Calendar Server

sfsiegel

How would one install a Calendar server in their Opalstack account?

sean

sfsiegel that would depend on the calendar software itself.

Are you looking for something to serve CalDAV calendars that apps can connect to?

Or are you looking for a complete calendar application with it's own calendar app via the web?

sfsiegel

sean I was looking for something to serve CalDAV calendars that apps can connect to (e.g., using Apple's Calendar app).
But I would also be interested in the complete calendar application if that's possible.

sean

Ok, here we go:

Basic Calendar Server: Radicale

For a basic calendar server my choice would be Radicale. To install it:

Create a new uWSGI application in the dashboard and make a note of the app's name and port assignment: https://help.opalstack.com/article/47/managing-applications
Add the uWSGI app to a site: https://help.opalstack.com/article/52/managing-sites
SSH to the server as your app's shell user: https://help.opalstack.com/article/14/ssh-access

Install Radicale as follows:

cd ~/apps/appname
source env/bin/activate
pip install radicale
mkdir collections
# create a password file with your first calendar user, replacing
# username with the username you want to use to access the calendar
# then enter your desired password when prompted:
htpasswd -c users username

Create a file named config in the app directory, replacing NNNNN with your port assignment:

[server]
# Bind all addresses
hosts = 127.0.0.1:NNNNN
[auth]
type = htpasswd
htpasswd_filename = /home/shelluser/apps/appname/users
htpasswd_encryption = md5
[storage]
filesystem_folder = /home/shelluser/apps/appname/collections

Edit the app's uwsgi.ini to make it look like this, replacing NNNNN with your port assignment:

[uwsgi]
master = True
http-socket = 127.0.0.1:NNNNN
virtualenv = /home/shelluser/apps/appname/env/
daemonize = /home/shelluser/logs/apps/appname/uwsgi.log
pidfile = /home/shelluser/apps/appname/tmp/appname.pid
workers = 2
threads = 2
module = radicale
env = RADICALE_CONFIG=/home/shelluser/apps/appname/config

Restart the app:

./stop
sleep 3
./start

Visit the site you created in step 2 to log in as the user you created in step 4 and create your calendar. Make a note of the calendar URL.
Configure your desktop app to connect to the calendar.

Web-based calendar app: Nextcloud

You can install Nextcloud as a new app at https://my.opalstack.com/apps/ and then route it to a site.

sfsiegel

sean Thanks for your help. I tried installing Nextcloud. I completed all of your steps, but there seems to be a problem with my installation. Using the web interface for my installation, under Settings: Administration: Overview, the following errors are reported:

Your web server is not yet properly set up to allow file synchronization, because the WebDAV interface seems to be broken.
PHP does not seem to be setup properly to query system environment variables. The test with getenv("PATH") only returns an empty response. Please check the installation documentation ↗ for PHP configuration notes and the PHP configuration of your server, especially when using php-fpm.
SQLite is currently being used as the backend database. For larger installations we recommend that you switch to a different database backend. This is particularly recommended when using the desktop client for file synchronisation. To migrate to another database use the command line tool: 'occ db:convert-type', or see the documentation ↗.
The PHP memory limit is below the recommended value of 512MB.
The "Strict-Transport-Security" HTTP header is not set to at least "15552000" seconds. For enhanced security, it is recommended to enable HSTS as described in the security tips ↗.
Your web server is not properly set up to resolve "/.well-known/caldav". Further information can be found in the documentation.
Your web server is not properly set up to resolve "/.well-known/carddav". Further information can be found in the documentation.
No memory cache has been configured. To enhance performance, please configure a memcache, if available. Further information can be found in the documentation.
The PHP OPcache is not properly configured. For better performance it is recommended to use the following settings in the php.ini:
opcache.enable=1
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=10000
opcache.memory_consumption=128
opcache.save_comments=1
opcache.revalidate_freq=1
The database is missing some indexes. Due to the fact that adding indexes on big tables could take some time they were not added automatically. By running "occ db:add-missing-indices" those missing indexes could be added manually while the instance keeps running. Once the indexes are added queries to those tables are usually much faster.
Missing index "cards_abiduri" in table "oc_cards".

I'm trying to figure out what else I should do, and am wondering if something here is relevant:
https://docs.nextcloud.com/server/20/admin_manual/installation/source_installation.html#php-fpm-tips-label

or perhaps here:
https://docs.nextcloud.com/server/20/admin_manual/installation/nginx.html

-Steve

sean

sfsiegel please email support @ opalstack.com for assistance, thanks.

sean

I've updated my earlier reply to include a working setup for Nextcloud. 🙂