Added some comments to Dockerfiles

Author: lucasvanlierop

frankdejonge-rust/Dockerfile

@@ -2,15 +2,22 @@ FROM ubuntu:15.10
 MAINTAINER [email protected]
 ENV LANG C.UTF-8
 
+# Make sure add-apt-repository is installed
 RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive apt-get -y install software-properties-common
 
+# Install Rust
 RUN yes | add-apt-repository ppa:hansjorg/rust
 RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y rust-nightly
 
+# Create working dir
 RUN mkdir -p /var/app
 COPY . /var/app
 WORKDIR /var/app
+
+# Compile raffler
 RUN /var/app/compile.sh
+
+# Run raffler
 CMD ["/var/app/run.sh"]

lucasvanlierop-cobol/Dockerfile

@@ -1,10 +1,18 @@
 FROM ubuntu:15.10
 MAINTAINER [email protected]
 ENV LANG C.UTF-8
+
+# Install Cobol
 RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y open-cobol
+
+# Create working dir
 RUN mkdir -p /var/app
 COPY . /var/app
 WORKDIR /var/app
+
+# Compile raffler
 RUN /var/app/compile.sh
+
+# Run raffler
 CMD ["/var/app/run.sh"]

sgoettschkes-haskell/Dockerfile

@@ -1,9 +1,15 @@
 FROM ubuntu:15.10
 MAINTAINER [email protected]
 ENV LANG C.UTF-8
+
+# Install Haskell
 RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y haskell-platform
+
+# Create working dir
 RUN mkdir -p /var/app
 COPY . /var/app
 WORKDIR /var/app
+
+# Run raffler
 CMD ["/var/app/run.sh"]