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From: Max Carrara <m.carrara@proxmox.com>
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Date: Tue,  2 Apr 2024 16:55:21 +0200
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Subject: [pve-devel] [PATCH v5 pve-manager 09/11] ceph: introduce
 '/etc/pve/ceph'
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This commit adds the '/etc/pve/ceph' directory to our overall expected
Ceph configuration.

This directory is meant to store cluster-wide, non-private
configuration files used by Ceph applications and services that are
executed with lower privileges, such as 'ceph-crash.service'.

The existence of the directory is now also checked for when checking
whether Ceph is configured correctly. This makes it easier for our
other tooling to rely on the directory's existence, reducing the
number of otherwise needless frequent checking.

* For new clusters: `pveceph init` now creates '/etc/pve/ceph' when
  called.

* For existing clusters: The 'postinst' hook this commit adds ensures
  that '/etc/pve/ceph' is created when updating.

Signed-off-by: Max Carrara <m.carrara@proxmox.com>
---
Changes v2 --> v3:
  * new; originally part of patches 09, 10 of series v2 - decided it's
    better to move all this into a separate patch to make context +
    intention clearer

Changes v3 --> v4:
  * none

Changes v4 --> v5:
  * use placeholder for version guard in `postinst` (see cover letter)
  * reword commit message

 PVE/API2/Ceph.pm  |  5 +++++
 PVE/Ceph/Tools.pm | 12 ++++++++++--
 debian/postinst   | 12 ++++++++++++
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/PVE/API2/Ceph.pm b/PVE/API2/Ceph.pm
index 81c17d6e..7fedb87a 100644
--- a/PVE/API2/Ceph.pm
+++ b/PVE/API2/Ceph.pm
@@ -192,6 +192,11 @@ __PACKAGE__->register_method ({
 	    PVE::Ceph::Tools::check_ceph_installed('ceph_bin');
 	}
 
+	my $pve_ceph_cfgdir = PVE::Ceph::Tools::get_config('pve_ceph_cfgdir');
+	if (! -d $pve_ceph_cfgdir) {
+	    File::Path::make_path($pve_ceph_cfgdir);
+	}
+
 	my $auth = $param->{disable_cephx} ? 'none' : 'cephx';
 
 	# simply load old config if it already exists
diff --git a/PVE/Ceph/Tools.pm b/PVE/Ceph/Tools.pm
index ee6c515c..735bb116 100644
--- a/PVE/Ceph/Tools.pm
+++ b/PVE/Ceph/Tools.pm
@@ -18,6 +18,7 @@ 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 $pve_mon_key_path = "/etc/pve/priv/$ccname.mon.keyring";
 my $pve_ckeyring_path = "/etc/pve/priv/$ccname.client.admin.keyring";
@@ -37,6 +38,7 @@ my $ceph_service = {
 
 my $config_values = {
     ccname => $ccname,
+    pve_ceph_cfgdir => $pve_ceph_cfgdir,
     ceph_mds_data_dir => $ceph_mds_data_dir,
     long_rados_timeout => 60,
 };
@@ -186,8 +188,14 @@ sub check_ceph_inited {
 
     return undef if !check_ceph_installed('ceph_mon', $noerr);
 
-    if (! -f $pve_ceph_cfgpath) {
-	die "pveceph configuration not initialized\n" if !$noerr;
+    my @errors;
+
+    push(@errors, "missing '$pve_ceph_cfgpath'") if ! -f $pve_ceph_cfgpath;
+    push(@errors, "missing '$pve_ceph_cfgdir'") if ! -d $pve_ceph_cfgdir;
+
+    if (@errors) {
+	my $err = 'pveceph configuration not initialized - ' . join(', ', @errors) . "\n";
+	die $err if !$noerr;
 	return undef;
     }
 
diff --git a/debian/postinst b/debian/postinst
index 6138ef6d..58f2713f 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -80,6 +80,14 @@ EOF
     fi
 }
 
+update_ceph_conf() {
+    CEPH_CONF_DIR='/etc/pve/ceph'
+
+    if test ! -d "${CEPH_CONF_DIR}"; then
+        mkdir -p "${CEPH_CONF_DIR}"
+    fi
+}
+
 migrate_apt_auth_conf() {
     output=""
     removed=""
@@ -190,6 +198,10 @@ case "$1" in
 
     set_lvm_conf
 
+    if test -n "$2" && dpkg --compare-versions "$2" 'lt' '0.0.0'; then
+        update_ceph_conf
+    fi
+
     if test ! -e /proxmox_install_mode; then
         # modeled after code generated by dh_start
         for unit in ${UNITS}; do
-- 
2.39.2