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Building Locally with Docker

I'm currently running everything via Docker with no tools intalled on my local machine (except Docker... 🐳).

This is just a reminder for me on how to install/upgrade dependencies within this workflow.

Build Custom Image

We need git and openssh in order to install some of our packges. The Node-Alpine images don't come with this pre-installed, so I'll just add another layer to add these packages.

Using the cool STDIN technique (no Dockerfile required!).

$ docker build -t npm-with-git -<<EOF
FROM node:12.12.0-alpine
RUN apk add --no-cache bash git openssh
EOF
  • I could probably use the current-alpine image because I don't think I'll get any version clashes (and I don't lock down engine versions either). But I'm using this for now.

Run Commands

$ MSYS_NO_PATHCONV=1 docker run -it --rm -v "$(pwd)":/app --workdir /app npm-with-git npm outdated
...
$ MSYS_NO_PATHCONV=1 docker run -it --rm -v "$(pwd)":/app --workdir /app -v /app/node_modules npm-with-git npm install
...
  • The MSYS_NO_PATHCONV=1 environment variable is present because I develop on Windows and Git Bash gets confused when trying to auto-convert / to Windows paths. Blergh.
  • Using a volume "trick" to force the node_modules folder to live in the container so that dependencies are built properly.