chore: install opff test container for keycloak

docs/reports/2024-11-22-create-clone-of-opff-for-keycloak-testing.md

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+# 2024-11-15 Create clone of opff container for Keycloak testing
+
+We need a container with a test instance of Product Opener to test the new Keycloak based authentication.
+
+Instead of reinstalling a Product Opener instance from scratch (as we did for [New install of OBF on OFF2 with new generic code](.2024-04-26-off2-obf-new-install.md) ), I will clone the current opff-new clone into opff-test.
+
+In the Proxmox web interface, I clone ct 118 opff-new into 119 opff-test.
+I get the message: "unable to clone mountpoint 'mp0' (type bind) (500)"
+
+https://forum.proxmox.com/threads/unable-to-replicate-mountpoint-type-bind-500.45785/
+
+Trying to skip replication through the Proxmox web interface results in an error:
+"Permission check failed (mount point type bind is only allowed for root@pam) (403)"
+
+Editing /etc/pve/lxc/118.conf on off2 host directly instead:
+mp0: /zfs-hdd/opff,mp=/mnt/opff,replicate=0
+
+But we still get the same error when cloning.
+
+I'm going to try another way, by a doing a backup of 118 and restoring it in a new container.
+
+In the Proxmox web interface, the last backup was on 2024-10-28, so I create a new backup.
+
+