Adding upstream version 2.1.6.upstream/2.1.6

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 197 insertions, 0 deletions

diff --git a/agents/ocf/HealthIOWait.in b/agents/ocf/HealthIOWait.in
new file mode 100755
index 0000000..ba7a17a
--- /dev/null
+++ b/agents/ocf/HealthIOWait.in
@@ -0,0 +1,197 @@
+#!/bin/sh
+#
+# ocf:pacemaker:HealthIOWait resource agent
+#
+# Copyright 2004-2023 the Pacemaker project contributors
+#
+# The version control history for this file may have further details.
+#
+# This source code is licensed under the GNU General Public License version 2
+# (GPLv2) WITHOUT ANY WARRANTY.
+#
+
+#
+# Measures CPU iowait % via top and writes #health-iowait status into the CIB
+#
+#######################################################################
+# Initialization:
+
+: ${OCF_FUNCTIONS:="${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs"}
+. "${OCF_FUNCTIONS}"
+: ${__OCF_ACTION:="$1"}
+
+#######################################################################
+
+meta_data() {
+        cat <<END
+<?xml version="1.0"?>
+<resource-agent name="HealthIOWait" version="@VERSION@">
+<version>1.1</version>
+
+<longdesc lang="en">
+System health agent that measures the CPU iowait via top and updates the #health-iowait attribute.
+</longdesc>
+<shortdesc lang="en">System health based on CPU iowait measurement</shortdesc>
+
+<parameters>
+<parameter name="state" unique-group="state">
+<longdesc lang="en">
+Location to store the resource state in.
+</longdesc>
+<shortdesc lang="en">State file</shortdesc>
+<content type="string" default="${HA_VARRUN%%/}/health-iowait-${OCF_RESOURCE_INSTANCE}.state" />
+</parameter>
+
+<parameter name="yellow_limit">
+<longdesc lang="en">
+Upper limit of iowait percentage to switch the health attribute to yellow. I.e.
+the #health-iowait will go yellow if the %iowait of the CPU gets higher than 10%.
+</longdesc>
+<shortdesc lang="en">Upper limit for yellow health attribute</shortdesc>
+<content type="integer" default="10"/>
+</parameter>
+
+<parameter name="red_limit">
+<longdesc lang="en">
+Upper limit of iowait percentage to switch the health attribute to red. I.e.
+the #health-iowait will go red if the %iowait of the CPU get higher than 15%.
+</longdesc>
+<shortdesc lang="en">Upper limit for red health attribute</shortdesc>
+<content type="integer" default="15"/>
+</parameter>
+
+</parameters>
+
+<actions>
+<action name="start"        timeout="10s" />
+<action name="stop"         timeout="10s" />
+<action name="monitor"      timeout="10s" interval="10s" start-delay="0s" />
+<action name="meta-data"    timeout="5s" />
+<action name="validate-all" timeout="10s" depth="0" />
+</actions>
+</resource-agent>
+END
+}
+
+#######################################################################
+
+agent_usage() {
+        cat <<END
+usage: $0 {start|stop|monitor|validate-all|meta-data}
+
+Expects to have a fully populated OCF RA-compliant environment set.
+END
+}
+
+agent_start() {
+    agent_monitor
+    if [ $? -eq $OCF_SUCCESS ]; then
+      return $OCF_SUCCESS
+    fi
+    touch "${OCF_RESKEY_state}"
+}
+
+agent_stop() {
+    agent_monitor
+    if [ $? -eq $OCF_SUCCESS ]; then
+        rm "${OCF_RESKEY_state}"
+    fi
+    return $OCF_SUCCESS
+}
+
+agent_monitor() {
+        # Monitor _MUST!_ differentiate correctly between running
+        # (SUCCESS), failed (ERROR) or _cleanly_ stopped (NOT RUNNING).
+        # That is THREE states, not just yes/no.
+        if [ -f "${OCF_RESKEY_state}" ]; then
+          WAIT=$(top -b -n2 | grep Cpu | tail -1 | awk -F",|.[0-9][ %]wa" '{ print $5 }')
+          # echo "System iowait: " $WAIT
+          # echo $OCF_RESKEY_yellow_limit
+          if [ $WAIT -gt ${OCF_RESKEY_red_limit} ] ; then
+            # echo "System state RED!"
+            attrd_updater -n "#health-iowait" -U "red" -d "5s"
+            return $OCF_SUCCESS
+          fi
+
+          if [ $WAIT -gt ${OCF_RESKEY_yellow_limit} ] ; then
+            # echo "System state yellow."
+            attrd_updater -n "#health-iowait" -U "yellow" -d "5s"
+          else
+            # echo "System state green."
+            attrd_updater -n "#health-iowait" -U "green" -d "5s"
+          fi
+          return $OCF_SUCCESS
+        fi
+        return $OCF_NOT_RUNNING
+}
+
+is_integer() {
+    case "$1" in
+        ""|*[0-9]*) return 0 ;;
+        *)          return 1 ;;
+    esac
+}
+
+is_writable_dir() {
+    dir=$(dirname "$1")
+    [ -d "$dir" ] && [ -w "$dir" ] && [ -x "$dir" ]
+}
+
+agent_validate() {
+
+    is_integer "$OCF_RESKEY_yellow_limit" && is_integer "$OCF_RESKEY_red_limit"
+    if [ $? -ne 0 ]; then
+        return $OCF_ERR_CONFIGURED
+    fi
+
+    if [ "$OCF_CHECK_LEVEL" = "10" ]; then
+        is_writable_dir "$OCF_RESKEY_state"
+        if [ $? -ne 0 ]; then
+          return $OCF_ERR_ARGS
+        fi
+    fi
+
+    return $OCF_SUCCESS
+}
+
+: ${OCF_RESKEY_CRM_meta_interval:=0}
+: ${OCF_RESKEY_CRM_meta_globally_unique:="false"}
+
+if [ -z "$OCF_RESKEY_state" ]; then
+    if [ "${OCF_RESKEY_CRM_meta_globally_unique}" = "false" ]; then
+      state="${HA_VARRUN%%/}/HealthIoWait-${OCF_RESOURCE_INSTANCE}.state"
+      #Strip off the trailing clone marker
+      OCF_RESKEY_state=$(echo $state | sed s/:[0-9][0-9]*\.state/.state/)
+    else
+      OCF_RESKEY_state="${HA_VARRUN%%/}/HealthIoWait-${OCF_RESOURCE_INSTANCE}.state"
+    fi
+fi
+
+if [ -z "${OCF_RESKEY_red_limit}" ] ; then
+  OCF_RESKEY_red_limit=15
+fi
+
+if [ -z "${OCF_RESKEY_yellow_limit}" ] ; then
+  OCF_RESKEY_yellow_limit=10
+fi
+
+case $__OCF_ACTION in
+meta-data)      meta_data
+                exit $OCF_SUCCESS
+                ;;
+start)          agent_start;;
+stop)           agent_stop;;
+monitor)        agent_monitor;;
+validate-all)   agent_validate;;
+usage|help)     agent_usage
+                exit $OCF_SUCCESS
+                ;;
+*)              agent_usage
+                exit $OCF_ERR_UNIMPLEMENTED
+                ;;
+esac
+rc=$?
+ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
+exit $rc
+
+# vim: set filetype=sh expandtab tabstop=4 softtabstop=4 shiftwidth=4 textwidth=80: