Saturday, October 22, 2022

Build Custom AWS Config rules using Guard DSL

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I want to use AWS config to report S3 buckets without public blocking enabled except for some buckets with prefix like www, there is a AWS m...
Friday, February 1, 2019

Send Docker container log to Splunk

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Docker engine has Splunk logging driver to send container logs to Splunk via HEC(http event collector. It is easy to setup, however it coul...
Wednesday, July 18, 2018

Python script to generate Ansible ini inventory file from csv file

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Ansible in memory inventory file created by add_host is often used in AWS EC2 provisioning. Inventory file can be generated easily,however i...
Wednesday, July 11, 2018

Ansible - turn values in CSV file into list of dictonary

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Ansible can load yaml values into Ansible variable easily, However I am still fan of plain CSV file, because it is easy to edit and has no s...
Thursday, October 30, 2014

Python script to run remote SSH commands with sudo permission

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I created a Python script to run remote SSH command with sudo permission. Linux SSH command doesn’t support password as command option, you...
Friday, September 5, 2014

Build Puppet module to use Hiera lookup

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Puppet can use Hiera to look up data. This helps you disentangle site-specific data from Puppet code, for easier code re-use and easier mana...
Thursday, March 13, 2014

Setup SAN Boot for RHEL 6.x using native multipath on EMC storage

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Requirements: 1) RHEL 6.x (most apply to RHEL 5.x too, RHEL 5.x use mkinitrd instead of Dracut and the /etc/multipath.conf is slightly diff...