containers: regroup and add Alpine images (31 MB)

containers/docker/develop-alpine/Dockerfile

+FROM alpine:3.3
+
+RUN \
+  apk add --update go git make gcc musl-dev         && \
+  git clone https://github.com/ethereum/go-ethereum && \
+  (cd go-ethereum && git checkout develop)          && \
+  (cd go-ethereum && make geth)                     && \
+  cp go-ethereum/build/bin/geth /geth               && \
+  apk del go git make gcc musl-dev                  && \
+  rm -rf /go-ethereum && rm -rf /var/cache/apk/*
+
+EXPOSE 8545
+EXPOSE 30303
+
+ENTRYPOINT ["/geth"]

containers/docker/master-alpine/Dockerfile

+FROM alpine:3.3
+
+RUN \
+  apk add --update go git make gcc musl-dev gmp-dev && \
+  git clone https://github.com/ethereum/go-ethereum && \
+  (cd go-ethereum && make geth)                     && \
+  cp go-ethereum/build/bin/geth /geth               && \
+  apk del go git make gcc musl-dev gmp-dev          && \
+  rm -rf /go-ethereum && rm -rf /var/cache/apk/*
+
+EXPOSE 8545
+EXPOSE 30303
+
+ENTRYPOINT ["/geth"]