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Merge pull request #40964 from AkihiroSuda/rootless-requires-slirp4netns-040-1903

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[19.03 backport] dockerd-rootless.sh: bump up slirp4netns requirement to v0.4.0
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Tibor Vass 2020-05-14 15:37:08 -07:00 committed by GitHub
commit 4d1885fb94
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1 changed files with 5 additions and 5 deletions
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10
contrib/dockerd-rootless.sh
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@ -7,7 +7,7 @@
# External dependencies:
# * newuidmap and newgidmap needs to be installed.
# * /etc/subuid and /etc/subgid needs to be configured for the current user.
# * Either one of slirp4netns (v0.3+), VPNKit, lxc-user-nic needs to be installed.
# * Either one of slirp4netns (>= v0.4.0), VPNKit, lxc-user-nic needs to be installed.
# slirp4netns is used by default if installed. Otherwise fallsback to VPNKit.
# The default value can be overridden with $DOCKERD_ROOTLESS_ROOTLESSKIT_NET=(slirp4netns|vpnkit|lxc-user-nic)
#
@ -37,27 +37,27 @@ fi
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_NET:=}"
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_MTU:=}"
# if slirp4netns v0.4.0+ is installed, slirp4netns is hardened using sandbox (mount namespace) and seccomp
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_SLIRP4NETNS_SANDBOX:=auto}"
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_SLIRP4NETNS_SECCOMP:=auto}"
net=$DOCKERD_ROOTLESS_ROOTLESSKIT_NET
mtu=$DOCKERD_ROOTLESS_ROOTLESSKIT_MTU
if [ -z $net ]; then
if which slirp4netns >/dev/null 2>&1; then
if slirp4netns --help | grep -- --disable-host-loopback; 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 does not support --disable-host-loopback. Falling back to VPNKit."
echo "slirp4netns found but seems older than v0.4.0. Falling back to VPNKit."
fi
fi
if [ -z $net ]; then
if which vpnkit >/dev/null 2>&1; then
net=vpnkit
else
echo "Either slirp4netns (v0.3+) or vpnkit needs to be installed"
echo "Either slirp4netns (>= v0.4.0) or vpnkit needs to be installed"
exit 1
fi
fi