[英]Attaching ENI on eth0 on EC2 instance startup
I need to attach a static private IP to an instance in an ASG.我需要将 static private IP 附加到 ASG 中的实例。 Since I can't specify it in the Launch Template, I'm using a user-data script to attach an existing ENI on instance startup.因为我无法在启动模板中指定它,所以我使用用户数据脚本在实例启动时附加现有的 ENI。 It works fine with --device-index 1
but then I get a total of two IPs.它与--device-index 1
一起工作正常,但我总共得到了两个 IP。
Why is it not possible to have --device-index 0
to attach only the IP address I need?为什么不能让--device-index 0
只附加我需要的 IP 地址?
According to the AWS Certified Solutions Architect Study Guide,根据 AWS 认证解决方案架构师学习指南,
My best guess is that by the time you run your user-data script, you already have a primary.network interface attached.我最好的猜测是,当您运行用户数据脚本时,您已经附加了一个 primary.network 接口。
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