{"id":18799,"date":"2015-03-31T23:02:43","date_gmt":"2015-03-31T17:32:43","guid":{"rendered":"http:\/\/www.tothenew.com\/blog\/?p=18799"},"modified":"2015-03-31T23:02:43","modified_gmt":"2015-03-31T17:32:43","slug":"continuing-with-boto-delete-ebs-snapshot-which-is-30-days-older","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/continuing-with-boto-delete-ebs-snapshot-which-is-30-days-older\/","title":{"rendered":"Continuing with Boto : Delete EBS snapshot which is 30 days older"},"content":{"rendered":"

In continuation with my previous blog “Getting Started with Boto ( python Interface for AWS )”<\/a>,\u00a0 today we are going to discuss one of the use case that we used to do daily.<\/p>\n

Deleting EBS Snapshot which is N days older.<\/h3>\n

<\/br>We’ll be writing python script using Boto library to delete EBS snapshots which is 30 days older. For this we will be using three different python modules.<\/p>\n

1) boto
\n2) datetime
\n3) dateutil<\/p>\n

We have already discussed boto module in our previous article<\/a>.
\ndatetime<\/a><\/strong>
\ndatetime module contains classes and methods for manipulating dates and times. e.g
\n[Python]<\/p>\n

[js]
\n >>> import datetime
\n >>>datetime.datetime.now()
\n datetime.datetime(2015, 3, 31, 22, 11, 22, 512228)<\/p>\n

Output : (Year,Month,Day,Minutes,Hour,Seconds)
\n[\/js]<\/p>\n

Now we have to find the date which is 30 days old with respect to current date. For that we will use timedelta objects comes with datetime class.<\/p>\n

[js]<\/p>\n

>>>import datetime
\n >>>datetime.datetime.now() – datetime.timedelta(days=30)
\n datetime.datetime(2015, 3, 1, 22, 21, 49, 741196)<\/p>\n

[\/js]<\/p>\n

As you can see we got the day 1 March 2015 <\/strong> which is 30 days behind from Current Date.<\/p>\n

dateutil<\/h3>\n

Now, we can compare EBS Snapshot Creation time with this time, If ebsSnapshotId.start_time < 30 days we’ll delete the snapshots. For that we have to use another python module dateutil.parser <\/strong> which helps us in extracting date from EBS Start time.<\/p>\n

EBS start_time uses 2012-10-09T12:27:30.000Z\u00a0<\/font> format to describe Creation Time for snaphots. We have to extract the date from this. We can achieve this by following snippets.<\/p>\n

[js]
\n>>> import dateutil
\n>>> from dateutil import parser
\n>>> parser.parse(snapshotID.start_time).date()
\ndatetime.date(2012, 10, 9)
\n[\/js]<\/p>\n

Now we have the current date , 30 days old date and EBS Snapshot Creation Time. So our complete scripts ” To delete snapshot which is 30 days Old ”<\/p>\n

[js]<\/p>\n

import boto
\nimport datetime
\nimport dateutil
\nfrom dateutil import parser
\nfrom boto import ec2<\/p>\n

connection=ec2.connect_to_region("REGION-NAME")<\/p>\n

ebsAllSnapshots=connection.get_all_snapshots(owner=’16-DIGIT-AWS-ACCOUNT-NUMBER’)<\/p>\n

#Get the 30 days old date
\ntimeLimit=datetime.datetime.now() – datetime.timedelta(days=30) <\/p>\n

for snapshot in ebsAllSnapshots:<\/p>\n

if parser.parse(snapshot.start_time).date() <= timeLimit.date():
\n print " Deleting Snapshot %s %s " %(snapshot.id,snapshot.tags)
\n connection.delete_snapshot(snapshot.id)
\n else:
\n # this section will have all snapshots which is created before 30 days
\n print "Only Deleting Snapshots which is 30 days old" <\/p>\n

[\/js]
\n <\/p>\n

Note : Please make sure you perform testing before executing this script.<\/h3>\n

<\/strong>
\nLeave a comment if you have any questions regarding this article.<\/p>\n","protected":false},"excerpt":{"rendered":"

In continuation with my previous blog “Getting Started with Boto ( python Interface for AWS )”,\u00a0 today we are going to discuss one of the use case that we used to do daily. Deleting EBS Snapshot which is N days older. We’ll be writing python script using Boto library to delete EBS snapshots which is […]<\/p>\n","protected":false},"author":100,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":12},"categories":[1174,1],"tags":[248,1611,1358],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/18799"}],"collection":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/users\/100"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/comments?post=18799"}],"version-history":[{"count":0,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/18799\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=18799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=18799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=18799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}