feat: 添加组件监控;TerminalModel添加type字段; (#5206)

* feat: 添加组件监控;TerminalModel添加type字段;

* feat: Terminal序列类添加type字段

* feat: Terminal序列类添加type字段为只读

* feat: 修改组件status文案

* feat: 取消上传组件状态序列类count字段

* reactor: 修改termina/models目录结构

* feat: 修改ComponentTypeChoices

* feat: 取消考虑CoreComponent类型

* feat: 修改Terminal status判断逻辑

* feat: 终端列表添加status过滤; 组件状态序列类添加default值

* feat: 添加PrometheusMetricsAPI

* feat: 修改PrometheusMetricsAPI

Co-authored-by: Bai <bugatti_it@163.com>

apps/terminal/migrations/0030_terminal_type.py

@@ -0,0 +1,42 @@
+# Generated by Django 3.1 on 2020-12-10 07:05
+
+from django.db import migrations, models
+
+TERMINAL_TYPE_KOKO = 'koko'
+TERMINAL_TYPE_GUACAMOLE = 'guacamole'
+TERMINAL_TYPE_OMNIDB = 'omnidb'
+
+
+def migrate_terminal_type(apps, schema_editor):
+    terminal_model = apps.get_model("terminal", "Terminal")
+    db_alias = schema_editor.connection.alias
+    terminals = terminal_model.objects.using(db_alias).all()
+    for terminal in terminals:
+        name = terminal.name.lower()
+        if 'koko' in name:
+            _type = TERMINAL_TYPE_KOKO
+        elif 'gua' in name:
+            _type = TERMINAL_TYPE_GUACAMOLE
+        elif 'omnidb' in name:
+            _type = TERMINAL_TYPE_OMNIDB
+        else:
+            _type = TERMINAL_TYPE_KOKO
+        terminal.type = _type
+    terminal_model.objects.bulk_update(terminals, ['type'])
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('terminal', '0029_auto_20201116_1757'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='terminal',
+            name='type',
+            field=models.CharField(choices=[('koko', 'KoKo'), ('guacamole', 'Guacamole'), ('omnidb', 'OmniDB')], default='koko', max_length=64, verbose_name='type'),
+            preserve_default=False,
+        ),
+        migrations.RunPython(migrate_terminal_type)
+    ]