[pve-devel] [PATCH pve-manager 5/8] fix #4759: ceph: configure keyring for ceph-crash.service

[Max Carrara]

when creating the cluster's first monitor.

Signed-off-by: Max Carrara <m.carrara at proxmox.com>
---
 PVE/API2/Ceph/MON.pm | 28 +++++++++++++++++++++++++++-
 PVE/Ceph/Services.pm | 12 ++++++++++--
 PVE/Ceph/Tools.pm    | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 75 insertions(+), 3 deletions(-)

diff --git a/PVE/API2/Ceph/MON.pm b/PVE/API2/Ceph/MON.pm
index 1e959ef3..8d75f5d1 100644
--- a/PVE/API2/Ceph/MON.pm
+++ b/PVE/API2/Ceph/MON.pm
@@ -459,11 +459,37 @@ __PACKAGE__->register_method ({
 	    });
 	    die $@ if $@;
 	    # automatically create manager after the first monitor is created
+	    # and set up keyring and config for ceph-crash.service
 	    if ($is_first_monitor) {
 		PVE::API2::Ceph::MGR->createmgr({
 		    node => $param->{node},
 		    id => $param->{node}
-		})
+		});
+
+		PVE::Cluster::cfs_lock_file('ceph.conf', undef, sub {
+		    my $cfg = cfs_read_file('ceph.conf');
+
+		    if ($cfg->{'client.crash'}) {
+			return undef;
+		    }
+
+		    $cfg->{'client.crash'}->{keyring} = '/etc/pve/ceph/$cluster.$name.keyring';
+
+		    cfs_write_file('ceph.conf', $cfg);
+		});
+		die $@ if $@;
+
+		eval {
+		    PVE::Ceph::Tools::get_or_create_crash_keyring();
+		};
+		warn "Unable to configure keyring for ceph-crash.service: $@" if $@;
+
+		print "enabling service 'ceph-crash.service'\n";
+		PVE::Ceph::Services::ceph_service_cmd('enable', 'crash');
+		print "starting service 'ceph-crash.service'\n";
+		# ceph-crash already runs by default,
+		# this makes sure the keyring is used
+		PVE::Ceph::Services::ceph_service_cmd('restart', 'crash');
 	    }
 	};
 
diff --git a/PVE/Ceph/Services.pm b/PVE/Ceph/Services.pm
index e0f31e8e..5f5986f9 100644
--- a/PVE/Ceph/Services.pm
+++ b/PVE/Ceph/Services.pm
@@ -100,8 +100,16 @@ sub get_cluster_service {
 sub ceph_service_cmd {
     my ($action, $service) = @_;
 
-    if ($service && $service =~ m/^(mon|osd|mds|mgr|radosgw)(\.(${\SERVICE_REGEX}))?$/) {
-	$service = defined($3) ? "ceph-$1\@$3" : "ceph-$1.target";
+    if ($service) {
+	# specific (parameterized) services or targets
+	if ($service =~ m/^(mon|osd|mds|mgr|radosgw)(\.(${\SERVICE_REGEX}))?$/) {
+	    $service = defined($3) ? "ceph-$1\@$3" : "ceph-$1.target";
+	# other services without targets
+	} elsif ($service =~ m/^(crash)$/) {
+	    $service = "ceph-$1.service";
+	} else {
+	    $service = "ceph.target";
+	}
     } else {
 	$service = "ceph.target";
     }
diff --git a/PVE/Ceph/Tools.pm b/PVE/Ceph/Tools.pm
index 3acef11b..cf9f2ed4 100644
--- a/PVE/Ceph/Tools.pm
+++ b/PVE/Ceph/Tools.pm
@@ -18,7 +18,9 @@ my $ccname = 'ceph'; # ceph cluster name
 my $ceph_cfgdir = "/etc/ceph";
 my $pve_ceph_cfgpath = "/etc/pve/$ccname.conf";
 my $ceph_cfgpath = "$ceph_cfgdir/$ccname.conf";
+my $pve_ceph_cfgdir = "/etc/pve/ceph";
 
+my $pve_ceph_crash_key_path = "$pve_ceph_cfgdir/$ccname.client.crash.keyring";
 my $pve_mon_key_path = "/etc/pve/priv/$ccname.mon.keyring";
 my $pve_ckeyring_path = "/etc/pve/priv/$ccname.client.admin.keyring";
 my $ckeyring_path = "/etc/ceph/ceph.client.admin.keyring";
@@ -32,6 +34,7 @@ my $ceph_service = {
     ceph_mgr => "/usr/bin/ceph-mgr",
     ceph_osd => "/usr/bin/ceph-osd",
     ceph_mds => "/usr/bin/ceph-mds",
+    ceph_crash => '/usr/bin/ceph-crash',
     ceph_volume => '/usr/sbin/ceph-volume',
 };
 
@@ -44,6 +47,14 @@ my $config_hash = {
 	value => $pve_ceph_cfgpath,
 	is_file => 1,
     },
+    pve_ceph_cfgdir => {
+	value => $pve_ceph_cfgdir,
+	is_file => 0,
+    },
+    pve_ceph_crash_key_path => {
+	value => $pve_ceph_crash_key_path,
+	is_file => 1,
+    },
     pve_mon_key_path => {
 	value => $pve_mon_key_path,
 	is_file => 1,
@@ -439,6 +450,33 @@ sub get_or_create_admin_keyring {
     return $pve_ckeyring_path;
 }
 
+# requires connection to existing monitor
+sub get_or_create_crash_keyring {
+    my ($rados) = @_;
+
+    if (!defined($rados)) {
+	$rados = PVE::RADOS->new();
+    }
+
+    my $output = $rados->mon_command({
+	prefix => 'auth get-or-create',
+	entity => 'client.crash',
+	caps => [
+	    mon => 'profile crash',
+	    mgr => 'profile crash',
+	],
+	format => 'plain',
+    });
+
+    if (! -d $pve_ceph_cfgdir) {
+	mkdir $pve_ceph_cfgdir;
+    }
+
+    PVE::Tools::file_set_contents($pve_ceph_crash_key_path, $output);
+
+    return $pve_ceph_crash_key_path;
+}
+
 # get ceph-volume managed osds
 sub ceph_volume_list {
     my $result = {};
-- 
2.39.2