Build docker dev env based on Linux alpine

Dockerfile

@@ -1,53 +1,33 @@
-FROM ubuntu:16.10
+FROM alpine:3.5
 
-# Install dependencies
-RUN apt-get update -y && \
-    apt-get install -y openssl \
-                       python-pip \
-                       python-imaging \
-                       python-jinja2 \
-                       python-lxml \
-                       libxml2-dev \
-                       libxslt1-dev \
-                       python-pgpdump \
-                       python-cryptography \
-                       spambayes \
-                       tor
-
-# Add mailpile code (required for initial setup, not for develpoment)
-ADD . /Mailpile
-
-# Create data dir
-# This will be overriden by a volume hosted by the docker host (your dev machine)
-RUN mkdir /mailpile-data
-
-# Create mailpile user and group.
-RUN groupadd -r mailpile && \
-    useradd -r -d /mailpile-data -g mailpile mailpile
-
-# Workaround: Setting mailpile users uid to 1000 to have write permissions
-# from the docker host the to the shared volumes /Mailpile and /mailpile-data.
-# Mounted volumes seem to be configured w/ uid/guid = 1000.
-# Learn more here:
-# - https://github.com/docker/docker/issues/7198
-# - https://denibertovic.com/posts/handling-permissions-with-docker-volumes/
-RUN usermod -u 1000 mailpile
-
-# Fix permissions for dirs (w/o they would only be accessible for root)
-RUN chown -R mailpile:mailpile /Mailpile
-RUN chown -R mailpile:mailpile /mailpile-data
-
-# Set /Mailpile as root dir for further RUN cmds
 WORKDIR /Mailpile
 
-RUN pip install --upgrade pip
-RUN pip install -r requirements-dev.txt
-
-# Run as mailpile user
-USER mailpile
-
-# Initialize mailpile
-RUN ./mp setup
+# Create users and groups
+RUN addgroup -S mailpile && adduser -S -h /mailpile-data -G mailpile mailpile
 
-CMD ["./mp", "--www=0.0.0.0:33411", "--wait"]
+# Install dependencies
+RUN apk --no-cache add \
+  ca-certificates \
+  openssl \
+  gnupg1 \
+  py-pip \
+  py-imaging \
+  py-jinja2 \
+  py-lxml \
+  py-lockfile \
+  py-pillow \
+  py-pbr \
+  py-cryptography \
+  su-exec
+
+ADD requirements.txt /Mailpile/requirements.txt
+RUN pip install -r requirements.txt
+
+# Entrypoint
+ADD packages/docker/entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ./mp --www=0.0.0.0:33411 --wait
 EXPOSE 33411
+
+# Add code
+ADD . /Mailpile

Dockerfile.dev

@@ -0,0 +1,22 @@
+FROM mailpile
+
+# Install C compiler for python deps w/ native extensions
+RUN apk --no-cache add \
+  gcc \
+  libc-dev \
+  python-dev \
+  shadow
+
+# Workaround: Setting mailpile users uid to 1000 to have write permissions
+# from the docker host the to the shared volumes /Mailpile and /mailpile-data.
+# Mounted volumes seem to be configured w/ uid/guid = 1000.
+# Learn more here:
+# - https://github.com/docker/docker/issues/7198
+# - https://denibertovic.com/posts/handling-permissions-with-docker-volumes/
+RUN usermod -u 1000 mailpile
+
+RUN pip install -r requirements-dev.txt
+
+RUN chmod +x /entrypoint.sh
+
+CMD ["./mp", "--www=0.0.0.0:33411", "--wait"]

docker-compose.dev.yml

@@ -0,0 +1,14 @@
+version: '3.0'
+services:
+  mailpile_dev:
+    container_name: mailpile_dev
+    build:
+      context: .
+      dockerfile: Dockerfile.dev
+    image: mailpile_dev
+    volumes:
+      - .:/Mailpile
+      - .dev-mailpile-data:/mailpile-data:rw
+    ports:
+      - 33411:33411
+

docker-compose.yml

@@ -1,8 +1,9 @@
 version: '3.0'
 services:
   mailpile:
-    container_name: mailpile_dev
+    container_name: mailpile
     build: .
+    image: mailpile
     volumes:
       - .:/Mailpile
       - .dev-mailpile-data:/mailpile-data

packages/docker/entrypoint.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+chown mailpile: /mailpile-data/ -R
+
+su-exec mailpile "$@"