脚本，用于获取通过AMI启动的实例状态的实例状态1/2或2/2，该实例ID之前在terraform中使用外部数据源未知 [英] script to get Instance Status 1/2 or 2/2 of instance launched via AMI whose instance id is not known before in terraform using external data source

问题描述

我可以使用脚本来获取通过AMI启动的实例的状态的1/2或2/2的实例状态检查，该实例的实例ID未知，然后再使用外部数据源在terraform中应用terraform.通过AMI启动的实例名称:QA-server-via-ami阿美名称:QA-ami

Can i have script to get Instance Status check of 1/2 or 2/2 of instance launched via AMI whose instance id is not known before applying terraform apply in terraform using external data source . Instance name launched via AMI : QA-server-via-ami Ami Name : QA-ami

    Error : 
    Error: failed to execute "bash":
    An error occurred (InvalidInstanceID.Malformed) when calling the 
    DescribeInstanceStatus operation: Invalid id: "QA-server-via-ami.id"
    on main.tf line 94, in data "external" "instance_status":
    94: data "external" "instance_status"}

Main TF Code :

    resource "aws_ami_from_instance" "QA-ami" {
    name   = "QA-ami"
    source_instance_id = "i-00f4e52*****"
    }

    resource "aws_instance" "QA-server-via-ami" {
    ami = aws_ami_from_instance.QA-ami.id
    instance_type = "var.instance_type_QA"
    }

    data "external" "instance_status" {
    program = ["bash", "${path.module}/get_instance_status.sh"]
    query = {
    id = "QA-server-via-ami.id"
    }
    } 

get_instance_status.sh :

    #!/bin/bash

    set -e

    eval "$(jq -r '@sh "INSTANCE_ID=\(QA-server-via-ami.id)"')"

    status=$(aws ec2 describe-instance-status --instance-ids ${INSTANCE_ID} -- 
    output json --query 'InstanceStatuses[0]')

    instance_status=$(echo ${status} | jq -r '.InstanceStatus.Details[0].Status')
    system_status=$(echo ${status} | jq -r '.SystemStatus.Details[0].Status')

    jq -n --arg inst_status "$instance_status" \
      --arg sys_status "$system_status" \
      '{"instance_status":$inst_status,"system_status":$sys_status}'

推荐答案

自创建实例以来，使用:

Since you creating instance using:

resource "aws_instance" "QA-server-via-ami"

然后要获取其ID，您可以使用:

then to get its ID you can use:

aws_instance.QA-server-via-ami.id

因此要将其传递到您的外部数据源:

So to pass it to your external data source:

data "external" "instance_status" {
    program = ["bash", "${path.module}/get_instance_status.sh"]
    query = {
      id = aws_instance.QA-server-via-ami.id
    }
} 

这篇关于脚本，用于获取通过AMI启动的实例状态的实例状态1/2或2/2，该实例ID之前在terraform中使用外部数据源未知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！