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Manouchehri/dhcpcd-namespace@.service

Created September 19, 2021 04:18
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/lib/systemd/system/dhcpcd-namespace@.service
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dhcpcd-namespace@.service
[Unit]
Description=DHCP Client Daemon with namespace
Wants=network.target
Documentation=man:dhcpcd(8)
[Service]
Type=forking
PrivateNetwork=yes
ExecStartPre=-/usr/sbin/ip netns delete %i-ns
ExecStartPre=/usr/sbin/ip netns add %i-ns
# Idea from https://muru.dev/2020/12/03/poking-pi-ii.html
ExecStartPre=-/usr/bin/ln -s /proc/1/ns/net /var/run/netns/default
ExecStartPre=/usr/bin/umount /var/run/netns/%i-ns
ExecStartPre=/usr/bin/mount --bind /proc/self/ns/net /var/run/netns/%i-ns
# ExecStartPre=/usr/sbin/ip link set %i netns %i-ns
ExecStartPre=/usr/sbin/ip netns exec default /usr/sbin/ip link set %i netns %i-ns
ExecStart=/usr/sbin/dhcpcd %i
# ExecStopPost=/usr/bin/nsenter --net=/var/run/netns/%i-ns ip link set %i netns 1
ExecStopPost=/usr/sbin/ip link set %i netns 1
Restart=always
[Install]
WantedBy=multi-user.target
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