···

       
23
       
23
       
 
       


     

       
24
       
24
       
 
       
      wantedBy = [

     

       
25
       
25
       
 
       
        "multi-user.target"

     

       
26
       
26
       
-
       
        "sshd.service"

     

       
26
       
26
       
+
       
        "sshd-keygen.service"

     

       
27
       
27
       
 
       
      ];

     

       
28
       
28
       
-
       
      before = [ "sshd.service" ];

     

       
28
       
28
       
+
       
      before = [ "sshd-keygen.service" ];

     

       
29
       
29
       
 
       
      after = [ "fetch-ec2-metadata.service" ];

     

       
30
       
30
       
 
       


     

       
31
       
31
       
 
       
      path = [ pkgs.iproute2 ];

     
···

       
80
       
80
       
 
       
    systemd.services.print-host-key = {

     

       
81
       
81
       
 
       
      description = "Print SSH Host Key";

     

       
82
       
82
       
 
       
      wantedBy = [ "multi-user.target" ];

     

       
83
       
83
       
-
       
      after = [ "sshd.service" ];

     

       
83
       
83
       
+
       
      after = [ "sshd-keygen.service" ];

     

       
84
       
84
       
 
       
      script = ''

     

       
85
       
85
       
 
       
        # Print the host public key on the console so that the user

     

       
86
       
86
       
 
       
        # can obtain it securely by parsing the output of