201 lines
7.5 KiB
Python
201 lines
7.5 KiB
Python
from django.contrib import admin, messages
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from django.utils.html import escape
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from django.utils.safestring import mark_safe
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from django.utils.translation import ugettext_lazy as _
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from orchestra.admin import ExtendedModelAdmin, ChangeViewActionsMixin
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from orchestra.admin.utils import admin_link, admin_date, admin_colored, display_mono, display_code
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from orchestra.plugins.admin import display_plugin_field
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from . import settings, helpers
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from .actions import retry_backend, orchestrate
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from .backends import ServiceBackend
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from .forms import RouteForm
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from .models import Server, Route, BackendLog, BackendOperation
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from .utils import retrieve_state
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from .widgets import RouteBackendSelect
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STATE_COLORS = {
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BackendLog.RECEIVED: 'darkorange',
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BackendLog.TIMEOUT: 'red',
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BackendLog.STARTED: 'blue',
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BackendLog.SUCCESS: 'green',
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BackendLog.FAILURE: 'red',
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BackendLog.ERROR: 'red',
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BackendLog.REVOKED: 'magenta',
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BackendLog.NOTHING: 'green',
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}
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class RouteAdmin(ExtendedModelAdmin):
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list_display = (
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'display_backend', 'host', 'match', 'display_model', 'display_actions', 'async',
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'is_active'
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)
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list_editable = ('host', 'match', 'async', 'is_active')
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list_filter = ('host', 'is_active', 'async', 'backend')
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list_prefetch_related = ('host',)
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ordering = ('backend',)
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add_fields = ('backend', 'host', 'match', 'async', 'is_active')
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change_form = RouteForm
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actions = (orchestrate,)
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change_view_actions = actions
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BACKEND_HELP_TEXT = helpers.get_backends_help_text(ServiceBackend.get_backends())
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DEFAULT_MATCH = {
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backend.get_name(): backend.default_route_match for backend in ServiceBackend.get_backends()
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}
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display_backend = display_plugin_field('backend')
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def display_model(self, route):
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try:
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return escape(route.backend_class.model)
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except KeyError:
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return "<span style='color: red;'>NOT AVAILABLE</span>"
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display_model.short_description = _("model")
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display_model.allow_tags = True
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def display_actions(self, route):
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try:
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return '<br>'.join(route.backend_class.get_actions())
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except KeyError:
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return "<span style='color: red;'>NOT AVAILABLE</span>"
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display_actions.short_description = _("actions")
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display_actions.allow_tags = True
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def formfield_for_dbfield(self, db_field, **kwargs):
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""" Provides dynamic help text on backend form field """
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if db_field.name == 'backend':
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kwargs['widget'] = RouteBackendSelect(
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'this.id', self.BACKEND_HELP_TEXT, self.DEFAULT_MATCH)
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field = super(RouteAdmin, self).formfield_for_dbfield(db_field, **kwargs)
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if db_field.name == 'host':
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# Cache host choices
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request = kwargs['request']
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choices = getattr(request, '_host_choices_cache', None)
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if choices is None:
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request._host_choices_cache = choices = list(field.choices)
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field.choices = choices
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return field
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def get_form(self, request, obj=None, **kwargs):
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""" Include dynamic help text for existing objects """
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form = super(RouteAdmin, self).get_form(request, obj, **kwargs)
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if obj:
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form.base_fields['backend'].help_text = self.BACKEND_HELP_TEXT.get(obj.backend, '')
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return form
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def show_orchestration_disabled(self, request):
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if settings.ORCHESTRATION_DISABLE_EXECUTION:
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msg = _("Orchestration execution is disabled by <tt>ORCHESTRATION_DISABLE_EXECUTION</tt> setting.")
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self.message_user(request, mark_safe(msg), messages.WARNING)
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def changelist_view(self, request, extra_context=None):
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self.show_orchestration_disabled(request)
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return super(RouteAdmin, self).changelist_view(request, extra_context)
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def changeform_view(self, request, object_id=None, form_url='', extra_context=None):
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self.show_orchestration_disabled(request)
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return super(RouteAdmin, self).changeform_view(
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request, object_id, form_url, extra_context)
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class BackendOperationInline(admin.TabularInline):
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model = BackendOperation
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fields = ('action', 'instance_link')
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readonly_fields = ('action', 'instance_link')
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extra = 0
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can_delete = False
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class Media:
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css = {
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'all': ('orchestra/css/hide-inline-id.css',)
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}
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def instance_link(self, operation):
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link = admin_link('instance')(self, operation)
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if link == '---':
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return _("Deleted {0}").format(operation.instance_repr or '-'.join(
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(escape(operation.content_type), escape(operation.object_id))))
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return link
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instance_link.allow_tags = True
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instance_link.short_description = _("Instance")
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def has_add_permission(self, *args, **kwargs):
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return False
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def get_queryset(self, request):
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queryset = super(BackendOperationInline, self).get_queryset(request)
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return queryset.prefetch_related('instance')
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class BackendLogAdmin(ChangeViewActionsMixin, admin.ModelAdmin):
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list_display = (
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'id', 'backend', 'server_link', 'display_state', 'exit_code',
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'display_created', 'execution_time',
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)
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list_display_links = ('id', 'backend')
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list_filter = ('state', 'server', 'backend', 'operations__action')
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search_fields = ('script',)
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date_hierarchy = 'created_at'
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inlines = (BackendOperationInline,)
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fields = (
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'backend', 'server_link', 'state', 'display_script', 'mono_stdout',
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'mono_stderr', 'mono_traceback', 'exit_code', 'task_id', 'display_created',
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'execution_time'
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)
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readonly_fields = fields
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actions = (retry_backend,)
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change_view_actions = actions
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server_link = admin_link('server')
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display_created = admin_date('created_at', short_description=_("Created"))
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display_state = admin_colored('state', colors=STATE_COLORS)
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display_script = display_code('script')
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mono_stdout = display_mono('stdout')
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mono_stderr = display_mono('stderr')
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mono_traceback = display_mono('traceback')
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class Media:
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css = {
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'all': ('orchestra/css/pygments/github.css',)
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}
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def get_queryset(self, request):
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""" Order by structured name and imporve performance """
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qs = super(BackendLogAdmin, self).get_queryset(request)
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return qs.select_related('server').defer('script', 'stdout')
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def has_add_permission(self, *args, **kwargs):
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return False
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class ServerAdmin(ExtendedModelAdmin):
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list_display = ('name', 'address', 'os', 'display_ping', 'display_uptime')
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list_filter = ('os',)
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actions = (orchestrate,)
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change_view_actions = actions
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def display_ping(self, instance):
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return self._remote_state[instance.pk][0]
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display_ping.short_description = _("Ping")
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display_ping.allow_tags = True
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def display_uptime(self, instance):
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return self._remote_state[instance.pk][1]
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display_uptime.short_description = _("Uptime")
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display_uptime.allow_tags = True
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def get_queryset(self, request):
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""" Order by structured name and imporve performance """
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qs = super(ServerAdmin, self).get_queryset(request)
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if request.method == 'GET' and request.resolver_match.func.__name__ == 'changelist_view':
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self._remote_state = retrieve_state(qs)
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return qs
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admin.site.register(Server, ServerAdmin)
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admin.site.register(BackendLog, BackendLogAdmin)
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admin.site.register(Route, RouteAdmin)
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