This simplifies `dockerd-rootless.sh` by removing the workaround for
`CDI: Error associated with spec file /etc/cdi: failed to monitor for changes: permission denied`.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
When DOCKERD_ROOTLESS_ROOTLESSKIT_MTU is not set, and ...
- DOCKERD_ROOTLESS_ROOTLESSKIT_NET is not set and slirp4netns
is selected, MTU defaults to 65520.
- DOCKERD_ROOTLESS_ROOTLESSKIT_NET=slirp4netns, MTU defaults
to 1500.
Change the logic so that, however slirp4netns is selected, MTU
defaults to 65520.
Signed-off-by: Rob Murray <rob.murray@docker.com>
When dockerd is executed with the `dockerd-rootless.sh` script, make
/etc/cdi and /var/run/cdi available to the daemon if they exist.
This makes it possible to enable the CDI integration in rootless mode.
Fixes: #47676
Signed-off-by: Rafael Fernández López <ereslibre@ereslibre.es>
This should allow to enable host loopback by setting
DOCKERD_ROOTLESS_ROOTLESSKIT_DISABLE_HOST_LOOPBACK to false,
defaults true.
Signed-off-by: serhii.n <serhii.n@thescimus.com>
The "builtin" port driver was marked as "Slow" in the row for the lxc-user-nic
network driver, while it was marked as "Fast" in other rows.
It had to be consistently marked as "Fast" regardless to the network driver.
It is still not as fast as rootful.
Follow-up to PR 47076
Fixes: b5a5ecf4a3
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
openSUSE Tumbleweed was facing "x509: certificate signed by unknown authority" error,
as `/etc/ssl/ca-bundle.pem` is provided as a symlink to `../../var/lib/ca-certificates/ca-bundle.pem`,
which was not supported by `rootlesskit --copy-up=/etc` .
See rootless-containers/rootlesskit issues 225
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Previously, running dockerd-rootless.sh on SELinux-enabled hosts
was failing with "can't open lock file /run/xtables.lock: Permission denied" error.
(issue 41230).
This commit avoids hitting the error by relabeling /run in the RootlessKit child.
The actual /run on the parent is unaffected.
e6fc34b71a/libpod/networking_linux.go (L396-L401)
Tested on Fedora 34
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Starting `dockerd-rootless.sh` checks that `$HOME` is writeable, but does not
require it to be so.
Make the check more precise, and check that it actually exists and is a
directory.
Signed-off-by: Hugo Osvaldo Barrera <hugo@barrera.io>
- Using "/go/" redirects for some topics, which allows us to
redirect to new locations if topics are moved around in the
documentation.
- Updated some old URLs to their new location.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
`dockerd-rootless.sh install` is a common typo of `dockerd-rootless-setuptool.sh install`.
Now `dockerd-rootless.sh install` shows human-readable error.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
The default port driver "builtin" might not be always preferrable as it
drops src IP information: https://github.com/containers/libpod/pull/6324
Now the port driver can be changed to "slirp4netns" via the environment
variable `DOCKERD_ROOTLESS_ROOTLESSKIT_PORT_DRIVER`.
It is still recommended to use the default "builtin" driver.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Close#40484
Note that the support for cgroup v2 isn't ready for production yet,
regardless to rootful or rootless.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
When slirp4netns v0.4.0+ is used, now slirp4netns is hardened using
mount namespace ("sandbox") and seccomp to mitigate potential
vulnerabilities.
bump up rootlesskit: 2fcff6ceae...791ac8cb20
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Killing the shell script process does not kill the forked process.
This commit switches to `exec` so that the executed process can be
easily killed.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
lxc-user-nic can eliminate slirp overhead but needs /etc/lxc/lxc-usernet to be configured for the current user.
To use lxc-user-nic, $DOCKERD_ROOTLESS_ROOTLESSKIT_NET=lxc-user-nic also needs to be set.
This commit also bumps up RootlessKit from v0.3.0 to v0.4.0:
70e0502f32...e92d5e772e
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Now `docker run -p` ports can be exposed to the host namespace automatically when `dockerd-rootless.sh` is launched with
`--userland-proxy --userland-proxy-path $(which rootlesskit-docker-proxy)`.
This is akin to how Docker for Mac/Win works with `--userland-proxy-path=/path/to/vpnkit-expose-port`.
The port number on the host namespace needs to be set to >= 1024.
SCTP ports are currently unsupported.
RootlessKit changes: 7bbbc48a6f...ed26714429
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Please refer to `docs/rootless.md`.
TLDR:
* Make sure `/etc/subuid` and `/etc/subgid` contain the entry for you
* `dockerd-rootless.sh --experimental`
* `docker -H unix://$XDG_RUNTIME_DIR/docker.sock run ...`
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
