== Installing debshots
=== Prepare PostgreSQL database server and user (ident-based authentication)
apt install postgresql
su - postgres
createuser -d debshots
createdb -O debshots -E UTF8 -T template0 debshots
=== Create an application user
adduser debshots
Allow the user to parse access log files from Nginx:
adduser debshots adm
su - debshots
=== Install the required Ruby version using rbenv
https://github.com/rbenv/rbenv
git clone https://github.com/rbenv/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
# Load rbenv automatically by appending
# the following to ~/.bashrc:
eval "$(rbenv init -)"
https://github.com/rbenv/ruby-build#readme
git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
=== Get the application
Clone the debshots Git repository.
=== Install the Ruby dependencies
rbenv install
echo "gem: --no-rdoc --no-ri" > ~/.gemrc
gem install bundler
bundle install --deployment
=== Copy screenshots and database from the former live website
scp screenshots.debian.net:debshots-screenshots.tar .
tar -C public/ -xvf debshots-screenshots.tar
scp screenshots.debian.net:debshots.sql .
psql debshots < debshots.sql
Switch to production environment:
export RAILS_ENV=production
Migrate database:
bundle exec rake db:migrate RAILS_ENV=production
(config/database.yml: production: user/password/host must be commented out)
Convert screenshots to new format (paperclip):
bundle exec rake debshots:screenshots_to_paperclip RAILS_ENV=production
Remove old screenshots directory structure:
rm -r public/live
Render the assets:
bundle exec rake assets:precompile RAILS_ENV=production
Test the application:
bundle exec rails s -b 0.0.0.0 -e production
http://...:3000/
Create a user for moderation:
bundle exec rails c -e production
user = User.create(realname: 'Christoph Haas', password: 'foobartest', email: 'email@christoph-haas.de')
user.save!
Tidy up the screenshot data:
bundle exec rake debshots:remove_broken_screenshots
bundle exec rake debshots:remove_duplicate_images
Import new package information:
bundle exec rake debshots:list_deb_repos
bundle exec rake debshots:update_from_deb_repos
bundle exec debshots:update_longdescription_from_deb_repos
=== Install passenger to run the application behind nginx
https://www.phusionpassenger.com/library/walkthroughs/deploy/ruby/ownserver/nginx/oss/jessie/install_passenger.html
Example nginx vhost config:
##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##
#proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=assets:768m use_temp_path=off;
#add_header X-Cache-Status $upstream_cache_status;
#add_header X-Runtime 42;
more_clear_headers 'X-Runtime';
more_clear_headers 'X-Powered-By';
more_clear_headers 'Server';
server_tokens off;
#passenger_show_version_in_header off;
#log_format proxy '[$time_local] Cache: $upstream_cache_status $upstream_addr $upstream_response_time $status $bytes_sent $proxy_add_x_forwarded_for $request_uri "$http_referer" "$http_user_agent"';
#access_log /var/log/nginx/debshots-access.log proxy;
# Default server configuration
#
#passenger_log_level 5;
server {
listen 85.25.83.22:80 default_server;
#listen 80 default_server;
#listen [::]:80 default_server;
# SSL configuration
#
# listen 443 ssl default_server;
# listen [::]:443 ssl default_server;
#
# Self signed certs generated by the ssl-cert package
# Don't use them in a production server!
#
# include snippets/snakeoil.conf;
passenger_enabled on;
passenger_ruby /home/debshots/.rbenv/versions/2.3.1/bin/ruby;
#passenger_pass_header X-Accel-Redirect;
#proxy_cache_methods GET HEAD;
root /home/debshots/debshots/public;
# Add index.php to the list if you are using PHP
#index index.html index.htm index.nginx-debian.html;
server_name _;
#proxy_cache assets;
#add_header X-Cache-Status $upstream_cache_status;
#proxy_ignore_headers Cache-Control;
#add_header X-Debian rocks;
location /assets/ {
alias /home/debshots/debshots/public/assets/;
expires 1h;
#include debshots_params;
add_header X-Coffee assets;
add_header Cache-Control public;
}
location /logo/ {
alias /home/debshots/debshots/public/logo/;
expires 1h;
add_header X-Coffee logo;
add_header Cache-Control public;
}
location /screenshots/ {
alias /home/debshots/debshots/public/screenshots/;
expires max;
add_header X-Coffee screenshots;
add_header Cache-Control public;
}
location /images/ {
alias /home/debshots/debshots/public/images/;
expires 1h;
add_header X-Coffee images;
add_header Cache-Control public;
}
# Send thumbnails using X-Sendfile / X-Accel-Redirect
# The correct thumbnail is computed by the Rails application so it cannot be served directly.
location /thumbnail/ {
expires 1d;
add_header X-Coffee thumbnail;
add_header Cache-Control public;
passenger_set_header X-Sendfile-Type "X-Accel-Redirect";
passenger_env_var HTTP_X_ACCEL_MAPPING /home/debshots/debshots/public/=/__send_file_accel/;
passenger_pass_header X-Accel-Redirect;
}
# Send public assets using X-Sendfile / X-Accel-Redirect (e.g. public/images/dummy/...)
location /public/ {
expires 1h;
add_header X-Coffee public;
add_header Cache-Control public;
passenger_set_header X-Sendfile-Type "X-Accel-Redirect";
passenger_env_var HTTP_X_ACCEL_MAPPING /home/debshots/debshots/public/=/__send_file_accel/;
passenger_pass_header X-Accel-Redirect;
}
location /__send_file_accel/ {
internal;
alias /home/debshots/debshots/public/;
}
}
== Supported URL paths (aka routes)
/screenshots/:package_inital/:package/:(id)_:size.png
* package = name of the package
* id = numerical ID of the screenshot
* size = "large" or "small"
* Returns a PNG image of a screenshot
* Should be served as a static asset
/image/:(id)_:size.png
* id = numerical ID of the screenshot
* size = "large" or "small"
* Returns a PNG image of a screenshot
* Usually used for unapproved images that should just be shown to the uploader
/about
* Return an informational HTML page
/packages
* Return a list of packages with pagination
/packages/with_screenshots
* Return a list of packages with pagination
* Select only those packages that have screenshots.
/packages/without_screenshots
* Return a list of packages with pagination
* Select only those packages that do not have screenshots.
/packages/games_without_screenshots (deprecated)
* Return a list of packages with pagination
* Select only those packages that belong to Debian's "games" section
/json/packages
* Return a JSON data structure of all packages
/json/screenshots
* Return a JSON data structure containing packages and screenshots
/json/packages-without-screenshots
* Return a JSON data structure of those packages that do not have any screenshots
/packages/moderate
* Return a HTML page showing packages that need moderation
* Must only be available to logged in moderators
/upload
* Return a HTML page containing an upload form for new screenshots
/guidelines (deprecated)
* Return a HTML page showing general guidelines for creating screenshots
* Should just redirect to the /upload page
/upload/:package
* ??
/uploadfile
* ??
/login
* Show a login form
/logout
* Logout the user by invalidating the cookie session.
/package/:package
* Show details of a certain package
/json/package/:package
* Return a JSON data structure containing details of a certain package
/thumbnail/:package
/thumbnail-404/:package (deprecated)
* Return a small (160x120 pixel) PNG screenshot file of a package
* If the package does not have any screenshots then return a 404 code
/thumbnail-with-version/:package/:version
* Return a small (160x120 pixel) PNG screenshot file of a package
* If the package does not have any screenshots then return a 404 code
* Prefer screenshots of a certain version
/screenshot/:package
/screenshot-404/:package (deprecated)
* Return a large (320x240 pixel) PNG screenshot file of a package
* If the package does not have any screenshots then return a 404 code
/screenshot-with-version/:package/:version
* Return a large (320x240 pixel) PNG screenshot file of a package
* If the package does not have any screenshots then return a 404 code
* Prefer screenshots of a certain version
/delete_screenshot/:screenshot
* Users: request deletion of a screenshot
* Moderators: delete a screenshot
/approve_screenshot/:screenshot
* Users: 403
* Moderators: approve a screenshot
/keep_screenshot/:screenshot
* Users: 403
* Moderators: re-approve a screenshot that was requested for deletion
== Cron jobs
Parse Nginx access logs to count the number of visits of each package:
RAILS_ENV=production bundle exec rake debshots:accesslog2visits[/var/log/nginx/cache-access.log.1]