nest

nest.sh

#!/usr/bin/env bash

# Tool to the initial setup of a django project on dreamhost:

# Latest version: wget -O - https://gist.githubusercontent.com/guinunez/4f3006aeaef673eed7a0ff6acbeede79/raw/nest.sh | bash

# This is what the script does
# - Create the SSH key
# - install python 3
# - Clone repo
# - create virtualenv: python3 -m venv .env
# - install requeriments.txt
# - create settings-local
# - migrate
# - create passenger file
# - create superuser
# - create public folder with static and media
# - create initial data
# - restart server


function pause(){
   read -p "$*" </dev/tty
}

function version_gt() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }

function vercomp () {
    if [[ $1 == $2 ]]
    then
        return 0
    fi
    local IFS=.
    local i ver1=($1) ver2=($2)
    # fill empty fields in ver1 with zeros
    for ((i=${#ver1[@]}; i<${#ver2[@]}; i++))
    do
        ver1[i]=0
    done
    for ((i=0; i<${#ver1[@]}; i++))
    do
        if [[ -z ${ver2[i]} ]]
        then
            # fill empty fields in ver2 with zeros
            ver2[i]=0
        fi
        if ((10#${ver1[i]} > 10#${ver2[i]}))
        then
            return 1
        fi
        if ((10#${ver1[i]} < 10#${ver2[i]}))
        then
            return 2
        fi
    done
    return 0
}

# TODO: Deberiamos ver si hay un archivo de cracion sin terminar de este sitio

# Config section
echo "Site's base URL? (sin http://)"
read sitiourl </dev/tty

echo "Repo URL? (git-ssh)"
read repourl </dev/tty

echo "Database host:"
read databasehost </dev/tty

echo "Database name:"
read databasename </dev/tty

echo "Database username:"
read databaseuser </dev/tty

echo "Database password:"
read databasepassword </dev/tty

# TODO: Deberiamos crear un archivo de creacion con estas configuraciones

pause 'All set. Press [Enter] key to continue...'

# - Crear la llave SSH
if [ ! -f ~/.ssh/id_rsa.pub ]; then
    echo "id_rsa.pub not found, creating it"
    ssh-keygen
fi


echo "This is the public ssh key, copy it on bitbucket's or github's settings"
echo
cat ~/.ssh/id_rsa.pub

pause 'Press [Enter] key to continue...'

# - instalar python 3
# como dreamhost no tiene instalado venv, vamos a forzar instalacion siempre
python_version="3.10.1"
version=$(python3 -V 2>&1 | grep -Po '(?<=Python )(.+)')
# Testear esto, y mucho
vercomp $version $python_version
# if [ "$version" -gt "$python_version" ]; then
if [ "$?" eq "1" ]; then
   echo "Downloading and installing python $python_version"
   url_python="https://www.python.org/ftp/python/$python_version/Python-$python_version.tar.xz"
   wget $url_python
   tar xvf Python-$python_version.tar.xz
   cd Python-$python_version/
   # TODO: esto hay que actualizarlo instalando openssl 1.1.1 y compilando con esa instalacion: https://help.dreamhost.com/hc/en-us/articles/360001435926-Installing-OpenSSL-locally-under-your-username y ./configure --prefix=$HOME/opt/python-$python_version --enable-optimizations --with-openssl=$HOME/openssl 
   ./configure --prefix=$HOME/opt/python-$python_version --enable-optimizations
   make
   make install
   cd ..

   # TODO: Acá se podra mejorar el shell
   echo "export PATH=\$HOME/opt/python-$python_version/bin:\$PATH" >> ~/.bash_profile
   . ~/.bash_profile

else
   echo "Python 3 already installed. Version: $version"
   python_version=$version
fi

# - Clonar repo

mv $sitiourl $sitiourl".delete"

echo "Cloning the repository"
git clone $repourl $sitiourl

# - crear virtualenv
echo "Creating virtualenv"
python3 -m venv ~/$sitiourl/env/

# - activar virtualenv
echo "Activating virtualenv"
source ~/$sitiourl/env/bin/activate

# - instalar requeriments.txt
echo "installing requeriments.txt"
pip3 install -r ~/$sitiourl/sitio/requirements.txt

# - crear settings-local

echo "ADMINS = (" > ~/$sitiourl/sitio/sitio/settings_local.py
echo "    (u'Contacto $sitiourl', 'contacto@$sitiourl')," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo ")" >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "" >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "DATABASES = {" >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "    'default': {" >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "        'ENGINE': 'django.db.backends.mysql'," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "        'NAME': '$databasename'," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "        'USER': '$databaseuser'," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "        'PASSWORD': '$databasepassword'," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "        'HOST': '$databasehost'," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "        'OPTIONS': {" >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "            'sql_mode': 'STRICT_ALL_TABLES'," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "        }," >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "    }" >> ~/$sitiourl/sitio/sitio/settings_local.py
echo "}" >> ~/$sitiourl/sitio/sitio/settings_local.py


# - migrar

python3 ~/$sitiourl/sitio/manage.py migrate

# - crear archivo passenger

echo "import sys, os" > ~/$sitiourl/passenger_wsgi.py
echo "INTERP = os.path.join(os.environ['HOME'], '$sitiourl', 'env', 'bin', 'python3')" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "if sys.executable != INTERP:" >> ~/$sitiourl/passenger_wsgi.py
echo "    os.execl(INTERP, INTERP, *sys.argv)" >> ~/$sitiourl/passenger_wsgi.py
echo "sys.path.append(os.getcwd())" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "# add your project directory to the sys.path" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "project_home = os.path.join(os.environ['HOME'], '$sitiourl', 'sitio')" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "if project_home not in sys.path:" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "    sys.path.append(project_home)" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "# set environment variable to tell django where your settings.py is" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "os.environ['DJANGO_SETTINGS_MODULE'] = 'sitio.settings'" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "# serve django via WSGI" >> ~/$sitiourl/passenger_wsgi.py
echo "" >> ~/$sitiourl/passenger_wsgi.py
echo "# Django >= 1.7" >> ~/$sitiourl/passenger_wsgi.py
echo "from django.core.wsgi import get_wsgi_application" >> ~/$sitiourl/passenger_wsgi.py
echo "application = get_wsgi_application()" >> ~/$sitiourl/passenger_wsgi.py


# - crear superusuario
python3 ~/$sitiourl/sitio/manage.py createsuperuser </dev/tty
# - crear carpeta public con static y media
# no lo hacemos, que lo haga el programador del sitio

# - crear datos iniciales
# a futuro

# - reiniciar server
mkdir ~/$sitiourl/tmp
touch ~/$sitiourl/tmp/restart.txt

echo "Done"

# TODO: Deberiamos borrar el archivo de creacion