如何通过Terraform在VPC Kubernetes集群中添加自定义安全组?
在IBM VPC Kubernetes Terraform模块中添加自定义安全组
你尝试的security_group_id并非该模块的有效参数,要给Kubernetes集群的worker节点绑定自定义安全组,需使用模块提供的worker_pool_security_groups参数,具体操作如下:
1. (可选)创建自定义安全组
若还没有现成的自定义安全组,可通过ibm_is_security_group资源创建:
resource "ibm_is_security_group" "worker_custom_sg" { name = "worker-custom-sg" resource_group_id = data.ibm_resource_group.rg.id vpc_id = var.vpc_id # 按需添加安全组规则,示例包含SSH访问和集群内部通信规则 rule { direction = "inbound" protocol = "tcp" port_min = 22 port_max = 22 remote = "0.0.0.0/0" # 根据实际场景调整源地址范围 } rule { direction = "inbound" protocol = "tcp" port_min = 6443 port_max = 6443 remote = var.service_subnet # 允许集群服务子网访问API端口 } }
2. 在模块调用中绑定自定义安全组
修改你的vpc_kubernetes_cluster模块配置,添加worker_pool_security_groups参数,传入自定义安全组的ID列表:
data "ibm_resource_group" "rg" { name = var.resource_group } # (若已创建自定义安全组,保留此处资源代码) # resource "ibm_is_security_group" "worker_custom_sg" { ... } module "vpc_kubernetes_cluster" { source = "../../modules/vpc-kubernetes" cluster_name = var.cluster_name vpc_id = var.vpc_id worker_pool_flavor = var.worker_pool_flavor worker_zones = var.worker_zones worker_nodes_per_zone = var.worker_nodes_per_zone resource_group_id = data.ibm_resource_group.rg.id kube_version = var.kube_version update_all_workers = var.update_all_workers service_subnet = var.service_subnet pod_subnet = var.pod_subnet worker_labels = var.worker_labels wait_till = var.wait_till disable_public_service_endpoint = var.disable_public_service_endpoint tags = var.tags cos_instance_crn = var.cos_instance_crn force_delete_storage = var.force_delete_storage kms_config = var.kms_config taints = var.taints create_timeout = var.create_timeout update_timeout = var.update_timeout delete_timeout = var.delete_timeout # 绑定自定义安全组 worker_pool_security_groups = [ibm_is_security_group.worker_custom_sg.id] }
注意事项
- 若不指定
worker_pool_security_groups,模块会自动生成包含集群运行基础规则的默认安全组; - 自定义安全组需包含worker节点正常运行所需的全部规则(如节点间通信、Pod网络互通、API服务器访问等),否则集群可能无法正常工作;
- 支持传入多个安全组ID,格式为
[sg-id-1, sg-id-2]。
内容的提问来源于stack exchange,提问作者SemirAdam
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