pveupdate: add ACME certificate renewal

renew certificate if an acme config entry and a custom certificate
exists on the local node and the certificate expires soon.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

diff --git a/bin/pveupdate b/bin/pveupdate
index 952a54a40c8f79b9223f962e448b159a8991aa2d..5a42ce73479055bc4e4925d9f47f99e86d914cac 100755 (executable)
--- a/bin/pveupdate
+++ b/bin/pveupdate
@@ -7,6 +7,9 @@ use IO::File;
 use File::Find;
 use File::stat;
 
+use PVE::CertHelpers;
+use PVE::Certificate;
+use PVE::NodeConfig;
 use PVE::INotify;
 use PVE::Cluster;
 use PVE::APLInfo;
@@ -14,6 +17,7 @@ use PVE::SafeSyslog;
 use PVE::RPCEnvironment;
 use PVE::API2::Subscription;
 use PVE::API2::APT;
+use PVE::API2::ACME;
 
 initlog ('pveupdate', 'daemon');
 
@@ -51,6 +55,23 @@ if (my $err = $@) {
     syslog ('err', "update apt database failed: $err");
 }
 
+eval {
+    my $node_config = PVE::NodeConfig::load_config($nodename);
+    if ($node_config && $node_config->{acme}) {
+       my $cert = PVE::CertHelpers::cert_path_prefix($nodename).".pem";
+       if (-e $cert) {
+           if (PVE::Certificate::check_expiry($cert, time() + 30*24*60*60)) {
+               PVE::API2::ACME->renew_certificate({ node => $nodename });
+           } else {
+               syslog ('info', 'Custom certificate does not expire soon, skipping ACME renewal.');
+           }
+       } else {
+           syslog ('info', 'ACME config found for node, but no custom certificate exists. Skipping ACME renewal until initial certificate has been deployed.');
+       }
+    }
+};
+syslog ('err', "Renewing ACME certificate failed: $@") if $@;
+
 sub cleanup_tasks {
 
     my $taskdir = "/var/log/pve/tasks";