Added build script for centos7.2

Summary:
Tested build with clean VirtualBox VM using bento/centos-7.2 image
Closes facebook#131

Reviewed By: spalamarchuk

Differential Revision: D3462036

Pulled By: andreazevedo

fbshipit-source-id: 2ece3cefb936e7af106ff03f36b936f094a2d1d0

mcrouter/scripts/install_centos_7.2.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+set -ex
+
+[ -n "$1" ] || ( echo "Install dir missing"; exit 1 )
+
+sudo yum install -y epel-release
+
+sudo yum install -y \
+    autoconf \
+    binutils-devel \
+    bison \
+    boost-devel \
+    double-conversion-devel \
+    flex \
+    gcc-c++ \
+    gcc \
+    git \
+    gflags-devel \
+    glog-devel \
+    jemalloc-devel \
+    openssl-devel \
+    libtool \
+    libevent-devel \
+    make \
+    python-devel 
+
+cd "$(dirname "$0")" || ( echo "cd fail"; exit 1 )
+
+./get_and_build_everything.sh centos-7.2 "$@"

mcrouter/scripts/order_centos-7.2/01_centos7_deps

@@ -0,0 +1 @@
+../recipes/centos7_deps.sh

mcrouter/scripts/order_centos-7.2/10_folly

@@ -0,0 +1 @@
+../recipes/folly.sh

mcrouter/scripts/order_centos-7.2/12_wangle

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+../recipes/wangle.sh

mcrouter/scripts/order_centos-7.2/15_fbthrift

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+../recipes/fbthrift.sh

mcrouter/scripts/order_centos-7.2/20_mcrouter

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+../recipes/mcrouter.sh

mcrouter/scripts/recipes/centos7_deps.sh

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+#!/usr/bin/env bash
+
+source common.sh
+
+pushd "$PKG_DIR"
+
+# Required for Centos 7 build
+#
+# - epel repo has automake-1.13, automake-1.15 is needed for fbthrift build
+# - base repo has cmake-2.8.11, cmake-2.8.12 is needed for wangle build
+# - ragel centos7 rpm not found, need to build from source
+
+sudo rpm -Uvh "https://kojipkgs.fedoraproject.org/packages/automake/1.15/1.fc22/noarch/automake-1.15-1.fc22.noarch.rpm"
+
+for url in \
+    https://cmake.org/files/v2.8/cmake-2.8.12.2.tar.gz \
+    http://www.colm.net/files/ragel/ragel-6.8.tar.gz \
+    ; do
+  pkg=$(basename "$url")
+  wget "$url" -O "$pkg"
+  tar xzf "$pkg"
+  pushd "${pkg%.tar.gz}"
+  if [ -f ./bootstrap ]; then
+    ./bootstrap
+  elif [ -f ./configure ]; then
+    ./configure
+  fi;
+  make
+  sudo make install
+  popd
+done
+popd
+