Add Dockerfile for building (#19)

* Add dockerfile for building

* Update Dockerfile and README

Author: evq

.dockerignore

@@ -0,0 +1 @@
+src

.gitignore

@@ -3,3 +3,4 @@ src
 .gclient_entries
 npm-debug.log
 .gclient
+.sccache

Dockerfile

@@ -0,0 +1,33 @@
+FROM node:8-stretch
+
+RUN apt-get update && apt-get install -y \
+  bison \
+  build-essential \
+  curl \
+  g++-multilib \
+  gcc-multilib \
+  git \
+  gperf \
+  libgnome-keyring-dev \
+  libnotify-dev \
+  libssl-dev \
+  ninja-build \
+  python-pip \
+  sudo
+
+RUN npm install -g [email protected]
+RUN pip install Jinja2==2.8.1
+
+RUN curl -sSf https://static.rust-lang.org/rustup.sh | sh
+RUN cargo install sccache
+ENV PATH="/root/.cargo/bin:${PATH}"
+RUN echo "sccache = /root/.cargo/bin/sccache" > /root/.npmrc
+
+# BLB source code. Mount ./browser-laptop-bootstrap from the host to here.
+WORKDIR /src
+VOLUME /src
+
+# Build cache. Mount ./sccache from the host to here.
+VOLUME /root/.cache/sccache
+
+CMD bash

README.md

@@ -9,3 +9,27 @@ Everything you need to compile [Muon](https://github.com/brave/muon) and run [Br
 - applies [patches we have](https://github.com/brave/muon/tree/master/patches) for 3rd party code (Chromium, node)
 
 Please [check out our wiki](https://github.com/brave/browser-laptop-bootstrap/wiki) for build instructions and other information.
+
+## Running in Docker
+
+You can compile muon for Linux using a Docker container.
+
+First clone this repo and enter the repo directory:
+```
+git clone https://github.com/brave/browser-laptop-bootstrap.git
+cd browser-laptop-bootstrap
+```
+
+Start Docker then build the image from the Dockerfile:
+```
+docker build -t blb .
+```
+
+And run it, mounting the appropriate directories:
+```
+docker run --rm -it -v $(pwd):/src -v $(pwd)/.sccache:/root/.cache/sccache blb
+```
+
+Dependencies are included in the image so there's no need to run `./src/build/install-build-deps.sh`.
+
+Now you can proceed with build scripts such as `npm run init`, `npm run sync -- --all` and `npm run build -- --debug_build=true --official_build=false`. See `./src/out` for the results.