psgganesh

R Programming Project 3

github repo for rest of specialization: Data Science Coursera

The zip file containing the data can be downloaded here: Assignment 3 Data

Part 1 Plot the 30-day mortality rates for heart attack (outcome.R)

psgganesh

Adding envoy globally using

composer global require laravel/envoy

Update ~/.bashrc file to enable envoy on CLI

echo 'export PATH="$PATH:/home/forge/.config/composer/vendor/bin"' >> ~/.bashrc

psgganesh

Cleaner way to pass over .env vars to javascript ( Laravel .env -> .js )

There are times when we wanted to pass .env vars over to javascript, regardless of what type of framework is being used.

We tried the following methods.

• Passed to a js var wrapped inside a laravel blade file - which works but when viewed over the browser all the vars will be visible.We have stumbled over code where the js is embedded
• One step ahead, we used jeffery way's re-usable package PHP-Vars-To-JS
• One step further, we started passing the values over the meta attributes instead of cluttering the .blade.php files
• One more step ahead, probably this is the cleaner way - as .env is just another hidden file, why not let webpack and node read it !

psgganesh

In-house incident handling

Just like how services like

• Datadog
• Bugsnag
• Sentry
• Papertrial

Would do. Just one change, those would be added inside laravel project as a package where they would hijack the same from.

psgganesh

Laravel Eloquent Accessors and Mutators

Eloquent Accessors - All "get's" getFirstNameAttribute( $value ) ...

Eloquent Mutators - All " set's " setFirstNameAttribute( $value ) ....

How to use

Declare in your model files

Where to use

psgganesh

Complete tutorial
https://www.digitalocean.com/community/tutorials/how-to-create-a-high-availability-haproxy-setup-with-corosync-pacemaker-and-floating-ips-on-ubuntu-14-04

Below is the main trouble-shooting steps missed on the above post.

As per: Pathfinder - https://www.digitalocean.com/community/users/pathfinder - Run below also.

sudo apt-get install python-pip
sudo pip install requests

psgganesh

Login to console using digital ocean's browser based shell, login using root and the new password generated, 
and carry on with below steps

sudo nano /etc/ssh/sshd_config

Change

UsePAM yes
IgnoreUserKnownHosts no

psgganesh

#Fix locale issue
http://askubuntu.com/questions/162391/how-do-i-fix-my-locale-issue
sudo locale-gen en_US.UTF-8

# UFW rules to be enabled and added
https://www.digitalocean.com/community/tutorials/ufw-essentials-common-firewall-rules-and-commands

# Maria DB
http://idroot.net/linux/install-mariadb-ubuntu-16-04/

psgganesh

server {

    server_name <domain name>;
    listen 80;
    root /var/www/social/public_html;

    access_log /home/mautic/site/logs/access.log;
    error_log /home/mautic/site/logs/error.log;

    index index.php;

psgganesh

sudo apt-get update
sudo apt-get install update-manager-core
lsb_release -a
sudo do-release-upgrade --check-dist-upgrade-only --devel-release
sudo do-release-upgrade --devel-release