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See containerd/nerdctl issue 2818

Similar to containerd/nerdctl PR 2819

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
@AkihiroSuda AkihiroSuda added the area/rootless rootless mode label Feb 16, 2024
@AkihiroSuda AkihiroSuda added this to the v0.13.0 milestone Feb 16, 2024
@tonistiigi
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What's the behavior difference of this? If this works always then we could just use this and skip adding firewall binary to the exported image.

@AkihiroSuda
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What's the behavior difference of this?

The iptables backend directly execs iptables binary (which works fine inside the user namespace).

The firewalld backend (default, when firewalld is detected) talks to the firewalld daemon. This fails for rootless:

If this works always then we could just use this and skip adding firewall binary to the exported image.

No, this is the configuration for the firewall plugin

@tonistiigi tonistiigi merged commit 0174381 into moby:master Feb 20, 2024
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