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author | Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> | 2019-11-28 23:33:42 +0900 |
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committer | Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> | 2020-01-08 19:35:17 +0900 |
commit | da7595a69fc15d131c9d8123d0a165bdde4232b6 (patch) | |
tree | 57985f4d9fbc903610f31f3076011cd413d82fdf /LICENSE | |
parent | c41fd09a8da3a96bc0e58f9f29f87b9bdf30264d (diff) | |
download | podman-da7595a69fc15d131c9d8123d0a165bdde4232b6.tar.gz podman-da7595a69fc15d131c9d8123d0a165bdde4232b6.tar.bz2 podman-da7595a69fc15d131c9d8123d0a165bdde4232b6.zip |
rootless: use RootlessKit port forwarder
RootlessKit port forwarder has a lot of advantages over the slirp4netns port forwarder:
* Very high throughput.
Benchmark result on Travis: socat: 5.2 Gbps, slirp4netns: 8.3 Gbps, RootlessKit: 27.3 Gbps
(https://travis-ci.org/rootless-containers/rootlesskit/builds/597056377)
* Connections from the host are treated as 127.0.0.1 rather than 10.0.2.2 in the namespace.
No UDP issue (#4586)
* No tcp_rmem issue (#4537)
* Probably works with IPv6. Even if not, it is trivial to support IPv6. (#4311)
* Easily extensible for future support of SCTP
* Easily extensible for future support of `lxc-user-nic` SUID network
RootlessKit port forwarder has been already adopted as the default port forwarder by Rootless Docker/Moby,
and no issue has been reported AFAIK.
As the port forwarder is imported as a Go package, no `rootlesskit` binary is required for Podman.
Fix #4586
May-fix #4559
Fix #4537
May-fix #4311
See https://github.com/rootless-containers/rootlesskit/blob/v0.7.0/pkg/port/builtin/builtin.go
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
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