kcjonson/greenhouse-controller

Home Controller

Setup

(optional) Install Posgres: brew install postgresql - Needed for psql CLI to work with DB locally

Starting the servers locally

start docker-compose up --build

rebuild a particular container docker-compose build --no-cache CONTAINER note: this won't install new npm dependencies

recreate all containers and start docker-compose up --force-recreate

Connecting to a started server

Its useful to connect to already running servers to run migrations that may have failed or manually install new node deps

1. Run docker ps to check the names of things
2. Run docker exec -it greenhouse-controller_api_1 /bin/bash (insert correct controller)

Expected Behavior of node_modules

• You should not have to have done a npm install on your local checkout in order to run docker-compose up
• If you have done a local npm install the installed modules will not be copied to the containers
• The node_modules folder in containers should be cached from build to build
• We have to manually copy the shared dependency(s) into containers since they run in isolation, hoisting will not work, and they're not valid packages for a npm install

Running Tests

Instead of just running up using run allows up to specify a command to the api server

docker-compose run api npm run test

docker-compose run - run api - the name of the container npm run test the command to run

Connecting to the DB

psql -h 127.0.0.1 -p 5432 -U greenhouse

display tables \dt

Docker Cleanup

kill all running containers with docker kill $(docker ps -q)

delete all stopped containers with docker rm -v $(docker ps -a -q)

delete all images with docker rmi $(docker images -q)

warning: this deletes databases! force delete all images: docker rmi -f $(docker images -q)

warning: this deletes databases! prune volumes: docker volume prune

nuke from orbit: docker system prune -a

nginx info

Config Errors

host not found in upstream

Solution: set fail_timeout=5s max_fails=5 to allow server to come up https://stackoverflow.com/questions/33639138/docker-networking-nginx-emerg-host-not-found-in-upstream

Resources

https://blog.codeship.com/using-docker-compose-for-nodejs-development/

https://medium.com/@nickpeleh/dockerizing-a-node-js-web-app-with-redis-and-postgresql-60ddc697b44

https://codeforgeek.com/2015/07/using-redis-to-handle-session-in-node-js/

https://www.codementor.io/mayowa.a/how-to-build-a-simple-session-based-authentication-system-with-nodejs-from-scratch-6vn67mcy3