first dockerfile

.gitconfig

@@ -1,2 +1,5 @@
 [safe]
 	directory = /home/coder
+[user]
+	name = Isaac Johnson
+	email = isaac.johnson@gmail.com

Dockerfile

@@ -0,0 +1,6 @@
+FROM perl:5
+WORKDIR /usr/src/app
+RUN cpanm HTTP::Server::Simple
+COPY server.pl .
+EXPOSE 8080
+CMD ["perl", "./server.pl"]

server.pl

@@ -38,5 +38,4 @@ sub resp_hello {
 }
 } 
 # start the server on port 8080
-my $pid = MyWebServer->new(8080)->background();
+MyWebServer->new(8080)->run();
-print "Use 'kill $pid' to stop server.\n";