT",
+    python_requires=">=3.6",
+    #include_package_data=True,
+    entry_points={
+        'console_scripts': [
+            'py_cmd_launcher = py_cmd_launcher.app:main',
+            ]
+        },
+)
+
+setup_args['install_requires'] = install_requires = []
+with open('requirements.txt') as f:
+    for line in f.readlines():
+        req = line.strip()
+        if not req or req.startswith(('-e', '#')):
+            continue
+        install_requires.append(req)
+
+if __name__ == '__main__':
+    setup(**setup_args)

packages/py_cmd_launcher_gui/README.md

@@ -0,0 +1,18 @@
+## What
+Simple flask server to launch a system command. Used to API-ify container run scripts.
+This is not for usage in an unsave production setup, as there is not auth or encryption.
+Please only use this for internal networks such as contained kubernets pods, without external excess.
+
+## Install
+We have not published this package to pypi, but you can install it with pip directly from github:
+```
+pip install git+https://github.com/fhswf/Jupyterhub-K8s.git@main#subdirectory=packages/py_cmd_launcher
+```
+Using pip and requirements.txt, simple put the above link into the file:
+```
+package-one==1.9.4
+git+https://github.com/fhswf/Jupyterhub-K8s.git@main#subdirectory=packages/py_cmd_launcher
+package-three==2.0.0
+numpy
+...
+```