Setup CertBot on CentOS/RHEL 5

certbot_on_centos-rhel-5.sh

#!/bin/sh

#Create working directory
CERTBOT_DIR=/opt/modules/src/certbot
mkdir $CERTBOT_DIR/src -p
cd $CERTBOT_DIR/src

#install openssl to working dir.
wget --no-check-certificate https://www.openssl.org/source/openssl-1.0.1t.tar.gz
tar xvzf openssl-1.0.1t.tar.gz && cd openssl-1.0.1t
./config --prefix=$CERTBOT_DIR/openssl-1.0.1t shared --openssldir=$CERTBOT_DIR/openssl-1.0.1t/openssl
make depend && make && make install
ln -s $CERTBOT_DIR/openssl-1.0.1t  $CERTBOT_DIR/openssl

#install python 2.7 to working dir.
cd $CERTBOT_DIR/src
wget --no-check-certificate https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz
tar xvf Python-2.7.11.tgz
cd Python-2.7.11
export LDFLAGS=-"Wl,-rpath=$CERTBOT_DIR/openssl/lib -L$CERTBOT_DIR/openssl/lib -L$CERTBOT_DIR/openssl/lib64/"
export LD_LIBRARY_PATH="$CERTBOT_DIR/openssl/lib/:$CERTBOT_DIR/openssl/lib64"
export CPPFLAGS="-I$CERTBOT_DIR/openssl/include -I$CERTBOT_DIR/openssl/include/openssl"
./configure --prefix=$CERTBOT_DIR/python-2.7.11
make && make install
ln -s $CERTBOT_DIR/python-2.7.11 $CERTBOT_DIR/python
export PATH=$CERTBOT_DIR/python/bin:$PATH

#install pip to working dir.
cd $CERTBOT_DIR/src && wget --no-check-certificate https://bootstrap.pypa.io/get-pip.py
python2.7 get-pip.py
pip install virtualenv wheel

#get certbot script
cd $CERTBOT_DIR/src
git clone https://github.com/certbot/certbot
cd certbot

#run certbot
./letsencrypt-auto certonly --no-bootstrap