Function to injects the msg to all log files under all dirs specified on nodes

Change-Id: Iece112c7d877840bc8cee4faa7e908e50cc548a2
Signed-off-by: Akarsha Rai <akrai@redhat.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/glustolibs-gluster-gd2/glustolibs/gluster/lib_utils.py b/glustolibs-gluster-gd2/glustolibs/gluster/lib_utils.py
new file mode 100644
index 0000000..3eb16e2
--- /dev/null
+++ b/glustolibs-gluster-gd2/glustolibs/gluster/lib_utils.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+#  Copyright (C) 2018  Red Hat, Inc. <http://www.redhat.com>
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  any later version.
+#
+#  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, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""
+    Description: Helper library for gluster modules.
+"""
+
+from glusto.core import Glusto as g
+
+
+def inject_msg_in_logs(nodes, log_msg, list_of_dirs=None, list_of_files=None):
+    """Injects the message to all log files under all dirs specified on nodes.
+    Args:
+        nodes (str|list): A server|List of nodes on which message has to be
+            injected to logs
+        log_msg (str): Message to be injected
+        list_of_dirs (list): List of dirs to inject message on log files.
+        list_of_files (list): List of files to inject message.
+    Returns:
+        bool: True if successfully injected msg on all log files.
+    """
+    if isinstance(nodes, str):
+        nodes = [nodes]
+
+    if list_of_dirs is None:
+        list_of_dirs = ""
+
+    if isinstance(list_of_dirs, list):
+        list_of_dirs = ' '.join(list_of_dirs)
+
+    if list_of_files is None:
+        list_of_files = ''
+
+    if isinstance(list_of_files, list):
+        list_of_files = ' '.join(list_of_files)
+
+    inject_msg_on_dirs = ""
+    inject_msg_on_files = ""
+    if list_of_dirs:
+        inject_msg_on_dirs = (
+            "for dir in %s ; do "
+            "for file in `find ${dir} -type f -name '*.log'`; do "
+            "echo \"%s\" >> ${file} ; done ;"
+            "done; " % (list_of_dirs, log_msg))
+    if list_of_files:
+        inject_msg_on_files = ("for file in %s ; do "
+                               "echo \"%s\" >> ${file} ; done; " %
+                               (list_of_files, log_msg))
+
+    cmd = inject_msg_on_dirs + inject_msg_on_files
+
+    results = g.run_parallel(nodes, cmd)
+
+    _rc = True
+    # Check for return status
+    for host in results:
+        ret, _, _ = results[host]
+        if ret != 0:
+            g.log.error("Failed to inject log message '%s' in dirs '%s', "
+                        "in files '%s',  on node'%s'",
+                        log_msg, list_of_dirs, list_of_files, host)
+            _rc = False
+    return _rc