syslog: T4500: Remove max-size from rsyslog leaving rotation to logrotate

After discussion with @zsdc this was decided the better long term fix

* Removes hourly logrotate cron in favour of systemd timer override

5 files changed, 55 insertions, 7 deletions

diff --git a/src/conf_mode/system-syslog.py b/src/conf_mode/system-syslog.py
index a9d3bbe31..20132456c 100755
--- a/src/conf_mode/system-syslog.py
+++ b/src/conf_mode/system-syslog.py
@@ -52,8 +52,6 @@ def get_config(config=None):
         {
             'global': {
                 'log-file': '/var/log/messages',
-                'max-size': 262144,
-                'action-on-max-size': '/usr/sbin/logrotate /etc/logrotate.d/vyos-rsyslog',
                 'selectors': '*.notice;local7.debug',
                 'max-files': '5',
                 'preserver_fqdn': False
diff --git a/src/etc/cron.hourly/vyos-logrotate-hourly b/src/etc/cron.hourly/vyos-logrotate-hourly
deleted file mode 100755
index f4f56a9c2..000000000
--- a/src/etc/cron.hourly/vyos-logrotate-hourly
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/sh
-
-test -x /usr/sbin/logrotate || exit 0
-/usr/sbin/logrotate /etc/logrotate.conf
diff --git a/src/etc/logrotate.d/vyos-rsyslog b/src/etc/logrotate.d/vyos-rsyslog
index 28ea088e2..3c087b94e 100644
--- a/src/etc/logrotate.d/vyos-rsyslog
+++ b/src/etc/logrotate.d/vyos-rsyslog
@@ -4,7 +4,7 @@
     nomail
     notifempty
     rotate 10
-    size 262144
+    size 1M
     postrotate
         # inform rsyslog service about rotation
         /usr/lib/rsyslog/rsyslog-rotate
diff --git a/src/etc/systemd/system/logrotate.timer.d/10-override.conf b/src/etc/systemd/system/logrotate.timer.d/10-override.conf
new file mode 100644
index 000000000..f50c2b082
--- /dev/null
+++ b/src/etc/systemd/system/logrotate.timer.d/10-override.conf
@@ -0,0 +1,2 @@
+[Timer]
+OnCalendar=hourly
diff --git a/src/migration-scripts/system/24-to-25 b/src/migration-scripts/system/24-to-25
new file mode 100755
index 000000000..c2f70689d
--- /dev/null
+++ b/src/migration-scripts/system/24-to-25
@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Migrate system syslog global archive to system logs logrotate messages
+
+from sys import exit, argv
+from vyos.configtree import ConfigTree
+
+if (len(argv) < 1):
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+base = ['system', 'syslog', 'global', 'archive']
+config = ConfigTree(config_file)
+
+if not config.exists(base):
+    exit(0)
+
+if config.exists(base + ['file']):
+    tmp = config.return_value(base + ['file'])
+    config.set(['system', 'logs', 'logrotate', 'messages', 'rotate'], value=tmp)
+
+if config.exists(base + ['size']):
+    tmp = config.return_value(base + ['size'])
+    tmp = max(round(int(tmp) / 1024), 1) # kb -> mb
+    config.set(['system', 'logs', 'logrotate', 'messages', 'max-size'], value=tmp)
+
+config.delete(base)
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print(f'Failed to save the modified config: {e}')
+    exit(1)