K8s Networking — Reladraw template

K8s 网络流. Copy the source, paste into the official playground, done. No coordinates — every position is stated relative to something else.

Preview

Ingress Service Pod A Pod B NetworkPolicy restrict

Source (.reladraw)

node net "Ingress"
node svc "Service"  below net
node pod1 "Pod A"  below-left of svc
node pod2 "Pod B"  below-right of svc
node netpol "NetworkPolicy"  right of svc
edge net -> svc
edge svc -> pod1
edge svc -> pod2
edge netpol -> svc "restrict"

How to use

  1. Open the Reladraw playground
  2. Paste the source above — the diagram re-solves live
  3. Export SVG from the playground, or render locally: npx reladraw k8s-networking.reladraw -o out.svg

When to use this template

Ingress to service to pods, with a NetworkPolicy edge restricting the path.. Use it when debugging cluster traffic — the policy edge shows who is allowed where.

How to customize

  1. Add a step or node. Insert one line: node new_id 'New label' below anchor — placement is relative, so the solver re-flows the whole diagram instantly.
  2. Relabel an edge. Edit the text after the arrow: edge a -> b 'your label' — labels are the fastest way to carry rates, protocols or percentages.
  3. Change reading order. Swap a placement word: below to right of rotates a branch sideways without touching any other line.

FAQ

How do I draw this in Reladraw?

Declare each box with node, connect them with edge, and state one position per node relative to another. Paste the source from this page into the official playground and it renders immediately.

Can I use this template commercially?

Yes — the source is free to copy, modify and ship in docs, READMEs, books or client decks. No attribution required.

How do I export an image?

Render in the playground and export SVG, or run it locally: npx reladraw file.reladraw -o out.svg for CI-friendly builds.

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