Reduce number of layers and provide an Alpine variant

Dockerfile.build

@@ -1,58 +1,50 @@
 FROM golang:latest
-
-RUN go version
-RUN go get -v -u github.com/markbates/deplist/deplist
-
-RUN apt-get update
-RUN curl -sL https://deb.nodesource.com/setup_8.x | bash
-RUN apt-get install -y build-essential nodejs
-RUN apt-get install -y sqlite3 libsqlite3-dev
-RUN sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
-RUN wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | apt-key add -
-RUN apt-get install -y postgresql postgresql-contrib libpq-dev
-RUN apt-get install -y -q mysql-client
-RUN apt-get install -y vim
-
-RUN go get -u github.com/golang/dep/cmd/dep
-RUN go get -v -u github.com/gobuffalo/makr
-RUN go get -v -u github.com/gobuffalo/packr
-RUN go get -v -u github.com/gobuffalo/tags
-RUN go get -v -u github.com/gobuffalo/pop
-RUN go get -v -u github.com/gobuffalo/x/...
-RUN go get -v -u github.com/mattn/go-sqlite3
-RUN go get -v -u github.com/markbates/filetest
-RUN go get -v -u github.com/markbates/grift
-RUN go get -v -u github.com/markbates/inflect
-RUN go get -v -u github.com/markbates/refresh
-RUN go get -v -u github.com/markbates/willie
-RUN go get -v -u github.com/gorilla/sessions
-RUN go get -v -u golang.org/x/vgo
-RUN go get -u github.com/alecthomas/gometalinter
-RUN gometalinter --install
-
-RUN npm install -g --no-progress yarn
-RUN yarn config set yarn-offline-mirror /npm-packages-offline-cache
-RUN yarn config set yarn-offline-mirror-pruning true
-
+EXPOSE 3000
 ENV BP=$GOPATH/src/github.com/gobuffalo/buffalo
-
-RUN rm -rfv $BP
-RUN mkdir -p $BP
+RUN go version && go get -v -u github.com/markbates/deplist/deplist
+
+RUN curl -sL https://deb.nodesource.com/setup_8.x | bash \
+&& sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list' \
+&& wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | apt-key add - \
+&& apt-get update \
+&& apt-get install -y -q build-essential nodejs sqlite3 libsqlite3-dev postgresql postgresql-contrib libpq-dev mysql-client vim \
+&& rm -rf /var/lib/apt/lists/*
+
+
+RUN go get -u github.com/golang/dep/cmd/dep \
+&& go get -v -u github.com/gobuffalo/makr \
+&& go get -v -u github.com/gobuffalo/packr \
+&& go get -v -u github.com/gobuffalo/tags \
+&& go get -v -u github.com/gobuffalo/pop \
+&& go get -v -u github.com/gobuffalo/x/... \
+&& go get -v -u github.com/mattn/go-sqlite3 \
+&& go get -v -u github.com/markbates/filetest \
+&& go get -v -u github.com/markbates/grift \
+&& go get -v -u github.com/markbates/inflect \
+&& go get -v -u github.com/markbates/refresh \
+&& go get -v -u github.com/markbates/willie \
+&& go get -v -u github.com/gorilla/sessions \
+&& go get -v -u golang.org/x/vgo \
+&& go get -u github.com/alecthomas/gometalinter \
+&& gometalinter --install
+
+RUN npm install -g --no-progress yarn \
+&& yarn config set yarn-offline-mirror /npm-packages-offline-cache \
+&& yarn config set yarn-offline-mirror-pruning true
+
+
+RUN rm -rfv $BP && mkdir -p $BP
 WORKDIR $BP
 
 ADD . .
-RUN go get -tags "sqlite" -v -t github.com/gobuffalo/buffalo/...
-RUN make install
-
+RUN go get -tags "sqlite" -v -t github.com/gobuffalo/buffalo/... && make install
 
 # cache yarn packages to an offline mirror so they're faster to load. hopefully.
-RUN grep -v '{{' ./generators/assets/webpack/templates/package.json.tmpl > package.json
-RUN yarn install --no-progress
+RUN grep -v '{{' ./generators/assets/webpack/templates/package.json.tmpl > package.json \
+&& yarn install --no-progress
 
 RUN buffalo version
 
 WORKDIR $GOPATH/src
 
 RUN ls -la /npm-packages-offline-cache
-
-EXPOSE 3000

Dockerfile.slim.build

@@ -0,0 +1,46 @@
+FROM golang:alpine
+EXPOSE 3000
+ENV BP=$GOPATH/src/github.com/gobuffalo/buffalo
+RUN apk add --no-cache --upgrade apk-tools \
+&& apk add --no-cache bash curl openssl git build-base yarn nodejs postgresql libpq postgresql-contrib sqlite sqlite-dev mysql-client vim
+
+RUN go version && go get -v -u github.com/markbates/deplist/deplist
+
+
+RUN go get -u github.com/golang/dep/cmd/dep \
+&& go get -v -u github.com/gobuffalo/makr \
+&& go get -v -u github.com/gobuffalo/packr \
+&& go get -v -u github.com/gobuffalo/tags \
+&& go get -v -u github.com/gobuffalo/pop \
+&& go get -v -u github.com/gobuffalo/x/... \
+&& go get -v -u github.com/mattn/go-sqlite3 \
+&& go get -v -u github.com/markbates/filetest \
+&& go get -v -u github.com/markbates/grift \
+&& go get -v -u github.com/markbates/inflect \
+&& go get -v -u github.com/markbates/refresh \
+&& go get -v -u github.com/markbates/willie \
+&& go get -v -u github.com/gorilla/sessions \
+&& go get -v -u golang.org/x/vgo \
+&& go get -u github.com/alecthomas/gometalinter \
+&& gometalinter --install
+
+RUN npm install -g --no-progress yarn \
+&& yarn config set yarn-offline-mirror /npm-packages-offline-cache \
+&& yarn config set yarn-offline-mirror-pruning true
+
+
+RUN rm -rfv $BP && mkdir -p $BP
+WORKDIR $BP
+
+ADD . .
+RUN go get -tags "sqlite" -v -t github.com/gobuffalo/buffalo/... && make install
+
+# cache yarn packages to an offline mirror so they're faster to load. hopefully.
+RUN grep -v '{{' ./generators/assets/webpack/templates/package.json.tmpl > package.json \
+&& yarn install --no-progress
+
+RUN buffalo version
+
+WORKDIR $GOPATH/src
+
+RUN ls -la /npm-packages-offline-cache