Packer ec2 ami部署上的标签格式

Question

我第一次尝试使用Hashicorp Packer创建一个amazon ec2 ami，但在创建标签时失败了，我已经尝试了一些格式的试错测试，但仍然不走运

[ec2-boy-oh-boy@ip-172-168-99-23 pogi]$ packer init .
Error: Missing item separator
on variables.pkr.hcl line 28, in variable "tags":
27:   default = [
28:    "environment"    : "testing"
Expected a comma to mark the beginning of the next item. 

我的代码ec2.pkr.hcl看起来像这样：

[ec2-boy-oh-boy@ip-172-168-99-23 pogi]$ cat ec2.pkr.hcl 
packer {
required_plugins {
amazon = {
version = ">= 0.0.2"
source  = "github.com/hashicorp/amazon"
}
}
}
source "amazon-ebs" "ec2" {
ami_name      = "${var.ami_prefix}-${local.timestamp}"
instance_type = "t2.micro"
region        = "us-east-1"
vpc_id        = "${var.vpc}"
subnet_id     = "${var.subnet}"
security_group_ids = ["${var.sg}"]
ssh_username = "ec2-boy-oh-boy"
source_ami_filter {
filters = {
name                = "amzn2-ami-hvm-2.0*"
root-device-type    = "ebs"
virtualization-type = "hvm"
}
most_recent = true
owners      = ["12345567896"]
}
launch_block_device_mappings = [
{
"device_name": "/dev/xvda",
"delete_on_termination": true
"volume_size": 10
"volume_type": "gp2"
}
]
run_tags = "${var.tags}"
run_volume_tags = "${var.tags}"
}
build {
sources = [
"source.amazon-ebs.ec2"
]
}
[ec2-boy-oh-boy@ip-172-168-99-23 pogi]$ 

然后我的代码variables.pkr.hcl看起来是这样的：

[ec2-boy-oh-boy@ip-172-168-99-23 pogi]$ cat variables.pkr.hcl 
locals {
timestamp = regex_replace(timestamp(), "[- TZ:]", "")
}
variable "ami_prefix" {
type    = string
default = "ec2-boy-oh-boy"
}
variable "vpc" {
type    = string
default = "vpc-asd957d"
}
variable "subnet" {
type    = string
default = "subnet-asd957d"
}
variable "sg" {
type    = string
default = "sg-asd957d"
}
variable "tags" {
type = map
default = [
environment        = "testing"
type               = "none"
production         = "later"
]
}

Answer 1

tags变量的默认值为list(string)类型。run_tags和run_volume_tags指令都需要类型map[string]string。

我能够对您的变量文件进行以下更改，并成功运行packer init：

variable "tags" {
default = {
environment = "testing"
type        = "none"
production  = "later"
}
type = map(string)
}