Docker101

A guide for anyone to start their own Docker tutorial

Requirements:

• Google Cloud Account
• Personal/work computer

THIS DOCUMENT IS CURRENTLY A WORK IN PROGRESS

Warning: This document has high entropy, last valid test TBD

Create your Google Cloud Account

1. Click on above link

• Get through payment to free trial (if you haven't used google cloud)
• Enable billing (you won't be charged if within your trial window)

2. Deploy the VM

• Arrive at Google Cloud Console
• In top search bar type Ubuntu focal and select the result
• Click Launch
• Change Firewall and Region options
  • Select a region close to you
  • Allow HTTP and HTTPS Traffic (if you choose to keep this environment change this to HTTPS only after this tutorial)
• Click Create at the bottom of the page
  • You will land on the VM Instances page
• Select Connect -> Open in Browser Window to open SSH session

3. Copy down the External IP field

• Note: This IP will likely change when instance is powered off/on

Install Docker CE

1. Uninstall old versions

• $ sudo apt-get remove docker docker-engine docker.io containerd runc

2. Update 'apt' package index

• $ sudo apt-get update

3. Install packages to allow apt to use a repository over HTTPS

$ sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common

4. Add Docker's Official GPG key

• curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

5. Verify key fingerprint [9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88]

• $ sudo apt-key fingerprint 0EBFCD88

6. Perform architecture specific install (x86-64 below, others in source document, link in docker header)

• NOTE: 'bionic' is a temporary fix until 20.04 is supported by Docker, check install link before running!

$ sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   bionic \
   stable"

• Use uname -m to determine your architecture

7. Install Docker CE

• $ sudo apt-get update
• $ sudo apt-get install docker-ce docker-ce-cli containerd.io

8. Enable docker on startup

• $ sudo systemctl enable docker

Deploy your first container!

1. From SSH Terminal

• type and enter $ sudo docker run -dp 80:80 dockersamples/101-tutorial

2. Open your web browser and go to http://<your external ip>

Follow the Guide