69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
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#!/usr/bin/env python3
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# bootstrap_http_server.py - PVC bootstrap HTTP server class
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# Part of the Parallel Virtual Cluster (PVC) system
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#
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# Copyright (C) 2018 Joshua M. Boniface <joshua@boniface.me>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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###############################################################################
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import http.server
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import socketserver
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import atexit
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import json
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LISTEN_PORT = 10080
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next_nodeid = 0
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def get_next_nodeid():
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global next_nodeid
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new_nodeid = next_nodeid + 1
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next_nodeid = new_nodeid
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return str(new_nodeid)
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class CheckinHandler(http.server.BaseHTTPRequestHandler):
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def do_GET(self):
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if self.path == '/node_checkin':
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# A node is checking in
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print('Node checking in...')
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# Get the next available ID
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node_id = get_next_nodeid()
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print('Assigned new node ID {}'.format(node_id))
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self.send_response(200)
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self.send_header("Content-type", "application/json")
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self.end_headers()
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pvcd_conf = 'test'
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install_script = """#!/bin/bash
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echo "Hello, world!"
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"""
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body = { 'node_id': node_id, 'pvcd_conf': pvcd_conf, 'install_script': install_script }
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self.wfile.write(json.dumps(body).encode('ascii'))
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else:
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self.send_error(404)
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httpd = socketserver.TCPServer(("", LISTEN_PORT), CheckinHandler, bind_and_activate=False)
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httpd.allow_reuse_address = True
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httpd.server_bind()
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httpd.server_activate()
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def cleanup():
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httpd.shutdown()
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atexit.register(cleanup)
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print("serving at port", LISTEN_PORT)
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httpd.serve_forever()
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