[container_log] Add maxage option

This patch adds the `maxage` option to the `container_log` plugin,
allowing the retrieval of logs that are not older than `maxage` hours.

This affects bot the normal containers log gathering as well as the pods
gathering.

Signed-off-by: Gorka Eguileor <[email protected]>

sos/report/plugins/container_log.py

@@ -24,9 +24,13 @@ class ContainerLog(Plugin, IndependentPlugin):
         PluginOpt('rotated', default=False, val_type=bool,
                   desc='get all logs from /var/log/pods regardless of size, '
                   'which will include all rotated logs'),
+        PluginOpt('maxage', default=None, val_type=int,
+                  desc='gather only logs with `mtime` not older than this many'
+                  ' hours')
     ]
 
     def setup(self):
+        maxage = self.get_option('maxage')
         sizelimit = None
         # Remove size limit from containers logs when getting rotated, since
         # they are just symlinks to the pods logs
@@ -36,18 +40,20 @@ def setup(self):
                 self._log_warn(f"could not find {self.poddir}, skipping it")
             else:
                 sizelimit = 0
-                self.add_copy_spec(self.poddir, sizelimit=sizelimit)
+                self.add_copy_spec(self.poddir, sizelimit=sizelimit,
+                                   maxage=maxage)
 
         if self.get_option('all_logs'):
-            self.add_copy_spec(self.logdir)
+            self.add_copy_spec(self.logdir, maxage=maxage)
         else:
-            self.collect_subdirs(sizelimit=sizelimit)
+            self.collect_subdirs(sizelimit=sizelimit, maxage=maxage)
 
-    def collect_subdirs(self, root=logdir, sizelimit=None):
+    def collect_subdirs(self, root=logdir, sizelimit=None, maxage=None):
         """Collect *.log files from subdirs of passed root path
         """
         for dir_name, _, _ in os.walk(root):
             self.add_copy_spec(self.path_join(dir_name, '*.log'),
-                               sizelimit=sizelimit)
+                               sizelimit=sizelimit,
+                               maxage=maxage)
 
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