From Univention Wiki
UCS provides a certificate infrastructure secure communication protocols (see )
Apps may need access to the UCS certificate infrastructure or need to be aware of changes to the certificates. Starting with UCS 4.3 erratum 91 the Univention App Center provides a simple way to manage certificates inside an App.
This is simply a new action called update-certificates in the App Center which is called automatically during the installation and upgrade of Apps (but can also be executed manually) and gives Apps a simple way to gain access to certificates and to react upon changes to certificates.
When is update-certificates called?
update_certificates is automatically called during the installation and update of an App. But it can be called any time on the command line with:
# update all apps -> univention-app update-certificates # update app "abc" -> univention-app update-certificates abc *
What is being done in update-certificates?
- Every App can define a update_certificates script
- This script is executed on the UCS system (the docker Host) upon the App Center's update-certificates
# cat the UCS root CA to the App's root CA chain cat /etc/univention/ssl/ucsCA/CAcert.pem >> /opt/myapp/ca-bundle.crt service my-app-daemon restart
- The UCS root CA certificate is copied to /usr/local/share/ca-certificates/ucs.crt inside the container
- update-ca-certificates is executed inside the container (if existing)
- The UCS root CA certificate is copied to /etc/univention/ssl/ucsCA/CAcert.pem inside the container
- The docker host UCS certificate is copied to /etc/univention/ssl/docker-host-certificate/cert.pem|private.key and /etc/univention/ssl/$FQDN_DOCKER_HOST/cert.pem|private.key