问题描述
我编写了一个 terraform 模块 (v0.14),可用于在 openstack 中配置多个实例,具有正确的可用性区域、网络端口、正确的风格,可以基于布尔输入变量创建 1 个本地磁盘或 1 个块存储卷,以及等等。现在我收到了一个功能请求,希望能够在多个实例上动态添加多个块存储卷(=网络/共享存储卷)。
所有实例如何在多个实例上为 1 个 blockstorage_volume 动态工作的示例:
#Dynamically create this resource ONLY if boolean "volume_storage" = true
resource "openstack_blockstorage_volume_v3" "shared_storage" {
for_each = var.volume_storage ? var.nodes : {}
name = "${each.value}-${each.key}.${var.domain}"
size = var.volume_s
availability_zone = each.key
volume_type = var.volume_type
image_id = var.os_image
}
resource "openstack_compute_instance_v2" "instance" {
for_each = var.nodes
name = "${each.value}-${each.key}.${var.domain}"
flavor_name = var.flavor
availability_zone = each.key
key_pair = var.key_pair
image_id = (var.volume_storage == true ? "" : var.os_image)
config_drive = true
#Dynamically create this parameter ONLY if boolean "volume_storage" = true
dynamic "block_device" {
for_each = var.volume_storage ? var.volume : {}
content {
uuid = openstack_blockstorage_volume_v3.shared_storage[each.key].id
source_type = "volume"
destination_type = "volume"
delete_on_termination = var.volume_delete_termination
}
}
user_data = data.template_file.cloud-init[each.key].rendered
scheduler_hints {
group = openstack_compute_servergroup_v2.servergroup.id
}
network {
port = openstack_networking_port_v2.network-port[each.key].id
}
}
现在假设我有 2 个实例,我想动态地向每个实例添加 2 个额外的 blockstorage_volumes,我的第一个想法是添加 2 个额外的动态资源作为试验:
#Dynamically create this resource if boolean "multiple_volume_storage" = true
resource "openstack_blockstorage_volume_v3" "multiple_shared_storage" {
for_each = var.multiple_volume_storage ? var.multiple_volumes : {}
name = each.value
size = var.volume_s
availability_zone = each.key
volume_type = var.volume_type
image_id = var.os_image
}
.tf 文件中定义的 2 个额外块存储卷的示例:
variable "multiple_volumes" {
type = map(any)
default = {
dc1 = "/volume/MysqL"
dc2 = "/volume/postgres"
}
}
.tf 文件中定义的 2 个实例的示例:
nodes = {
dc1 = "app-stage"
dc2 = "app-stage"
}
这里我尝试动态地将 2 个额外的 blockstorage_volumes 附加到每个实例:
resource "openstack_compute_volume_attach_v2" "attach_multiple_shared_storage" {
for_each = var.multiple_volume_storage ? var.multiple_volumes : {}
instance_id = openstack_compute_instance_v2.instance[each.key].id
volume_id = openstack_blockstorage_volume_v3.multiple_shared_storage[each.key].id
}
openstack_compute_instance_v2.instance [each.key] 显然不正确,因为它现在每个实例只创建 1 个额外的 blockstorage_volume。有没有干净/优雅的方法来解决这个问题?所以基本上将变量“multiple_volumes”中的所有给定卷附加到 var.nodes 中定义的每个单个实例
亲切的问候, 乔纳斯
解决方法
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