2-stage docker dev image build

fix https://github.com/chrislusf/seaweedfs/issues/1047

docker/Dockerfile.go_build

@@ -1,9 +1,15 @@
-FROM frolvlad/alpine-glibc
+FROM frolvlad/alpine-glibc as builder
 RUN apk add git go g++
 RUN mkdir -p /go/src/github.com/chrislusf/
 RUN git clone https://github.com/chrislusf/seaweedfs /go/src/github.com/chrislusf/seaweedfs
 RUN cd /go/src/github.com/chrislusf/seaweedfs/weed && go install
-RUN cp /root/go/bin/weed /usr/bin/
+
+FROM alpine AS final
+LABEL author="Chris Lu"
+COPY --from=builder /root/go/bin/weed /usr/bin/
+RUN mkdir -p /etc/seaweedfs
+COPY --from=builder /go/src/github.com/chrislusf/seaweedfs/docker/filer.toml /etc/seaweedfs/filer.toml
+COPY --from=builder /go/src/github.com/chrislusf/seaweedfs/docker/entrypoint.sh /entrypoint.sh
 
 # volume server gprc port
 EXPOSE 18080
@@ -24,9 +30,6 @@ RUN mkdir -p /data/filerldb2
 
 VOLUME /data
 
-RUN mkdir -p /etc/seaweedfs
-RUN cp /go/src/github.com/chrislusf/seaweedfs/docker/filer.toml /etc/seaweedfs/filer.toml
-RUN cp /go/src/github.com/chrislusf/seaweedfs/docker/entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
 
 ENTRYPOINT ["/entrypoint.sh"]

docker/seaweedfs-dev-compose.yml

@@ -0,0 +1,35 @@
+version: '2'
+
+services:
+  master:
+    image: chrislusf/seaweedfs:dev # use a remote dev image
+    ports:
+    - 9333:9333
+    - 19333:19333
+    command: "master -ip=master"
+  volume:
+    image: chrislusf/seaweedfs:dev # use a remote dev image
+    ports:
+    - 8080:8080
+    - 18080:18080
+    command: '-v=2 volume -max=5 -mserver="master:9333" -port=8080 -ip=volume'
+    depends_on:
+    - master
+  filer:
+    image: chrislusf/seaweedfs:dev # use a remote dev image
+    ports:
+    - 8888:8888
+    - 18888:18888
+    command: '-v=4 filer -master="master:9333"'
+    depends_on:
+    - master
+    - volume
+  s3:
+    image: chrislusf/seaweedfs:dev # use a remote dev image
+    ports:
+    - 8333:8333
+    command: '-v=4 s3 -filer="filer:8888"'
+    depends_on:
+    - master
+    - volume
+    - filer