Dear systemd folks,
Due to historical reasons, in our environment we have a configuration
file with the network device name and the to be assigned IP address:
$ more /etc/local/mxhost.conf
MX_NETDEV=net02
MX_IPADDR=141.14.18.X
Then a custom service unit `network.service` [1] configures the network
with the configuration file as environment file.
[Unit]
Description=Network Connectivity
DefaultDependencies=no
[Service]
EnvironmentFile=/etc/local/mxhost.conf
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/sbin/mxnetctl start
ExecStart=/sbin/ip addr add ${MX_IPADDR}/20 broadcast 141.14.31.255
dev ${MX_NETDEV}
ExecStart=/sbin/ip link set up dev ${MX_NETDEV}
ExecStart=/sbin/ip route add default via 141.14.16.X
ExecStop=/sbin/ip addr del ${MX_IPADDR}/20 dev ${MX_NETDEV}
StandardOutput=syslog
[Install]
WantedBy=network.target
Wanting to use systemd-network but keeping local device configuration in
`/etc/local` is there an easy way? systemd.network(5) does not say
anything about, that environment variables could be used.
If that does not work, do you have another suggestion? Possible, but not
nice, solutions, I came up with:
1. Use a generator to create .network files from `/etc/local/mxhost.conf`.
2. Convert `/etc/local/mxhost.conf` manually to
`/etc/local/mxhost.network` and add a symbolic link from
`/etc/systemd/network` to that file.
Kind regards,
Paul
[1]:
https://github.molgen.mpg.de/mariux64/mxtools/blob/master/misc_systemd_units/network.service
[2]: https://www.freedesktop.org/software/systemd/man/systemd.network.html
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