karoshi-server-patch-gitlab-05112016.sh

#!/bin/bash

# Update Gitlab CE 8.5 to CE 8.13.3 on Karoshi-Server.
# More info at: http://www.linuxschools.com/forum/viewtopic.php?f=6&t=622

# TODO:
# - Format echo statements in HTML5 style
# - Change the backup directory to the correct place

# 05/11/2016 (DD/MM/YYYY)

SERVERNAME=$(hostname -f)

if [ -f "/opt/karoshi/server_network/servers/${SERVERNAME}/gitlab" ]; then
	source /opt/karoshi/serversetup/variables/distro

	echo "Updating Gitlab CE 8.5 (trusty) to Gitlab CE 8.13.3-ce.0 (xenial)"

	echo "Stopping Gitlab."
	/opt/karoshi/serversetup/distro/$DISTROCHOICE/scripts/control_services/gitlab_stop

	echo "Backing up /etc/gitlab (config and secrets)"

	#TODO: Suitable backup dir
	[ -d "/home/gitlab_backup" ] || mkdir -p "/home/gitlab_backup"
	[ -d "/home/gitlab_backup/etc/gitlab" ] || mkdir -p "/home/gitlab_backup/etc/gitlab"
	[ -d "/home/gitlab_backup/home/gitlab" ] || mkdir -p "/home/gitlab_backup/home/gitlab"

	cp -r /etc/gitlab /home/gitlab_backup/etc/gitlab #TODO: Suitable backup dir

	echo "Backing up /home/gitlab (user repos and data)"
	cp -r /home/gitlab /home/gitlab_backup/home/gitlab #TODO: Suitable backup dir

	echo "Removing existing Gitlab installation."
	rm -rf /opt/gitlab

	# Download Gitlab
	# MD5sum: 8614aa27c0ff83ac209538a5bb762412

	[ -d "/opt/karoshi/.tempdata/gitlab_temp" ] && rm -r "/opt/karoshi/.tempdata/gitlab_temp"

	mkdir /opt/karoshi/.tempdata/gitlab_temp

	WGET_URL="https://packages.gitlab.com/gitlab/gitlab-ce/packages/ubuntu/xenial/gitlab-ce_8.13.3-ce.0_amd64.deb/download"

	[ ! -f /opt/karoshi/serversetup/modules/gitlab/gitlab.deb ] && echo -e "" >> /opt/karoshi/serversetup/modules/gitlab/gitlab.deb
	checksum=$(md5sum "/opt/karoshi/serversetup/modules/gitlab/gitlab.deb" | cut -d ' ' -f 1)

	if [ "$checksum" != "8614aa27c0ff83ac209538a5bb762412" ]; then
		# The package does not exit and/or it is not valid
		# Download Gitlab-CE 8.13.3-ce.0 (Omnibus, Ubuntu Xenial amd64) Package from https://packages.gitlab.com/gitlab/gitlab-ce
		rm -f /opt/karoshi/serversetup/modules/gitlab/gitlab.deb
		echo '<ul><li>'$"Downloading Gitlab package from https://packages.gitlab.com/gitlab/gitlab-ce"'</li></ul>'

		echo '<div style="height: 180px;width:70%;font-size: 100%;overflow:scroll;"><pre style="font-size: 10pt; font-family:Arial, Times, Georgia, serif">'

		wget --progress=dot:mega --timeout=10 -O /opt/karoshi/serversetup/modules/gitlab/gitlab.deb $WGET_URL 2>&1
		wgetOut=$?

		echo "</pre></div>"

		if [ $wgetOut != 0 ]; then
			#We failed so bail out.
			echo '<ul><li>'$"There was a problem downloading the archive."'</li></ul>'
			sleep 5
			exit 101
		fi

		# Verify that the file is complete and that the correct file was downloaded
		checksum=$(md5sum "/opt/karoshi/serversetup/modules/gitlab/gitlab.deb" | cut -d ' ' -f 1)
		if [ "$checksum" != "8614aa27c0ff83ac209538a5bb762412" ]; then
			echo '<ul><li>'$"There was a problem verifying the downloaded archive."'</li></ul>'
			sleep 5
			exit 101
		else
			echo '<ul><li>'$"Downloaded archive verified!"'</li></ul>'
		fi
	else
		echo '<ul><li>'$"Existing .deb archive validated, skipping download."'</li></ul>'
	fi

	# Extract Gitlab

	cd /opt/karoshi/.tempdata/

	echo '<ul><li>'$"Extracting Gitlab"'</li></ul>'
	dpkg -x /opt/karoshi/serversetup/modules/gitlab/gitlab.deb /opt/karoshi/.tempdata/gitlab_temp 1>/dev/null 2>/dev/null

	# Copy files into place
	echo '<ul><li>'$"Copying Gitlab files into place - This may take a while"'</li></ul>'
	echo '<div style="height: 180px;width:70%;font-size: 100%;overflow:scroll;"><pre style="font-size: 10pt; font-family:Arial, Times, Georgia, serif">'

	rsync -a --no-i-r --info=progress2 /opt/karoshi/.tempdata/gitlab_temp/opt/gitlab /opt/

	# Symlink gitlab-ctl
	/opt/gitlab/embedded/bin/symlink_ctl_cmds /opt/gitlab

	# Delete temp extracted files (they total ~1GB)
	rm -rf /opt/karoshi/.tempdata/gitlab_temp
	echo '</pre></div>'

	echo '<ul><li>'$"Reconfiguring and restarting Gitlab -  This may take a while."'</li></ul>'
	echo '<div style="height: 180px;width:70%;font-size: 100%;overflow:scroll;"><pre style="font-size: 10pt; font-family:Arial, Times, Georgia, serif">'
	gitlab-ctl reconfigure
	# Restart gitlab
	/opt/karoshi/serversetup/distro/$DISTROCHOICE/scripts/control_services/gitlab_stop 1>/dev/null
	/opt/karoshi/serversetup/distro/$DISTROCHOICE/scripts/control_services/gitlab_start 1>/dev/null
	echo '</pre></div>'

	echo "Gitlab has been updated and restarted, all exisitng configurations and user data should still be in place."
	echo "Backups of Gitlab data have been made at: /home/gitlab_backup" #TODO: Suitable backup dir
else
	echo "Gitlab could not be found on this server, skipping patch."
fi