From c34b32647add24b70725d72991467a1efd5c7579 Mon Sep 17 00:00:00 2001
From: Robert Swain <rob@matrix.org>
Date: Sun, 2 Jul 2017 21:36:17 +0200
Subject: [PATCH 1/2] Add Dockerfile and docker image build script

---
 Dockerfile            | 10 ++++++++++
 build-docker-image.sh | 12 ++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 Dockerfile
 create mode 100755 build-docker-image.sh

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..e45e881
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM alpine:3.6
+
+ENV BIND_ADDRESS=:4050 DATABASE_TYPE=sqlite3 DATABASE_URL=/data/go-neb.db?_busy_timeout=5000
+
+COPY bin/go-neb /go-neb
+
+VOLUME /data
+EXPOSE 4050
+
+ENTRYPOINT ["/go-neb"]
diff --git a/build-docker-image.sh b/build-docker-image.sh
new file mode 100755
index 0000000..d5a3495
--- /dev/null
+++ b/build-docker-image.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -e
+
+docker run \
+    --rm \
+    -v "$PWD":/usr/src/myapp \
+    -w /usr/src/myapp \
+    golang:1.8-alpine \
+    sh -c 'apk add --no-cache git gcc musl-dev && go get -u github.com/constabulary/gb/... && gb build -f github.com/matrix-org/go-neb'
+
+docker build -t ${IMAGE_PREFIX}go-neb:latest .

From 2d581581bc0fbb2dc3f6a51240554624937e58d5 Mon Sep 17 00:00:00 2001
From: Robert Swain <rob@matrix.org>
Date: Sun, 2 Jul 2017 21:43:09 +0200
Subject: [PATCH 2/2] README.md: Add notes on docker image

---
 README.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/README.md b/README.md
index 18e6ca8..47e0ba3 100644
--- a/README.md
+++ b/README.md
@@ -222,3 +222,16 @@ GOPATH=$GOPATH:$(pwd) godoc -v -http=localhost:6060 &
 # Open up the documentation for go-neb in a browser.
 sensible-browser http://localhost:6060/pkg/github.com/matrix-org/go-neb
 ```
+
+## Docker image
+
+There is a `Dockerfile` in the root of the repository and a `build-docker-image.sh` script that uses an alpine-based golang container to build `go-neb` (note that this will overwrite host-built binaries in `pkg/` and `bin/`) and then builds the docker image using that binary.
+
+The image sets the following environment variables:
+```
+BIND_ADDRESS=:4050
+DATABASE_TYPE=sqlite3
+DATABASE_URL=/data/go-neb.db?_busy_timeout=5000
+```
+
+The image exposes port `4050` and a volume at `/data`. The `BASE_URL` environment variable needs to be set, a volume should be mounted at `/data` and port `4050` should be appropriately mapped as desired.