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WordPress

We run two quite different types of WordPress installations:

  • The blogs servers host blog.jquery.com, blog.jqueryui.com and blog.jquerymobile.com. These are edited directly via the WordPress admin interface by humans who log in with their own accounts.
  • The docs sites host everything else. This is a collection of about 20 sites that are automatically provisioned from Git repositories using the grunt-jquery-content system.

All sites have their WordPress settings managed by Puppet, and all sites are powered by a locally running MariaDB instance, and backed up daily to Tarsnap.

WordPress versions

WordPress "auto upgrades" are enabled. If you want to pin a specific version or rollback to an older version, set one of these hiera keys in common.yaml to the version you want to use:

profile::wordpress::blogs::wordpress_version: ''
profile::wordpress::docs::wordpress_version: ''

You might also need to restore the database from a backup if the older version had a different database schema.

Doc sites

URL Deployment Staging
https://api.jquery.com/ semver tags https://stage.api.jquery.com/
https://api.jquerymobile.com/ main branch https://stage.api.jquerymobile.com/
https://api.jquerymobile.com/1.3/ 1-3 branch https://stage.api.jquerymobile.com/1.3/
https://api.jquerymobile.com/1.4/ 1-4 branch https://stage.api.jquerymobile.com/1.4/
https://api.jqueryui.com/ main branch https://stage.api.jqueryui.com/
https://api.jqueryui.com/1.8/ 1-8 branch https://stage.api.jqueryui.com/1.8/
https://api.jqueryui.com/1.9/ 1-9 branch https://stage.api.jqueryui.com/1.9/
https://api.jqueryui.com/1.10/ 1-10 branch https://stage.api.jqueryui.com/1.10/
https://api.jqueryui.com/1.11/ 1-11 branch https://stage.api.jqueryui.com/1.11/
https://api.jqueryui.com/1.12/ 1-12 branch https://stage.api.jqueryui.com/1.12/
https://api.jqueryui.com/1.13/ 1-13 branch https://stage.api.jqueryui.com/1.13/
https://brand.jquery.org/ main branch https://stage.brand.jquery.org/
https://contribute.jquery.org/ main branch https://stage.contribute.jquery.org/
https://jquery.com/ semver tags https://stage.jquery.com/
https://jquery.org/ main branch https://stage.jquery.org/
https://jquerymobile.com/ main branch https://stage.jquerymobile.com/
https://jqueryui.com/ semver tags https://stage.jqueryui.com/
https://learn.jquery.com/ semver tags https://stage.learn.jquery.com/
https://meetings.jquery.org/ main branch https://stage.meetings.jquery.org/
https://releases.jquery.com/ main branch https://stage.releases.jquery.com/

Builder hosts

The docs sites are provisioned by the builder hosts. These run node-notifier to pick up changes to the sites and then run Grunt to perform the upgrade. All of the configuration (including user management) is handled by Puppet.

Control flow

  1. Each doc site has an associated Git repository, such as api.jquery.com.
  2. An organization-wide webhook notifies the builder and wp hosts of commits and published tags. The hooks are secured with secret tokens and SSL-verification.
  3. The builder hosts are provisioned with role::docs::builder by Puppet. Sites are defined by docs_sites in hieradata/common.yaml. The builder host uses jquery/notifier to receive these hooks. In the staging environment, sites generally build on each commit to the main branch. In production, most sites react only to semver-formatted tags.
  4. Upon a relevant commit or tag, a shell script is executed on the builder host, which checks out the relevant commit hash, and uses grunt-jquery-content to build the WordPress pages, and deployes them via WordPress RPC to the wp hosts.
  5. The wp hosts contain several standalone WordPress installations (Nginx, php-fpm, MariaDB). Our themes and plugins are managed in the jquery-wp-content.git repository. Changes to jquery-wp-content are automatically deployed on every main branch commit, to both production and staging wp hosts.
  6. The CDN for most doc sites is Cloudflare, except for releases.jquery.com which is behind Fastly (matching code.jquery.com). See also cdn.md.

Debugging builder notifier

To check for any system problems with the notifier that receives webhooks, or the shell script that builds and deploys the site, ssh to a builder host, and run the following command:

# Staging    : ssh builder-XX.stage.ops.jquery.net
# Production : ssh builder-XX.ops.jquery.net

$ sudo journalctl -u notifier -f -n100

Manual build

$ ssh builder-XX.stage.ops.jquery.net
$ cd /srv/builder/jquerymobile_com/
$ sudo -u builder git log -1

$ sudo -u builder builder-do-update /srv/builder/jquerymobile_com/

# …
# node_modules/.bin/grunt deploy
# …
# Running "build-posts:page" (build-posts) task
# …
# Running "wordpress-validate" task
# …
# Running "wordpress-sync" task
# …

Blog sites

The canonical RSS feed is https://blog.jquery.com/feed/, but subscribers also use the following aliases:

Blog accounts

The WordPress hosts can't send mail, so a normal password reset can't be done that way. Instead it's possible to reset a lost password with the wp CLI utility:

  1. Log in to the active wpblogs host
  2. Navigate to the correct directory under /srv/wordpress/sites/, for example /srv/wordpress/sites/jquery/ for blog.jquery.com.
  3. Run sudo -u www-data wp user reset-password <USERNAME> --skip-email --show-password
  4. Log in via wp-admin, and maybe set a new password other than the randomly generated one?

Backups

We keep Tarsnap backups for the databases and (for blogs) uploads. See the backup.md file for details.