docker-node-sass/README.md

# docker-node-sass

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Docker image for node-sass, based on this blog post:
http://johnbokma.com/blog/2021/06/17/a-docker-image-for-sass.html

## Run with Docker

`docker run -v "$(pwd):/data" 3wordchant/node-sass main.scss`

`-v ...` mounts the current directory into the `/data` directory, which is where
`sass` will look for files. If your SCSS files are elsewhere, you can change or
add to `"$(pwd)"`

Everything after `3wordchant/node-sass` is an argument to the Sass compiler. See
all available options by running `... 3wordchant/node-sass --help`.

In particular, the `-w` "watch" option might be helpful, e.g.:

`docker run -v "$(pwd):/data" 3wordchant/node-sass -w main.scss main.css`

will watch for changes to `main.scss` or its dependencies, and compile them to
`main.css`.

## Run with docker-compose / Docker Swarm-mode

```
services:
  sass:
    image: 3wordchant/node-sass
    volumes:
      - "../path/to/assets:/data"
    command: ["-w", "scss/main.scss", "css/main.css"]
```

You can also then run one-off commands with `docker-compose exec sass ...`.