Delete AWS EC2 Snapshots Older Than Six Months Lambda

index.js

const AWS = require('aws-sdk');
AWS.config.update({ region: 'us-west-2' });

exports.handler = async (event, context, callback) => {
  const sixMonthsAgo = new Date(Date.now() - 6 * 30 * 24 * 60 * 60 * 1000);
  const conditionDate = sixMonthsAgo.toISOString();

  const ownerIds = ["REPLACE_ME"];
  let nextToken;

  do {
    const params = {
      OwnerIds: ownerIds,
      Filters: [
        {
          Name: 'start-time',
          Values: [conditionDate],
        },
      ],
      MaxResults: 10,
      NextToken: nextToken,
    };
    const ec2 = new AWS.EC2({ apiVersion: '2016-11-15' });
    const result = await ec2.describeSnapshots(params).promise();
    const snapshots = result.Snapshots;

    console.log(`Found ${snapshots.length} snapshots older than ${conditionDate}`);


    if (snapshots.length === 0) {
      break;
    }

    nextToken = result.NextToken;

    for (const snapshot of snapshots) {
      try {
        await ec2.deleteSnapshot({ SnapshotId: snapshot.SnapshotId }).promise();
        console.log(`Deleted snapshot ${snapshot.SnapshotId}`);
      } catch (error) {
        console.log(`Error deleting snapshot ${snapshot.SnapshotId}:`, error);
      }
    }
  } while (nextToken);

  callback(null, "Success");
};