Checks that Mpath devices are even, as usually odd means that there a…

…re missing paths

Closes #579

Change-Id: I94ed9d6e77f93ffb2f7d7d33eaa45702b2e02f30

citellusclient/plugins/core/system/even-mpaths.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# Copyright (C) 2020 Pablo Iranzo Gómez <Pablo.Iranzo@gmail.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 3 of the License, or
+# (at your option) 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, see <http://www.gnu.org/licenses/>.
+
+# we can run this against fs snapshot or live system
+
+# long_name: Checks for an even number of paths
+# description: Reports if a multipath device has not an even number of devices
+# priority: 800
+
+# Load common functions
+[[ -f "${CITELLUS_BASE}/common-functions.sh" ]] && . "${CITELLUS_BASE}/common-functions.sh"
+
+# Code for generating items for faraday-CSV
+
+if [[ ${CITELLUS_LIVE} -eq 0 ]]; then
+    FILE="${CITELLUS_ROOT}/sos_commands/multipath/multipath_-l"
+elif [[ ${CITELLUS_LIVE} -eq 1 ]]; then
+    FILE=$(mktemp)
+    trap "rm ${FILE}" EXIT
+    multipath -l >${FILE} 2>&1
+fi
+
+is_required_file ${FILE}
+
+STATUS=${RC_OKAY}
+
+(
+    for lun in $(grep ^36 ${FILE} | awk '{print $1}' | sort); do
+        NUMLUNS=$(sed -n '/'^${lun}'.*/,/^360/p' ${FILE} | grep ":" | wc -l)
+        if [ $((number % 2)) -neq 0 ]; then
+            echo ${lun}:${NUMLUNS} >&2
+            STATUS=${RC_FAILED}
+        fi
+
+    done
+)
+
+exit ${STATUS}