How to get public dns name from aws ec2 describe-instances

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By : user3042032

Date : November 27 2020, 12:01 PM

I wish this help you You can just append --output text to your CLI call to get a text output.
Ref - https://docs.aws.amazon.com/cli/latest/userguide/cli-usage-output.html

code :

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Running ec2-describe-instances in EC2

By : Asif Khawaja

Date : March 29 2020, 07:55 AM

fixed the issue. Will look into that further Greg , You need to pass security key and access key as parameters for that command , else you can set those as environmental variables also , you will get the those security and access keys from your account by accessing the link provided by @datasage in above answer .

AWS-cli ec2 describe instances

By : Valerie Mullen

Date : March 29 2020, 07:55 AM

Hope that helps i am digging on aws cli and from past 5 hours i struggling with 2 cli commands , To describe all instances with Tag "NAME" Use:

code :

aws ec2 describe-instances --filters "Name=tag-key,Values=Name"

aws ec2 describe-instances --query 'Reservations[].Instances[].[InstanceId, Tags[?Key==`Name`].Value[0]]'

aws ec2 describe-instances --query 'Reservations[].Instances[].[InstanceId, Tags[?Key==`Name`], Tags[?Key==`Name`].Value[]]'

aws ec2 describe-instances --filters "Name=tag:Purpose,Values=test"

aws ec2 describe-instances --instance-ids i-1234567890abcdef0

aws ec2 describe-instances | jq '.Reservations[].Instances[] | select(contains({Tags: [{Key: "Purpose"} ]}) | not)'

aws ec2 describe-instances | jq '.Reservations[].Instances[] | select(contains({Tags: [{Key: "Name"}, {Value: "testbox1"}]}) | not)'

aws ec2 describe-instances | jq '.Reservations[].Instances[] | select(contains({Tags: [{Key: ""}, {Value: ""}]}) | not)'

aws cli describe-instances without a VpcId

By : Hugo Nascimento

Date : October 23 2020, 01:08 AM

I wish this help you This cli command will list all the instances which doesn't have VpcId.

code :

aws ec2 describe-instances --region us-east-1 --query 'Reservations[*].Instances[?!not_null(VpcId)] | [].[InstanceId]'  --output text

aws ec2 describe-instances --region us-east-1 --query 'Reservations[*].Instances[?not_null(VpcId)] | [].[InstanceId]'  --output text

AWSLambdaBasicExecutionRole not able to describe instances

By : user3384541

Date : March 29 2020, 07:55 AM

This might help you First of all, AWSLambdaBasicExecutionRole is a POLICY not a role despite what its name implies. And that policy gives only the following permissions:

code :

    {
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "logs:CreateLogGroup",
                "logs:CreateLogStream",
                "logs:PutLogEvents"
            ],
            "Resource": "*"
        }
    ]
}