https://github.com/rootless-containers/rootlesskit/releases/tag/v2.0.0
=== Pasta ===
RootlessKit v2 adds the support for pasta (https://passt.top/passt/).
Pasta is similar to slirp4netns but its port forwarder achieves better
throughput than slirp4netns port driver.
It is still not faster than RootlessKit's `builtin` port driver, but unlike the
`builtin` port driver, pasta can retain source IP address information.
Network driver | Port driver | Net throughput | Port throughput | Src IP | No SUID | Note
---------------|----------------|----------------|-----------------|--------|---------|--------------------------------------------
slirp4netns | builtin | Slow | Fast ✅ | ❌ | ✅ | Default in typical setup
vpnkit | builtin | Slow | Fast ✅ | ❌ | ✅ | Default when slirp4netns is not installed
slirp4netns | slirp4netns | Slow | Slow | ✅ | ✅ |
**pasta** | **implicit** | Slow | Fast ✅ | ✅ | ✅ | Experimental
lxc-user-nic | builtin | Fast ✅ | Slow | ❌ | ❌ | Experimental
(bypass4netns) | (bypass4netns) | Fast ✅ | Fast ✅ | ✅ | ✅ | (Not integrated to RootlessKit)
=== Detach-netns ===
Aside from pasta, RootlessKit v2 also brings the support for
"detach-netns" mode, which leaves the runtime in the host network namespace to
eliminate the slirp overhead for pull/push and to allow accessing the "real"
127.0.0.1.
See containerd/nerdctl PR 2723 for how detach-netns is being adopted in
nerdctl v2.
Integrating detach-netns into Docker/Moby will need an extra work and will be
deferred to Docker v26 (or later).
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Commit 0b1c1877c5 updated the version in
hack/dockerfile/install/rootlesskit.installer, but forgot to update the
version in Dockerfile.
Also updating both to use a tag, instead of commit. While it's good to pin by
an immutable reference, I think it's reasonably safe to use the tag, which is
easier to use, and what we do for other binaries, such as runc as well.
Full diff: https://github.com/rootless-containers/rootlesskit/compare/v1.1.0...v1.1.1
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The golangci-lint, gotestsum, shfmt, and vndr utilities should generally
be ok to be pinned by version instead of a specific sha. Also rename
the corresponding env-vars / build-args accordingly:
- GOLANGCI_LINT_COMMIT -> GOLANGCI_LINT_VERSION
- GOTESTSUM_COMMIT -> GOTESTSUM_VERSION
- SHFMT_COMMIT -> SHFMT_VERSION
- VNDR_COMMIT -> VNDR_VERSION
- CONTAINERD_COMMIT -> CONTAINERD_VERSION
- RUNC_COMMIT -> RUNC_VERSION
- ROOTLESS_COMMIT -> ROOTLESS_VERSION
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Since rootlesskit removed vendor folder, building it has to rely on go mod.
Dockerfile in docker-ce-packaging uses GOPROXY=direct, which makes "go mod"
commands use git to fetch modules. "go mod" in Go versions before 1.14.1 are
incompatible with older git versions, including the version of git that ships
with CentOS/RHEL 7 (which have git 1.8), see golang/go#38373
This patch switches rootlesskit install script to set GOPROXY to
https://proxy.golang.org so that git is not required for downloading modules.
Once all our code has upgraded to Go 1.14+, this workaround should be
removed.
Signed-off-by: Tibor Vass <tibor@docker.com>
full diff: https://github.com/rootless-containers/rootlesskit/compare/v0.13.1...v0.14.0
v0.14.0 Changes (since v0.13.2)
--------------------------------------
- CLI: improve --help output
- API: support GET /info
- Port API: support specifying IP version explicitly ("tcp4", "tcp6")
- rootlesskit-docker-proxy: support libnetwork >= 20201216 convention
- Allow vendoring with moby/sys/mountinfo@v0.1.3 as well as @v0.4.0
- Remove socat port driver
- socat driver has been deprecated since v0.7.1 (Dec 2019)
- New experimental flag: --ipv6
- Enables IPv6 routing (slirp4netns --enable-ipv6). Unrelated to port driver.
v0.13.2
--------------------------------------
- Fix cleaning up crashed state dir
- Update Go to 1.16
- Misc fixes
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
v0.13.1
- Refactor `ParsePortSpec` to handle IPv6 addresses, and improve validation
v0.13.0
- `rootlesskit --pidns`: fix propagating exit status
- Support cgroup2 evacuation, e.g., `systemd-run -p Delegate=yes --user -t rootlesskit --cgroupns --pidns --evacuate-cgroup2=evac --net=slirp4netns bash`
v0.12.0
- Port forwarding API now supports setting `ChildIP`
- The `vendor` directory is no longer included in this repo. Run `go mod vendor` if you need
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Support cgroup as in Rootless Podman.
Requires cgroup v2 host with crun.
Tested with Ubuntu 19.10 (kernel 5.3, systemd 242), crun v0.12.1.
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>
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>
