anuragmathur1’s gists

anuragmathur1 / create-ec2-instance.sh

Created September 7, 2017 04:07

Create ec2 instance using aws cli.

	aws ec2 run-instances \
	--image-id ami-xxxxxxxx \
	--instance-type m4.large \
	--security-group-ids sg-xxxxxxxx sg-xxxxxxxx sg-xxxxxxxx \
	--subnet-id subnet-xxxxxxxx \
	--iam-instance-profile Arn=arn:aws:iam::xxxxxxxxxxxx:instance-profile/instance-profile \
	--count 1 \
	--block-device-mappings '[ { "DeviceName": "/dev/xvda", "Ebs": {"VolumeSize": 100, "VolumeType": "gp2"}}]' \
	--key-name instance-key \
	--associate-public-ip-address \

anuragmathur1 / create-rds-instance.sh

Last active September 7, 2017 04:16

Create RDS instance from cli - Example

	aws rds create-db-instance \
	--db-name newdb \
	--db-instance-identifier my-instance \
	--db-instance-class db.t2.micro \
	--engine MySQL \
	--engine-version 5.6.35 \
	--master-username dbuser \
	--master-user-password dbpwd \
	--vpc-security-group-ids sg-xxxxxxxx \
	--db-subnet-group-name db-subnet-group \

anuragmathur1 / create-cloudformation-stack.sh

Created September 7, 2017 04:15

Example of creating a cloudformation stack with example parameters

	aws cloudformation create-stack \
	--stack-name my-stack \
	--template-body file:///full-path-to-file/my-stack.template \
	--parameters \
	ParameterKey=DynaoDbReadCapacity,ParameterValue=2 \
	ParameterKey=DynaoDbWriteCapacity,ParameterValue=2 \
	ParameterKey=LambdaBucket,ParameterValue=Bucket-name \
	--profile=work

anuragmathur1 / find_all_ec2.sh

Created September 20, 2017 06:16

Find all instances and list their Private IP, instance-id and Name

	# Find all instances and list their Private IP, instance-id and Name
	# You may specify more filters like the vpc
	# Name=vpc-id,Values=vpc-xxxxxxxx
	aws ec2 describe-instances --filters --query 'Reservations[].Instances[].[PrivateIpAddress,InstanceId,Tags[?Key==`Name`].Value[]]' --output text --profile=elmodev \| sed '$!N;s/\n/ /'

anuragmathur1 / cleanup_ami_by_date.py

Last active December 21, 2017 03:58

Delete AMIs and associated snapshots created on a given date

	#!/usr/bin/python
	import boto3
	client = boto3.client('ec2')
	account_number = boto3.client('sts').get_caller_identity()['Account']
	response = client.describe_images(Owners=[account_number])

	for image in response['Images']:
	if "2017-08-21" in image['CreationDate']:
	image_id = image['ImageId']
	snapshot_id = image['BlockDeviceMappings'][0]['Ebs']['SnapshotId']

anuragmathur1 / run_remote_jenkins_job.rb

Created April 13, 2018 05:34

Example : Ruby script to invoke Jenkins job remotely

	require 'jenkins_api_client'
	SERVER_IP = 'jenkins.dev.example.com'
	$build = JenkinsApi::Client.new(:server_ip => "#{SERVER_IP}",:username => 'admin', :password => 'admin')
	$opts = {'build_start_timeout' => 60, 'cancel_on_build_start_timeout' => true}
	$build.job.build("test-project",{:parameter1=>"value-1",\
	:parameter2=>"value-2",\
	:parameter3=>"value-3",\
	:parameter4=>"value-4"} \|\| {}, $opts)

anuragmathur1 / delete_all_s3_Bucket_versions.py

Created May 7, 2019 05:02

You can not use cli to delete all versions of an object in a bucket. That will prevent you from removing the bucket as well. The below 4 lines will delete all versions of all all objects in the given s3 bucket.

	#!/usr/bin/env python
	import boto3
	s3 = boto3.resource('s3')
	bucket = s3.Bucket('<<Bucket-name-here>>')
	bucket.object_versions.all().delete()

anuragmathur1 / install-aws-cdk.sh

Created July 17, 2019 23:48

Install aws cdk - ubuntu18

	apt-get install python3-pip -y

	sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.6 1
	sudo update-alternatives --config python

	sudo update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1
	sudo update-alternatives --config pip

	pip install aws-cdk.cdk

anuragmathur1 / delete-snapshots.py

Created October 1, 2019 05:24

Delete EBS snapshots that are not attached to any AMI and are at least 90 days old

-#!/usr/bin/python
-## The script deletes the snapshots that are :
-## - not attached to an AMI
-## - are atleast 90 days old
-## Output :
-## - soem csv files if a report is required
-## - the return values ( return_code  && request_id from the delete command )
-## Usage

anuragmathur1 / pull_all_repos.sh

Created October 4, 2019 03:57

Pull all gitlab repos from the group

	GITLAB_GROUP="<group-name>"
	GITLAB_PRIVATE_TOKEN="<token>"
	GITLAB_ADDRESS="gitlab.<name>"

	for i in `curl -s "https://$GITLAB_ADDRESS/api/v4/groups/$GITLAB_GROUP/projects?private_token=$GITLAB_PRIVATE_TOKEN&per_page=999" \| \
	grep -o "\"ssh_url_to_repo\":[^ ,]\+" \| \
	awk -F ':' '{gsub(/"/, "", $2); gsub(/"/, "", $3); print $2":"$3}'`; do git clone $i; done

Anurag Mathur anuragmathur1