Only reload apache only when strictly necessary
This commit is contained in:
Marc Aymerich
parent
79ae1a79b0
commit
525d38750e
12
TODO.md
12
TODO.md
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@ -286,6 +286,14 @@ https://code.djangoproject.com/ticket/24576
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# Change crons, create cron for deleted webapps and users
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* UNIFY PHP FPM settings name
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# virtualhost name name-account?
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# php version update should trigger webiste upgrade (wrapper name/fpm config for apache), public root and other config also needs apache to execute
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* add a delay to changes on the webserver apache to no overwelm it with backend executions?
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# Delete webapps deletes wrapper that may be used for other sites, maybe merging webapps is a bad idea after all?
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* replace unique_name by natural_key?
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* do not require contact or create default
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* send signals for backend triggers
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* monitor resources with multiple backends not possible to identify the correct last execution, allow to specify backends only once or change backend.model = 'resources.MonitorData'
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* force ignore slack billing period overridig when billing
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* fpm reload starts new pools?
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* more processes for webmail, or use fpm pool
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* rename resource.monitors to resource.backends ?
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* abstract model classes enabling overriding?
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@ -142,27 +142,28 @@ def collect(instance, action, **kwargs):
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operations = kwargs.get('operations', set())
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route_cache = kwargs.get('route_cache', {})
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for backend_cls in ServiceBackend.get_backends():
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# Check if there exists a related instance to be executed for this backend
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# Check if there exists a related instance to be executed for this backend and action
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instances = []
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if backend_cls.is_main(instance):
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instances = [(instance, action)]
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else:
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candidate = backend_cls.get_related(instance)
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if candidate:
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if candidate.__class__.__name__ == 'ManyRelatedManager':
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if 'pk_set' in kwargs:
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# m2m_changed signal
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candidates = kwargs['model'].objects.filter(pk__in=kwargs['pk_set'])
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if action in backend_cls.actions:
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if backend_cls.is_main(instance):
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instances = [(instance, action)]
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else:
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candidate = backend_cls.get_related(instance)
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if candidate:
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if candidate.__class__.__name__ == 'ManyRelatedManager':
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if 'pk_set' in kwargs:
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# m2m_changed signal
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candidates = kwargs['model'].objects.filter(pk__in=kwargs['pk_set'])
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else:
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candidates = candidate.all()
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else:
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candidates = candidate.all()
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else:
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candidates = [candidate]
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for candidate in candidates:
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# Check if a delete for candidate is in operations
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delete_mock = Operation(backend_cls, candidate, Operation.DELETE)
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if delete_mock not in operations:
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# related objects with backend.model trigger save()
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instances.append((candidate, Operation.SAVE))
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candidates = [candidate]
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for candidate in candidates:
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# Check if a delete for candidate is in operations
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delete_mock = Operation(backend_cls, candidate, Operation.DELETE)
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if delete_mock not in operations:
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# related objects with backend.model trigger save()
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instances.append((candidate, Operation.SAVE))
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for selected, iaction in instances:
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# Maintain consistent state of operations based on save/delete behaviour
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# Prevent creating a deleted selected by deleting existing saves
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@ -10,11 +10,9 @@ def run_monitor(modeladmin, request, queryset):
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async = modeladmin.model.monitor.__defaults__[0]
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logs = set()
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for resource in queryset:
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results = resource.monitor()
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rlogs = resource.monitor()
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if not async:
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for result in results:
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if hasattr(result, 'log'):
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logs.add(str(result.log.pk))
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logs = logs.union(set([str(rlog.pk) for rlog in rlogs]))
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modeladmin.log_change(request, resource, _("Run monitors"))
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if async:
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num = len(queryset)
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@ -42,7 +42,7 @@ class ServiceMonitor(ServiceBackend):
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from .models import MonitorData
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try:
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return MonitorData.objects.filter(content_type=self.content_type,
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object_id=object_id).latest()
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monitor=type(self).get_name(), object_id=object_id).latest()
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except MonitorData.DoesNotExist:
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return None
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@ -12,7 +12,7 @@ def monitor(resource_id, ids=None, async=True):
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resource = Resource.objects.get(pk=resource_id)
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resource_model = resource.content_type.model_class()
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operations = []
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logs = []
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# Execute monitors
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for monitor_name in resource.monitors:
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backend = ServiceMonitor.get_backend(monitor_name)
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@ -28,10 +28,9 @@ def monitor(resource_id, ids=None, async=True):
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monitorings = []
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for obj in model.objects.filter(**kwargs):
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op = Operation(backend, obj, Operation.MONITOR)
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operations.append(op)
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monitorings.append(op)
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# TODO async=True only when running with celery
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Operation.execute(monitorings, async=async)
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logs += Operation.execute(monitorings, async=async)
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kwargs = {'id__in': ids} if ids else {}
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# Update used resources and trigger resource exceeded and revovery
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@ -50,4 +49,4 @@ def monitor(resource_id, ids=None, async=True):
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op = Operation(backend, obj, Operation.RECOVERY)
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triggers.append(op)
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Operation.execute(triggers)
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return operations
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return logs
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@ -33,7 +33,7 @@ class PHPBackend(WebAppServiceMixin, ServiceController):
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echo -e "${fpm_config}" | diff -N -I'^\s*;;' %(fpm_path)s -
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} || {
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echo -e "${fpm_config}" > %(fpm_path)s
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UPDATEDFPM=1
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UPDATED_FPM=1
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}
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""") % context
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)
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@ -46,7 +46,10 @@ class PHPBackend(WebAppServiceMixin, ServiceController):
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echo -e "${wrapper}" | diff -N -I'^\s*#' %(wrapper_path)s -
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} || {
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echo -e "${wrapper}" > %(wrapper_path)s
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[[ ${UPDATED_APACHE} -eq 0 ]] && UPDATED_APACHE=%(is_mounted)i
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if [[ %(is_mounted)i -eq 1 ]]; then
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# Reload fcgid wrapper
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pkill -SIGHUP -U %(user)s "^%(php_binary)s$" || true
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fi
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}
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""") % context
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)
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@ -93,15 +96,14 @@ class PHPBackend(WebAppServiceMixin, ServiceController):
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def commit(self):
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self.append(textwrap.dedent("""
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if [[ $UPDATEDFPM == 1 ]]; then
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if [[ $UPDATED_FPM -eq 1 ]]; then
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service php5-fpm reload
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service php5-fpm start
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fi
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# Coordinate apache restart with apache backend
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locked=1
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state="$(grep -v 'PHPBackend' /dev/shm/restart.apache2)" || locked=0
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echo -n "$state" > /dev/shm/restart.apache2
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if [[ $UPDATED_APACHE == 1 ]]; then
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if [[ $UPDATED_APACHE -eq 1 ]]; then
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if [[ $locked == 0 ]]; then
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service apache2 reload
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else
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@ -151,18 +153,19 @@ class PHPBackend(WebAppServiceMixin, ServiceController):
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init_vars = [ "-d %s='%s'" % (k, v.replace("'", '"')) for k,v in init_vars.items() ]
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init_vars = ' \\\n '.join(init_vars)
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context.update({
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'php_binary': os.path.normpath(settings.WEBAPPS_PHP_CGI_BINARY_PATH % context),
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'php_binary_path': os.path.normpath(settings.WEBAPPS_PHP_CGI_BINARY_PATH % context),
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'php_rc': os.path.normpath(settings.WEBAPPS_PHP_CGI_RC_DIR % context),
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'php_ini_scan': os.path.normpath(settings.WEBAPPS_PHP_CGI_INI_SCAN_DIR % context),
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'php_init_vars': init_vars,
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})
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context['php_binary'] = os.path.basename(context['php_binary_path'])
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return textwrap.dedent("""\
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#!/bin/sh
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# %(banner)s
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export PHPRC=%(php_rc)s
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export PHP_INI_SCAN_DIR=%(php_ini_scan)s
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export PHP_FCGI_MAX_REQUESTS=%(max_requests)s
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exec %(php_binary)s %(php_init_vars)s""") % context
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exec %(php_binary_path)s %(php_init_vars)s""") % context
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def get_fcgid_cmd_options(self, webapp, context):
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maps = {
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@ -88,7 +88,7 @@ class Processes(AppOption):
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# FPM pm.max_children
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verbose_name = _("Number of processes")
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help_text = _("Maximum number of children that can be alive at the same time (a number between 0 and 9).")
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regex = r'^[0-9]$'
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regex = r'^[0-9]{1,2}$'
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group = AppOption.PROCESS
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@ -49,7 +49,7 @@
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<div id="branding"><a href="/admin/"></a><h1 id="site-name"><a href="/admin/">Pangea Hosting Management <span class="version">0.0.1a1</span></a></h1></div>
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{% for item in menu.children %}{% admin_tools_render_menu_item item forloop.counter %}{% endfor %}
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<span style="float:right;color:grey;padding:10px;font-size:11px;">{% trans 'Welcome' %},
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{% url 'admin:users_user_change' user.pk as user_change_url %}
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{% url 'admin:accounts_account_change' user.pk as user_change_url %}
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<a href="{{ user_change_url }}" style="color:#555;"><strong>{% filter force_escape %}{% firstof user.get_short_name user.username %}{% endfilter %}</strong></a>.
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<a href="{% url 'admin:password_change' %}" style="color:#555;">Change password</a> / <a href="{% url 'admin:logout' %}" style="color:#555;">Log out</a></span>
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</div>
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