Ben Hall BenHall

## jwt.js
var fs = require('fs');
var jwt = require('jsonwebtoken');

var token = jwt.sign({ foo: 'bar' }, 'blah');

var decoded = jwt.verify(token, 'blah');
console.log("Decodable at https://jwt.io/#debugger", token, decoded.foo); // bar

// invalid token - synchronous
try {

## docker-compose.yml
web:                  # Container Name
  build: .            # Build
  links:              # Links
    - elasticsearch
  ports:              # Ports
    - 3000
  environment:        # Environment
    VIRTUAL_HOST: ’www.katacoda.com'
    NODE_ENV: 'production’

## .gitlab-ci.yml
variables:
  IMAGE_NAME: https://HOST2_SUBDOMAIN-80-KATACODA_HOST.environments.katacoda.com/root/front-end
  TAG: $CI_BUILD_ID
stages:
  - build
  - push
  - cleanup
build_production:
  stage: build
  script:

## Docker London Mentor Week Instructions.md

      
              1 file
            
          
              1 fork
            
          
              1 comment
            
          
              6 stars
            
          
                BenHall
                / Docker London Mentor Week Instructions.md
            
            
              Last active
              April 7, 2020 23:49
            
          
    TLDR: RSVP at https://www.meetup.com/Docker-London/events/234774339/, make sure you have a Docker Hub account, and bring your laptop fully charged with Docker set-up. See below for some further instructions and details.
Create a Docker Hub account here at https://hub.docker.com. You will need a Docker Hub account to access the course materials.
Set-up Docker on your laptop (you will need to bring your computer):
Linux users: we need you to install Docker Engine and Docker compose. Make sure you have Docker compose version 1.6 or higher by running docker-compose version from the command prompt.
Mac users: install Docker for Mac or if you have an older Mac, Docker Toolbox.
Windows users: if you have Windows 10 pro install Docker for Windows, otherwise install Docker Toolbox. If you want to try the new Windows containers, go through the setup steps in the Windows Container lab. It is essential to run this command in Powershell before coming to the event:

  
## gist:e6432815663a7996b955726b3c4eb67a
Given this profile:
```
cat b.json
{
    "defaultAction": "SCMP_ACT_ALLOW",
    "architectures": [
        "SCMP_ARCH_X86_64",
        "SCMP_ARCH_X86",
        "SCMP_ARCH_X32"
    ],

## postgres.service
[Unit]
Description=PostgreSQL container
Requires=docker.service
After=docker.service

[Service]
Restart=on-failure
RestartSec=10
ExecStartPre=-/usr/bin/docker stop postgres
ExecStartPre=-/usr/bin/docker rm postgres

## docker-data-container.sh
docker create -v /config --name data busybox
touch some.config
docker cp some.config data:/config/
docker run --volumes-from data -it ubuntu bash

## bash.js
<script src="//katacoda.com/embed.js"></script>
<div id="inline-terminal-1" data-katacoda-env="bash" style="height: 500px;"></div>

## config.json
{
	"version": "0.2.0",
	"platform": {
		"os": "linux",
		"arch": "amd64"
	},
	"process": {
		"terminal": true,
		"user": {
			"uid": 0,

## es6-generator.js
// Example from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Iterators_and_Generators

function* idMaker(){
  var index = 0;
  while(true)
    yield index++;
}

var gen = idMaker();
	var fs = require('fs');
	var jwt = require('jsonwebtoken');

	var token = jwt.sign({ foo: 'bar' }, 'blah');

	var decoded = jwt.verify(token, 'blah');
	console.log("Decodable at https://jwt.io/#debugger", token, decoded.foo); // bar

	// invalid token - synchronous
	try {
	web: # Container Name
	build: . # Build
	links: # Links
	- elasticsearch
	ports: # Ports
	- 3000
	environment: # Environment
	VIRTUAL_HOST: ’www.katacoda.com'
	NODE_ENV: 'production’
	variables:
	IMAGE_NAME: https://HOST2_SUBDOMAIN-80-KATACODA_HOST.environments.katacoda.com/root/front-end
	TAG: $CI_BUILD_ID
	stages:
	- build
	- push
	- cleanup
	build_production:
	stage: build
	script:
	Given this profile:
	```
	cat b.json
	{
	"defaultAction": "SCMP_ACT_ALLOW",
	"architectures": [
	"SCMP_ARCH_X86_64",
	"SCMP_ARCH_X86",
	"SCMP_ARCH_X32"
	],
	[Unit]
	Description=PostgreSQL container
	Requires=docker.service
	After=docker.service

	[Service]
	Restart=on-failure
	RestartSec=10
	ExecStartPre=-/usr/bin/docker stop postgres
	ExecStartPre=-/usr/bin/docker rm postgres
	docker create -v /config --name data busybox
	touch some.config
	docker cp some.config data:/config/
	docker run --volumes-from data -it ubuntu bash
	<script src="//katacoda.com/embed.js"></script>
	<div id="inline-terminal-1" data-katacoda-env="bash" style="height: 500px;"></div>
	{
	"version": "0.2.0",
	"platform": {
	"os": "linux",
	"arch": "amd64"
	},
	"process": {
	"terminal": true,
	"user": {
	"uid": 0,
	// Example from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Iterators_and_Generators

	function* idMaker(){
	var index = 0;
	while(true)
	yield index++;
	}

	var gen = idMaker();