acsrujan’s gists

acsrujan / logrotate.conf

Created January 9, 2017 10:05

logrotate config with most of the options.

	#To rotate file every 100kb, truncate the file and delete the older logs.
	#This keeps only latest 100kb.
	/var/logs/randomdump.log
	{
	size 100k
	copytruncate
	rotate 0
	}

	# Copytruncate avoids file delete and create new file.

acsrujan / homebrew.yml

Created September 15, 2016 18:15

Setting up new Mac with Ansible

	---
	- hosts: all
	tasks:
	- name: Installs homebrew if not already present
	command: brew -v
	register: brew_check
	- name: install homebrew with curl
	command: /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
	when: brew_check.stdout.find('command not found') > -1

acsrujan / updatesudoers.yml

Created September 12, 2016 09:39

Ansible Playbook to update sudo file on ubuntu with NOPASSWD for all users with 'sudo' permission.

	---
	#Updates sudo file on ubuntu with NOPASSWD for all users.
	- hosts: all
	sudo: yes
	tasks:
	- name: Allow 'sudo' group to have passwordless sudo
	lineinfile:
	dest: /etc/sudoers
	state: present
	regexp: '^%sudo'

acsrujan / connectionTest.sh

Last active July 18, 2016 09:18

Script to test connection of a host, port and print time taken for each connection. Output is STDOUT.

	#!/bin/bash
	START=`date +%s`
	while [ $(( $(date +%s) - 30 )) -lt $START ]; do
	{ time nc -zw30 <host ip> <port>;} \|& grep real \| awk '{print $2}'
	done

acsrujan / Instructions.md

Last active June 2, 2016 01:34

nginx load balancing nodejs

Download Repo in /var/www/ folder.

acsrujan / gist:9c1e564ae337dff56419989e8587c694

Created April 8, 2016 12:00

	To find largest inode directory.
	```for i in /*; do echo $i; find $i \|wc -l; done```

acsrujan / ELB-detach-attach.sh

Last active September 2, 2016 06:51

Detach and Attach a random instance to an ELB.

	#!/bin/bash
	LOAD_BALANCER_NAME=$1
	Instance_ids_str=`aws elb describe-load-balancers --load-balancer-name $LOAD_BALANCER_NAME --query "LoadBalancerDescriptions[].{ID:LoadBalancerName,InstanceId:Instances[].InstanceId}[]. {ELB:ID,InstanceId:InstanceId[]}" --output=json \|jq -r ".[].InstanceId\|@csv" \|sed 's/\"//g'`
	IFS=',' read -a Instance_ids_array <<< "$Instance_ids_str"
	for INSTANCE_ID in ${Instance_ids_array[$RANDOM % ${#Instance_ids_array[@]}]}
	do
	aws elb deregister-instances-from-load-balancer --load-balancer-name $LOAD_BALANCER_NAME --instances $INSTANCE_ID
	aws elb register-instances-with-load-balancer --load-balancer-name $LOAD_BALANCER_NAME --instances $INSTANCE_ID
	done

acsrujan / rails_log_parse.sh

Last active March 17, 2016 14:09

Parses rails log file from bash to find out requests which took more than 75sec

arr=```grep -o "in.*ms" $LOG_FILE_NAME | awk '{if ($2-75000ms > 0) print $2}' | sort -r -n``` | for i in $arr; do grep -B 1 $i $LOG_FILE_NAME |awk '{print $2 FS $3}'; echo $i; done

acsrujan / params_windows.py

Last active September 2, 2016 06:52

	import platform
	import os
	import multiprocessing

	os_name = platform.system()
	print ("os_name:"+os_name)
	os_version = platform.version()
	print ("os_version:"+os_version)

	cpu_architecture = platform.architecture()[0]

acsrujan / deploy_loadbalancer.sh

Last active December 4, 2016 19:11

Deploying to an ELB backed application when you have a deployment script to do on one instance.

	$LOAD_BALANCER_NAME=""
	Instance_ids=`aws elb describe-load-balancers --load-balancer-name $LOAD_BALANCER_NAME --query "LoadBalancerDescriptions[].{ID:LoadBalancerName,InstanceId:Instances[].InstanceId}[]. {ELB:ID,InstanceId:InstanceId[]}" --output=json \|jq -r ".[].InstanceId\|@csv"`
	for $INSTANCE_ID in ${Instance_ids[@]}:
	do
	private_ip=`aws ec2 describe-instances --instance-id $id \|jq -r '.Reservations[].Instances[] \| .PrivateIpAddress'`
	aws elb deregister-instances-from-load-balancer --load-balancer-name $LOAD_BALANCER_NAME --instances $INSTANCE_ID
	`ssh $username@$private_ip` < deployment_script.sh
	aws elb register-instances-with-load-balancer --load-balancer-name $LOAD_BALANCER_NAME --instances $INSTANCE_ID
	done

Srujan acsrujan