jhunt

# Internship Projects
#sw

These are write-ups for potential internship projects.  These projects are fully self-contained (though they most assuredly exist within the confines of a larger project like SHIELD or Cloud Foundry), and can be executed within 3 months by a team of 3-4 moderately talented junior-year computer science students.

## SHIELD etcd Data Protection Plugin
The Kubernetes container orchestration system relies on a single persistent data store for its metadata and configuration needs: etcd.  This distributed key-value store is vital to the proper operation of Kubernetes and, assuming identical replacement hardware / component configuration, the data in etcd is all that an operator needs to resurrect a dead cluster.

Design and build a SHIELD Data Protection Plugin for backing up the data in etcd, and restoring data to etcd from those archives.  This plugin must work within the existing contract SHIELD has for "target" plugins.  To enable this effort, you will need to be able to deploy and va

jhunt

#!/bin/bash
set -eu

useradd jhunt -Nm -c 'James Hunt' -d /home/jhunt -g staff -G staff -s /bin/bash

cat >/etc/sudoers.d/staff <<EOF
%staff ALL=(ALL:ALL) NOPASSWD:ALL
EOF

install -d -o jhunt -g staff -m 0700 ~jhunt/.ssh

jhunt

Most active GitHub users (git.io/top)

The count of contributions (summary of Pull Requests, opened issues and commits) to public repos at GitHub.com from Fri, 29 Sep 2017 17:55:27 GMT till Sat, 29 Sep 2018 17:55:27 GMT.

Only first 1000 GitHub users according to the count of followers are taken. This is because of limitations of GitHub search. Sorting algo in pseudocode:

githubUsers
 .filter(user => user.followers > 1000)

jhunt

Note: these instructions are for pre-Sierra MacOS. Sierra Users: see https://gist.github.com/gravitylow/fb595186ce6068537a6e9da6d8b5b96d by @gravitylow.

If you are getting this in gdb on OSX while trying to run a program:

Unable to find Mach task port for process-id 57573: (os/kern) failure (0x5).
 (please check gdb is codesigned - see taskgated(8))

1. Open Keychain Access

jhunt

Hush API

Hush is a dead-simple, no-frills credentials management and secure storage vault. It aims to be secure, stable, and simple, in that order.

Vault Operations

To query the status of the Vault:

jhunt

package main

import "fmt"

func main() {
	chans := make([]chan int, 4)
	for i := range chans {
		chans[i] = make(chan int, 0)
	}

jhunt

# to use this file, first get cc-me from https://github.com/jhunt/cc-me
# then, run this:
#    spruce merge cc.yml | spruce json | cc-me
---
vsphere:
  cc:
    azs:
      - name: z1
        cloud_properties:
          datacenters:

jhunt

for org in $(cf curl /v2/organizations | jq -r .resources[].metadata.guid); do
	echo "==ORG"
	cf curl /v2/organizations/$org | jq -r .
	echo ; echo ; echo

	for space in $(cf curl /v2/organizations/$org/spaces | jq -r .resources[].metadata.guid); do
		echo "==SPACE"
		cf curl /v2/spaces/$space | jq -r .
		echo ; echo ; echo

jhunt

for org in $(cf curl /v2/organizations | jq -r .resources[].metadata.guid); do
	echo "==ORG"
	cf curl /v2/organizations/$org | jq -r .
	echo ; echo ; echo

	for space in $(cf curl /v2/organizations/$org/spaces | jq -r .resources[].metadata.guid); do
		echo "==SPACE"
		cf curl /v2/spaces/$space | jq -r .
		echo ; echo ; echo

jhunt

/* for execvpe(...): */
#define _GNU_SOURCE

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>