canaille-globuzma/doc/install.rst
2023-07-01 19:06:26 +02:00

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Installation
############
.. warning ::
Canaille is under heavy development and may not fit a production environment yet.
The installation of canaille consist in several steps, some of which you can do manually or with command line tool:
.. contents::
:local:
Get the code
============
As the moment there is no distribution package for canaille. However, it can be installed with the ``pip`` package manager.
Let us choose a place for the canaille environment, like ``/opt/canaille/env``.
.. code-block:: bash
export CANAILLE_INSTALL_DIR=/opt/canaille
sudo mkdir --parents "$CANAILLE_INSTALL_DIR"
sudo virtualenv --python=python3 "$CANAILLE_INSTALL_DIR/env"
sudo "$CANAILLE_INSTALL_DIR/env/bin/pip" install canaille
Configuration
=============
Choose a path where to store your configuration file. You can pass any configuration path with the ``CONFIG`` environment variable.
.. code-block:: bash
export CANAILLE_CONF_DIR=/etc/canaille
sudo mkdir --parents "$CANAILLE_CONF_DIR"
sudo cp $CANAILLE_INSTALL_DIR/env/lib/python*/site-packages/canaille/config.sample.toml "$CANAILLE_CONF_DIR/config.toml"
You should then edit your configuration file to adapt the values to your needs.
Installation
============
Automatic schemas installation
------------------------------
If you want to install the LDAP schemas yourself, then you can jump to the manual installation section.
.. code-block:: bash
env CONFIG="$CANAILLE_CONF_DIR/config.toml" "$CANAILLE_INSTALL_DIR/env/bin/canaille" install
Manual schemas installation
---------------------------
LDAP schemas
^^^^^^^^^^^^
As of OpenLDAP 2.4, two configuration methods are available:
- The `deprecated <https://www.openldap.org/doc/admin24/slapdconf2.html>`_ one, based on a configuration file (generally ``/etc/ldap/slapd.conf``);
- The new one, based on a configuration directory (generally ``/etc/ldap/slapd.d``).
Depending on the configuration method you use with your OpenLDAP installation, you need to chose how to add the canaille schemas:
Old fashion: Copy the schemas in your filesystem
""""""""""""""""""""""""""""""""""""""""""""""""
.. code-block:: bash
test -d /etc/openldap/schema && sudo cp "$CANAILLE_INSTALL_DIR/env/lib/python*/site-packages/canaille/backends/ldap/schemas/*" /etc/openldap/schema
test -d /etc/ldap/schema && sudo cp "$CANAILLE_INSTALL_DIR/env/lib/python*/site-packages/canaille/backends/ldap/schemas/*" /etc/ldap/schema
sudo service slapd restart
New fashion: Use slapadd to add the schemas
"""""""""""""""""""""""""""""""""""""""""""
Be careful to stop your ldap server before running ``slapadd``
.. code-block:: bash
sudo service slapd stop
sudo -u openldap slapadd -n0 -l "$CANAILLE_INSTALL_DIR/env/lib/python*/site-packages/canaille/backends/ldap/schemas/*.ldif"
sudo service slapd start
Generate the key pair
---------------------
You must generate a keypair that canaille will use to sign tokens.
You can customize those commands, as long as they match the ``JWT`` section of your configuration file.
.. code-block:: bash
sudo openssl genrsa -out "$CANAILLE_CONF_DIR/private.pem" 4096
sudo openssl rsa -in "$CANAILLE_CONF_DIR/private.pem" -pubout -outform PEM -out "$CANAILLE_CONF_DIR/public.pem"
Configuration check
^^^^^^^^^^^^^^^^^^^
After a manual installation, you can check your configuration file with the following command:
.. code-block:: bash
env CONFIG="$CANAILLE_CONF_DIR/config.toml" "$CANAILLE_INSTALL_DIR/env/bin/canaille" check
Application service
===================
Finally you have to run canaille in a WSGI application server.
Here are some WSGI server configuration examples you can pick. Do not forget to update the paths.
gunicorn
--------
TBD
uwsgi
-----
.. code-block:: ini
[uwsgi]
virtualenv=/opt/canaille/env
socket=/etc/canaille/uwsgi.sock
plugin=python3
module=canaille:create_app()
lazy-apps=true
master=true
processes=1
threads=10
need-app=true
thunder-lock=true
touch-chain-reload=/etc/canaille/uwsgi-reload.fifo
enable-threads=true
reload-on-rss=1024
worker-reload-mercy=600
buffer-size=65535
disable-write-exception = true
env = CONFIG=/etc/canaille/config.toml
Webserver
=========
Now you have to plug your WSGI application server to your webserver so it is accessible on the internet.
Here are some webserver configuration examples you can pick:
Nginx
-----
.. code-block:: nginx
server {
listen 80;
listen [::]:80;
server_name auth.mydomain.tld;
return 301 https://$server_name$request_uri;
}
server {
server_name auth.mydomain.tld;
listen 443 ssl http2;
listen [::]:443 ssl http2;
ssl_certificate /etc/letsencrypt/live/moncompte.nubla.fr/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/moncompte.nubla.fr/privkey.pem;
ssl_session_timeout 1d;
ssl_session_cache shared:MozSSL:10m; # about 40000 sessions
ssl_session_tickets off;
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
ssl_prefer_server_ciphers off;
ssl_stapling on;
ssl_stapling_verify on;
index index.html index.php;
charset utf-8;
client_max_body_size 10M;
access_log /opt/canaille/logs/nginx.access.log;
error_log /opt/canaille/logs/nginx.error.log;
gzip on;
gzip_vary on;
gzip_comp_level 4;
gzip_min_length 256;
gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
add_header X-Frame-Options "SAMEORIGIN" always;
add_header X-XSS-Protection "1; mode=block" always;
add_header X-Content-Type-Options "nosniff" always;
add_header Referrer-Policy "same-origin" always;
location /static {
root /opt/canaille/src/canaille;
location ~* ^.+\.(?:css|cur|js|jpe?g|gif|htc|ico|png|html|xml|otf|ttf|eot|woff|woff2|svg)$ {
access_log off;
expires 30d;
add_header Cache-Control public;
}
}
location / {
include uwsgi_params;
uwsgi_pass unix:/etc/canaille/uwsgi.sock;
}
}
Apache
------
TBD
Recurrent jobs
==============
You might want to clean up your database to avoid it growing too much. You can regularly delete
expired tokens and authorization codes with:
.. code-block:: bash
env CONFIG="$CANAILLE_CONF_DIR/config.toml" FLASK_APP=canaille "$CANAILLE_INSTALL_DIR/env/bin/canaille" clean
Webfinger
=========
You may want to configure a `WebFinger`_ endpoint on your main website to allow the automatic discovery of your Canaille installation based on the account name of one of your users. For instance, suppose your domain is ``mydomain.tld`` and your Canaille domain is ``auth.mydomain.tld`` and there is a user ``john.doe``. A third-party application could require to authenticate the user and ask them for a user account. The user would give their account ``john.doe@mydomain.tld``, then the application would perform a WebFinger request at ``https://mydomain.tld/.well-known/webfinger`` and the response would contain the address of the authentication server ``https://auth.mydomain.tld``. With this information the third party application can redirect the user to the Canaille authentication page.
The difficulty here is that the WebFinger endpoint must be hosted at the top-level domain (i.e. ``mydomain.tld``) while the authentication server might be hosted on a sublevel (i.e. ``auth.mydomain.tld``). Canaille provides a WebFinger endpoint, but if it is not hosted at the top-level domain, a web redirection is required on the ``/.well-known/webfinger`` path.
Nginx
-----
.. code-block:: nginx
server {
listen 443;
server_name mydomain.tld;
rewrite ^/.well-known/webfinger https://auth.mydomain.tld/.well-known/webfinger permanent;
}
Apache
------
.. code-block:: apache
<VirtualHost *:443>
ServerName mydomain.tld
RewriteEngine on
RewriteRule "^/.well-know/webfinger" "https://auth.mydomain.tld/.well-known/webfinger" [R,L]
</VirtualHost>
.. _WebFinger: https://www.rfc-editor.org/rfc/rfc7033.html