A script to start a spot instance based on a template.
Provide instance type, AMI ID and an owner id, and the script will launch and instance naming it on the owner id and AMI id, and will return the instance ID and external IP
The tamplate used is a spot template (hence the name), but any template will do. The usage of the template is mainly to provide easier inclusion of keys, role and user data.
| #!/bin/bash | |
| LAUNCHTEMPLATEID=lt-04f7a88addea07001 | |
| INTANCETYPE=p3.2xlarge | |
| REGION=$(curl http://169.254.169.254/latest/meta-data/placement/availability-zone | cut -c1-9) | |
| AWSCMD="aws --region $REGION --output text | |
| IMAGEID=$($AWSCMD ssm get-parameters --names /aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-x86_64-gp2 | cut -f 6) | |
| TAGVALUEOWNER=$($AWSCMD iam get-user| awk '{printf $7}') | |
| SNAPSHITID=$($AWSCMD ec2 describe-images --image-id $IMAGEID | grep snap- | awk -F" " '{print $4}') | |
| BOOTDEVICESIZE=$($AWSCMD ec2 describe-images --image-id $IMAGEID | grep snap- | awk -F" " '{print $5}') | |
| EXTERNALIP= | |
| INSTANCEID=$($AWSCMD ec2 run-instances --launch-template LaunchTemplateId=$LAUNCHTEMPLATEID --instance-type $INTANCETYPE --image-id $IMAGEID --tag-specifications "ResourceType=instance,Tags=[{Key=Owner,Value=$TAGVALUEOWNER},{Key=name,Value=$TAGVALUEOWNER-$INTANCETYPE}]" --block-device-mappings "[{\"DeviceName\":\"/dev/xvda\",\"Ebs\":{\"VolumeSize\":$BOOTDEVICESIZE,\"SnapshotId\":\"$SNAPSHITID\"}}]" --region $REGION | grep INSTANCES | awk -F" " '{print $7}') | |
| echo Instance ID is $INSTANCEID | |
| waiting for IP | |
| EXTERNALIP=$($AWSCMD ec2 describe-instances --instance-ids $INSTANCEID --query 'Reservations[*].Instances[*].PublicIpAddress') | |
| echo IP is "$EXTERNALIP" |