Laravel Forge - Zero Downtime Deployment for NPM projects

laravel_forge_deploy.sh

DEPLOY_FOLDER_DATE=$(date '+%Y%m%d%H%M%S')
WEBSITE_FOLDER="app.metricswave.com"
GIT_REPO="git@github.com:MetricsWave/app.git"
METRICS_WAVE_EVENT="XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXX"

echo 'Create new deploy folder…'
echo "Folder: /home/forge/${WEBSITE_FOLDER}_deployments/${DEPLOY_FOLDER_DATE}"
mkdir -p /home/forge/app.metricswave.com_deployments/$DEPLOY_FOLDER_DATE

echo 'Bulding app in deployment folder…'
cd /home/forge/$WEBSITE_FOLDER_deployments/$DEPLOY_FOLDER_DATE
git clone $GIT_REPO .
git pull origin $FORGE_SITE_BRANCH

echo "NPM install and build…"
npm install
npm run build

echo 'Replacing current app with deployment folder…'
rm -rf /home/forge/$WEBSITE_FOLDER
ln -s /home/forge/$WEBSITE_FOLDER_deployments/$DEPLOY_FOLDER_DATE /home/forge/$WEBSITE_FOLDER

cd /home/forge/$WEBSITE_FOLDER

( flock -w 10 9 || exit 1
    echo 'Restarting FPM...'; sudo -S service $FORGE_PHP_FPM reload ) 9>/tmp/fpmlock

# Remove previous deploys
cd /home/forge/$WEBSITE_FOLDER_deployments
find . -maxdepth 1 -mindepth 1 -type d -printf "%T+ %f\0" | sort -z | head -z -n -1 | cut -z -d' ' -f 2- | xargs -0 rm -rf &

# Notify deployment
cd /home/forge/$WEBSITE_FOLDER
BODY='{"version":"'$(git log --pretty=format:'%h' -n 1)'", "message":"'$(git log --pretty=format:'%s' -n 1)'","author":"'$(git log --pretty=format:'%an' -n 1)'", "service":"Application"}'
curl -X POST https://metricswave.com/webhooks/$METRICS_WAVE_EVENT \
  -H "Content-Type: application/json" \
-H "Accept: application/json" \
-d "$BODY"