Srimal Nishantha srimaln91

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Focusing

Think twice, Code once. :)

srimaln91 / rocksdb-install.sh

Last active January 23, 2024 13:29

Install RocksDB on Ubuntu 20.04 (Focal Fossa)

	#!/bin/bash

	ROCKSDB_VERSION=5.11.3

	#Run as a root user
	if [ "$EUID" -ne 0 ]
	then echo "Please run as root (with sudo command)"
	exit
	fi

srimaln91 / etcd_admin.sh

Created January 18, 2021 12:22

ETCD User/Role Management Commands

	ETCD User/Role Management Commands

	# Users
	etcdctl --endpoints {etcd_host}:2379 --user root --password {pass} user list
	etcdctl --endpoints {etcd_host}:2379 --user root --password {pass} user add <user_name>

	# Roles
	etcdctl --endpoints {etcd_host}:2379 --user root --password {pass} role list
	etcdctl --endpoints {etcd_host}:2379 --user root --password {pass} role add {role_name}
	etcdctl --endpoints {etcd_host}:2379 --user root --password {pass} role grant-permission {role_name} --prefix=true read /system/delivery-services/

srimaln91 / reset-grafana-password.sh

Created January 20, 2021 19:13

Reset Grafana admin password in Docker container

docker exec -ti <container_name> grafana-cli admin reset-admin-password --homepath /usr/share/grafana mypass@123

srimaln91 / node-exporter.sh

Created February 1, 2021 16:23

Setup node exporer in Debian/RedHat based Linux systems

	#!/bin/bash

	#Run as a root user
	if [ "$EUID" -ne 0 ]
	then echo "Please run as root (with sudo command)"
	exit
	fi

	#Colours
	GREEN='\e[32m'

srimaln91 / rocksdb_centos.sh

Created March 3, 2021 12:00

Install RocksDB in CentOS7

	#!/bin/bash
	set -ex

	ROCKSDB_VERSION="5.18.4"
	ZSTD_VERSION="1.1.3"

	yum update -y && yum install epel-release -y

	yum install -y \
	wget \

srimaln91 / docker-compose.yml

Last active September 6, 2021 18:14

Docker compose file for Kafka, Zookeeper, Confluent Schema Registry

	---
	version: '2'
	services:
	zookeeper:
	container_name: zookeeper
	image: confluentinc/cp-zookeeper:latest
	environment:
	ZOOKEEPER_CLIENT_PORT: 2181
	ZOOKEEPER_TICK_TIME: 2000

srimaln91 / gitlab-runner.sh

Created September 27, 2021 17:13

Setup Gitlab Runner - Docker

	apt install docker.io
	docker volume create gitlab-runner-config
	docker run -d --name gitlab-runner --restart always -v /var/run/docker.sock:/var/run/docker.sock -v gitlab-runner-config:/etc/gitlab-runner gitlab/gitlab-runner:latest
	docker run --rm -it -v gitlab-runner-config:/etc/gitlab-runner gitlab/gitlab-runner:latest register

srimaln91 / tombstone.sh

Created June 20, 2022 08:04

Apache Kafka - Producng Tombstone record using KafkaCat

echo "key:" | kafkacat -b <broker1,broker2> -t <topic> -p <partition> -Z -K: -e

srimaln91 / auto_increment_usage.sql

Created July 15, 2022 04:48

Find out the usage of MySQL auto increment fields

srimaln91 / routes.sh

Created October 15, 2022 17:58

Enable internet sharing in the local network

	# ! /bin/bash
	# Share internet connection
	# enxfcde56ff0106 -> interface which has an internet connection
	# enp1s0 -> Interface which has connected to the network that we have to share the internet
	# 192.168.100.0/24 -> local subnet
	# Please replace the above values/interaces with the ones you have in your computer

	sudo iptables -A FORWARD -o enxfcde56ff0106 -i enp1s0 -s 192.168.100.0/24 -m conntrack --ctstate NEW -j ACCEPT
	sudo iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
	sudo iptables -t nat -F POSTROUTING