Good enough Kubernetes namespace visualization tool.
No provisioning to a cluster required, only Kubernetes API is scrapped.
sudo apt-get install graphviz
pip install kubesurveyor
Export path to a custom certification authority, if you use one for your Kubernetes cluster API
export REQUESTS_CA_BUNDLE=/etc/ssl/certs/ca-certificates.crt
Alternatively, ignore K8S API certificate errors using --insecure or -k
kubesurveyor <namespace> --insecure
Show <namespace> namespace as a dot language graph, using currently active K8S config context
kubesurveyor <namespace>
Specify context to be used, if there are multiple in the K8S config file
kubesurveyor <namespace> --context <context>
Dump crawled namespace data to a YAML format for later processing
kubesurveyor <namespace> --context <context> --save > namespace.yaml
Load from YAML file, show as dot language graph
cat namespace.yaml | kubesurveyor <namespace> --load
Load from YAML file and render as png visualization to a current working directory
cat namespace.yaml | kubesurveyor <namespace> --load --out png
If you want to generate architecture image from dot definition by hand, use dot directly
dot -Tpng k8s.dot > k8s.png
Limitations:
- unconnected pods, services are not shown
- could have problems with deployments created by Tiller
- number of replicas is not tracked