DO280_OCP3.5_Red_Hat_OpenShift_Administration

DO280

OpenShift

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RED HAT

TRAINING

Comprehensive, hands-on training that solves real world problems

Red Hat OpenShift

Administration I

Student Workbook (ROLE)

Red Hat OpenShift Administration I

OCP 3.5 DO280

Red Hat OpenShift Administration I

Edition 1 20170829 20170829

Authors: Ravishankar Srinivasan, Fernando Lozano, Ricardo Jun Taniguchi,

Richard Allred, Victor Costea, Razique Mahroua

Editor: David O'Brien, Seth Kenlon

The contents of this course and all its modules and related materials, including handouts to

No part of this publication may be stored in a retrieval system, transmitted or reproduced in

any way, including, but not limited to, photocopy, photograph, magnetic, electronic or other

record, without the prior written permission of Red Hat, Inc.

This instructional program, including all material provided herein, is supplied without any

guarantees from Red Hat, Inc. Red Hat, Inc. assumes no liability for damages or legal action

arising from the use or misuse of contents or details contained herein.

If you believe Red Hat training materials are being used, copied, or otherwise improperly

distributed please e-mail training@redhat.com or phone toll-free (USA) +1 (866) 626-2994

or +1 (919) 754-3700.

Red Hat, Red Hat Enterprise Linux, the Shadowman logo, JBoss, Hibernate, Fedora, the

Infinity Logo, and RHCE are trademarks of Red Hat, Inc., registered in the United States and

other countries.

Linux® is the registered trademark of Linus Torvalds in the United States and other

countries.

Java® is a registered trademark of Oracle and/or its affiliates.

XFS® is a registered trademark of Silicon Graphics International Corp. or its subsidiaries in

the United States and/or other countries.

The OpenStack® Word Mark and OpenStack Logo are either registered trademarks/service

marks or trademarks/service marks of the OpenStack Foundation, in the United States

and other countries and are used with the OpenStack Foundation's permission. We are not

affiliated with, endorsed or sponsored by the OpenStack Foundation, or the OpenStack

community.

All other trademarks are the property of their respective owners.

Contributors: Jim Rigsbee, George Hacker, Rob Locke

DO280-OCP3.5-en-1-20170829 v

Document Conventions                                                                                                   vii

Notes and Warnings ................................................................................................ vii

Introduction                                                                                                                    ix

RedHat OpenShift Administration I ........................................................................... ix

Orientation to the Classroom Environment ................................................................. x

Internationalization ................................................................................................. xii

1. Introducing Red Hat OpenShift Container Platform                                                          1

Describing OpenShift Container Platform Features ...................................................... 2

Quiz: OpenShift Container Platform Features .............................................................. 5

Describing the OpenShift Container Platform Architecture ........................................... 9

Quiz: OpenShift Container Platform Architecture ....................................................... 16

Summary .............................................................................................................. 20

2. Installing OpenShift Container Platform                                                                       21

Preparing Servers for Installation ............................................................................ 22

Guided Exercise: Preparing for Installation ............................................................... 28

Running the Installer .............................................................................................. 32

Guided Exercise: Running the Installer ...................................................................... 37

Executing Postinstallation Tasks .............................................................................. 42

Guided Exercise: Completing Postinstallation Tasks .................................................... 47

Summary .............................................................................................................. 54

3. Describing and Exploring OpenShift Networking Concepts                                            55

Describing OpenShift's Implementation of software-defined networking ....................... 56

Guided Exercise: Exploring Software Defined Networking ........................................... 62

Creating Routes ..................................................................................................... 68

Guided Exercise: Creating a Route ........................................................................... 74

Lab: Exploring OpenShift Networking Concepts ......................................................... 79

Summary .............................................................................................................. 86

4. Executing Commands                                                                                                 89

Configuring Resources with the CLI ......................................................................... 90

Guided Exercise: Managing an OpenShift Instance Using oc ........................................ 98

Executing Troubleshooting Commands .................................................................... 105

Guided Exercise: Troubleshooting Common Problems ................................................. 111

Lab: Executing Commands ...................................................................................... 117

Summary ............................................................................................................. 124

5. Controlling Access to OpenShift Resources                                                                 125

Securing Access to OpenShift Resources ................................................................. 126

Guided Exercise: Managing Projects and Accounts .................................................... 132

Managing Sensitive Information with Secrets ........................................................... 140

Guided Exercise: Protecting a Database Password .................................................... 144

Managing Security Policies .................................................................................... 148

Quiz: Managing Security Policies ............................................................................ 153

Lab: Controlling Access to OpenShift Resources ....................................................... 155

Summary ............................................................................................................. 167

6. Allocating Persistent Storage                                                                                    169