mks-01 / cheatsheet-docs

Cheat sheet

Homebrew

$ brew install --cask file

$ brew update && brew upgrade

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Docker

Container?

A container is simply another process on your machine that has been isolated from all other processes on the host machine.

Run

$ docker run -d -p 80:80 docker/docker-name

• -d - run the container in detached mode (in the background)
• -p 80:80 - map port 80 of the host to port 80 in the container
• docker/docker-name - the image to use

Shorthand

$ docker run -dp 80:80 docker/docker-name

Building the App's Container Image

1. Create a file named Dockerfile

FROM node:12-alpine
WORKDIR /app
COPY . .
RUN yarn install --production
CMD ["node", "src/index.js"]

2. Build the container image using the docker build command.

$ docker build -t docker-name .

The -t flag tags image. The . at the end of the docker build command tells that Docker should look for the Dockerfile in the current directory.

Starting an App Container

$ docker run -dp 3000:3000 docker-name

Removing a container

$ docker ps  #get id of container

$ docker stop <the-container-id> # Swap out <the-container-id> with the ID from docker ps

$ docker rm <the-container-id>

Shorthand

$ docker rm -f <the-container-id>

Create a Volume

$ docker volume create volume-name
#mount volume

Inspect a Volume

$ docker volume inspect volume-name

Check Logs

$ docker logs -f <container-id>

NVM

#generate a .nvmrc file
$ node -v > .nvmrc

$ nvm ls  #check node version installed on machine

$ nvm install --lts

$ nvm install node

$ nvm use node_version

$ nvm uninstall node_version

Git

#remove .env
$ git rm .env --cached
$ git commit -m "Stopped tracking .env File"