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CL-305 Cloud & Platform

Kubernetes Administration

Operate Kubernetes with confidence: architecture, workloads, services and ingress, configuration and secrets, storage, RBAC, scheduling, and the debugging craft — drilled through timed break-fix scenarios until kubectl investigation becomes reflex.

B3Practitioner
6modules
42skill atoms
4role journeys
Curriculum

What this course covers.

6 modules, 42 named skill atoms. Expand any module to see them.

1Cluster Architecture7 skill atoms
control planenodesreconciliation modelAPI server, etcd, scheduler & controller-manager roleskubelet and container runtimedeclarative desired statenamespaces as a scoping boundary
2Workloads7 skill atoms
podsdeploymentsstatefulsetsjobsreplicaset ownership chainrolling update maxSurge/maxUnavailabledaemonsets & cronjobs
3Networking & Exposure7 skill atoms
servicesingressDNS inside the clusterClusterIP vs NodePort vs LoadBalancerendpoints & label selectorsingress controller vs Ingress resourceNetworkPolicy basics
4Config, Secrets & Storage7 skill atoms
configmapssecretsPV/PVC classesenv vs volume-mounted configbase64 is not encryptionStorageClass dynamic provisioningaccess modes & reclaim policy
5Security & Scheduling7 skill atoms
RBACprobesaffinitytaintsroles vs clusterroles & bindingsliveness, readiness & startup probesrequests/limits & QoS classes
6Break-Fix Gauntlet7 skill atoms
timed diagnosis drillspostmortem habitCrashLoopBackOff root-cause pathsImagePullBackOff & registry authPending pods from insufficient resourcesOOMKilled and limit tuningdescribe/events/logs -p workflow
Where it fits

CL-305 in the role journeys.

This course appears in 4 of our 45 role journeys. Here is what a learner takes immediately before and after it in each.

Platform / DevOps Engineer

Practitioner stage
CL-101CL-305CL-311

Site Reliability Engineer

Foundation stage
CL-102CL-305CL-101

AI Infrastructure Engineer

Practitioner stage
CL-304CL-305CL-311

Platform Engineer (IDP)

Practitioner stage
CL-318CL-305CL-312

Roles this course serves

The capability ladder

This course is authored to band B3.

Every course we run is written to one rung of the CASI ladder, so a plan can be assembled to take a team from where they are to where they need to be.

What do B1–B6 mean?The CASI Capability Ladder — click to expand

Every course targets a band on the CASI Capability Ladder — our six-band proficiency scale, anchored to open standards (O*NET, ESCO, NICE, NIST AI RMF, Bloom's). A band tells you how deep a course goes, and what evidence proves it.

What the learner can doTypical evidence
B1
AwareUnderstands concepts and vocabulary; uses tools with guidance
Knowledge checks
B2
FoundationPerforms standard tasks correctly in familiar contexts
Guided labs, autograded exercises
B3
PractitionerDelivers complete pieces of work independently
Scenario labs, proctored hands-on exams
B4
ProfessionalHandles production-grade complexity, trade-offs and failure modes
Break-fix drills, design defenses
B5
AdvancedEngineers systems end-to-end under constraints; leads others
Rubric-scored capstones, vivas
B6
ExpertSets direction; recognised authority across teams
Portfolio + panel evaluation

A note on B6. Courses in this catalog target B1–B5. B6 is not taught — it is recognised, through a portfolio and a panel, once someone is setting direction for others. Every journey here is built to land a learner at B5.

Next step

Run CL-305 for your team.

This course runs at several lengths depending on how deep you need to go and how much of it your people already have. Tell us who is being trained and we will scope it.

Add it to a training plan Talk to our team Check your team’s level free