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Varun Palekar varunpalekar

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@varunpalekar
varunpalekar / Chef_basics.md
Last active November 14, 2018 06:12
Chef

This document includes details about chef-dk tool set.

Chef-dk tool set consists of following tools:

  • chef
  • kitchen
  • berks
  • chef-apply
  • chef-client
  • chef-shell
@varunpalekar
varunpalekar / mysql.md
Last active May 23, 2017 08:28
mysql

Create database dump

mysqldump -h mysqlhost --port 3306 -u reporting -p database_name | gzip > database_name_$(date '+%y-%m-%d').gz

Restore mysql dump to database

mysql -u <user> -p -h mysqlhost [database] < db_backup.dump

See size of all Database in MySQL

@varunpalekar
varunpalekar / Java Application Monitoring.md
Last active May 23, 2017 05:54

1 Java Application Monitoring Architecture

2 Components:

2.1 Application Metric monitoring agent StageMonitor:

An open source solution to application performance monitoring for java server applications. Its application is divided in two main parts:

@varunpalekar
varunpalekar / saltstack.md
Created May 23, 2017 05:55

Run normal shell command on:

salt '*' cmd.run 'hostname'

In above cmd => function and run => module function of main function, you can also write your own function and many people already made many of them, you can also use them.

salt '*' disk.usage

Above function is for disk usage

@varunpalekar
varunpalekar / jenkins.md
Created May 23, 2017 05:56
@varunpalekar
varunpalekar / integrate_cfn-init.md
Created May 23, 2017 06:00

Re-run cloud-init

=================

sudo rm -rf /var/lib/cloud/* sudo cloud-init init sudo cloud-init modules -m final

cfn-init

========

@varunpalekar
varunpalekar / setup_more_than_one_tomcat.md
Last active February 22, 2018 08:04
Tomcat

Tomcat7 setup extra application instance on Ubuntu

  1. Install tomcat7-user package
  2. Run following command sudo tomcat7-instance-create -p 8081 -c 8006 tomcat7_odc
  3. Copy /etc/init.d/tomcat7 to /etc/init.d/tomcat7_odc for service file
  4. Make folder common if required in tomcat7_odc directory
  5. copy /etc/tomcat7/policy.d to tomcat7_odc/conf/policy.d
  6. copy server.xml to new installed conf folder if required.
  7. Copy /etc/default/tomcat7 to /etc/default/tomcat7_odc
@varunpalekar
varunpalekar / cloudwatch_ec2_integration.md
Created May 23, 2017 06:03

Make AWS IAM role/user for access cloudwatch

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "logs:CreateLogGroup",
@varunpalekar
varunpalekar / FTP upload from curl.md
Last active May 28, 2017 20:38
small tweaks

FTP cli upload by curl

curl -T file.zip --progress-bar ftp.server.com --user user:pass

@varunpalekar
varunpalekar / elastic_alert.md
Created May 23, 2017 06:13
elasticsearch

elastalert Used for alert Elasticsearch Events:

Rules parameters

# (Required)
# Rule name, must be unique
name: Java Error application