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rootless: Support pasta driver detection #51143

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rootless: Support pasta driver detection#51143
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area/rootlessRootless Modekind/enhancementEnhancements are not bugs or new features but can improve usability or performance.
@vvoland

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@vvoland
vvoland
opened on Oct 8, 2025

Description

slirp4netns is deprecated in RHEL 10 and will be removed in future version in favor of pasta.

dockerd-rootless.sh should be adjusted to pick up the pasta driver if its installed:

moby/contrib/dockerd-rootless.sh

Lines 102 to 122 in c09d53a

if [ -z "$net" ]; then
if command -v slirp4netns > /dev/null 2>&1; then
# If --netns-type is present in --help, slirp4netns is >= v0.4.0.
if slirp4netns --help | grep -qw -- --netns-type; then
net=slirp4netns
if [ -z "$mtu" ]; then
mtu=65520
fi
else
echo "slirp4netns found but seems older than v0.4.0. Falling back to VPNKit."
fi
fi
if [ -z "$net" ]; then
if command -v vpnkit > /dev/null 2>&1; then
net=vpnkit
else
echo "Either slirp4netns (>= v0.4.0) or vpnkit needs to be installed"
exit 1
fi
fi
fi

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