docker: Switch to multistage build, closes #66

etc/docker/defaults/start-inbucket.sh

@@ -2,6 +2,7 @@
 # start-inbucket.sh
 # description: start inbucket (runs within a docker container)
 
+INBUCKET_HOME="/opt/inbucket"
 CONF_SOURCE="$INBUCKET_HOME/defaults"
 CONF_TARGET="/config"
 

etc/docker/install.sh

@@ -1,48 +0,0 @@
-#!/bin/sh
-# install.sh
-# description: Build, test, and install Inbucket. Should be executed inside a Docker container.
-
-set -eo pipefail
-
-installdir="$INBUCKET_HOME"
-srcdir="$INBUCKET_SRC"
-bindir="$installdir/bin"
-defaultsdir="$installdir/defaults"
-contextdir="/con/context"
-
-echo "### Installing OS Build Dependencies"
-apk add --no-cache --virtual .build-deps git
-
-# Setup
-export GOBIN="$bindir"
-cd "$srcdir"
-builddate="$(date -Iseconds)"
-buildver="$(git describe --tags --always)"
-
-# Build
-go clean
-echo "### Fetching Dependencies"
-go get -t -v ./...
-
-echo "### Testing Inbucket"
-go test ./...
-
-echo "### Building Inbucket"
-go build -o inbucket -ldflags "-X 'main.version=$buildver' -X 'main.date=$builddate'" -v ./cmd/inbucket
-
-echo "### Installing Inbucket"
-set -x
-mkdir -p "$bindir"
-install inbucket "$bindir"
-mkdir -p "$contextdir"
-install etc/docker/defaults/start-inbucket.sh /
-cp -r ui "$installdir/"
-mkdir -p "$defaultsdir"
-cp etc/docker/defaults/greeting.html "$defaultsdir"
-set +x
-
-echo "### Removing OS Build Dependencies"
-apk del .build-deps
-
-echo "### Removing $GOPATH"
-rm -rf "$GOPATH"