[management] Store connected proxies in DB (#5472)

Co-authored-by: mlsmaycon <mlsmaycon@gmail.com>

management/internals/modules/reverseproxy/proxy/proxy.go

@@ -0,0 +1,20 @@
+package proxy
+
+import "time"
+
+// Proxy represents a reverse proxy instance
+type Proxy struct {
+	ID             string    `gorm:"primaryKey;type:varchar(255)"`
+	ClusterAddress string    `gorm:"type:varchar(255);not null;index:idx_proxy_cluster_status"`
+	IPAddress      string    `gorm:"type:varchar(45)"`
+	LastSeen       time.Time `gorm:"not null;index:idx_proxy_last_seen"`
+	ConnectedAt    *time.Time
+	DisconnectedAt *time.Time
+	Status         string `gorm:"type:varchar(20);not null;index:idx_proxy_cluster_status"`
+	CreatedAt      time.Time
+	UpdatedAt      time.Time
+}
+
+func (Proxy) TableName() string {
+	return "proxies"
+}