1. Classroom Environment¶
Before diving into Docker and Kubernetes, let’s take some time to explore the classroom environment. Understanding how things are currently configured is beneficial for your learning as you move forward in the class.
In this lab, we will explore this currently configured environment to help with the execution of future labs.
| Chapter Details | |
|---|---|
| Chapter Goal | Explore the classroom environment |
| Chapter Sections | |
1.1. Organizational Notes¶
All students have their own environments to perform exercises independently.
The instructor will assign personal environments at the beginning of the class.
1.2. Working with Remote Environment¶
For command line steps you need an SSH client:
- For Linux and OS X you should already have it.
- For Windows you can download the PuTTY SSH client from the Internet.
When working with files from command line, you can use any editors or file readers that you are familiar with and are available in default installation. Here are examples:
- Edit - vi, vim, or nano
- View - less, more, cat, or tail
Refer to the man page for specific command for details on options and usage.
Step 1 From your laptop’s shell environment or using PuTTY, connect via SSH protocol to the remote environment provided by your instructor. If you did not receive information on your personal lab environment, please ask your instructor. Log in using stack as the user name and b00tcamp as the password:
ssh stack@<lab IP>
Step 2 Check that you can execute commands as root user:
stack@lab:~$ sudo su
root@lab:/home/stack#
Step 3 To close the root session press Ctrl-D or execute exit:
root@lab:/home/stack# exit
stack@lab:~$
1.3. Frequently Asked Questions¶
This list contains frequently asked questions that pertain to the environment or exercises.
The specific step failed, or I cannot initiate the next step for some reason
The environment allows you to be flexible in choosing names, IP addresses and other parameters for the steps in this course. However, the chapters in the course are connected to each other in such a way that the results from one chapter are required for the next one. We highly recommend that you use names, IP addresses and other parameters exactly as they are specified in the steps below. Also, using the same parameters will help us identify the issue. We highly recommend that you execute all the steps as listed. Please do not skip any steps or make any additional unspecified steps, such as changing the default password.
If one specific step failed (for example, you have received unexpected error message), or you cannot initiate the next step for some reason, please check that you executed all previous steps exactly as they are specified.
If you feel as you executed all the steps correctly, ask the instructor. Be sure to let them know of any variations you may have made to the standard flow. The instructor will help you solve the issue, and in the worst case, can revert the whole environment to the one of the predefined state, so you can continue working with the class.
Checkpoint
- Receive a lab environment assignment
- Use SSH client to access the environment
- Read Frequently Asked Questions
