HowTo: Ubuntu + Docker + Nextcloud + Talk + Collabora

📑 How to
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Just in case anybody else is having the same problem with Nextcloud 23 and Collabora (Collabora not opening any document):

It seems that the developers of Collabora have changed some directory names, which makes the original 011-collabora.conf invalid.

Here is a fixed version of that file:

<VirtualHost *:80>
  ServerName office.domain.name
  ErrorLog ${APACHE_LOG_DIR}/error.log
  CustomLog ${APACHE_LOG_DIR}/access.log combined
  AllowEncodedSlashes NoDecode
  SSLProxyEngine On
  SSLProxyVerify None
  SSLProxyCheckPeerCN Off
  SSLProxyCheckPeerName Off
  ProxyPreserveHost On
  # static html, js, images, etc. served from coolwsd
  # browser is the client part of Collabora Online
  ProxyPass           /browser https://127.0.0.1:9980/browser retry=0
  ProxyPassReverse    /browser https://127.0.0.1:9980/browser
  # WOPI discovery URL
  ProxyPass           /hosting/discovery https://127.0.0.1:9980/hosting/discovery retry=0
  ProxyPassReverse    /hosting/discovery https://127.0.0.1:9980/hosting/discovery
  # Capabilities
  ProxyPass           /hosting/capabilities https://127.0.0.1:9980/hosting/capabilities retry=0
  ProxyPassReverse    /hosting/capabilities https://127.0.0.1:9980/hosting/capabilities
  # Main websocket
  ProxyPassMatch      "/cool/(.*)/ws$"      wss://127.0.0.1:9980/cool/$1/ws nocanon
  # Admin Console websocket
  ProxyPass           /cool/adminws wss://127.0.0.1:9980/cool/adminws
  # Download as, Fullscreen presentation and Image upload operations
  ProxyPass           /cool https://127.0.0.1:9980/cool
  ProxyPassReverse    /cool https://127.0.0.1:9980/cool
  # Compatibility with integrations that use the /lool/convert-to endpoint
  ProxyPass           /lool https://127.0.0.1:9980/cool
  ProxyPassReverse    /lool https://127.0.0.1:9980/cool
</VirtualHost>

<VirtualHost *:443>
  ServerName office.domain.name
  ErrorLog ${APACHE_LOG_DIR}/error.log
  CustomLog ${APACHE_LOG_DIR}/access.log combined
  SSLEngine on
  AllowEncodedSlashes NoDecode
  SSLProxyEngine On
  SSLProxyVerify None
  SSLProxyCheckPeerCN Off
  SSLProxyCheckPeerName Off
  ProxyPreserveHost On
  # static html, js, images, etc. served from coolwsd
  # browser is the client part of Collabora Online
  ProxyPass           /browser https://127.0.0.1:9980/browser retry=0
  ProxyPassReverse    /browser https://127.0.0.1:9980/browser
  # WOPI discovery URL
  ProxyPass           /hosting/discovery https://127.0.0.1:9980/hosting/discovery retry=0
  ProxyPassReverse    /hosting/discovery https://127.0.0.1:9980/hosting/discovery
  # Capabilities
  ProxyPass           /hosting/capabilities https://127.0.0.1:9980/hosting/capabilities retry=0
  ProxyPassReverse    /hosting/capabilities https://127.0.0.1:9980/hosting/capabilities
  # Main websocket
  ProxyPassMatch      "/cool/(.*)/ws$"      wss://127.0.0.1:9980/cool/$1/ws nocanon
  # Admin Console websocket
  ProxyPass           /cool/adminws wss://127.0.0.1:9980/cool/adminws
  # Download as, Fullscreen presentation and Image upload operations
  ProxyPass           /cool https://127.0.0.1:9980/cool
  ProxyPassReverse    /cool https://127.0.0.1:9980/cool
  # Compatibility with integrations that use the /lool/convert-to endpoint
  ProxyPass           /lool https://127.0.0.1:9980/cool
  ProxyPassReverse    /lool https://127.0.0.1:9980/cool
  SSLCertificateFile      /etc/ssl/certs/ssl-cert-snakeoil.pem
  SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key
</VirtualHost>

Cheers!

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