kitten

Tiny multi-server automation tool.

Run command on multiple servers. Designed to be as simple as possible and play nice with Unix tools.

Installation

pip install kitten

Prerequisites

kitten can get IP addresses from AWS resources for you. For that you'll need to have your AWS credentials set up. You can do that using awscli:

pip install awscli

Then:

aws configure

Examples

Run command on servers

Use kitten run:

$ kitten run uptime ubuntu 18.105.107.20 34.229.135.48
18.105.107.20 run     uptime
34.229.135.48 run     uptime
18.105.107.20 17:11:48 up 2 days,  6:02,  0 users,  load average: 0.91, 2.99, 3.49
34.229.135.48 17:11:48 up 5 days, 11:19,  0 users,  load average: 6.34, 5.94, 5.72

• Replace ubuntu with the user used to log in on the servers
• Use -i to specify a private key
• Use --threads to specify the number of concurrent connections (defaults to 10)

Get IP addresses from AWS resources

Use kitten ip with either id, asg, elb or opsworks:

$ kitten ip asg my-tiny-asg
18.135.117.17
24.129.235.48

• By default only private IP addresses are returned. Use --public if you prefer public IPs
• You can change region using --region

If you're in a hurry, you can just paste any text that contains instance IDs:

$ kitten ip id prod-mongo-0901bc21990109ed4-eu my-hostname-06a2fc734534ef6d9
17.136.127.18
23.119.136.38

Download files from servers

Use kitten get:

kitten ip opsworks a283c671-d4c1-4dfa-a7c2-823b7f7b2c2c | xargs kitten get /tmp/system.log ubuntu

Upload file to servers

Use kitten put:

kitten ip asg big-prod-asg | xargs kitten put -i ~/.ssh/key.pem cat.jpg /tmp ubuntu