azohra / periscope-proxy

Periscope Proxy

What is this?

Dynamic, on-demand docker-as-a service on any compatible K8S cluster with istio.

This is the proxy which can be used in subsitution for localhost docker. It is meant to be used in conjunction with https://github.com/azohra/periscope/. The proxy's job is to simply:

• negotiate with your cluster to spin up images of your choice
• tags local traffic with unique X-State-ID header that points to:
  • Service with exactly one Pod (with 1 or more containers)
• forwards all local traffic on [PORT] to cluster

Use Cases:

• ephemeral tasks where a docker image is needed but your vm (docker-in-docker) does not support nested virtualization (therefore no docker-in-docker).

Requirements

• K8S 1.12+
• Istio
• GCR

Instructions

To Get

go get github.com/azohra/periscope-proxy/...

To Install

go install ./...

To Run

periscope-proxy port=[PORT] addr=[ADDR]

Todo

• Makefile & install bin on go get (be better™)
• 2-way websocket between periscope and periscope-proxy
  • Graceful k8s SIGTERM
  • Real-time state
  • Support websocket traffic
  • HTTPS + WSS traffic with istio
• Helm chart

Made with ❤️ in Toronto, Canada