如何在本地exec provisioner中从terraform继承aws凭据

你能通过AWS配置使用角色假设吗?医生: Using an IAM Role in the AWS CLI

~/.aws/config:

[user1]
aws_access_key_id =  ACCESS_KEY
aws_secret_access_key = SECRET_KEY

[test-assume]
role_arn = arn:aws:iam::123456789012:role/test-assume
source_profile = user1

主要的tf:

provider "aws" {
  profile = var.aws_profile
  version = "~> 2.0"
  region  = "us-east-1"
}

variable "aws_profile" {
  default = "test-assume"
}

resource "aws_instance" "instances" {
  ami           = "ami-009d6802948d06e52"
  instance_type = "t2.micro"
  subnet_id     = "subnet-002df68a36948517c"

  provisioner "local-exec" {
    command = "aws sts get-caller-identity --profile ${var.aws_profile}"
  }
}

如果你做不到,这里有一个非常混乱的方法。我并不特别推荐这种方法,但它会管用的。这依赖于 jq 但您也可以使用其他东西来解析 aws sts assume-role 命令

主要的tf:

provider "aws" {
  profile = var.aws_profile
  version = "~> 2.0"
  region  = "us-east-1"
  assume_role {
    role_arn = var.assume_role
  }
}

variable "aws_profile" {
  default = "default"
}

variable "assume_role" {
  default = "arn:aws:iam::123456789012:role/test-assume"
}

resource "aws_instance" "instances" {
  ami           = "ami-009d6802948d06e52"
  instance_type = "t2.micro"
  subnet_id     = "subnet-002df68a36948517c"

  provisioner "local-exec" {
    command = "aws sts assume-role --role-arn ${var.assume_role} --role-session-name Testing --profile ${var.aws_profile} --output json > test.json && export AWS_ACCESS_KEY_ID=`jq -r '.Credentials.AccessKeyId' test.json` && export AWS_SECRET_ACCESS_KEY=`jq -r '.Credentials.SecretAccessKey' test.json` && export AWS_SESSION_TOKEN=`jq -r '.Credentials.SessionToken' test.json` && aws sts get-caller-identity && rm test.json && unset AWS_ACCESS_KEY_ID && unset AWS_SECRET_ACCESS_KEY && unset AWS_SESSION_TOKEN"
  } 
}