improve dev workflow

(cherry picked from commit 50a08a2b66)

.gitignore

@@ -1,4 +1,5 @@
 .idea/
+.vscode/
 .vagrant/
 *.tar.*
 MakeFile.in

Dockerfile

@@ -1,8 +1,5 @@
 FROM debian:stretch-slim
 
-COPY . /srv
-WORKDIR /srv
-
 RUN apt-get update \
     && apt-get install --no-install-recommends -y \
         build-essential \
@@ -13,19 +10,27 @@ RUN apt-get update \
         libev-dev \
         libjemalloc-dev \
         libmysql++-dev \
-        pkg-config \
-    && mkdir build \
+        pkg-config
+
+COPY . /srv
+WORKDIR /srv
+
+RUN mkdir build \
     && cd build \
     && cmake .. \
     && make \
-    && apt-get purge -y \
-        build-essential \
-        cmake \    
-        pkg-config \
-    && apt-get autoremove -y \
-    && apt-get clean -y \
-    && rm -rf /var/lib/apt/lists/* \
     && mv /srv/build/ocelot /srv/ocelot \
     && mv /srv/ocelot.conf.dist /srv/ocelot.conf
 
-CMD ["/srv/ocelot"]
+RUN apt-get purge -y \
+        build-essential \
+        cmake \
+        pkg-config \
+    && apt-get autoremove -y \
+    && apt-get clean -y \
+    && rm -rf /var/lib/apt/lists/*
+
+# default listen_port value in ocelot.conf
+EXPOSE 34000
+
+CMD ["/srv/ocelot"]

README.md

@@ -35,6 +35,13 @@ make
 
 The [Gazelle installation guides](https://github.com/WhatCD/Gazelle/wiki/Gazelle-installation) include instructions for installing Ocelot as a part of the Gazelle project.
 
+### Docker
+
+```bash
+docker build . -t ocelot
+docker run -v $(pwd)/ocelot.conf:/srv/ocelot.conf ocelot
+```
+
 ### Standalone Installation
 
 * Create the following tables according to the [Gazelle database schema](https://raw.githubusercontent.com/WhatCD/Gazelle/master/gazelle.sql):