如何在 AWS cli 中获取所有实例和特定标签的列表

Question

Does anyone know how to export all instances in an AWS account with their names and a specific tag? The tag I have is named Billing by Role. Trying to get this working with aws ec2 describe-instances.

I tried using this:

aws ec2 describe-instances --query 'Reservations[].Instances[].[Tags[?Key==`Name`].Value[] | [0], [Tags[?Key==`Billing by Role`].Value[]]' --output text

but I get an error:

ValueError: Bad value for --query Reservations[].Instances[].[Tags[?Key== Name ].Value[] | [0], [Tags[?Key== Billing by Role ].Value[]]: Invalid token.: Parse error at column 101 near token "" (EOF) for expression: "Reservations[].Instances[].[Tags[?Key== Name ].Value[] | [0], [Tags[?Key== Billing by Role ].Value[]]"

Thanks.

Answer 1

得到了它的工作：

aws ec2 describe-instances --query 'Reservations[].Instances[].{Name: Tags[?Key==`Name`].Value | [0], Role: Tags[?Key==`Billing by Role`].Value | [0]}' --output text

Answer 2

This command lists all instances in a region that have a tag named "Billing by Role". Replace the * with a specific value to only get those instances with a specific value.

aws ec2 describe-instances --filter "Name=tag:Billing by Role,Values=*"

Answer 3

To round out Mark B 's answer and fully answer your question, you can combine both --query and --filter . The difference is filter is done server side, and query is done client side. If you have a lot of instances, it makes sense to avoid returning lots of data you're going to hide with --query .

If you only want instances where the Billing by Role tag is set, but want to return "Name Role" for each of them, you can use:

aws ec2 describe-instances --filter "Name=tag:Billing by Role,Values=*" --query 'Reservations[].Instances[].{Name: Tags[?Key==`Name`].Value | [0], Role: Tags[?Key==`Billing by Role`].Value | [0]}' --output text

ORing each property to [0] is a nice trick for doing something like a full outer join, it makes less sense with a server-side filter but is nice when you can't guarantee which tag keys are set:

aws ec2 describe-instances --query 'Reservations[].Instances[].{Foo: Tags[?Key==`foo`].Value | [0], Bar: Tags[?Key==`bar`].Value | [0]}' --output table

| Foo  | Bar  |
|------|------|
| None | blue |
| red  | None |
| None | None |
| pink | grey |