Enterprise Distributed Application Service：Create a hybrid cloud ECS cluster

Preparations

• Create a VPC with an IPv4 CIDR block.

• Activate Express Connect. For more information, see Express Connect.

• Apply for a dedicated connection over Express Connect to connect your data center to a VPC of Alibaba Cloud. For more information, see Create and manage a dedicated connection over an Express Connect circuit.

• Make sure the servers in your data center meet the following requirements:

  • Operating system: CentOS 7.

  • Form: physical or virtual machines. Docker containers are not supported.

  • Hardware: no special requirements for CPU and memory.

Step 1: Create a hybrid cloud cluster

1. Log on to the EDAS console.

2. In the left-side navigation pane, choose Resource Management > ECS Clusters.

3. On the ECS Cluster page, select the region in which you want to create a cluster from the Region drop-down list in the top navigation bar, and select the microservice namespace in which you want to create a cluster from the Microservice Namespace drop-down list in the upper part. Then, click Create Cluster.

   You can select a microservice namespace on this page or in the Create Cluster dialog box.Microservice Namespace

   • If environment isolation is required, select the microservice namespace that you create.Microservice Namespace

   • If environment isolation is not required, select Default from the Microservice Namespace drop-down list.

4. In the Create Cluster dialog box, set the cluster parameters and click Create.

   

   Parameter	Description
   Cluster Name	The name of the cluster. The name can be up to 64 characters in length and can contain letters, digits, underscores (_), and periods (.).
   Cluster	Select Non-Alibaba Cloud.
   Cluster Type	This parameter can be set only to ECS, and you cannot change the value.
   Cluster Network Type	If you set the Cluster parameter to Non-Alibaba Cloud, you can set this parameter only to VPC.
   VPC Network	After you select VPC, you must select a created VPC.
   Microservices Namespace	The microservice namespace to which the cluster belongs.Microservice Namespace By default, the microservice namespace selected on the ECS Clusters page is displayed.Microservice Namespace If no microservice namespace is selected, Default is displayed in the Microservice Namespaces drop-down list.Microservice Namespace Set this parameter as needed.
   Resource Groups	The resource group to which the cluster belongs. The resource group is created by the current Alibaba Cloud account in the Resource Management console. This group is not an EDAS resource group. If no resource groups are available, click Create Resource Group to go to the Resource Management console and create a resource group. For more information, see Create a resource group.

   After a cluster is created, Created appears on the top of the page, and the cluster appears in the cluster list.

   Note

   The created cluster is only an empty cluster. You must add ECS instances and servers from your data center to the cluster.

Step 2: Add instances to the hybrid cloud cluster

You must add ECS instances, servers from your data center, and servers from other cloud service providers to the newly created empty hybrid cloud cluster.

1. On the ECS Cluster page, click the ID of the newly created cluster.

2. On the Cluster Details page, click Add Existing ECS in the upper-right corner of the ECS Instance section.

3. In the Add ECS Instance dialog box, copy the command that is used to install EDAS Agent.

   Note

   To add instances to a hybrid cloud cluster, you must manually install EDAS Agent on the instances by using the command-line interface (CLI).

4. Log on to your ECS instance or a server in your data center as the root user, and paste and run the command that is used to install EDAS Agent.

   Then, the ECS instance or server is added to the cluster.

Step 3: Enable required ports

To ensure that related capabilities provided by EDAS are available for your applications in the hybrid cloud cluster, you must enable the following ports for the instances after you add them to the cluster:

• 8182: this port that is used to capture basic monitoring and trace monitoring logs.

• 12200 to 12300: the ports that are used to complete remote procedure calls (RPCs).

• 65000 to 65535: the web ports.

The methods of enabling ports vary based on the instance types in the cluster.

• ECS instances: For more information about how to enable the ports, see Add a security group rule.

• Servers from data centers or other cloud service providers: For more information about how to enable the ports, see the corresponding solutions.

Verify the result

1. Return to the ECS Cluster page. In the cluster list, view the values of Cluster Type, Cluster Status, and Instances of the newly created cluster.

   • If the value of Cluster Type is ECS Clusters (Non-Alibaba Cloud) and the value of Cluster Status is Normal, the cluster is created.

   • If the value of Instances is the same as the number of added instances, the instances are added.

2. Click the ID of the cluster that you want to view. The Cluster Details page appears. In the ECS Instance section, view the Instance ID/Name and Health Check parameters of the added instances.

   If the value of Health Check of an instance is Running, the status of the instance is normal.