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dhcpcd service: order before network target

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This reverts a change applied in PR #18491. When interfaces are
configured by DHCP (typical in a cloud environment), ordering after
network.target cause trouble to applications expecting some network to
be present on boot (for example, cloud-init is quite brittle when
network hasn't been configured for `cloud-init.service`) and on
shutdown (for example, collectd needs to flush metrics on shutdown).

When ordering after network.target, we ensure applications relying on
network.target won't have any network reachability on boot and
potentially on shutdown.

Therefore, I think ordering before network.target is better.
This commit is contained in:
Vincent Bernat 2018-08-05 23:07:54 +02:00
parent 8910795eee
commit 48f7778d99
1 changed files with 1 additions and 1 deletions
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nixos/modules/services/networking/dhcpcd.nix
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@ -161,8 +161,8 @@ in
{ description = "DHCP Client";
wantedBy = [ "multi-user.target" ] ++ optional (!hasDefaultGatewaySet) "network-online.target";
after = [ "network.target" ];
wants = [ "network.target" ];
before = [ "network.target" ];
# Stopping dhcpcd during a reconfiguration is undesirable
# because it brings down the network interfaces configured by