Create a backend group

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Creating a backend group with a target group
Creating a backend group with a bucket

When creating a backend group, you can add two types of backends to it: backends with target groups and with Object Storage buckets.

Creating a backend group with a target group

Management console

CLI

In the management console, select the folder where the backend group will be created.
In the list of services, select Application Load Balancer.
In the left menu, select Backend groups.
Click Create backend group.
Enter the backend group name: test-backend-group.
Under Backends, click Add. Specify the backend settings:
1. Enter the backend name: test-backend-1.
2. Set the weight of the backend: 1.
3. Select the backend type: Target groups.
4. In the Target groups list, select test-target-group.
5. Set the Port: 80.
Expand the Load balancing settings field and set the parameters:
1. Threshold for panic mode: 90.
2. Locality aware routing: 90.
Expand the Protocol settings field and set the parameters:
1. Select the type: HTTP.
Click Add health check and configure the check:
1. Timeout: 1.
2. Interval: 1.
3. Healthy threshold: 3.
4. Unhealthy threshold: 10.
5. Type: HTTP.
6. Path: /.
Click Create.

If you don't have the Yandex.Cloud command line interface yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

View a description of the CLI command to create a backend group:
```
yc alb backend-group create --help
```

Create a backend group by running the command:

yc alb backend-group create <backend group name>

Command execution result:

id: a5dg2cv4ngne8575fb1p
name: test-backend-group
folder_id: aoerb349v3h4bupphtaf
created_at: "2021-02-11T20:46:21.688940670Z"

Add a backend and health check to the group:

yc alb backend-group add-http-backend \
--backend-group-name <backend group name> \
--name <name of the backend to be added> \
--weight <backend weight> \
--port <backend port> \
--target-group-id=<target group ID> \
--panic-threshold 90
--http-healthcheck port=80,healthy-threshold=10,unhealthy-threshold=15, \
timeout=10s,interval=2s,host=your-host.com,path=/ping

Command parameters:

--panic-threshold: The threshold for the panic mode.
--http-healthcheck: Parameters for checking the resource status.
- port: The port.
- healthy-threshold: The healthy threshold.
- unhealthy-threshold: The unhealthy threshold.
- timeout: The timeout.
- interval: The interval.
- host: The host address.
- path: The path.

Command execution result:

id: a5dqkr2mk3rr799f1npa
name: test-backend-group
folder_id: aoe197919j8elpeg1lkp
http:
  backends:
  - name: backend1
    backend_weight: "1"
    load_balancing_config:
      panic_threshold: "90"
    port: "80"
    target_groups:
      target_group_ids:
      - a5d2iap3nue9s3anblu6
    healthchecks:
    - timeout: 10s
      interval: 2s
      healthy_threshold: "10"
      unhealthy_threshold: "15"
      healthcheck_port: "80"
      http:
        host: your-host.com
        path: /ping
created_at: "2021-02-11T20:46:21.688940670Z"

Creating a backend group with a bucket

Warning

To use a bucket as a backend, grant public access to the list of objects in the bucket and permission to read them.

Management console

In the management console, select the folder where the backend group will be created.
In the list of services, select Application Load Balancer.
In the left menu, select Backend groups.
Click Create backend group.
Enter the backend group name: test-backend-group.
Under Backends, click Add. Specify the backend settings:
1. Enter the backend name: test-backend-1.
2. Set the weight of the backend: 1.
3. Select the backend type: Bucket.
4. Select the bucket that you want to use as a backend.
Click Create.

Create a backend group

Creating a backend group with a target group

Creating a backend group with a bucket

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