Modify testrun.sh for running inside docker

Dockerfile

@@ -21,7 +21,7 @@ ENV LD_LIBRARY_PATH "/usr/local/lib"
 # Install DGraph and update dependencies to right versions.
 RUN go get -v github.com/robfig/glock && \
 	go get -v github.com/dgraph-io/dgraph/... && \
-	glock sync github.com/dgraph-io/dgraph && echo "v0.2.0"
+	glock sync github.com/dgraph-io/dgraph && echo "v0.2.2"
 
 # Run some tests, don't build an image if we're failing tests.
 RUN go test github.com/dgraph-io/dgraph/...

server/testrun.sh

-go build . && ./server --instanceIdx 0 --mutations ~/dgraph/m0 --port "8080" --postings ~/dgraph/p0 --workers ":12345,:12346,:12347" --uids ~/dgraph/uasync.final --workerport ":12345" &
-go build . && ./server --instanceIdx 1 --mutations ~/dgraph/m1 --port "8081" --postings ~/dgraph/p1 --workers ":12345,:12346,:12347" --workerport ":12346" &
-go build . && ./server --instanceIdx 2 --mutations ~/dgraph/m2 --port "8082" --postings ~/dgraph/p2 --workers ":12345,:12346,:12347" --workerport ":12347" &
+dir="/dgraph"
+go build . && ./server --instanceIdx 0 --mutations $dir/m0 --port "8080" --postings $dir/p0 --workers ":12345,:12346,:12347" --uids $dir/uasync.final --workerport ":12345" &
+go build . && ./server --instanceIdx 1 --mutations $dir/m1 --port "8081" --postings $dir/p1 --workers ":12345,:12346,:12347" --workerport ":12346" &
+go build . && ./server --instanceIdx 2 --mutations $dir/m2 --port "8082" --postings $dir/p2 --workers ":12345,:12346,:12347" --workerport ":12347" &