nixos/treewide: drop dependencies to `keys.target`

The `keys.target` is used to indicate whether all NixOps keys were
successfully uploaded on an unattended reboot. However this can cause
startup issues e.g. with NixOS containers (see #67265) and can block
boots even though this might not be needed (e.g. with a dovecot2
instance running that doesn't need any of the NixOps keys).

As described in the NixOps manual[1], dependencies to keys should be
defined like this now:

``` nix
{
  systemd.services.myservice = {
    after = [ "secret-key.service" ];
    wants = [ "secret-key.service" ];
  };
}
```

However I'd leave the issue open until it's discussed whether or not to
keep `keys.target` in `nixpkgs`.

[1] https://nixos.org/nixops/manual/#idm140737322342384

6 files changed, 6 insertions, 13 deletions

diff --git a/nixos/modules/services/mail/dovecot.nix b/nixos/modules/services/mail/dovecot.nix
index 139011dca23..cdbb776454b 100644
--- a/nixos/modules/services/mail/dovecot.nix
+++ b/nixos/modules/services/mail/dovecot.nix
@@ -344,8 +344,7 @@ in
     systemd.services.dovecot2 = {
       description = "Dovecot IMAP/POP3 server";
 
-      after = [ "keys.target" "network.target" ];
-      wants = [ "keys.target" ];
+      after = [ "network.target" ];
       wantedBy = [ "multi-user.target" ];
       restartTriggers = [ cfg.configFile ];
 
diff --git a/nixos/modules/services/networking/nsd.nix b/nixos/modules/services/networking/nsd.nix
index 8b918dab86d..c69b77f9dee 100644
--- a/nixos/modules/services/networking/nsd.nix
+++ b/nixos/modules/services/networking/nsd.nix
@@ -916,9 +916,8 @@ in
     systemd.services.nsd = {
       description = "NSD authoritative only domain name service";
 
-      after = [ "keys.target" "network.target" ];
+      after = [ "network.target" ];
       wantedBy = [ "multi-user.target" ];
-      wants = [ "keys.target" ];
 
       serviceConfig = {
         ExecStart = "${nsdPkg}/sbin/nsd -d -c ${nsdEnv}/nsd.conf";
diff --git a/nixos/modules/services/networking/softether.nix b/nixos/modules/services/networking/softether.nix
index 0046dcd366f..65df93a00da 100644
--- a/nixos/modules/services/networking/softether.nix
+++ b/nixos/modules/services/networking/softether.nix
@@ -70,8 +70,6 @@ in
 
       systemd.services."softether-init" = {
         description = "SoftEther VPN services initial task";
-        after = [ "keys.target" ];
-        wants = [ "keys.target" ];
         wantedBy = [ "network.target" ];
         serviceConfig = {
           Type = "oneshot";
diff --git a/nixos/modules/services/networking/strongswan-swanctl/module.nix b/nixos/modules/services/networking/strongswan-swanctl/module.nix
index 817b5ec55f7..0fec3ef00ad 100644
--- a/nixos/modules/services/networking/strongswan-swanctl/module.nix
+++ b/nixos/modules/services/networking/strongswan-swanctl/module.nix
@@ -62,9 +62,8 @@ in  {
     systemd.services.strongswan-swanctl = {
       description = "strongSwan IPsec IKEv1/IKEv2 daemon using swanctl";
       wantedBy = [ "multi-user.target" ];
-      after    = [ "network-online.target" "keys.target" ];
-      wants    = [ "keys.target" ];
-      path = with pkgs; [ kmod iproute iptables utillinux ];
+      after    = [ "network-online.target" ];
+      path     = with pkgs; [ kmod iproute iptables utillinux ];
       environment = {
         STRONGSWAN_CONF = pkgs.writeTextFile {
           name = "strongswan.conf";
diff --git a/nixos/modules/services/networking/strongswan.nix b/nixos/modules/services/networking/strongswan.nix
index 41b69039ba7..4ff9c486059 100644
--- a/nixos/modules/services/networking/strongswan.nix
+++ b/nixos/modules/services/networking/strongswan.nix
@@ -151,8 +151,7 @@ in
       description = "strongSwan IPSec Service";
       wantedBy = [ "multi-user.target" ];
       path = with pkgs; [ kmod iproute iptables utillinux ]; # XXX Linux
-      wants = [ "keys.target" ];
-      after = [ "network-online.target" "keys.target" ];
+      after = [ "network-online.target" ];
       environment = {
         STRONGSWAN_CONF = strongswanConf { inherit setup connections ca secretsFile managePlugins enabledPlugins; };
       };
diff --git a/nixos/modules/services/web-servers/apache-httpd/default.nix b/nixos/modules/services/web-servers/apache-httpd/default.nix
index 12200c879be..098160ee369 100644
--- a/nixos/modules/services/web-servers/apache-httpd/default.nix
+++ b/nixos/modules/services/web-servers/apache-httpd/default.nix
@@ -670,8 +670,7 @@ in
       { description = "Apache HTTPD";
 
         wantedBy = [ "multi-user.target" ];
-        wants = [ "keys.target" ];
-        after = [ "network.target" "fs.target" "keys.target" ];
+        after = [ "network.target" "fs.target" ];
 
         path =
           [ httpd pkgs.coreutils pkgs.gnugrep ]