App Environment

Apps launched by rkt have access to some basic devices and file systems as defined by the App Container spec in the OS-SPEC section.

In addition to the basic devices and file systems mandated by the App Container spec, rkt gives access to the following files.

/etc/hosts

Support for /etc/hosts is optional in the App Container spec. rkt creates it.

/etc/resolv.conf

/etc/resolv.conf is automatically prepared by rkt.

/run/systemd/journal

Since rkt v1.2.0, rkt gives access to systemd-journald's sockets in the /run/systemd/journal directory:

  • /run/systemd/journal/dev-log
  • /run/systemd/journal/socket
  • /run/systemd/journal/stdout

/dev/log

Since rkt v1.2.0, if /dev/log does not exist in the image, it will be created as a symlink to /run/systemd/journal/dev-log.