[pve-devel] [PATCH v4 pve-storage 07/16] cephconfig: allow writing arbitrary sections

[Max Carrara <m.carrara@proxmox.com>]

This adds support for writing arbitrary sections to 'ceph.conf' while
ensuring that already written sections are not duplicated.

Sections that are associated with the client, for example
'[client.foo]', are written directly after the '[client]' section.

Signed-off-by: Max Carrara <m.carrara@proxmox.com>
---
Changes v1 --> v2:
  * Instead of just adding 'client.crash' as a separate section,
    also allow writing arbitrary sections
Changes v2 --> v3:
  * this patch now only contains the changes actually mentioned in the
    commit message; the other changes have been put into separate
    patches
Changes v3 --> v4:
  * none

 src/PVE/CephConfig.pm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/PVE/CephConfig.pm b/src/PVE/CephConfig.pm
index 80f71b0..32ea544 100644
--- a/src/PVE/CephConfig.pm
+++ b/src/PVE/CephConfig.pm
@@ -87,6 +87,7 @@ my $parse_ceph_file = sub {
 sub write_ceph_config {
     my ($filename, $cfg) = @_;
 
+    my $written_sections = {};
     my $out = '';
 
     my $cond_write_sec = sub {
@@ -94,16 +95,21 @@ sub write_ceph_config {
 
 	foreach my $section (sort keys %$cfg) {
 	    next if $section !~ m/^$re$/;
+	    next if exists($written_sections->{$section});
+
 	    $out .= "[$section]\n";
 	    foreach my $key (sort keys %{$cfg->{$section}}) {
 		$out .= "\t $key = $cfg->{$section}->{$key}\n";
 	    }
 	    $out .= "\n";
+
+	    $written_sections->{$section} = 1;
 	}
     };
 
     &$cond_write_sec('global');
     &$cond_write_sec('client');
+    &$cond_write_sec('client\..*');
 
     &$cond_write_sec('mds');
     &$cond_write_sec('mon');
@@ -115,6 +121,8 @@ sub write_ceph_config {
     &$cond_write_sec('osd\..*');
     &$cond_write_sec('mgr\..*');
 
+    &$cond_write_sec('.*');
+
     return $out;
 }
 
-- 
2.39.2