Piyush Tech Blog

Goal : This blog will help you with prometheus installation. Installation Steps. Create user without a home directory. sudo useradd --no-create-home --shell /bin/false prometheus Create directories to copy prometheus config and library files and give permission to user that you crated. sudo mkdir /etc/prometheus sudo mkdir /var/lib/prometheus sudo chown prometheus:prometheus /etc/prometheus sudo chown prometheus:prometheus /var/lib/prometheus Download and unzip prometheus from github. curl -LO https://github.com/prometheus/prometheus/releases/download/v2.3.2/prometheus-2.3.2.linux-amd64.tar.gz   tar -xvf prometheus-2.3.2.linux-amd64.tar.gz mv prometheus-2.3.2.linux-amd64 prometheus-files Copy prometheus binary files to bin directory and give permission. sudo cp prometheus-files/prometheus /usr/local/bin/ sudo cp prometheus-files/promtool /usr/local/bin/ sudo chown prometheus:prometheus /usr/l

Goal Trigger alert on elastic search stream.   Install Elastalert sudo yum install gcc sudo pip install elastalert sudo yum install git Just to get basic elastalert rules reference clone following git repository. git clone https://github.com/Yelp/elastalert.git example_elastalert Create your own rules sudo mkdir -p /etc/elastalert/rules_folder/ sudo cp ~/example_elastalert/example_rules/example_frequency.yaml /etc/elastalert/rules_folder/frequency.yaml sudo cp ~/example_elastalert/config.yaml.example /etc/elastalert/config.yaml Configure Elastalert sudo vi /etc/elastalert/config.yaml Search for 'rules_folder', 'es_host' and change values in file rules_folder: "/etc/elastalert/rules_folder" es_host: localhost Now Open File  and change conf sudo vi /etc/elastalert/rules_folder/frequency.yaml filter: - term: _type: "apache-error" - query: query_string: query: "host:HostName" alert: - "email" include: [

Goal:   In these article we gonna learn How to capture your Real Time traffic from production and reuse it at your testing/development environment. Prerequisite: One web server running, or If you are just playing around then you can run goreplay test ftp server. Let's Begin Load Testing for site serving millions user wasn't be that easy before I came to know GoReplay . Here I am not gonna explain you How great go replay is, You will automatically get to know after following steps above step to capture and replay your request logs. FYI GoReplay capture logs from tcpdump. Installation: Download zip file from there git repo and unzip it. # create a directory mkdir ~/goreplay # go to directory you created cd ~/goreplay # download tar file from goreplay git repo wget https://github.com/buger/goreplay/releases/download/v0.16.1/gor_0.16.1_x64.tar.gz # unzip it tar -xf gor_0.16.1_x64.tar.gz After Unzipping Check GoReplay binary File is available in directory. Ca