Showcase – The Kubernetes Cluster DIY

Before delving into the infinity of Kubernetes, here is a quick showcase:

Illustration eines Netzwerks
Hetzner

Role

Description/Duties

  • Servers/Virtualization

  • Storage

    • Cluster Volumes

  • Networking

    • Load Balancing

Role

Description/Duties

  • Networking

    • DNS

  • Storage

    • Backups

    • Terraform State

Role

Terraform Config with couple of extras

Description/Duties

  • Cluster Config

    • Nodes

    • Load Balancer

    • Control Plane

    • Firewall

    • Traefik

  • Maintainance

    • Node Auto Update

  • And more

Role

Checks cluster state, hence the name

Description/Duties

    • Alerting

    • Monitoring

    • Log/Metric Aggregation

    • Visualization

    • Very ressource intensive

     

Role

Provides all other necessary services

Description/Duties

Role

Actual services that are to be provided

Description/Duties

  • Vaultwarden

  • Gitlab Runner

  • :stuck_out_tongue_closed_eyes:

    • hopefully more in the future

Butler

Velero creates backups of all namespaces with most of the subelements like PVCs.

Trivy checks/logs every change.

Watchdog

Exposed Services

Payload

Services

  • Vaultwarden

    • Secret Manager

  • Gitlab Runner

    • only accessible via gitlab ci

All chapters of the series:

Picture of Alptuğ Dingil

Alptuğ Dingil

Alptuğ joined Inspired in 2022 as a software engineer. Besides his customer projects he's always looking for a new challenge. So lately he got engaged with Kubernetes and the configuration of a DIY cluste and got certified as a Google professional cloud architect.

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