From e0d79a26c0791f1fd96fcd4933c1ac5a2cf32943 Mon Sep 17 00:00:00 2001
From: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Date: Mon, 16 Nov 2020 15:03:18 +0100
Subject: [PATCH] feat: create docker dev environment

---
 .env               |  2 ++
 .gitignore         |  1 +
 Dockerfile-dev     | 40 ++++++++++++++++++++++++++++++++++++++++
 docker-compose.yml | 13 +++++++++++++
 4 files changed, 56 insertions(+)
 create mode 100644 .env
 create mode 100644 Dockerfile-dev
 create mode 100644 docker-compose.yml

diff --git a/.env b/.env
new file mode 100644
index 00000000..1a63eeff
--- /dev/null
+++ b/.env
@@ -0,0 +1,2 @@
+USER_ID=1000
+GROUP_ID=1000
diff --git a/.gitignore b/.gitignore
index 53bbb745..6de43d68 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .DS_Store
 .bundle
+.bash_history
 log
 tmp
 public/assets
diff --git a/Dockerfile-dev b/Dockerfile-dev
new file mode 100644
index 00000000..54f2f2e2
--- /dev/null
+++ b/Dockerfile-dev
@@ -0,0 +1,40 @@
+FROM ruby:2.6.5
+
+ENV LANG=C.UTF-8
+ENV ENABLE_SERVICE_WORKER=true
+
+ARG USER_ID
+ARG GROUP_ID
+
+RUN apt-get update && \
+    apt-get -y install git nodejs libcurl4 && \
+    gem install bundler
+
+# Create the dev user and set up a home dir
+RUN if [ ${USER_ID:-0} -ne 0 ] && [ ${GROUP_ID:-0} -ne 0 ]; then \
+    groupadd -g ${GROUP_ID} devuser &&\
+    useradd -l -u ${USER_ID} -g devuser devuser &&\
+    install -d -m 0755 -o devuser -g devuser /home/devuser &&\
+    chown --changes --silent --no-dereference --recursive \
+          --from=33:33 ${USER_ID}:${GROUP_ID} \
+        /home/devuser \
+    ;fi
+
+# Host directories cannot be mounted by Dockerfiles so we have to use
+# a temporary directory to hold the lock files while the gems are installed.
+WORKDIR /devdocs/
+
+COPY Gemfile Gemfile.lock Rakefile /devdocs/
+
+RUN bundle install && rm -rf /devdocs/
+
+WORKDIR /home/devuser/
+
+EXPOSE 9292
+
+# This entrypoint lets you
+# docker-compose run --rm --service-ports devdocs
+# straight into a bash shell
+ENTRYPOINT [ "/bin/bash" ]
+
+USER devuser
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 00000000..a9e07e11
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,13 @@
+version: '3.7'
+services:
+  devdocs:
+    build:
+      context: .
+      dockerfile: Dockerfile-dev
+      args:
+        USER_ID: ${USER_ID:-0}
+        GROUP_ID: ${GROUP_ID:-0}
+    volumes:
+      - ${PWD}:/home/devuser
+    ports:
+      - "9292:9292"