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[Unit]
Description=Named network namespace %I
Documentation=https://github.com/Jamesits/systemd-named-netns
After=network-pre.target
Before=network.target network-online.target
[Install]
WantedBy=network-online.target
WantedBy=multi-user.target
[Service]
Type=oneshot
RemainAfterExit=yes
# precaution
ExecStartPre=-/usr/bin/env ip netns delete %I
# set up netns and bind it to this service
ExecStart=/usr/bin/flock --no-fork -- /var/run/netns.lock /usr/bin/env ip netns add %I
ExecStart=/usr/bin/env ip link add veth%I type veth peer vethpeer%I netns %I
ExecStart=/usr/bin/env ip link set veth%I up
ExecStart=/usr/bin/env ip netns exec %I ip link set vethpeer%I name eth0
ExecStart=/usr/bin/env ip netns exec %I ip link set lo up
ExecStart=/usr/bin/env ip netns exec %I ip link set eth0 up
# remove the netns
ExecStop=/usr/bin/env ip link del veth%I
ExecStop=/usr/bin/env ip netns delete %I
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