grebnesorbocaj/gonodeorchestr8

orchestration for goNodeNetwork

orchestration for goNodeNetwork

To run this:

• Make sure that your docker pulls from dockerhub...idk how to ensure that.
• Clone this repo and run make init make up to start the app, run make end make down to teardown the app
• If you have kubernetes, kind, and helm installed:
  • make install to startup pods and service
  • make reveal to expose the service (and app) at localhost:6060
  • make uninstall to teardown pod and service

Send a GET Request

• Send a request to http://localhost:6060/monkeys
• This will contact goDocker container which will return "Hi there, I love monkeys! and hello boy, 3:44PM" (or whatever current time is)
• The Go container will contact the nodeDocker container which will add logs with the time in src/log/access.log
  • view the log by entering the container with docker exec -it nodeDocker bash and navigate to the log

Comments

• Made some changes to each server's docker image to make it smaller
  • nodeDocker now uses node:alpine base over node:latest
    • original: >1GB using node:latest
    • current: ~220MB using node:alpine
  • goDocker now uses multistage docker with final image just being the server as binary in alpine
    • original: 700MB -> golang:onbuild
    • current: 12MB -> golang:alpine to build binary in stage 1, copy binary into alpine base stage 2
• Added docker-compose which can be implemented with make up and torn down with make down
• Working on running this in kubernetes
  • Done:
    • Deployment.yaml for JUST the node app and go app
    • Service.yaml for JUST the node app and go app
    • Contact the app via kubectl proxy
    • Can I contact the app outside of kubectl proxy?
      • kubectl port-forward svc/go-node-kube 6060:80
      • This will forward the service to be exposed at localhost:6060
    • Modified GoApp so that it checks the HOST env variable to determine target URL.
      • localhost nodeapp in Kubernetes
        • Moved Golang container and NodeJS container into separate pods with corresponding services
      • nodedocker in Docker-Compose

Links

Go App

• GitHub: https://github.com/grebnesorbocaj/goDocker
• DockerHub: https://hub.docker.com/r/diakou/go-docker

Node App

• Github: https://github.com/grebnesorbocaj/nodeDocker
• DockerHub: https://hub.docker.com/r/diakou/node-docker