[issue-15] reasonably support older linux distributions

Author: JustinVenus

Dockerfile-centos

@@ -0,0 +1,27 @@
+FROM alexcrichton/rust-slave-dist:2015-10-20b
+
+USER root
+ENV RUST_VERSION 1.16.0
+
+RUN mkdir -p /rust/app && \
+    unlink /rustroot/lib64/libgcc_s.so && \
+    rm /rustroot/lib64/libgcc_s.so.1 && \
+    ln -sf /lib64/libgcc_s.so.1 /lib64/libgcc_s.so && \
+    curl -sO https://static.rust-lang.org/dist/rust-$RUST_VERSION-x86_64-unknown-linux-gnu.tar.gz && \
+    tar -xzf rust-$RUST_VERSION-x86_64-unknown-linux-gnu.tar.gz && \
+    ./rust-$RUST_VERSION-x86_64-unknown-linux-gnu/install.sh --without=rust-docs && \
+    rm -rf \
+    rust-$RUST_VERSION-x86_64-unknown-linux-gnu \
+    rust-$RUST_VERSION-x86_64-unknown-linux-gnu.tar.gz \
+    /var/lib/apt/lists/* \
+    /tmp/* \
+    /var/tmp/*
+WORKDIR /rust/app
+
+ENV TARGET=x86_64-unknown-linux-gnu
+
+COPY . /rust/app
+RUN cargo build --release --target=$TARGET
+RUN cp ./target/$TARGET/release/linkerd-tcp /usr/local/bin
+
+ENTRYPOINT ["/usr/local/bin/linkerd-tcp"]