aws-ec2-ami-backup

We often need to create backup of an ec2 instance. So we go to aws console and select Action -> Image -> create image By doing this we make backup of servers.

Now what happens if we want daily backup of a server then it will be boring to do it via aws console. So we create python script for creating backup. First you need to insall boto3

pip3 install boto3

After that create a file backyp.py

We use boto3 to talk to aws apis which is very useful to get information about anything.

ec = boto3.client('ec2')

here we are using only ec2 Then we use some filter to describe the instance( means get the information about server)

response=ec.describe_instances(
    Filters=[
        {
            'Name':'tag:ami',
            'Values': ['backup']
        }
    ]
)

This code fetch that servers only which has tag

ami - backup

for reservation in (response["Reservations"]):
    for instance in reservation["Instances"]:
        instancelist.append(instance["InstanceId"])
        print(instance["InstanceId"])
        AMIid = ec.create_image(InstanceId=instance["InstanceId"], Name=instance["InstanceId"] + " - from " + create_fmt, Description=instance["InstanceId"] + " created AMI of instance  from " + create_fmt, NoReboot=True, DryRun=False)