TEST.md

Creating an EC2 instance from AMI

Prerequisites

• AWS administrator account credentials
• aws CLI

Stop paging

export AWS_PAGER=

Create a New Key Pair for EC2 Instances

ssh-keygen -t rsa -C "my-key" -f $HOME/.ssh/my-key
aws ec2 import-key-pair --key-name "my-key" --public-key-material fileb://$HOME/.ssh/my-key.pub

You will have to press Ctrl+c to exit after issuing the second command above

Launch New EC2 Instance

aws ec2 run-instances --image-id {AMI_ID} --instance-type=m4.large --key-name my-key

Replace {AMI_ID} above with the AMI ID of the image you're hosting in your AWS account and region.

Fetch instance

aws ec2 describe-instances

Pay attention to the InstanceId and PublicDnsName in the JSON output returned.

Connect to the instance

ssh -i $HOME/.ssh/my-key ubuntu@{INSTANCE_PUBLIC_DNS_NAME}

You were paying attention weren't you? The {INSTANCE_PUBLIC_DNS_NAME} is available from the output of the prior command you issued.

On using the Tanzu CLI

One time setup

You will need to install the plugins the Tanzu CLI requires after connecting by exploding the tarball and executing tanzu plugin install --local cli all

Troubleshooting connectivity

• Can you telnet to SSH?
• Add a rule for inbound SSH traffic to a Linux instance

Stop and Start an EC2 Instance

Any on-demand EC2 instance in a running state can be stopped with

aws ec2 stop-instances --instance-ids {INSTANCE_ID}

And started again with

aws ec2 start-instances --instance-ids {INSTANCE_ID}

Replace {INSTANCE_ID} above with the instance ID of the image you intend to stop or start

Terminate an EC2 instance

If we want to remove the instance completely, then we can terminate the instance with

aws ec2 terminate-instances --instance-ids {INSTANCE_ID}

Replace {INSTANCE_ID} above with the instance ID of the image you intend to terminate

Credits

• Add a rule for inbound SSH traffic to a Linux instance
• AWS says invalid format for my SSH key... What happened?