cephadm: manage cephadm log with logrotated

Signed-off-by: Daniel Pivonka <dpivonka@redhat.com>

diff --git a/src/cephadm/cephadm b/src/cephadm/cephadm
index 8e26e35e841d8e2a69cd6b43f03bb703f14d29ce..aa76beffe80e4275bb15ddc9be9e7d7fc0410df1 100755 (executable)
--- a/src/cephadm/cephadm
+++ b/src/cephadm/cephadm
@@ -213,11 +213,9 @@ logging_config = {
         },
         'log_file': {
             'level': 'DEBUG',
-            'class': 'logging.handlers.RotatingFileHandler',
+            'class': 'logging.handlers.WatchedFileHandler',
             'formatter': 'cephadm',
             'filename': '%s/cephadm.log' % LOG_DIR,
-            'maxBytes': 1024000,
-            'backupCount': 1,
         }
     },
     'loggers': {
@@ -5606,6 +5604,10 @@ def command_rm_cluster(ctx):
     # rm logrotate config
     call_throws(ctx, ['rm', '-f', ctx.logrotate_dir + '/ceph-%s' % ctx.fsid])
 
+    # rm cephadm logrotate config if last cluster on host
+    if not os.listdir(ctx.data_dir):
+        call_throws(ctx, ['rm', '-f', ctx.logrotate_dir + '/cephadm'])
+
     # rm sysctl settings
     sysctl_dir = Path(ctx.sysctl_dir)
     for p in sysctl_dir.glob(f'90-ceph-{ctx.fsid}-*.conf'):
@@ -8208,6 +8210,18 @@ def cephadm_init(args: List[str]) -> Optional[CephadmContext]:
     dictConfig(logging_config)
     logger = logging.getLogger()
 
+    if not os.path.exists(ctx.logrotate_dir + '/cephadm'):
+        with open(ctx.logrotate_dir + '/cephadm', 'w') as f:
+            f.write("""# created by cephadm
+/var/log/ceph/cephadm.log {
+    rotate 7
+    daily
+    compress
+    missingok
+    notifempty
+}
+""")
+
     if ctx.verbose:
         for handler in logger.handlers:
             if handler.name == 'console':