Zero downtime deploys using Laravel Forge

laravel-forge-zero-downtime.sh

# Zero-downtime deployment script for Laravel Forge
#
# !!! WARNING FOR FIRST DEPLOYMENT !!!
# 
# 1. Proceed with caution!
# During first setup this script will backup your .env file and storage folder, then DELETE your existing app directory.
# Make sure you don't have any important files inside your app directory and take a backup up beforehand as needed.
# 
# 2. Your web server should now point at /current/public instead of /public
#
# 3. Edit these variables to match your project.
FORGE_USER="forge"
PROJECT_NAME="example.com"
PROJECT_REPO="git@github.com:username/repository.git"
RELEASES_KEPT=3
RELEASE=$(date +"%Y%m%d%H%M%S")

# That's it. Now we begin.

# Project directory
PROJECT_DIR="/home/"$FORGE_USER"/"$PROJECT_NAME
# Directory where recent releases are kept
RELEASES_DIR=$PROJECT_DIR"/releases"
# Directory holding the current release
CURRENT_RELEASE_DIR=$RELEASES_DIR"/"$RELEASE

cd "/home/"$FORGE_USER

# If deploying for the first time...
if [ ! -d $PROJECT_NAME"/releases" ]
then
    # Create a directory where we'll set-up everything
    TMP_DIR=$PROJECT_NAME"-tmp"
    mkdir -p $TMP_DIR"/releases"

    # Make copies of the storage folder and the .env file
    cp $PROJECT_DIR"/.env" $TMP_DIR"/.env"
    cp -r $PROJECT_DIR"/storage" $TMP_DIR"/storage"

    rm -rf $PROJECT_DIR
    mv $TMP_DIR $PROJECT_DIR
fi

# Create new release
mkdir -p $RELEASES_DIR
cd $RELEASES_DIR
git clone --depth 1 $PROJECT_REPO $RELEASE 

cd $CURRENT_RELEASE_DIR

# ------------ DEPLOYMENT SCRIPT STARTS HERE -----------

# Install dependencies
$FORGE_COMPOSER install --no-interaction --no-dev --prefer-dist --optimize-autoloader

# Build front-end assets
npm install
npm run production

# Clean up
rm -rf node_modules
rm -rf .git

# Symlink the .env file
ln -sfn $PROJECT_DIR"/.env" $CURRENT_RELEASE_DIR"/.env"

# Symlink the storage folder
rm -rf storage
ln -sfn $PROJECT_DIR"/storage" $CURRENT_RELEASE_DIR"/storage"

if [ -f artisan ]
then
    $FORGE_PHP artisan migrate --force
    $FORGE_PHP artisan config:cache
    $FORGE_PHP artisan route:cache
    $FORGE_PHP artisan queue:restart
fi

# ------------ DEPLOYMENT SCRIPT ENDS HERE -----------

# Point the current folder to this release 
ln -sfn $CURRENT_RELEASE_DIR $PROJECT_DIR"/current"

# Clean up old releases.
cd $RELEASES_DIR
rm -rf `ls -1 | sort -r | tail -n +$((RELEASES_KEPT+1))`