def home(self):
listx = lxc.listx()
# return all containers sorted by status
# memory usage is excluded in this as it slows down the homepage
# quite a bit, they are retrieved later using AJAX.
all_containers = []
for status in ('RUNNING', 'FROZEN', 'STOPPED'):
all_containers.append({
'status': status.lower(),
'containers': [{
'name': container,
'memory_usage': 0, # I prefer to cache this one day
'settings': get_container_settings(container),
'bucket': get_bucket_token(container)
} for container in listx[status]]
})
return {
'all_containers': all_containers,
'dist': check_ubuntu(),
'host': socket.gethostname(),
'templates': get_templates_list(),
'storage_repos': self.settings['storage_repos'],
'auth': self.settings['auth.backend']
}
def refresh_memory(self):
name = self.request.matchdict['name']
if name == 'containers':
containers_running = lxc.running()
containers = []
for container in containers_running:
container = container.replace(' (auto)', '')
containers.append({
'name': container,
'memory_usage': memory_usage(container),
'settings': get_container_settings(container)
})
return containers
elif name == 'host':
return host_memory_usage()
return {'memory_usage': memory_usage(name)}
def edit_container(self):
"""
edit containers page and actions if form post request
"""
container = self.request.matchdict['container']
cfg = get_container_settings(container)
form = EditContainerForm(self.request.POST, container=container, **strip_empty_fields(cfg))
if self.request.method == 'POST':
if form.validate():
# when memory sliders are at maximum, unset them
if form.memlimit.data == TOTAL_HOST_MEMORY:
form.memlimit.data = ''
if form.swlimit.data == TOTAL_HOST_MEMORY * 2:
form.swlimit.data = ''
for field_name, field in form._fields.items():
# nothing changed, one is None, the other an empty string
# this happens with IntegerField + Optional() validator
if field.data is None and cfg[field_name] == '':
continue
# a field has changed, something needs to be saved
if field.data != cfg[field_name]:
if field_name == 'bucket':
machine = Machine.objects.get(name=container)
if machine:
# update bucket token
machine.bucket_token = field.data
machine.save()
else:
# create new record in machine table
Machine.objects.create(name=container, bucket_token=field.data)
self.session.flash('Bucket config for {} saved'.format(container), queue='success')
else:
# convert to lxc config values
if field_name == 'flags':
value = 'up' if field.data else 'down'
elif field_name == 'start_auto':
value = '1' if form.start_auto.data else '0'
else:
value = field.data
push_config_value(CGROUP_EXT[field_name][0], value, container=container)
self.session.flash(CGROUP_EXT[field_name][1], queue='success')
# re-read container configuration now to be coherent
cfg = get_container_settings(container)
form = EditContainerForm(container=container, **strip_empty_fields(cfg))
info = lxc.info(container)
return {
'form': form,
'container': container,
'infos': {
'status': info['state'],
'pid': info['pid'],
'memory_usage': memory_usage(container)
},
'settings': cfg,
'host_memory': TOTAL_HOST_MEMORY,
'storage_repos': self.settings['storage_repos']
}
