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Helm Chart Management

⬢ NIVÅ 2Verktyg
Hög
Lönepåverkan
3 månader
Tid att lära sig
Medel
Svårighetsgrad
3
Karriärer
I korthet

Helm is the package manager for Kubernetes. Charts are reusable templates for deploying applications. Used by 90% of Kubernetes deployments. Mastery takes 5-7 weeks. Senior practitioners earn 30-40% premium because they own application deployment infrastructure. Companies deploying 100+ microservices on Kubernetes need senior Helm expertise. Skill is table stakes for platform engineering and DevOps.

Vad är Helm Chart Management

Helm is the package manager for Kubernetes. Charts are reusable templates for deploying applications. A chart includes: Kubernetes manifests (YAML), templates with variables, default values, and dependency declarations. Instead of managing 50 YAML files per application, engineers package them into a single Helm chart. Deploy with one command: helm install myrelease mychart. Easy versioning, rollback, and environment-specific overrides.

🔧 VERKTYG & EKOSYSTEM
Helm CLIHelm ChartsChart RepositoriesKustomizeArgoCDHelm HooksTemplating EnginePackage ManagementRelease ManagementDependency Management

💰 Lön per region

OmrådeNybörjareMidErfaren
USA$90k$150k$230k
UK£55k£92k£140k
EU€60k€100k€150k
CANADAC$95kC$160kC$245k

🎯 Karriärer som använder Helm Chart Management

Mobile Developer
Platform Engineer
Qa Test Engineer

❓ Vanliga frågor

What's the difference between Helm and Kustomize?
Helm uses templating (Go templates, variables, loops). Kustomize uses overlays (layers of configuration). Helm is more powerful but complex. Kustomize is simpler but less flexible. Many teams use both: Helm for packaging, Kustomize for environment-specific overrides.
How do I version my applications with Helm?
Charts have versions (appVersion = app version, chart version = chart version). Helm releases track deployments: helm list shows all releases. Deploy version 1.0 to prod, 2.0 to staging. Easy rollback: helm rollback myrelease 1.
Can I share Helm charts across teams?
Yes. Create a chart repository (Helm Hub, Artifactory, GitHub Pages). Teams add repo to Helm config, then helm install chartrepo/mychart. Central charts reduce duplication.
How do I handle secrets in Helm?
Helm supports Secret types. Don't put secrets in values.yaml. Instead: use sealed-secrets, external-secrets operator, or Vault integration. Store secret references in values, actual secrets sourced at deploy time.
What are Helm hooks and when do I use them?
Hooks run at specific lifecycle points: pre-install, post-install, pre-upgrade, post-upgrade. Use for migrations (pre-upgrade), backups (pre-delete), or health checks. Example: run database migration before upgrading app.
How do I test Helm charts before deploying?
Use helm lint (syntax check), helm template (render templates), helm test (run test pods). Also: helm dry-run (show what would deploy without applying). Test in dev first.

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