bc4ff8aed9
Fix adds additional helper methods to get information about host system from vcsim Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
309 lines
7.5 KiB
Python
Executable file
309 lines
7.5 KiB
Python
Executable file
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# (c) 2017 James Tanner (@jctanner) <tanner.jc@gmail.com>
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# Abhijeet Kasurde (@akasurde) <akasurde@redhat.com>
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#
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# Written by James Tanner <tanner.jc@gmail.com>
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# This file is part of Ansible
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#
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# Ansible 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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# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
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import os
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import psutil
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import socket
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import subprocess
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from flask import Flask
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from flask import jsonify
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from flask import request
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app = Flask(__name__)
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GOPATH = os.path.expanduser('/opt/gocode')
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VCSIMPATH = os.path.join(GOPATH, 'bin', 'vcsim')
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GOVCPATH = os.path.join(GOPATH, 'bin', 'govc')
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GOVCURL = None
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@app.route('/')
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def m_index():
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return 'vcsim controller'
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@app.route('/kill/<int:number>')
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def kill_one(number):
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"""Kill any arbitrary process id"""
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success = False
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e = None
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try:
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p = psutil.Process(number)
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p.terminate()
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success = True
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except Exception as e:
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pass
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return jsonify({'success': success, 'e': str(e)})
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@app.route('/killall')
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def kill_all():
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"""Kill ALL of the running vcsim pids"""
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results = []
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for x in psutil.pids():
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p = psutil.Process(x)
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if VCSIMPATH in p.cmdline():
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success = False
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e = None
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try:
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p.terminate()
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success = True
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except Exception as e:
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pass
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results.append(
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{'pid': x, 'cmdline': p.cmdline(),
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'success': success, 'e': str(e)}
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)
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return jsonify(results)
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@app.route('/spawn')
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def spawn_vcsim():
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"""Launch vcsim in a background process and return the pid+govcm_url"""
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global GOVCURL
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username = request.args.get('username') or 'user'
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password = request.args.get('password') or 'pass'
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hostname = request.args.get('hostname') or \
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socket.gethostbyname(socket.gethostname())
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port = request.args.get('port') or '443'
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port = int(port)
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# FIXME - enable tracing
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if request.args.get('trace'):
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trace = True
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else:
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trace = False
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# vcsim cli options and their default values
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cli_opts = [
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['app', 0],
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['cluster', 0],
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['dc', 1],
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['ds', 1],
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['folder', 1],
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['host', 3],
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['pg', 1],
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['pod', 1],
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['pool', 1],
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['vm', 2]
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]
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# useful for client govc commands
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govc_url = 'https://%s:%s@%s:%s' % (username, password, hostname, port)
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GOVCURL = govc_url
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# need these to run the service
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env = {
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'GOPATH': GOPATH,
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'GOVC_URL': govc_url,
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'GOVC_INSECURE': '1'
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}
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# build the command
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cmd = [
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VCSIMPATH,
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'-httptest.serve',
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'%s:%s' % (hostname, port),
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]
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for x in cli_opts:
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name = x[0]
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default = x[1]
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if request.args.get(name):
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default = request.args.get(name)
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cmd.append('-%s=%s' % (name, default))
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cmd = ' '.join(cmd)
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cmd += ' 2>&1 > vcsim.log'
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# run it with environment settings
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p = subprocess.Popen(
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cmd,
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env=env,
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shell=True
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)
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# return the relevant data
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pid = p.pid
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rdata = {
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'cmd': cmd,
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'pid': pid,
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'host': hostname,
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'port': port,
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'username': username,
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'password': password,
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'GOVC_URL': govc_url
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}
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return jsonify(rdata)
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@app.route('/govc_find')
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def govc_find():
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"""Run govc find and optionally filter results"""
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ofilter = request.args.get('filter') or None
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stdout_lines = _get_all_objs(ofilter=ofilter)
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return jsonify(stdout_lines)
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@app.route('/govc_vm_info')
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def get_govc_vm_info():
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"""Run govc vm info """
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vm_name = request.args.get('vm_name') or None
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vm_output = {}
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if vm_name:
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all_vms = [vm_name]
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else:
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# Get all VMs
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all_vms = _get_all_objs(ofilter='VM')
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for vm_name in all_vms:
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vm_info = _get_vm_info(vm_name=vm_name)
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name = vm_info.get('Name', vm_name)
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vm_output[name] = vm_info
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return jsonify(vm_output)
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@app.route('/govc_host_info')
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def get_govc_host_info():
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""" Run govc host.info """
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host_name = request.args.get("host_name") or None
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host_output = {}
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if host_name:
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all_hosts = [host_name]
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else:
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all_hosts = _get_all_objs(ofilter='H')
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for host_system in all_hosts:
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host_info = _get_host_info(host_name=host_system)
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name = host_info.get('Name', host_system)
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host_output[name] = host_info
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return jsonify(host_output)
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def _get_host_info(host_name=None):
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"""
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Get all information of host from vcsim
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:param vm_name: Name of host
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:return: Dictionary containing information about VM,
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where KEY represent attributes and VALUE represent attribute's value
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"""
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cmd = '%s host.info -host=%s 2>&1' % (GOVCPATH, host_name)
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host_info = {}
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if host_name is None:
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return host_info
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host_info = parse_govc_info(cmd)
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return host_info
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def _get_vm_info(vm_name=None):
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"""
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Get all information of VM from vcsim
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:param vm_name: Name of VM
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:return: Dictionary containing information about VM,
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where KEY represent attributes and VALUE represent attribute's value
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"""
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cmd = '%s vm.info %s 2>&1' % (GOVCPATH, vm_name)
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vm_info = {}
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if vm_name is None:
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return vm_info
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vm_info = parse_govc_info(cmd)
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return vm_info
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def parse_govc_info(cmd):
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"""
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Helper function to parse output of govc info commands
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:param cmd: command variable to run and parse output for
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:return: Dictionary containing information about object
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"""
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so, se = run_cmd(cmd)
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stdout_lines = so.splitlines()
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info = {}
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for line in stdout_lines:
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if ":" in line:
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key, value = line.split(":", 1)
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key = key.lstrip()
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info[key] = value.strip()
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return info
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def _get_all_objs(ofilter=None):
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"""
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Get all VM Objects from vcsim
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:param ofilter: Specify which object to get
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:return: list of Object specified by ofilter
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"""
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cmd = '%s find ' % GOVCPATH
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filter_mapping = dict(VA='a', CCR='c', DC='d', F='f', DVP='g', H='h',
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VM='m', N='n', ON='o', RP='p', CR='r', D='s', DVS='w')
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if ofilter:
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type_filter = filter_mapping.get(ofilter, '')
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if type_filter != '':
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cmd += '-type %s ' % type_filter
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cmd += "2>&1"
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so, se = run_cmd(cmd)
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stdout_lines = so.splitlines()
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return stdout_lines
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def run_cmd(cmd):
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"""
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Helper Function to run commands
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:param cmd: Command string to execute
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:return: StdOut and StdErr in string format
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"""
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global GOVCURL
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env = {
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'GOPATH': GOPATH,
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'GOVC_URL': GOVCURL,
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'GOVC_INSECURE': '1'
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}
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p = subprocess.Popen(
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cmd,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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env=env,
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shell=True
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)
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(so, se) = p.communicate()
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return so, se
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if __name__ == "__main__":
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app.run(debug=False, host='0.0.0.0')
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