Installing pagure ================= There are two ways to install pagure: * via the RPM package (recommanded if you are using a RPM-based linux distribution) * via the setup.py Installing pagure via RPM ------------------------- Here as well there are two ways of obtaining the RPM: * From the main repositories Pagure is packaged for Fedora since Fedora 21 and is available for RHEL and its derivative via the `EPEL repository `. So installing it is as easy as: :: dnf install pagure pagure-milters pagure-ev pagure-webhook or :: yum install pagure pagure-milters pagure-ev pagure-webhook The ``pagure`` package contains the core of the application and the doc server. (See the ``Overview`` page for a global overview of the structure of the project). The ``pagure-milters`` package contains, as the name says, the milter (a mail filter to hook into a MTA). The ``pagure-ev`` package contains the eventsource server. The ``pagure-webhook`` package contains the web-hook server. .. note:: The last three packages are optional, pagure would work fine without them but the live-update, the webhook and the comment by email services will not work. * From the sources If you wish to run a newer version of pagure than what is in the repositories you can easily rebuild it as RPM. Simply follow these steps: # Clone the sources:: git clone https://pagure.io/pagure.git # Go to the folder:: cd pagure # Build a tarball of the latest version of pagure:: python setup.py sdist # Build the RPM:: rpmbuild -ta dist/pagure*.tar.gz This will build pagure from the version present in your clone. Once, the RPM is installed the services ``pagure_milter`` and ``pagure_ev`` are ready to be used but the database and the web-application parts still need to be configured. Installing pagure via setup.py ------------------------------ Pagure includes in its sources a ``setup.py`` automatint the installation of the web applications of pagure (ie: the core + the doc server). To install pagure via this mechanism simply follow these steps: # Clone the sources:: git clone https://pagure.io/pagure.git # Go to the folder:: cd pagure # Install the latest version of pagure:: python setup.py build sudo python setup.py install .. note:: To install the eventsource server or the milter, refer to their respective documentations. # Install the additional files as follow: +------------------------------+------------------------------------------+ | Source | Destination | +=============================+===========================================+ | ``files/pagure.cfg.sample`` | ``/etc/pagure/pagure.cfg`` | +------------------------------+------------------------------------------+ | ``files/alembic.ini`` | ``/etc/pagure/alembic.ini`` | +------------------------------+------------------------------------------+ | ``files/pagure.conf`` | ``/etc/httpd/conf.d/pagure.conf`` | +------------------------------+------------------------------------------+ | ``files/pagure.wsgi`` | ``/usr/share/pagure/pagure.wsgi`` | +------------------------------+------------------------------------------+ | ``createdb.py`` | ``/usr/share/pagure/pagure_createdb.py`` | +------------------------------+------------------------------------------+ Set-up pagure ------------- Once pagure's files are installed, you still need to set up some things. * Create the folder release This folder is used by project maintainers to upload the tarball of the releases of their project. This folder must be accessible by the user under which the application is running (in our case: ``git``). :: mkdir -p /var/www/releases chown git:git /var/www/releases * Create the folders where the repos, forks and checkouts will be stored Pagure stores the sources of a project in a git repo, offers a place to store the project's documentation in another repo, stores a JSON dump of all issues and of all pull-requests in another two repos, and keeps a local checkout of remote projects when asked to do remote pull-requests. All these repositories are stored in different folders that must be created manually. For example you can place them under ``/srv/git/repositories/`` which would make ``/srv/git`` the home of your gitolite user. You would then create the folders with: :: mkdir /srv/git/repositories/{docs,forks,tickets,requests,remotes} * Configure apache If installed by RPM, you will find an example apache configuration file at: ``/etc/httpd/conf.d/pagure.conf``. If not installed by RPM, the example files is present in the sources at: ``files/pagure.conf``. Adjust it for your needs. * Configure the WSGI file If you installed by RPM, you will find an example WSGI file at: ``/usr/share/pagure/pagure.wsgi`` and ``/usr/share/pagure/docs_pagure.wsgi`` for the doc server. If you did not install by RPM, these files are present in the sources at: ``files/pagure.wsgi`` and ``files/doc_pagure.wsgi``. Adjust them for your needs * Give apache permission to read the repositories owned by the ``git`` user. For the sake of this document, we assume that the web application runs under the ``git`` user, the same user as your gitolite user, but apache itself runs under the ``httpd`` (or ``apache2``) user. So by default, apache will not be allowed to read git repositories created and managed by gitolite. To give apache this permission (required to make git clone via http work), we use file access control lists (aka FACL): :: setfacl -m user:apache:rx --default setfacl -Rdm user:apache:rx /srv/git setfacl -Rm user:apache:rx /srv/git Where ``/srv/git`` is the home of your gitolite user (which will thus need to be adjusted for your configuration). * Set up the configuration file of pagure This is an important step which concerns the file ``/etc/pagure/pagure.cfg``. If you have installed pagure by RPM, this file is already there, otherwise you can find an example one in the sources at: ``files/pagure.cfg.sample`` that you will have to copy to the right location. Confer the ``Configuration`` section of this documentation for a full explanation of all the options of pagure. * Create the database You first need to create the database itself. For this, since pagure can work with: `PostgreSQL `_, `MySQL `_ or `MariaDB `_, we would like to invite you to consult the documentation of your database system for this operation. Once you have specified in the configuration file the to url used to connect to the database, and create the database itself, you can now create the tables, the database scheme. To create the database tables, you need to run the script ``/usr/share/pagure/pagure_createdb.py`` and specify it the configuration file to use via an environment variable. For example: :: PAGURE_CONFIG=/etc/pagure/pagure.cfg python /usr/share/pagure/pagure_createdb.py This will tell ``/usr/share/pagure/pagure_createdb.py`` to use the database information specified in the file ``/etc/pagure/pagure.cfg``. .. warning:: Pagure's default configuration is using sqlite. This is fine for development purpose but not for production use as sqlite does not support all the operations needed when updating the database schema. Do use PostgreSQL, MySQL or MariaDB in production. * Stamp the alembic revision For changes to existing tables, we rely on `Alembic `_. It uses `revisions` to perform the upgrades, but to know which upgrades are needed and which are already done, the current revision needs to be saved in the database. This will allow alembic to know apply the new revision when running it. You can save the current revision in the database using the following command: :: cd /etc/pagure alembic stamp $(alembic heads |awk '{ print $1 }') The ``cd /etc/pagure`` is needed as the command must be run in the folder where the file ``alembic.ini`` is. This file contains two important pieces of information: * ``sqlalchemy.url`` which is the URL used to connect to the database, likely the same URL as the one in ``pagure.cfg``. * ``script_location`` which is the path to the ``versions`` folder containing all the alembic migration files. The ``alembic stamp`` command is the one actually saving the current revision into the database. This current revision is found using ``alembic heads`` which returns the most recent revision found by alembic, and since the database was just created, it is at the latest revision. Set up virus scannining ----------------------- Pagure can automatically scan uploaded attachments for viruses using Clam. To set this up, first install clamav-data-empty, clamav-server, clamav-server-systemd and clamav-update. Then edit /etc/freshclam.conf, removing the Example line and run freshclam once to get an up to date database. Copy /usr/share/doc/clamav-server/clamd.conf to /etc/clamd.conf and edit that too, again making sure to remove the Example line. Make sure to set LocalSocket to a file in a directory that exists, and set User to an existing system user. Then start the clamd service and set VIRUS_SCAN_ATTACHMENTS = True in the Pagure configuration.