add django admin views

gatekeeper/admin.py

@@ -1 +1,51 @@
-# Register your models here.
+from django.contrib import admin
+
+from gatekeeper.models import (
+    AuthMethod, AuthMethodAllowedDomain, AuthMethodAllowedEmail,
+    GatekeeperGroup, GatekeeperIPAddress, GatekeeperUser,
+)
+
+
+class AuthMethodAdmin(admin.ModelAdmin):
+    list_display = ('name', 'display_name', 'auth_type', 'session_expiration_minutes', 'created', 'updated')
+    search_fields = ('name', 'display_name', 'auth_type')
+    list_filter = ('auth_type',)
+
+admin.site.register(AuthMethod, AuthMethodAdmin)
+
+
+class AuthMethodAllowedDomainAdmin(admin.ModelAdmin):
+    list_display = ('domain', 'auth_method', 'created', 'updated')
+    search_fields = ('domain', 'auth_method__name', 'auth_method__display_name')
+
+admin.site.register(AuthMethodAllowedDomain, AuthMethodAllowedDomainAdmin)
+
+
+class AuthMethodAllowedEmailAdmin(admin.ModelAdmin):
+    list_display = ('email', 'auth_method', 'created', 'updated')
+    search_fields = ('email', 'auth_method__name', 'auth_method__display_name')
+
+admin.site.register(AuthMethodAllowedEmail, AuthMethodAllowedEmailAdmin)
+
+
+class GatekeeperUserAdmin(admin.ModelAdmin):
+    list_display = ('username', 'email', 'created', 'updated')
+    search_fields = ('username', 'email')
+
+admin.site.register(GatekeeperUser, GatekeeperUserAdmin)
+
+
+class GatekeeperGroupAdmin(admin.ModelAdmin):
+    list_display = ('name', 'display_name', 'created', 'updated')
+    search_fields = ('name', 'display_name')
+    filter_horizontal = ('users',)
+
+admin.site.register(GatekeeperGroup, GatekeeperGroupAdmin)
+
+
+class GatekeeperIPAddressAdmin(admin.ModelAdmin):
+    list_display = ('address', 'prefix_length', 'action', 'auth_method', 'description', 'created', 'updated')
+    search_fields = ('address', 'description', 'auth_method__name', 'auth_method__display_name')
+    list_filter = ('action',)
+
+admin.site.register(GatekeeperIPAddress, GatekeeperIPAddressAdmin)