Deleting a rule from a security group

To delete a rule from a group:

1. Get the name or ID of the group to edit:

   yc vpc security-groups list
   

   Result:

   +----------------------+---------------------------------+------------------------------------+----------------------+
   |          ID          |              NAME               |          DESCRIPTION               |      NETWORK-ID      |
   +----------------------+---------------------------------+------------------------------------+----------------------+
   | enp9bmjge93b******** | default-sg-enp509crtquf******** | Default security group for network | enp509crtquf******** |
   | enp9rs9u4h6j******** | sg-1                            |                                    | enp509crtquf******** |
   | enp9d8m73d1c******** | sg-2                            |                                    | enp509crtquf******** |
   +----------------------+---------------------------------+------------------------------------+----------------------+
   

2. Get a list of security group rules by specifying the group name or ID:

   yc vpc security-groups get <group_name_or_ID>
   

   Result:

   id: enp8rs9i4h6j********
   folder_id: b1gaus8l79li********
   created_at: "2022-06-24T15:46:31Z"
   name: sg-1
   network_id: enp559cr9quf********
   status: ACTIVE
   rules:
     - id: enpbbmv8ici********
       description: SSH
       direction: INGRESS
       ports:
         from_port: "22"
         to_port: "22"
       protocol_name: TCP
       protocol_number: "6"
       cidr_blocks:
         v4_cidr_blocks:
           - 0.0.0.0/0
   ...
   

3. To delete a rule, specify its ID in the command:

   yc vpc security-group update-rules <group_name_or_ID> --delete-rule-id <rule_ID>
   

   Result:

   done (12s)
   id: enp8rs9i4h6j********
   folder_id: b1gaus8l79li********
   created_at: "2022-06-24T15:46:31Z"
   name: sg-1
   network_id: enp559cr9quf********
   status: ACTIVE
   rules:
   ...
   

Terraform allows you to quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. Configuration files store the infrastructure description in the HashiCorp Configuration Language (HCL). Terraform and its providers are distributed under the Business Source License.

For more information about the provider resources, see the documentation on the Terraform website or the mirror.

If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

If you don't have Terraform, install it and configure the Yandex Cloud provider.

To delete a rule created with Terraform from a security group:

1. Open the Terraform configuration file and delete the ingress or egress section from the security group description:

   Sample description of a security group with rules in a Terraform configuration

   ...
   resource "yandex_vpc_security_group" "test-sg" {
     name        = "Test security group"
     description = "Description for security group"
     network_id  = "${yandex_vpc_network.lab-net.id}"
   
     ingress {
       protocol       = "TCP"
       description    = "Rule description 1"
       v4_cidr_blocks = ["10.0.1.0/24", "10.0.2.0/24"]
       port           = 8080
     }
   
     egress {
       protocol       = "ANY"
       description    = "Rule description 2"
       v4_cidr_blocks = ["10.0.1.0/24", "10.0.2.0/24"]
       from_port      = 8090
       to_port        = 8099
     }
   }
   ...
   

2. In the command line, go to the directory with the Terraform configuration file.

3. Check the configuration using this command:

   terraform validate
   

   If the configuration is correct, you will get this message:

   Success! The configuration is valid.
   

4. Run this command:

   terraform plan
   

   The terminal will display a list of resources with parameters. No changes will be made at this step. If the configuration contains any errors, Terraform will point them out.

5. Apply the configuration changes:

   terraform apply
   

6. Confirm the changes: type yes into the terminal and press Enter.

   You can verify the changes to the security group using the management console or the CLI command below:

   yc vpc security-group get <security_group_name>
   

To delete a rule from a security group, use the updateRules REST API method for the SecurityGroup resource or the SecurityGroupService/UpdateRules gRPC API call, and provide the following in the request:

• ID of the security group you want to delete rules from, in the securityGroupId parameter.
• IDs of the rules to be deleted, in the deletionRuleIds[] array.

To get the security group ID, use the list REST API method for the SecurityGroup resource or the SecurityGroup/List gRPC API call and provide the folder ID in the folderId request parameter.

To learn how to find out the folder ID, see Getting the folder ID.