Practitioner Level

Troubleshooting a Broken Kubernetes Cluster

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30 minutes

2 Learning Objectives

About this Hands-on Lab

Every Kubernetes administrator will likely need to deal with a broken cluster at some point, whether a single node or the entire cluster is down. In this lab, you will be able to practice your troubleshooting skills. You will be presented with a broken Kubernetes cluster and asked to use your investigative skills to identify the problem and fix it.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Determine What is Wrong with the Cluster: Explore the cluster and determine which node is having issues. Then see if you can determine what is causing the node to fail.
Fix the Problem: Fix the issue with the broken node. Make sure your fix will keep the node working, even if the node is restarted again.

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Additional Resources

Your company, BeeBox, has a new Kubernetes cluster that was just built by an outside contractor. Last night, someone restarted the servers used to run this cluster. Ever since the restart, some of your team members are reporting issues with one of the worker nodes. Unfortunately, the contractor is no longer working with the company, so you will need to find and fix the problem.

Explore the cluster and determine what is causing the issues. Then take steps to fix the problem and ensure that it does not happen again.

What are Hands-on Labs

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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Whether you’re a small team, a global enterprise, or somewhere in between, we offer multiple plans so you can choose the one that best fits your needs.

Business Basic

^$ 33.27 / user monthly

Billed as $499 $399.20 / user yearly

Hands-on learning for smaller teams
Unlimited courses, quizzes, and practice exams
Full learn-by-doing experience with Hands-on Labs and Cloud Playground
User and skills analytics

Business Plus

^$ 46.60

Billed as $699 $559.20 / user yearly

Scalability for larger teams and entire organizations
Everything in Business Basic, plus:
Evaluate team readiness with Skills Assessment
Manage teams, single sign-on (SSO), and reporting
Fast-track learning with Study Groups and Accelerator Programs
Dedicated Customer Success Manager

Offer applies only to: new personal and business paying customers, existing personal and business customers who switch to an annual paid plan, and any additional annual plan licenses purchased by existing business customers. Offer valid for a limited time only, beginning 10:00AM CT on February 19, 2021. Offer may not be combined with other offers. Purchases are subject to applicable Terms of Use or Master Services Agreement.

Business Basic

$499 / year

Business Plus

$699 / year

Unlimited Courses

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Teams learn from anywhere with unlimited access to certification courses and deep dives on AWS, Azure, GCP, Linux, and so much more.

Unlimited Hands-on Labs

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Teams learn by doing with guided labs based on real-world scenarios in a secure, risk-free environment. Build new skills in as little as 15 minutes.

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Learners read along when sound isn’t an option and skip furiously scribbling notes. Our transcripts and captions are also fully searchable, making it easy to find exactly what they’re looking for.

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Snag clickable, PDF versions of core concepts to revisit later. Our diagrams make great study aids, help build retention, and can act as handy cheat sheets for a quick refresher down the road.

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Learning Accelerator

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Dedicated Customer Success Manager *

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* Available with 50+ seats

Plans & Pricing

Choosing is the first step

Whether you’re an individual learner, a global enterprise, or somewhere in between, we offer several plans so you can choose the one that best fits your needs.

Free

^$ 0 / month

Limited access to basic courses and features
Rotating selection of limited courses
Stay ahead with weekly cloud roundups
Engage with a vibrant community of learners and experts

Save 20%

Personal Basic

^$ 39 ^$ 25.57 / month

Billed as $379 $303.20 / user yearly

Pay Yearly Pay Monthly

Save 35% with annual plan!

Full access to our hands-on learning library
Unlimited courses, quizzes, & practice exams
Unlimited Hands-on Labs
Practice in real multi-platform servers

Save 20%

Personal Plus

^$ 33.27 / month

Billed as $499 $399.20 / user yearly

Everything in Personal Basic, plus:
Full learn-by-doing experience in real AWS, Azure, & GCP environments!
Unlimited access to full Cloud Sandboxes
No account setup or cloud bills

Offer applies only to: new personal and business paying customers, existing personal and business customers who switch to an annual paid plan, and any additional annual plan licenses purchased by existing business customers. Offer valid for a limited time only, beginning 10:00AM CT on February 19, 2021. Offer may not be combined with other offers. Purchases are subject to applicable Terms of Use or Master Services Agreement.

Free

Personal Basic

$379 $303.20 / year

Personal Plus

$499 $399.20 / year

Unlimited Courses

limited

Learn without limits

Learn from anywhere with unlimited access to certification courses and deep dives on AWS, Azure, GCP, Linux, and so much more.

Quizzes

limited

Pop quiz, hot shot

Quickly check your knowledge on a variety of topics and know where to brush up with short quizzes.

ACG Original Series

Keep up with the cloud

Stay up-to-date on all things cloud with weekly and monthly videos about the latest developments in AWS, Azure, GCP, and Kubernetes.

Community Forums

Cloud with friends

Get the help you need, when you need it, from industry experts and other learners in the community — and help others in turn.

Learning Paths

Go from novice to guru in your chose specialty

Not sure how to proceed? We’ll guide you through the exact skills you need to gain to progress from novice to guru across a variety of cloud specialties, including Architect, Security, and DevOps.

ACG Mobile Apps

Keep ACG in your pocket

Learn cloud from anywhere with our mobile apps for iOS and Android.

Mobile Offline Mode

Learn off the grid

No internet connection? No problem. Download courses for offline access with our app for iOS and Android.

Unlimited Hands-on Labs

Get your hands cloudy

Learn by doing with guided labs based on real-world scenarios in a secure, risk-free environment. Build new skills in as little as 15 minutes.

Practice Exams

Put your skills to the test

Prepare for your certs with practice exams that mimic the real thing. Plus, get personalized pointers on how to improve your score.

Interactive Diagrams

Study aids on demand

Snag clickable, PDF versions of core concepts to revisit later. Our diagrams make great study aids, help build retention, and can act as handy cheat sheets for a quick refresher down the road.

Video Transcripts & Captions

For the record

Read along when sound isn’t an option and skip furiously scribbling notes. Our transcripts and captions are also fully searchable, making it easy to find exactly what you’re looking for.

Records of Completion

Achievement unlocked

Earn a little something when you complete courses. Records of completion make it easy to mark and showcase your progress.

Email Support

Cloud on demand

Spin up pre-configured, auto-provisioned servers in just a few clicks. Cloud along with courses, practice whenever you feel like it, and never worry about a surprise cloud bill.

Cloud Playground - Instant Terminal

SSH on demand

Quickly launch a secure, in-browser SSH terminal into any instance on any provider – even behind a firewall.

Cloud Playground - Sandboxes

Personal Plus Only

Learn by doing

Learn by doing with Cloud Playground. Try out new cloud skills in live AWS, Azure, and GCP sandbox environments — without racking up a surprise bill. Cloud along with courses, test an idea at work or prepare for exams.

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Hands-on Labs

Troubleshooting a Broken Kubernetes Cluster

About this Hands-on Lab

Learning Objectives

Additional Resources

Plans & Pricing

Choosing is the first step

Business Basic

Business Plus

Learning without limits

Learn faster by doing

Take your teams from novice to guru

Cloud on demand

SSH on demand

Learn by doing

Keep up with the cloud

Put skills to the test

Pop quiz, hot shot

Cloud with friends

Keep ACG in your pocket

Learn off the grid

Achievement unlocked

For the record

Study aids on demand

We’re here to help

One dashboard to rule them all

Know where you stand

Get to the cloud faster

Learn better together

Skills at a glance

Easy organization by teams

Invite 10 to 10,000 or more

Connect all the dots

Get your bits

We’ve got your back

We’ll show you the ropes

Plans & Pricing

Choosing is the first step

Free

Personal Basic

Personal Plus

Learn without limits

Pop quiz, hot shot

Keep up with the cloud

Cloud with friends

Go from novice to guru in your chose specialty

Keep ACG in your pocket

Learn off the grid

Get your hands cloudy

Put your skills to the test

Study aids on demand

For the record

Achievement unlocked

We’re here to help

Cloud on demand

SSH on demand

Learn by doing

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