edcote

GIT

Getting started

• Clone repository

  • Upload your public key to Bitbucket/GitHub
  • Clone using command: git clone git@bitbucket.org:<username>/<repo>.git

• Pull from master branch

• Use command git pull

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GitHub

Steps to submit a patch to a public repo

1. Fork the repository using GUI
1. Clone your forked repo
1. Create the branch locally, e.g.: `git branch devel-edcote` (should be descriptive name)
1. Push the new branch up to your fork: `git push origin devel-edcote`
1. Switch to your new new: `git checkout devel-edcote`

1. Do development work, make commits, ...

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Rocket Core Bootstrap

Specifications

User-Level ISA

Priviledge ISA

Running 'Hello, World!' on Spike

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https://www.cloudbees.com/blog/setting-jenkins-ec2-slaves http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/creating-an-ami-ebs.html

Amazon EC2

AWS Free Tier

750 hours per month of t2.micro instance usage. Need to use this carefully. Make sure to stop instances to avoid payment. A stopped instance will "loose" its IP address. You can pay for elastic IP addresses to fix this.

Instances

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CPU performance

My workstation's CPU has been throttling and/or running slow for the past 48 hours. Here are the commands that I used to debug the problem.

First, core temperatues were checked:

$ watch sensors
coretemp-isa-0000
Adapter: ISA adapter

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Win10 OpenSSH Tips

Don't ask. I dislike Windows.

• Recursively take ownership administrator group

  TAKEOWN /F "C:\WINDOWS\System32\OpenSSH" /R TAKEOWN /F "C:\WINDOWS\System32\OpenSSH" /A /R

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Docker

This install guide is used as the primary reference. Make sure to remove all old docker installs before continuing.

Also see: https://gist.github.com/edcote/0dfd1f9f26c628ba1a3dbb2860ebd7dd

Important commands

• List all containers docker ps -a
• Remove container docker rm #container

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Play Framework

Important files

Directory structure

• conf/routes defines how application routes HTTP GET requests to an action. Example:

# URI '/' calls index view (index.scala.html) 

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MongoDB

MongoDB stores data in flexible, JSON-like documents. The document model maps to object in your application code, making data easy to work with. MongoDB is a distributed database at its core.

Here. Be careful, need 3.4 or later.are notes on how to install MongoDB on RHEL7.

Spark and MongoDB

MongoDB is a document store (and essentially a database). Spark is a computing engine and not a store. When used together, Spark jobs can be executed directly on operational data sitting in MongoDB.

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Frontend Frameworks

NPM

npm is the package manager for JavaScript. Install using apt install npm.

• Setup repository: cd public/js && npm init -y

• Install modules and dependencies