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Certified Kubernetes Administrator (CKA)


cka

alias for doing things quickly

alias k='kubectl'

alias ke='k edit'

alias kd='k describe'

alias ka='k apply'
alias kaf='ka -f'

alias kdl='k delete'
alias kdlf='kdl -f'

alias kg='k get'
alias kgr='kg rs'
alias kga='kg all'
alias kgs='kg svc'
alias kgp='kg pods'
alias kgn='kg nodes'
alias kgd='kg deploy'
alias kgi='kg ingress'
alias kgc='kg componentstatuses'

alias kc='k config'
alias kcg='kc get-contexts'
alias kcu='kc use-context'
alias kcc='kc current-context'

alias kx='kubectx'
alias kn='kubens'

source <(kubectl completion zsh)
complete -F __start_kubectl k

Be ready with 2 IDs at the time of exam

  1. Passport

You are allowed only transparent drinks with transparent bottle during the exam.

Get comfortable using vim and tmux for exam, as you will only have one terminal.

Multiple monitors usage is also allowed — use one for k8s docs on 1 monitor and exam on the other monitor. ( you will be asked to share both screens ).

Links which can be used during CKA Exam:

Resource Link
Kubernetes Github https://github.com/kubernetes/
Kubernetes Docs https://kubernetes.io/docs/
Kubernetes Blog https://kubernetes.io/blog/

CKA Certification Exam Candidate Resources:

Resource Link
CKA + CKAD Candidate Handbook https://training.linuxfoundation.org/go/cka-ckad-candidate-handbook
CKA + CKAD Exam Tips http://training.linuxfoundation.org/go//Important-Tips-CKA-CKAD
CKA + CKAD FAQ http://training.linuxfoundation.org/go/cka-ckad-faq

Ref: https://training.linuxfoundation.org/cncf-certification-candidate-resources/


CKA CLUSTERS

Cluster Members CNI Description
k8s 1 master, 2 worker flannel k8s cluster
hk8s 1 master, 2 worker calico k8s cluster
bk8s 1 master, 1 worker flannel k8s cluster
wk8s 1 master, 2 worker flannel k8s cluster
ek8s 1 master, 2 worker flannel k8s cluster
ik8s 1 master, 1 base node loopback k8s cluster − missing worker node

At the start of each task you'll be provided with the command to ensure you are on the correct cluster to complete the task.


Certified Kubernetes Administrator (CKA) Exam Curriculum:


Books to Read:

Books Link
Kubernetes: Up and Running https://azure.microsoft.com/en-in/resources/kubernetes-up-and-running
Managing Kubernetes https://pages.cloud.vmware.com/managing-kubernetes-ebook
Kubernetes in Action https://www.yunforum.net/pdf/kubernetes-in-action.pdf
Kubernetes The Hard Way (MUST READ) https://github.com/kelseyhightower/kubernetes-the-hard-way

Practice all Tasks & understand all Concepts:

Resource Link
Kubernetes Tasks https://kubernetes.io/docs/tasks/
Kubernetes Concepts https://kubernetes.io/docs/concepts/

Online Resources:

Resource Link
The Kubernetes Learning Resources List https://docs.google.com/spreadsheets/d/10NltoF_6y3mBwUzQ4bcQLQfCE1BWSgUDcJXy-Qp2JEU/view
CKA-Prep-List https://docs.google.com/spreadsheets/d/1mYzfkxu1Iaup3KgO7zhbz7C4nFadSEvogo-lDaFIXK0/view

Pro Tips (things to know before exam)

OpenSSL

comfortable generating certificates (.key, .crt, .csr, x509)

systemctl

managing services (status/start/stop/restart/enable/reload)

working with unit files (cat/show/edit)

journalctl

view logs for service

journalctl -u kubelet

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