I'm looking for terminating multiple EC2 instances via AWS CLI. Yes, can able to terminate an EC2 instance by executing the below command.
Syntax:
aws ec2 terminate-instances --instance-ids <intance id> --profile <profile name>
Example:
aws ec2 terminate-instances --instance-ids <i-...> --profile xxx
But I have a big list of instances that I need to terminate so I'm searching for a solution to terminating a batch of EC2 instances by providing the list of instance ids. I tried with multiple instance ids as below but those not working.
aws ec2 terminate-instances --instance-ids ("instance-id1", "intance-id2") --profile xxx
aws ec2 terminate-instances --instance-ids ("instance-id1intance-id2") --profile xxx
aws ec2 terminate-instances --instance-ids (instance-id1,intance-id2) --profile xxx
Kindly let me know if there is any possibility to terminate a batch of instances.
I can able to achieve this by following the below command as recommended by luk2302
aws ec2 terminate-instances --instance-ids instance-id1 instance-id2 --profile xxx
Also as recommended by Alex Bailey, we can try with the shell script (.sh) or batch (.bat) which will make our job easier.
Instead of running all the instance ID's through at once I would create a loop in a shell script to do this.
Assuming you have each instance ID on a separate line in a text file you could do something like:
#!/usr/bin/env bash
while read ins_id; do
aws ec2 terminate-instances --instance-ids $ins_id --profile <profile name> || echo "error terminating ${ins_id}"
done < instance_ids.txt
That's not tested and I'm not great with shell scripting so if you try using it just try with one or two instances first and see what happens.
Related
I am trying to write a bash script that will delete my EC2 instances and the auto scaling group that launched them:
EC2s=$(aws ec2 describe-instances --region=eu-west-3 \
--filters "Name=tag:Name,Values=*-my-dev-eu-west-3" \
--query "Reservations[].Instances[].InstanceId" \
--output text)
for id in $EC2s
do
aws ec2 terminate-instances --region=eu-west-3 --instance-ids $id
done
aws autoscaling delete-auto-scaling-group --region eu-west-3 \
--auto-scaling-group-name my-asg-dev-eu-west-3
But it fails with this error:
An error occurred (ResourceInUse) when calling the DeleteAutoScalingGroup operation:
You cannot delete an AutoScalingGroup while there are instances or pending Spot
instance request(s) still in the group.
There is no issue if I use the AWS console to do the same thing. Why does the aws cli prevent me from deleting the ASG if I have terminated all the instances?
if you really want to do this with CLI, you may first want to use aws autoscaling suspend-processes command to prevent ASG from creating new instances. Then use aws ec2 terminate-instances like you are doing. Then use aws ec2 wait instance-terminated command and pass instance ids. Once all that is done, you should be able use aws autoscaling delete-auto-scaling-group
aws ec2 terminate-instances will return before the instances have finished terminating (which could take several minutes).
I highly recommend using something like CloudFormation or Terraform for this sort of thing instead of the AWS CLI tool.
You can force delete the ASG with active spot instance requests with AWS cli:
aws autoscaling delete-auto-scaling-group --auto-scaling-group-name Your-ASG-Name --force-delete
I need to delete an Amazon EC2 instance using name or tag using the AWS CLI.
How is it possible?
To terminate an instance using the AWS Command-Line Interface (CLI):
aws ec2 terminate-instances --instance-ids i-abcd1234
See: terminate-instances — AWS CLI Command Reference
This, however, requires the **Instance ID*.
If, instead, you want to select the instance via a Tag, then you will first need to search for the instance(s).
For example, if you are searching by the instance Name (which is actually just a Tag), use:
aws ec2 describe-instances --filters Name=tag:Name,Values=Foo --query Reservations[].Instances[].InstanceId
Finally, you can combine the two queries together with:
aws ec2 terminate-instances --instance-ids `aws ec2 describe-instances --filters Name=tag:Name,Values=Foo --query Reservations[].Instances[].InstanceId --output text`
Faily new to AWS however I am looking to terminate a set of ec2 instances using the AWS CLI by filtering by a Tag name.
If I use describe-instances, I can filter by tag:key=value . For terminate-instances I don't see a way of filtering. I assume this is possible since I can filter and terminate using the AWS console but I am looking to do this via CLI.
Latest AWS CLI allows you to avoid the need for any scripts or jq:
aws ec2 terminate-instances --instance-ids $(aws ec2 describe-instances --query 'Reservations[].Instances[].InstanceId' --filters "Name=tag:tagkey,Values=tagvalue" --output text)
as long as the number of expected instances is not huge, the above can be used.
The terminate-instances command only takes a list of instance IDs. You would need to write a script to run the describe-instances command first and capture the instance IDs, then pass those IDs to the terminate-instances command.
I created the following script(.sh) and it worked for me:
aws ec2 describe-instances --query 'Reservations[*].Instances[*].[InstanceId]' --filters 'Name=tag-value,Values=MYTAG' --output text |
grep stopped |
awk '{print $2}' |
while read line;
do aws ec2 terminate-instances --instance-ids $line
done
I frequently need to start AWS EC2 instances to work with from the command line to work with over SSH, and would like to write a short script to do this, but I'm stuck at the most basic steps.
For example, I can get started with
aws ec2 start-instances --instance-ids i-84Sd8jdf
and would like to continue by grabbing the IP address assigned to the instance and using it as an environment variable or script variable to preform subsequent operations such as
ssh ubuntu#<theIP>
or
scp ubuntu#<theIP>:~/soruce_stuff/* ~/dest_folder/
but I can't figure out how to get the IP address from the start-instances command, or from any of the JSON emitted by other commands.
How do I script starting of EC2 instances, wearing for the IP to be assigned, and capturing the assigned IP address for subsequent use?
An example (based on this excellent answer) in bash where the instance is started, the script sleeps (specified in seconds), and the public ip address is saved to a local variable:
aws ec2 start-instances --instance-ids i-aaaa1111
sleep 10
ec2Address=$(aws ec2 describe-instances --instance-ids i-aaaa1111 --query "Reservations[*].Instances[*].PublicIpAddress" --output=text)
To verify:
echo $ec2Address
11.1.111.111
Amazon offers wait condition to wait for the instance to be ready before you can perform other tasks on it. Here is an example might help you
aws ec2 start-instances --instance-ids $instance_id
aws ec2 wait instance-running --instance-ids $instance_id
aws ec2 describe-instances --instance-ids $instance_id --output text|grep ASSOCIATION |awk '{print $3}'|head -1
I have found a script for starting/stopping a dynamically created ec2 instance, but how do I start any instances in my inventory?
Seems you are talking about scripting, not SDK. So there are two tools to do the job.
1 AWS CLI tools
download aws cli tool and set the API Key in $HOME/.aws/credentials
list all instances on region us-east-1
Confirm which instances you are targeting.
aws ec2 describe-instances --query 'Reservations[].Instances[].InstanceId' --region us-east-1 --output text
2 Amazon EC2 Command Line Interface Tools
download and setup instruction
list all instances on region us-east-1
You should get same output as WAY #1.
ec2-describe-instances --region us-west-2 |awk '/INSTANCE/{print $2}'
With the instance ID list, you can use your command to start them one by one.
for example, the instance name are saved in file instance.list
while read instance
do
echo "Starting instance $instance ..."
ec2-start-instances "$linstance"
done < instance.list
BMW, give you an excellent startup, but you can even summarise the thing like this:
1) First get the id of all the instances and save them into a file
aws ec2 describe-instances --query 'Reservations[].Instances[].InstanceId' --region us-east-1 --output text >> id.txt
2) Then simply run this command to start all the instances
for id in $(awk '{print $1}' id.txt); do echo "starting the following instance $id"; aws ec2 start-instances --instance-ids --region us-east-1 $id; done
Please change the region, I am considering that you have installed and setup the AWS CLI tools properly. Thanks