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result=$(az resource show --resource-group "Tags-PRD-Web" --name kvktagsprdweb --resource-type "Microsoft.Web/sites" --query tags)
tags=$(echo $result | tr -d '"{},' | sed 's/: /=/g')
az resource tag --tags $tags Owner="Kasun Kodagoda" --resource-group "Tags-PRD-Web" --name kvktagsprdweb --resource-type "Microsoft.Web/sites"

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h2. Summary
 
*As* a VSHN customer user
*I want* to search and visualise my logs
*So that* I can check my application health and be aided with debugging it.-
 
h2. Context
 
APPUiO Public has 2.4TB Log Volumes for ~10 days retention.

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Some examples of SNAT, DNAT with iptables with comments

mainly used in start-up script

masquarade all outgoing packets to be WLAN0 IP

iptables -t nat -A PREROUTING -s 192.168.1.2 -i eth0 -j MASQUERADE

All packets leaving eth0 will have src eth0 ip address

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Deploy kubernetes-dashboard on Rancher 2.x cluster exposed using NodePort

This has been updated to install Dashboard v2.0.0, see below for pre v2.0.0 instructions

Requirements

• kubectl (https://kubernetes.io/docs/tasks/tools/install-kubectl/)

Step 1: Generate kubeconfig from the UI

Generate the kubeconfig file for your cluster using the Kubeconfig File button in the Cluster view of your cluster.

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System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

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# I book marked some sites with useful Linux commands i found.
# then i noticed they were down, so i loaded them via google cache, and copied here.
# source: http://blog.urfix.com/
# source: http://www.pixelbeat.org/cmdline.html
# Enjoy!

# How to run process as background and never die
#
# nohup means: Do not terminate this process even when the stty is cut off.
# > /dev/null means: stdout goes to /dev/null (which is a dummy device that does not record any output).

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#Linux Cheat Sheet

##File Commands:

• ls – directory listing
• ls -al – formatted listing with hidden files
• cd dir - change directory to dir
• cd – change to home
• pwd – show current directory
• mkdir dir – create a directory dir
• rm file – delete file

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ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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Web Resources

Course Textbooks

• Tim Jones homepage (author of primary textbook, note that book code is only on cdrom with book)
• GNU/Linux Application Programming (1st ed.) by Tim Jones (much of first edition of Jones text on Google Books)
• Beginning Linux Programming (4th ed.) by Matthew and Stones (alternative text, can download code from this site)
• free download of Beginning Linux Programming (4th ed.)