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HOSTING COMPLEX WEB APPLICATIONS ON WEBFACTION SERVERS Martin Brochhaus (@mbrochh) PyCon Singapore 2013 Saturday, 15 June, 13

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Martin Brochhaus Founder of Bitmazk Pte. Ltd. @mbrochh [email protected] Saturday, 15 June, 13

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WHY WEBFACTION? • https://www.webfaction.com/features • Very fast setup (< 1 hour) & affordable (102 USD / year) • Server centers in Texas, Amsterdam and Singapore • One click installers (Django, Git) • Don’t worry about Apache, Nginx setup • Great Control Panel, don’t worry about DNS setup • Insanely great support team / strong community Saturday, 15 June, 13

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WHY NOT WEBFACTION? • Only 265 MB RAM (long running processes can be tricky) • Probably not the fastest CPUs? • No root access (obviously, because shared hosting) • Shared hosting (other users can slow down your instance) Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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WHAT IS POSSIBLE? Saturday, 15 June, 13

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SIGNUP • https://www.webfaction.com/?affiliate=bitmazk • Server is usually ready in less than an hour • You will get an email with username and password • Let’s begin! Saturday, 15 June, 13

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CHANGE PASSWORDS • https://my.webfaction.com/password • Change Control Panel password (for now:pyconsgpw) • Change SSH password (for now: pyconsgpw) Saturday, 15 June, 13

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DEPLOY SSH KEY • Create your RSA-Key: ssh-keygen -t rsa • Deploy your RSA-Key ssh [email protected] mkdir .ssh touch .ssh/authorized_keys chmod 600 .ssh/authorized_keys chmod 700 .ssh/authorized_keys Saturday, 15 June, 13

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WEBSITES, APPS & DOMAINS WEBSITE (i.e. myproject) DOMAIN (i.e. www.example.com) Django App (/) Static App (/static/) Saturday, 15 June, 13

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SETUP YOUR DOMAINS • https://my.webfaction.com/domains • For our testing purpose just add www.username.webfactional.com Saturday, 15 June, 13

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SETUP YOUR APPS • https://my.webfaction.com/applications • Delete htdocs • Add git (Latest git) • Add username_django (Latest Django) • Add username_static (Static / Static only / expires max) • Add username_media (Static / Static only / expires max) • Add username_www (Static / Static/CGI/PHP-5.4) • Add username_no_ssl (Static / Static/CGI/PHP-5.4) Saturday, 15 June, 13

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SETUP YOUR WEBSITES • https://my.webfaction.com/websites • Edit the existing one • Enable HTTPS • Add django / media / static apps • Create new one (username_nossl) • Add all domains • Add no_ssl app • Create new one (username_www) • Enable HTTPS • Add www domains • Add www app Saturday, 15 June, 13

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SETUP MAILBOX • https://my.webfaction.com/mailboxes • Name it (i.e. pyconsg001) • Note down the password (for now: emailpw) Saturday, 15 June, 13

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SETUP DATABASE • https://my.webfaction.com/databases • Name it (i.e. pyconsg001) • Select PostgreSQL • Create User () • Note down the password (for now: dbpw) Saturday, 15 June, 13

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BEFORE WE START... USE TMUX! • Start tmux with `tmux` • Create new window with `CTRL+a c` • Toggle window with `CTRL+a X` where X is the window ID • List all windows with `CTRL+a w` • List all tmux sessions with `tmux ls` • Re-attach a session with `tmux attach-session -t X` where X is the session ID Saturday, 15 June, 13

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INITIAL SERVER SETUP • (on the server) git clone git://github.com/bitmazk/webfaction-dotfiles.git ./webfaction-dotfiles/bin/init.sh zsh source .zshrc git config --global user.email "[email protected]" git config --global user.name "Your Name" Saturday, 15 June, 13

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PLEASE BE PATIENT... Picture: Pauline Mak Saturday, 15 June, 13

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INITIATE GIT REPOSITORY • (on the server) cd webapps/git git init --bare repos/pyconsg001.git Saturday, 15 June, 13

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INITIATE DJANGO PROJECT • (on the server) cd src git clone git://github.com/bitmazk/django-project-template.git cd vim init.sh # Change the project name to your username ./init.sh git remote add origin ~/webapps/git/repos/.git git push -u origin master cd mkvirtualenv pip install -r requirements.txt Saturday, 15 June, 13

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PIP WILL TAKE A WHILE Picture: Pauline Mak Saturday, 15 June, 13

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A WORD ABOUT VIRTUALENV Global packages: /usr/lib/python2.7/site- packages see Stackoverflow Local packages: $HOME/lib/python2.7/ Virtual Envs: $HOME/Envs/envname/lib/ python2.7/site-packages Saturday, 15 June, 13

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PREPARE FIRST DEPLOYMENT • (on the server) cp -rf ~/src/ ~/webapps/_django/ cd ~/webapps/_django rm -rf myproject rm -rf lib/python2.7/* vim apache2/conf/httpd.conf • Replace “myproject” with “” • Replace .../python2.7 path with ~/Envs//lib/ python2.7/site-packages Saturday, 15 June, 13

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CREATE LOCAL_SETTINGS.PY • (on the server) cd ~/webapps/_django//settings cp local_settings.py.sample local_settings.py • Add yourself to admins • Replace database password • Uncomment email settings and set email password Saturday, 15 June, 13

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TRY COLLECTSTATIC • (on the server) cd ~/webapps/_django/ workon ./manage.py collectstatic Saturday, 15 June, 13

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INITIALIZE DATABASE • (on the server) cd ~/webapps/_django/ workon ./manage.py syncdb --all ./manage.py migrate --fake Saturday, 15 June, 13

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CREATE .PGPASS FILE • (on the server) cd $HOME cp src//scripts/.pgpass . chmod 600 .pgpass vim .pgpass • Replace the values with your database credentials Saturday, 15 June, 13

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TEST SERVER SCRIPTS • (on the server) cd ~/bin ./pg-backup.sh ./locale-backup.sh ./media-backup.sh ./django-cleanup.sh ./django-retry-deferred.sh ./django-send-email.sh Saturday, 15 June, 13

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ADD CRONTAB • (on the server) cp ~/src//scripts/crontab.txt $HOME vim crontab.txt * crontab crontab.txt rm crontab.txt • * Replace MAILFROM and MAILTO in crontab.txt Saturday, 15 June, 13

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DEPLOY WEBSITE • (on the server) cd ~/src// workon fab prod run_deploy_website • Browse to https://.webfactional.com/p/home.html • See https://github.com/bitmazk/django-development-fabfile Saturday, 15 June, 13

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TRY THE REDIRECTS • They are already copied into webapps/username_www and webapps/username_no_ssl • Open http://username.webfactional.com • Open https://www.username.webfactional.com • Open http://www.username.webfactional.com Saturday, 15 June, 13

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TEST ADMIN HONEYPOT & EMAIL SENDING • Your admin url is set to `/admin-XXXX/` • Visit `/admin-1234/` and try to login • You should get an email warning • You should not be able to login :) Saturday, 15 June, 13

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OTHER USEFUL THINGS Picture: Elvert Barnes Saturday, 15 June, 13

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EMERGENCY DEBUGGING • django_settings.py has a file system logger defined • use it like so, somewhere in your code: import logging logger = logging.getLogger('debugger') logger.debug('Some debug output') • don’t forget restart-apache or touch wsgi.py Saturday, 15 June, 13

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INSTALL SSL CERTIFICATE • Without SSL logging into your site is not secure • http://startssl.com/ • http://martinbrochhaus.com/ssl.html Saturday, 15 June, 13

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SETUP LOCAL DEV ENVIRONMENT • (on local machine) git clone [email protected]:/ home/username/webapps/git/repos/username.git • cd username/username mkvirtualenv -p python2.7 username pip install -r requirements.txt # create your local_settings.py fab create_db ./manage.py syncdb --all ./manage.py migrate --fake ./manage.py runserver Saturday, 15 June, 13

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THANK YOU! https://github.com/bitmazk/webfaction-dotfiles https://github.com/bitmazk/django-project-template https://github.com/bitmazk/django-development-fabfile/ @mbrochh Saturday, 15 June, 13