flatpak-override(1) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | COLOPHON

FLATPAK OVERRIDE(1)         flatpak override         FLATPAK OVERRIDE(1)

NAME         top

       flatpak-override - Override application requirements

SYNOPSIS         top

       flatpak override [OPTION...] [APP]

DESCRIPTION         top

       Overrides the application specified runtime requirements. This
       can be used to grant a sandboxed application more or less
       resources than it requested.

       By default the application gets access to the resources it
       requested when it is started. But the user can override it on a
       particular instance by specifying extra arguments to flatpak run,
       or every time by using flatpak override.

       If the application id is not specified then the overrides affect
       all applications, but the per-application overrides can override
       the global overrides.

       Unless overridden with the --user or --installation options, this
       command changes the default system-wide installation.

OPTIONS         top

       The following options are understood:

       -h, --help
           Show help options and exit.

       --user
           Update a per-user installation.

       --system
           Update the default system-wide installation.

       --installation=NAME
           Updates a system-wide installation specified by NAME among
           those defined in /etc/flatpak/installations.d/. Using
           --installation=default is equivalent to using --system.

       --share=SUBSYSTEM
           Share a subsystem with the host session. This overrides the
           Context section from the application metadata.  SUBSYSTEM
           must be one of: network, ipc. This option can be used
           multiple times.

       --unshare=SUBSYSTEM
           Don't share a subsystem with the host session. This overrides
           the Context section from the application metadata.  SUBSYSTEM
           must be one of: network, ipc. This option can be used
           multiple times.

       --socket=SOCKET
           Expose a well-known socket to the application. This overrides
           to the Context section from the application metadata.  SOCKET
           must be one of: x11, wayland, fallback-x11, pulseaudio,
           system-bus, session-bus, ssh-auth, pcsc, cups. This option
           can be used multiple times.

       --nosocket=SOCKET
           Don't expose a well-known socket to the application. This
           overrides to the Context section from the application
           metadata.  SOCKET must be one of: x11, wayland, fallback-x11,
           pulseaudio, system-bus, session-bus, ssh-auth, pcsc, cups.
           This option can be used multiple times.

       --device=DEVICE
           Expose a device to the application. This overrides to the
           Context section from the application metadata.  DEVICE must
           be one of: dri, kvm, shm, all. This option can be used
           multiple times.

       --nodevice=DEVICE
           Don't expose a device to the application. This overrides to
           the Context section from the application metadata.  DEVICE
           must be one of: dri, kvm, shm, all. This option can be used
           multiple times.

       --allow=FEATURE
           Allow access to a specific feature. This updates the
           [Context] group in the metadata.  FEATURE must be one of:
           devel, multiarch, bluetooth, canbus. This option can be used
           multiple times.

           See flatpak-build-finish(1) for the meaning of the various
           features.

       --disallow=FEATURE
           Disallow access to a specific feature. This updates the
           [Context] group in the metadata.  FEATURE must be one of:
           devel, multiarch, bluetooth, canbus. This option can be used
           multiple times.

       --filesystem=FILESYSTEM
           Allow the application access to a subset of the filesystem.
           This overrides to the Context section from the application
           metadata.  FILESYSTEM can be one of: home, host, host-os,
           host-etc, xdg-desktop, xdg-documents, xdg-download,
           xdg-music, xdg-pictures, xdg-public-share, xdg-templates,
           xdg-videos, xdg-run, xdg-config, xdg-cache, xdg-data, an
           absolute path, or a homedir-relative path like ~/dir or paths
           relative to the xdg dirs, like xdg-download/subdir. The
           optional :ro suffix indicates that the location will be
           read-only. The optional :create suffix indicates that the
           location will be read-write and created if it doesn't exist.
           This option can be used multiple times. See the "[Context]
           filesystems" list in flatpak-metadata(5) for details of the
           meanings of these filesystems.

       --nofilesystem=FILESYSTEM
           Remove access to the specified subset of the filesystem from
           the application. This overrides to the Context section from
           the application metadata.  FILESYSTEM can be one of: home,
           host, host-os, host-etc, xdg-desktop, xdg-documents,
           xdg-download, xdg-music, xdg-pictures, xdg-public-share,
           xdg-templates, xdg-videos, an absolute path, or a
           homedir-relative path like ~/dir. This option can be used
           multiple times.

       --add-policy=SUBSYSTEM.KEY=VALUE
           Add generic policy option. For example,
           "--add-policy=subsystem.key=v1 --add-policy=subsystem.key=v2"
           would map to this metadata:

               [Policy subsystem]
               key=v1;v2;

           This option can be used multiple times.

       --remove-policy=SUBSYSTEM.KEY=VALUE
           Remove generic policy option. This option can be used
           multiple times.

       --env=VAR=VALUE
           Set an environment variable in the application. This
           overrides to the Context section from the application
           metadata. This option can be used multiple times.

       --unset-env=VAR
           Unset an environment variable in the application. This
           overrides the unset-environment entry in the [Context] group
           of the metadata, and the [Environment] group. This option can
           be used multiple times.

       --env-fd=FD
           Read environment variables from the file descriptor FD, and
           set them as if via --env. This can be used to avoid
           environment variables and their values becoming visible to
           other users.

           Each environment variable is in the form VAR=VALUE followed
           by a zero byte. This is the same format used by env -0 and
           /proc/*/environ.

       --own-name=NAME
           Allow the application to own the well-known name NAME on the
           session bus. This overrides to the Context section from the
           application metadata. This option can be used multiple times.

       --talk-name=NAME
           Allow the application to talk to the well-known name NAME on
           the session bus. This overrides to the Context section from
           the application metadata. This option can be used multiple
           times.

       --no-talk-name=NAME
           Don't allow the application to talk to the well-known name
           NAME on the session bus. This overrides to the Context
           section from the application metadata. This option can be
           used multiple times.

       --system-own-name=NAME
           Allow the application to own the well known name NAME on the
           system bus. If NAME ends with .*, it allows the application
           to own all matching names. This overrides to the Context
           section from the application metadata. This option can be
           used multiple times.

       --system-talk-name=NAME
           Allow the application to talk to the well known name NAME on
           the system bus. If NAME ends with .*, it allows the
           application to talk to all matching names. This overrides to
           the Context section from the application metadata. This
           option can be used multiple times.

       --system-no-talk-name=NAME
           Don't allow the application to talk to the well known name
           NAME on the system bus. If NAME ends with .*, it allows the
           application to talk to all matching names. This overrides to
           the Context section from the application metadata. This
           option can be used multiple times.

       --persist=FILENAME
           If the application doesn't have access to the real homedir,
           make the (homedir-relative) path FILENAME a bind mount to the
           corresponding path in the per-application directory, allowing
           that location to be used for persistent data. This overrides
           to the Context section from the application metadata. This
           option can be used multiple times.

       --reset
           Remove overrides. If an APP is given, remove the overrides
           for that application, otherwise remove the global overrides.

       --show
           Shows overrides. If an APP is given, shows the overrides for
           that application, otherwise shows the global overrides.

       -v, --verbose
           Print debug information during command processing.

       --ostree-verbose
           Print OSTree debug information during command processing.

EXAMPLES         top

       $ flatpak override --nosocket=wayland org.gnome.gedit

       $ flatpak override --filesystem=home org.mozilla.Firefox

SEE ALSO         top

       flatpak(1), flatpak-run(1)

COLOPHON         top

       This page is part of the flatpak (a tool for building and
       distributing desktop applications on Linux) project.  Information
       about the project can be found at ⟨http://flatpak.org/⟩.  It is
       not known how to report bugs for this man page; if you know,
       please send a mail to man-pages@man7.org.  This page was obtained
       from the project's upstream Git repository
       ⟨https://github.com/flatpak/flatpak⟩ on 2021-04-01.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2021-03-31.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

flatpak                                              FLATPAK OVERRIDE(1)

Pages that refer to this page: flatpak(1)flatpak-config(1)flatpak-run(1)flatpak-metadata(5)