semaphore-mongodb-3.4.sh

#! /usr/bin/env bash
set -e

export MONGODB_VERSION=3.4.0

TAR=mongodb-linux-x86_64-ubuntu1404-$MONGODB_VERSION.tgz
URL=https://fastdl.mongodb.org/linux/$TAR

echo "---------------------------------------"
echo "Removing currently installed MongoDB"
echo "---------------------------------------"
sudo apt-get purge -y mongodb-org*

echo "---------------------------------------"
echo "Installing MongoDB version $MONGODB_VERSION"
echo "---------------------------------------"

# install MongoDB from a pre-packaged archive
if ! [ -e $SEMAPHORE_CACHE_DIR/$TAR ]; then (cd $SEMAPHORE_CACHE_DIR; wget $URL); fi
sudo tar xf $SEMAPHORE_CACHE_DIR/$TAR -C /tmp
sudo dpkg -i /tmp/*.deb

# fix permissions for the /tmp directory so MondoDB is able to start
sudo chown root:root /tmp
sudo chmod 1777 /tmp

# initiate the MongoDB service
sudo service mongod start

# print post-installation info
echo "---------------------------------------"
printf "\nInstallation complete.\n\nDetails:\n $(mongod --version)\n"
printf "\nService status:\n $(sudo service mongod status)\n"