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ec2-data.nix: Support ed25519 host keys

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This commit is contained in:
Eelco Dolstra 2015-09-23 00:03:13 +02:00
parent 3ef2f54fa3
commit df665ded7e
1 changed files with 12 additions and 2 deletions
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14
nixos/modules/virtualisation/ec2-data.nix
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@ -9,7 +9,7 @@ with lib;
{
config = {
systemd.services."fetch-ec2-data" =
systemd.services.fetch-ec2-data =
{ description = "Fetch EC2 Data";
wantedBy = [ "multi-user.target" "sshd.service" ];
@ -48,13 +48,22 @@ with lib;
# the supplied user data, if available. Otherwise sshd will
# generate one normally.
$wget http://169.254.169.254/2011-01-01/user-data > /root/user-data || true
mkdir -m 0755 -p /etc/ssh
key="$(sed 's/|/\n/g; s/SSH_HOST_DSA_KEY://; t; d' /root/user-data)"
key_pub="$(sed 's/SSH_HOST_DSA_KEY_PUB://; t; d' /root/user-data)"
if [ -n "$key" -a -n "$key_pub" -a ! -e /etc/ssh/ssh_host_dsa_key ]; then
mkdir -m 0755 -p /etc/ssh
(umask 077; echo "$key" > /etc/ssh/ssh_host_dsa_key)
echo "$key_pub" > /etc/ssh/ssh_host_dsa_key.pub
fi
key="$(sed 's/|/\n/g; s/SSH_HOST_ED25519_KEY://; t; d' /root/user-data)"
key_pub="$(sed 's/SSH_HOST_ED25519_KEY_PUB://; t; d' /root/user-data)"
if [ -n "$key" -a -n "$key_pub" -a ! -e /etc/ssh/ssh_host_ed25519_key ]; then
(umask 077; echo "$key" > /etc/ssh/ssh_host_ed25519_key)
echo "$key_pub" > /etc/ssh/ssh_host_ed25519_key.pub
fi
'';
serviceConfig.Type = "oneshot";
@ -72,6 +81,7 @@ with lib;
# ec2-get-console-output.
echo "-----BEGIN SSH HOST KEY FINGERPRINTS-----" > /dev/console
${config.programs.ssh.package}/bin/ssh-keygen -l -f /etc/ssh/ssh_host_dsa_key.pub > /dev/console
${config.programs.ssh.package}/bin/ssh-keygen -l -f /etc/ssh/ssh_host_ed25519_key.pub > /dev/console
echo "-----END SSH HOST KEY FINGERPRINTS-----" > /dev/console
'';
serviceConfig.Type = "oneshot";