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


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

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

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

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

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

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": "*"
        }
    ]
}
Use AWS JS SDK in node to describe all ec2 instances

Use AWS JS SDK in node to describe all ec2 instances


By : Rickshawman
Date : March 29 2020, 07:55 AM
hope this fix your issue According to Amazon Web Services docs,
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