/k8s-downward-golang-web

Primary LanguageGo

Summary

Golang http web server running by default on port 8080 that is intended for testing

Image is based on busybox:1.32.1-glibc, is about ~11Mb because it takes advantage of multi-stage building

Environment variables

  • PORT - listen port, defaults to 8080
  • APP_CONTEXT - base context path of app, defaults to '/'

Environment variables populated from Downward API

  • MY_NODE_NAME - name of k8s node
  • MY_POD_NAME - name of k8s pod
  • MY_POD_IP - k8s pod IP
  • MY_POD_SERVICE_ACCOUNT - service account of k8s pod

Prerequisites

  • make utility (sudo apt-get install make)

Makefile targets

  • docker-build (builds image)
  • docker-run-fg (runs container in foreground, ctrl-C to exit)
  • docker-run-bg (runs container in background)
  • k8s-apply (applies deployment to kubernetes cluster)
  • k8s-delete (removes deployment on kubernetes cluster)