diff --git a/manifests/logging.pp b/manifests/logging.pp
index eb63019..e4a98d5 100644
--- a/manifests/logging.pp
+++ b/manifests/logging.pp
@@ -12,6 +12,10 @@
 #    (Optional) Use syslog for logging.
 #    Defaults to $::os_service_default
 #
+#  [*use_json*]
+#    (Optional) Use json for logging.
+#    Defaults to $::os_service_default
+#
 #  [*use_stderr*]
 #    (optional) Use stderr for logging
 #    Defaults to $::os_service_default
@@ -91,6 +95,7 @@
 #
 class magnum::logging(
   $use_syslog                    = $::os_service_default,
+  $use_json                      = $::os_service_default,
   $use_stderr                    = $::os_service_default,
   $log_facility                  = $::os_service_default,
   $log_dir                       = '/var/log/magnum',
@@ -113,6 +118,7 @@ class magnum::logging(
   oslo::log { 'magnum_config':
     debug                         => $debug,
     use_syslog                    => $use_syslog,
+    use_json                      => $use_json,
     use_stderr                    => $use_stderr,
     log_dir                       => $log_dir,
     syslog_log_facility           => $log_facility,
diff --git a/releasenotes/notes/log-json-d5138783135f23e9.yaml b/releasenotes/notes/log-json-d5138783135f23e9.yaml
new file mode 100644
index 0000000..41c0413
--- /dev/null
+++ b/releasenotes/notes/log-json-d5138783135f23e9.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Expose use_json logging parameter, which enables JSON formatted logging.
diff --git a/spec/classes/magnum_logging_spec.rb b/spec/classes/magnum_logging_spec.rb
index 14fd32f..de4d6f7 100644
--- a/spec/classes/magnum_logging_spec.rb
+++ b/spec/classes/magnum_logging_spec.rb
@@ -24,6 +24,7 @@ describe 'magnum::logging' do
      :instance_uuid_format => '[instance: %(uuid)s] ',
      :log_date_format => '%Y-%m-%d %H:%M:%S',
      :use_syslog => true,
+     :use_json => true,
      :use_stderr => false,
      :log_facility => 'LOG_FOO',
      :log_dir => '/var/log',
@@ -56,6 +57,7 @@ describe 'magnum::logging' do
   shared_examples 'basic default logging settings' do
     it 'configures magnum logging settings with default values' do
       is_expected.to contain_magnum_config('DEFAULT/use_syslog').with(:value => '<SERVICE DEFAULT>')
+      is_expected.to contain_magnum_config('DEFAULT/use_json').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_magnum_config('DEFAULT/use_stderr').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_magnum_config('DEFAULT/syslog_log_facility').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_magnum_config('DEFAULT/log_dir').with(:value => '/var/log/magnum')
@@ -66,6 +68,7 @@ describe 'magnum::logging' do
   shared_examples 'basic non-default logging settings' do
     it 'configures magnum logging settings with non-default values' do
       is_expected.to contain_magnum_config('DEFAULT/use_syslog').with(:value => 'true')
+      is_expected.to contain_magnum_config('DEFAULT/use_json').with(:value => 'true')
       is_expected.to contain_magnum_config('DEFAULT/use_stderr').with(:value => 'false')
       is_expected.to contain_magnum_config('DEFAULT/syslog_log_facility').with(:value => 'LOG_FOO')
       is_expected.to contain_magnum_config('DEFAULT/log_dir').with(:value => '/var/log')