AWS auto AMI backup across all region with cloud watch & Lambda

Question

how to take all Working EC2 server backup automatically at particular time?

auto delete old backup and take new backup everyday

Answer 1

Aws lambda auto AMI backup script with cloudwatch log across all region in

2 lambda function for create and Delete and you have to make new policy and role for it

creat_backup

    var aws = require('aws-sdk');  
Region = ['ap-south-1','eu-central-1','us-east-1'];
var now = new Date();   
date = now.toISOString().substring(0, 10)  
hours = now.getHours()  
minutes = now.getMinutes()  

exports.handler =  function (event, context) 
{  
    var instanceparams = {
        Filters: [{
            Name: 'tag:Backup',
            Values: [
                'yes'
            ]
        }]
    }
    region(0);
  async function region(h){

    if(h>=Region.length)
    return;
    console.log("H Value Test",h);
    aws.config.region = Region[h];
    var ec2 = new aws.EC2(); 
    console.log("SELECTED REGION",Region[h])
   return await ec2.describeInstances(instanceparams, function(err, data) {
        if (err) console.log(err, err.stack);
        else {
            for (var i in data.Reservations) {
                var ec1 = new aws.EC2(); 
                for (var j in data.Reservations[i].Instances) {
                    console.log("instance is ",data.Reservations[i].Instances[j].InstanceId);
                    instanceid = data.Reservations[i].Instances[j].InstanceId;
                    nametag = data.Reservations[i].Instances[j].Tags
                    for (var k in data.Reservations[i].Instances[j].Tags) {
                        if (data.Reservations[i].Instances[j].Tags[k].Key == 'Name') {
                            name = data.Reservations[i].Instances[j].Tags[k].Value;
                        }
                    }
                    console.log("Creating AMIs of the Instance: ", name);
                    var imageparams = {
                        InstanceId: instanceid,
                        Name: name + "_" + date + "_" + hours + "-" + minutes,
                        NoReboot: true
                    }
                 ec1.createImage(imageparams, function(err, data) {
                        if (err) console.log(err, err.stack);
                        else {
                            image = data.ImageId;
                            console.log("image",image);
                            var tagparams = {
                                Resources: [image],
                                Tags: [{
                                    Key: 'DeleteOn',
                                    Value: 'yes'
                                }]
                            };
                            ec1.createTags(tagparams, function(err, data) {
                                console.log("Tags added to the created AMIs");
                            });
                           }ec1=null;
                    });

                }
            }
        }
        aws.config.region = null;
        ec2 = null; 
        h+=1
        region(h)
    });
    }   
}

delete function

var aws = require('aws-sdk');  
Region = ['ap-south-1','eu-central-1','us-east-1'];

var d = new Date();  
var x = 1;  /* ------Retention Days------- */  
d.setDate(d.getDate() - x);  
reqdate = d.toISOString().substring(0, 10);  


exports.handler = function(event, context) {  
var instanceparams = {
    Owners: [
        'self'
    ],
    Filters: [{
        Name: 'tag:DeleteOn',
        Values: [
            'yes'
        ]
    }]

  }

  region(0);
function region(h){

    if(h>=Region.length)
    return;
    console.log("H Value Test",h);
    aws.config.region = Region[h];
     var ec2 = new aws.EC2(); 
    console.log("SELECTED REGION",Region[h]); 

ec2.describeImages(instanceparams, function(err, data) {
    if (err) console.log(err, err.stack);
    else {
        for (var j in data.Images) {
            imagename = data.Images[j].Name
            imageid = data.Images[j].ImageId

            //if (imagename.indexOf(reqdate) > -1) {
                console.log("image that is going to be deregistered: ", imagename);
                console.log("image id: ", imageid);

                var deregisterparams = {
                    ImageId: imageid
                };
                ec2.deregisterImage(deregisterparams, function(err, data01) {
                    if (err) console.log(err, err.stack); // an error occurred
                    else {
                        console.log("Image Deregistered");

                    }
                });
            //}
        }
        setTimeout(function() {
            for (var j in data.Images) {
                imagename = data.Images[j].Name
              //  if (imagename.indexOf(reqdate) > -1) {
                    for (var k in data.Images[j].BlockDeviceMappings) {
                        snap = data.Images[j].BlockDeviceMappings[k].Ebs.SnapshotId;
                        console.log(snap);
                        var snapparams = {
                            SnapshotId: snap
                        };
                        ec2.deleteSnapshot(snapparams, function(err, data) {
                            if (err) console.log(err, err.stack); // an error occurred
                            else console.log("Snapshot Deleted"); // successful response
                        });
                    }
                //}
            }
        }, 30000);
    }
      aws.config.region = null;
        h+=1
        region(h);
});
}
}

for more info visit https://github.com/harsh4870/AWS-auto-ami-backup-across-all-region