Remove packages from registry Docker build

The Dockerfile for the registry itself should not contain any packages. Instead it should be empty and there are other distributions with packages, see elastic/package-storage#86. This removes the packages from the default Docker build.

Dockerfile

@@ -14,9 +14,6 @@ COPY ./ /home/package-registry
 WORKDIR /home/package-registry
 
 ENV GO111MODULE=on
-RUN go get -u github.com/magefile/mage
-# Prepare all the packages to be built
-RUN mage build
 
 # Build binary
 RUN go build .
@@ -26,7 +23,6 @@ RUN go build .
 RUN mkdir -p /registry/public # left for legacy purposes
 RUN mkdir -p /registry/packages/package-storage
 RUN mv package-registry /registry/
-RUN cp -r build/package-storage/packages/* /registry/packages/package-storage/
 RUN cp config.docker.yml /registry/config.yml
 
 # Change to new working directory

config.docker.yml

@@ -1,6 +1,6 @@
 public_dir: ./public
 package_paths:
-  - ./packages/package-storage
+  - ./packages
 
 cache_time.search: 10m
 cache_time.categories: 10m

testing/environments/local.yml

@@ -18,6 +18,8 @@ services:
   package-registry:
     build: ../..
     image: docker.elastic.co/package-registry/package-registry:master
+    volumes:
+      - ../../build/package-storage:/packages
     ports:
       - "127.0.0.1:8080:8080"