遗憾的是,Terraform AWS 提供商目前不支持列出 S3 存储桶的数据源。对于这样的事情(Terraform 不支持的数据源),常用方法是通过外部数据源使用 AWS CLI。
这些是我喜欢用于 CLI/shell 命令的模块:
使用数据源版本,它看起来像:
module "list_buckets" {
source = "Invicton-Labs/shell-data/external"
version = "0.1.6"
// Since the command is the same on both Unix and Windows, it's ok to just
// specify one and not use the `command_windows` input arg
command_unix = "aws s3api list-buckets --output json"
// You want Terraform to fail if it can't get the list of buckets for some reason
fail_on_error = true
// Specify your AWS credentials as environment variables
environment = {
AWS_PROFILE = "myprofilename"
// Alternatively, although not recommended:
// AWS_ACCESS_KEY_ID = "..."
// AWS_SECRET_ACCESS_KEY = "..."
}
}
output "buckets" {
// We specified JSON format for the output, so decode it to get a list
value = jsondecode(module.list_buckets.stdout).Buckets
}
Apply complete! Resources: 0 added, 0 changed, 0 destroyed.
Outputs:
buckets = [
{
"CreationDate" = "2021-07-15T18:10:20+00:00"
"Name" = "bucket-foo"
},
{
"CreationDate" = "2021-07-15T18:11:10+00:00"
"Name" = "bucket-bar"
},
]