[pve-devel] [PATCH v3 manager 1/2] api: ceph: add ceph/cfg path, deprecate ceph/config and ceph/configdb

[Aaron Lauterer]

Consolidating the different config paths lets us add more as needed
without polluting our API with too many 'configxxx' endpoints.

The config and configdb paths are renamed under the ceph/cfg path:
* config -> raw (returns the ceph.conf file as is)
* configdb -> db (returns the ceph config db contents)

The old paths are still available and need to be dropped at some point.

Signed-off-by: Aaron Lauterer <a.lauterer at proxmox.com>
---
changes since v2:
* removed unused import of PVE::Cluster
* removed unused imports from PVE::Tools, only 'file_get_contents' is
  needed

 PVE/API2/Ceph.pm       |  15 ++++--
 PVE/API2/Ceph/Cfg.pm   | 115 +++++++++++++++++++++++++++++++++++++++++
 PVE/API2/Ceph/Makefile |   1 +
 3 files changed, 128 insertions(+), 3 deletions(-)
 create mode 100644 PVE/API2/Ceph/Cfg.pm

diff --git a/PVE/API2/Ceph.pm b/PVE/API2/Ceph.pm
index 786a1870..3e3dd399 100644
--- a/PVE/API2/Ceph.pm
+++ b/PVE/API2/Ceph.pm
@@ -18,6 +18,7 @@ use PVE::RPCEnvironment;
 use PVE::Storage;
 use PVE::Tools qw(run_command file_get_contents file_set_contents extract_param);
 
+use PVE::API2::Ceph::Cfg;
 use PVE::API2::Ceph::OSD;
 use PVE::API2::Ceph::FS;
 use PVE::API2::Ceph::MDS;
@@ -30,6 +31,11 @@ use base qw(PVE::RESTHandler);
 
 my $pve_osd_default_journal_size = 1024*5;
 
+__PACKAGE__->register_method ({
+    subclass => "PVE::API2::Ceph::Cfg",
+    path => 'cfg',
+});
+
 __PACKAGE__->register_method ({
     subclass => "PVE::API2::Ceph::OSD",
     path => 'osd',
@@ -88,6 +94,7 @@ __PACKAGE__->register_method ({
 
 	my $result = [
 	    { name => 'cmd-safety' },
+	    { name => 'cfg' },
 	    { name => 'config' },
 	    { name => 'configdb' },
 	    { name => 'crush' },
@@ -109,6 +116,8 @@ __PACKAGE__->register_method ({
 	return $result;
     }});
 
+
+# TODO: deprecrated, remove with PVE 8
 __PACKAGE__->register_method ({
     name => 'config',
     path => 'config',
@@ -117,7 +126,7 @@ __PACKAGE__->register_method ({
     permissions => {
 	check => ['perm', '/', [ 'Sys.Audit', 'Datastore.Audit' ], any => 1],
     },
-    description => "Get the Ceph configuration file.",
+    description => "Get the Ceph configuration file. Deprecated, please use `/nodes/{node}/ceph/cfg/raw.",
     parameters => {
 	additionalProperties => 0,
 	properties => {
@@ -135,6 +144,7 @@ __PACKAGE__->register_method ({
 
     }});
 
+# TODO: deprecrated, remove with PVE 8
 __PACKAGE__->register_method ({
     name => 'configdb',
     path => 'configdb',
@@ -144,7 +154,7 @@ __PACKAGE__->register_method ({
     permissions => {
 	check => ['perm', '/', [ 'Sys.Audit', 'Datastore.Audit' ], any => 1],
     },
-    description => "Get the Ceph configuration database.",
+    description => "Get the Ceph configuration database. Deprecated, please use `/nodes/{node}/ceph/cfg/db.",
     parameters => {
 	additionalProperties => 0,
 	properties => {
@@ -179,7 +189,6 @@ __PACKAGE__->register_method ({
 	return $res;
     }});
 
-
 __PACKAGE__->register_method ({
     name => 'init',
     path => 'init',
diff --git a/PVE/API2/Ceph/Cfg.pm b/PVE/API2/Ceph/Cfg.pm
new file mode 100644
index 00000000..f3c2589d
--- /dev/null
+++ b/PVE/API2/Ceph/Cfg.pm
@@ -0,0 +1,115 @@
+package PVE::API2::Ceph::Cfg;
+
+use strict;
+use warnings;
+
+use PVE::Ceph::Tools;
+use PVE::JSONSchema qw(get_standard_option);
+use PVE::RADOS;
+use PVE::Tools qw(file_get_contents);
+
+use base qw(PVE::RESTHandler);
+
+__PACKAGE__->register_method ({
+    name => 'index',
+    path => '',
+    method => 'GET',
+    description => "Directory index.",
+    permissions => { user => 'all' },
+    permissions => {
+	check => ['perm', '/', [ 'Sys.Audit', 'Datastore.Audit' ], any => 1],
+    },
+    parameters => {
+	additionalProperties => 0,
+	properties => {
+	    node => get_standard_option('pve-node'),
+	},
+    },
+    returns => {
+	type => 'array',
+	items => {
+	    type => "object",
+	    properties => {},
+	},
+	links => [ { rel => 'child', href => "{name}" } ],
+    },
+    code => sub {
+	my ($param) = @_;
+
+	my $result = [
+	    { name => 'raw' },
+	    { name => 'db' },
+	];
+
+	return $result;
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'raw',
+    path => 'raw',
+    method => 'GET',
+    proxyto => 'node',
+    permissions => {
+	check => ['perm', '/', [ 'Sys.Audit', 'Datastore.Audit' ], any => 1],
+    },
+    description => "Get the Ceph configuration file.",
+    parameters => {
+	additionalProperties => 0,
+	properties => {
+	    node => get_standard_option('pve-node'),
+	},
+    },
+    returns => { type => 'string' },
+    code => sub {
+	my ($param) = @_;
+
+	PVE::Ceph::Tools::check_ceph_inited();
+
+	my $path = PVE::Ceph::Tools::get_config('pve_ceph_cfgpath');
+	return file_get_contents($path);
+
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'db',
+    path => 'db',
+    method => 'GET',
+    proxyto => 'node',
+    protected => 1,
+    permissions => {
+	check => ['perm', '/', [ 'Sys.Audit', 'Datastore.Audit' ], any => 1],
+    },
+    description => "Get the Ceph configuration database.",
+    parameters => {
+	additionalProperties => 0,
+	properties => {
+	    node => get_standard_option('pve-node'),
+	},
+    },
+    returns => {
+	type => 'array',
+	items => {
+	    type => 'object',
+	    properties => {
+		section => { type => "string", },
+		name => { type => "string", },
+		value => { type => "string", },
+		level => { type => "string", },
+		'can_update_at_runtime' => { type => "boolean", },
+		mask => { type => "string" },
+	    },
+	},
+    },
+    code => sub {
+	my ($param) = @_;
+
+	PVE::Ceph::Tools::check_ceph_inited();
+
+	my $rados = PVE::RADOS->new();
+	my $res = $rados->mon_command( { prefix => 'config dump', format => 'json' });
+	foreach my $entry (@$res) {
+	    $entry->{can_update_at_runtime} = $entry->{can_update_at_runtime}? 1 : 0; # JSON::true/false -> 1/0
+	}
+
+	return $res;
+    }});
diff --git a/PVE/API2/Ceph/Makefile b/PVE/API2/Ceph/Makefile
index 45daafda..be7b6926 100644
--- a/PVE/API2/Ceph/Makefile
+++ b/PVE/API2/Ceph/Makefile
@@ -1,6 +1,7 @@
 include ../../../defines.mk
 
 PERLSOURCE= 			\
+	Cfg.pm 			\
 	MGR.pm			\
 	MON.pm			\
 	OSD.pm			\
-- 
2.30.2