from app.plugins import PluginBase, Menu, MountPoint
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from django.shortcuts import render
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from django.contrib.auth.decorators import login_required
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from django.utils.translation import gettext as _
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import json, shutil
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def get_memory_stats():
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"""
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Get node total memory and memory usage (Linux only)
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https://stackoverflow.com/questions/17718449/determine-free-ram-in-python
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"""
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try:
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with open('/proc/meminfo', 'r') as mem:
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ret = {}
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tmp = 0
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for i in mem:
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sline = i.split()
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if str(sline[0]) == 'MemTotal:':
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ret['total'] = int(sline[1])
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elif str(sline[0]) in ('MemFree:', 'Buffers:', 'Cached:'):
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tmp += int(sline[1])
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ret['free'] = tmp
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ret['used'] = int(ret['total']) - int(ret['free'])
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ret['total'] *= 1024
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ret['free'] *= 1024
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ret['used'] *= 1024
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return ret
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except:
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return {}
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class Plugin(PluginBase):
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def main_menu(self):
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return [Menu(_("Diagnostic"), self.public_url(""), "fa fa-chart-pie fa-fw")]
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def app_mount_points(self):
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@login_required
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def diagnostic(request):
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# Disk space
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total_disk_space, used_disk_space, free_disk_space = shutil.disk_usage('./')
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template_args = {
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'title': 'Diagnostic',
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'total_disk_space': total_disk_space,
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'used_disk_space': used_disk_space,
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'free_disk_space': free_disk_space
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}
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# Memory (Linux only)
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memory_stats = get_memory_stats()
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if 'free' in memory_stats:
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template_args['free_memory'] = memory_stats['free']
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template_args['used_memory'] = memory_stats['used']
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template_args['total_memory'] = memory_stats['total']
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return render(request, self.template_path("diagnostic.html"), template_args)
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return [
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MountPoint('$', diagnostic)
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]
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