Mattermost Entreprise Edition upgrade automation tool

mattermost_upgrade.sh

#!/bin/bash

echo "..:: Mattermost Upgrade ::.."

function usage {
    echo "Usage: $0 [VERSION NUMBER]"
    exit 1
}

INSTALLDIR='/opt'
VERSION=$1

if [[ -z $VERSION ]]; then
    usage
fi

CURRENT=$(${INSTALLDIR}/mattermost/bin/mattermost version | grep "Build Number:" | awk '{print $NF}')
echo "[+] Current installed version is ${CURRENT}"

if [[ "${VERSION}" == "${CURRENT}" ]]; then
    echo "[!] You are already on latest version..."
    exit 0
fi

cd /tmp/

echo "[+] Download Mattermost v${VERSION}"
URL="https://releases.mattermost.com/${VERSION}/mattermost-${VERSION}-linux-amd64.tar.gz"
CORRECT=$(curl --head --write-out %{http_code} --silent --output /dev/null ${URL})
if [[ "${CORRECT}" -ne '200' ]]; then
    echo "[!] This version does not exists!"
    exit 1
fi
wget -q ${URL}

echo "[+] Extract to mattermost-update"
tar -xf mattermost*.gz --transform='s,^[^/]\+,\0-upgrade,'

echo "[+] Stop Mattermost service"
service mattermost stop

echo "[+] Migrate new files"
cd ${INSTALLDIR}
cp -ra mattermost/ mattermost-back-$(date +'%F-%H-%M')/
find mattermost/ mattermost/client/ -mindepth 1 -maxdepth 1 \! \( -type d \( -path mattermost/client -o -path mattermost/client/plugins -o -path mattermost/config -o -path mattermost/logs -o -path mattermost/plugins -o -path mattermost/data \) -prune \) | sort | xargs rm -r
mv mattermost/plugins/ mattermost/plugins~
mv mattermost/client/plugins/ mattermost/client/plugins~
chown -hR mattermost:mattermost /tmp/mattermost-upgrade/
cp -an /tmp/mattermost-upgrade/. mattermost/
rm -rf /tmp/mattermost-upgrade/

echo "[+] Reinstall plugins"
cd ${INSTALLDIR}/mattermost
rsync -au plugins~/ plugins
rm -rf plugins~
rsync -au client/plugins~/ client/plugins
rm -rf client/plugins~

echo "[+] Restart services"
service mattermost start

echo "[+] Remove /tmp files"
rm /tmp/mattermost-${VERSION}-linux-amd64.tar.gz

echo "[+] All done!"