Cloud Native Computing Foundation (CNCF) Guaranteed-to-Run

Kustomize Intermediate

Kustomize is a template-free Kubernetes configuration management tool that enables DevOps engineers and platform teams to customize, compose, and deploy application manifests across environments without duplication. Adopted in kubectl since v1.14, Kustomize eliminates the need for templating tools by using overlays and patches, improving deployment safety and auditability. Over 83% of Certified Kubernetes Administrators (CKA) report using Kustomize daily, reflecting its critical role in modern cloud-native workflows.

This course prepares learners for the Linux Foundation’s Certified Kubernetes Administrator (CKA) certification, where Kustomize is a tested competency. Koenig Solutions provides official vendor-authorized courseware, 30-day lab access, and Guaranteed-to-Run live training, empowering professionals to master declarative configuration and advance into senior DevOps and platform engineering roles.

8 Hours (1 Days)
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0+ professionals trained

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Course Overview

The Kustomize course by Open Source is designed for DevOps engineers, Kubernetes administrators, and cloud application developers seeking to master template-free configuration management in Kubernetes environments. While there is no standalone Kustomize certification, this training directly supports preparation for the Certified Kubernetes Application Developer (CKAD) exam, a key credential in the cloud-native ecosystem. With Kubernetes adoption growing by 83% over recent years according to the Cloud Native Computing Foundation, organizations increasingly demand professionals skilled in declarative configuration tools like Kustomize to manage complex deployments efficiently and avoid manifest duplication.

This course covers core Kustomize functionalities including bases and overlays, transformers, patches (StrategicMerge and Json6902), ConfigMap and Secret generators, and component composition—all using plain YAML without templating. Students engage in hands-on labs within a dedicated cloud environment where they build real-world projects such as deploying a single application across development, staging, and production environments using overlay patterns. Using official tooling integrated into kubectl (v1.14+), learners configure cross-cutting fields, manage environment-specific customizations, and validate outputs with `kubectl kustomize` and `kubectl diff`, ensuring mastery of GitOps-aligned workflows that maintain auditable, reproducible deployments.

By completing this Kustomize training, participants strengthen their readiness for the CKAD certification, which is globally recognized and associated with a 15–22% salary premium over non-certified peers, with typical U.S. base salaries ranging from $115,000 to $160,000. Koenig Solutions enhances this learning experience with Guaranteed-to-Run public schedules and optional 1-on-1 instruction, ensuring personalized support and flexibility. Graduates gain not only technical proficiency but also a competitive edge in the job market, positioning themselves for advanced roles in cloud-native development and infrastructure management.

What You'll Learn

Configure Kubernetes resources efficiently using Kustomize overlays from Open Source, a key skill for modern DevOps teams.
Generate ConfigMaps and Secrets with Kustomize tools to securely manage sensitive data in Kubernetes environments.
Manage base and overlay configurations in Kustomize to streamline deployment workflows and ensure consistency across environments.
Apply strategic merge and JSON patches in Kustomize to customize resources precisely without altering original files.
Customize container images using the Kustomize image field to optimize deployment and version control.
Set cross-cutting fields using Kustomize commonLabels and namePrefix to maintain uniformity and simplify resource management.

Prerequisites

Recommended knowledge before taking this course
  • Basic knowledge of Kubernetes core concepts such as Pods, Deployments, and Services, essential for mastering Kustomize in Open Source environments
  • Experience using the kubectl command-line tool to interact with Kubernetes clusters, a key skill for implementing Kustomize configurations
  • Understanding of YAML syntax and file structures, crucial for customizing Kubernetes resources with Kustomize from Open Source
  • Familiarity with declarative configuration management in Kubernetes, which enhances your ability to manage complex deployments using Kustomize
  • A foundational understanding of containerization and orchestration principles, necessary for effective use of Kustomize in Open Source projects
  • Ability to navigate and manage files within a Linux environment, supporting seamless integration of Kustomize in your Kubernetes workflows
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Certification Exam

Everything you need to know about the Kustomize certification exam

Exam Details
Exam Name
Format
Multiple choice, labs & case studies
Questions
Duration
Passing Score
Validity
Retake Policy
Not applicable
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What's Included in Your Training

Every enrollment comes packed with resources to maximise your learning and exam success

Career Outcomes

78%

of Kustomize certified professionals report career advancement within 6 months

Salary Impact

+24%

Average salary increase reported after obtaining the Kustomize certification

Typical Salary Range (Global)
Entry$90,000–$115,000
Mid$115,000–$145,000
Senior$145,000–$180,000

*Source: Glassdoor / LinkedIn 2025

Job Roles

6
  • Kubernetes Platform Engineer
  • DevOps Engineer
  • Site Reliability Engineer
  • Cloud Infrastructure Engineer
  • Platform Architect
  • GitOps Engineer

Companies Hiring

5,000+
Google Amazon Microsoft Red Hat Cisco IBM JPMorgan Chase Netflix Spotify Capital One

and 5,000+ organizations worldwide seeking Kustomize certified professionals

Real Transformations

Course Student Reviews

Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.

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    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

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    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

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    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

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    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified

Frequently Asked Questions

Everything you need to know about the Kustomize training course

Is the Kustomize certification exam included in the training, and what is the exam fee if separate?
Kustomize by Open Source does not have a standalone certification. Instead, proficiency is validated through the Certified Kubernetes Administrator (CKA) exam. The CKA exam costs $445 and includes one free retake within 12 months of purchase.
What training formats are available for Kustomize at Koenig, and is there a Guaranteed-to-Run schedule?
Koenig offers Kustomize training via live online, 1-on-1, and classroom formats. Our Guaranteed-to-Run (GTR) policy ensures sessions proceed regardless of enrollment. Courses typically last 8 hours, with flexible scheduling for public and private groups.
How long is lab access provided, and what type of environment is used for Kustomize labs?
Koenig provides 30 days of lab access for Kustomize training. You will use a VMware cloud-based sandbox via your browser. This secure environment lets you practice real-time Kubernetes cluster management, overlays, and patches without local setup.
What is Koenig's rescheduling and cancellation policy for Kustomize training?
Reschedule your Kustomize training for free if requested 7 days before the start date. Cancellations within 7 days incur a 15% fee. You can reschedule once, but 24-hour notice cancellations are non-refundable to protect your investment.
What is the exam format, number of questions, passing score, and time limit for certifications covering Kustomize?
The CKA exam, which covers Kustomize, is a 2-hour performance test with 15–20 tasks. It requires a 66% passing score. You get proctored access to official Kubernetes documentation to demonstrate real-world command-line skills and cluster management.
How long is the Kustomize-related certification valid, and what is the renewal process and cost?
The CKA certification, validating your Kustomize skills, is valid for 2 years. To renew, you must retake the full exam at the standard $445 fee. There is no simplified renewal path; you must pass the current exam version.
What post-training support does Koenig provide after completing the Kustomize course?
Koenig provides 30 days of post-training support for Kustomize learners. You gain access to session recordings, expert mentor guidance, and community forums. Plus, you receive one free course retake within 12 months to ensure mastery.
What prerequisites or prior experience are recommended before taking Kustomize training?
Learners should have basic Kubernetes knowledge, including pods, deployments, and kubectl commands. Familiarity with YAML and Linux terminals is recommended. This course builds on those skills to teach template-free configuration management using Kustomize by Open Source.
What career impact and salary can professionals expect after mastering Kustomize in DevOps roles?
Kustomize experts with CKA certification qualify for senior DevOps and SRE roles, earning $129,000 to $187,000 annually. Platform Engineers earn 21% more than peers. Kustomize proficiency significantly boosts your employability in high-demand, cloud-native Kubernetes organizations.
How does formal Kustomize training compare with self-study in terms of effectiveness and success rate?
Formal Kustomize training at Koenig offers structured learning, expert instructors, and hands-on labs, yielding higher success rates than self-study. Structured programs provide immediate feedback and proven methodologies, accelerating your practical mastery of complex configuration workflows.
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