On 10/10/24 7:37 AM, Sidney Ramos Neto wrote:
Dear all,

Unable to enable 'branding.jar' extension to customize/brand Guacamole login screen.

When trying to deploy Guacamole through the compose file, the error */"cp: ‘/opt/guacamole/./extensions’: Operation not supported"/* is returned in the guacamole service.

Docker Compose:
...
     environment:
       GUACAMOLE_HOME: /opt/guacamole
...
     volumes:
        - . /extensions:/opt/guacamole/extensions


The "/opt/guacamole" path is already used by the image for its own binaries, so specifying it as the GUACAMOLE_HOME template is likely causing trouble. You will need to use a different path that isn't already being used by the image for something else.

- Mike

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