fb25385d34
For N we cannot assume services are managed by pacemaker. This adds functions to check if a service is systemd or pcmk managed and start/stops it accordingly. For pcmk, only stop/disable on bootstrap node for example, whereas systemd should stop/start on all controllers. There is also an equivalent change to the check_resource which has been reworked to allow both pcmk and systemd. Implements: blueprint overcloud-upgrades-workflow-mitaka-to-newton Change-Id: Ic8252736781dc906b3aef8fc756eb8b2f3bb1f02
300 lines
8.4 KiB
Bash
Executable File
300 lines
8.4 KiB
Bash
Executable File
#!/bin/bash
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set -eu
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DEBUG="true" # set false if the verbosity is a problem
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SCRIPT_NAME=$(basename $0)
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function log_debug {
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if [[ $DEBUG = "true" ]]; then
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echo "`date` $SCRIPT_NAME tripleo-upgrade $(facter hostname) $1"
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fi
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}
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function is_bootstrap_node {
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if [ "$(hiera -c /etc/puppet/hiera.yaml bootstrap_nodeid)" = "$(facter hostname)" ]; then
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log_debug "Node is bootstrap"
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echo "true"
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fi
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}
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function check_resource_pacemaker {
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if [ "$#" -ne 3 ]; then
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echo_error "ERROR: check_resource function expects 3 parameters, $# given"
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exit 1
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fi
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local service=$1
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local state=$2
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local timeout=$3
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if [[ -z $(is_bootstrap_node) ]] ; then
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log_debug "Node isn't bootstrap, skipping check for $service to be $state here "
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return
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else
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log_debug "Node is bootstrap checking $service to be $state here"
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fi
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if [ "$state" = "stopped" ]; then
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match_for_incomplete='Started'
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else # started
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match_for_incomplete='Stopped'
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fi
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nodes_local=$(pcs status | grep ^Online | sed 's/.*\[ \(.*\) \]/\1/g' | sed 's/ /\|/g')
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if timeout -k 10 $timeout crm_resource --wait; then
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node_states=$(pcs status --full | grep "$service" | grep -v Clone | { egrep "$nodes_local" || true; } )
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if echo "$node_states" | grep -q "$match_for_incomplete"; then
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echo_error "ERROR: cluster finished transition but $service was not in $state state, exiting."
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exit 1
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else
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echo "$service has $state"
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fi
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else
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echo_error "ERROR: cluster remained unstable for more than $timeout seconds, exiting."
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exit 1
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fi
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}
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function pcmk_running {
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if [[ $(systemctl is-active pacemaker) = "active" ]] ; then
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echo "true"
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fi
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}
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function is_systemd_unknown {
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local service=$1
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if [[ $(systemctl is-active "$service") = "unknown" ]]; then
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log_debug "$service found to be unkown to systemd"
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echo "true"
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fi
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}
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function grep_is_cluster_controlled {
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local service=$1
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if [[ -n $(systemctl status $service -l | grep Drop-In -A 5 | grep pacemaker) ||
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-n $(systemctl status $service -l | grep "Cluster Controlled $service") ]] ; then
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log_debug "$service is pcmk managed from systemctl grep"
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echo "true"
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fi
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}
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function is_systemd_managed {
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local service=$1
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#if we have pcmk check to see if it is managed there
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if [[ -n $(pcmk_running) ]]; then
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if [[ -z $(pcs status --full | grep $service) && -z $(is_systemd_unknown $service) ]] ; then
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log_debug "$service found to be systemd managed from pcs status"
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echo "true"
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fi
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else
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# if it is "unknown" to systemd, then it is pacemaker managed
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if [[ -n $(is_systemd_unknown $service) ]] ; then
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return
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elif [[ -z $(grep_is_cluster_controlled $service) ]] ; then
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echo "true"
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fi
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fi
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}
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function is_pacemaker_managed {
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local service=$1
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#if we have pcmk check to see if it is managed there
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if [[ -n $(pcmk_running) ]]; then
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if [[ -n $(pcs status --full | grep $service) ]]; then
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log_debug "$service found to be pcmk managed from pcs status"
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echo "true"
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fi
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else
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# if it is unknown to systemd, then it is pcmk managed
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if [[ -n $(is_systemd_unknown $service) ]]; then
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echo "true"
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elif [[ -n $(grep_is_cluster_controlled $service) ]] ; then
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echo "true"
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fi
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fi
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}
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function is_managed {
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local service=$1
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if [[ -n $(is_pacemaker_managed $service) || -n $(is_systemd_managed $service) ]]; then
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echo "true"
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fi
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}
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function check_resource_systemd {
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if [ "$#" -ne 3 ]; then
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echo_error "ERROR: check_resource function expects 3 parameters, $# given"
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exit 1
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fi
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local service=$1
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local state=$2
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local timeout=$3
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local check_interval=3
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if [ "$state" = "stopped" ]; then
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match_for_incomplete='active'
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else # started
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match_for_incomplete='inactive'
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fi
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log_debug "Going to check_resource_systemd for $service to be $state"
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#sanity check is systemd managed:
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if [[ -z $(is_systemd_managed $service) ]]; then
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echo "ERROR - $service not found to be systemd managed."
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exit 1
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fi
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tstart=$(date +%s)
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tend=$(( $tstart + $timeout ))
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while (( $(date +%s) < $tend )); do
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if [[ "$(systemctl is-active $service)" = $match_for_incomplete ]]; then
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echo "$service not yet $state, sleeping $check_interval seconds."
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sleep $check_interval
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else
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echo "$service is $state"
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return
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fi
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done
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echo "Timed out waiting for $service to go to $state after $timeout seconds"
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exit 1
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}
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function check_resource {
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local service=$1
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local pcmk_managed=$(is_pacemaker_managed $service)
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local systemd_managed=$(is_systemd_managed $service)
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if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
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log_debug "ERROR $service managed by both systemd and pcmk - SKIPPING"
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return
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fi
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if [[ -n $pcmk_managed ]]; then
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check_resource_pacemaker $@
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return
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elif [[ -n $systemd_managed ]]; then
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check_resource_systemd $@
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return
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fi
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log_debug "ERROR cannot check_resource for $service, not managed here?"
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}
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function manage_systemd_service {
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local action=$1
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local service=$2
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log_debug "Going to systemctl $action $service"
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systemctl $action $service
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}
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function manage_pacemaker_service {
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local action=$1
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local service=$2
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# not if pacemaker isn't running!
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if [[ -z $(pcmk_running) ]]; then
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echo "$(facter hostname) pacemaker not active, skipping $action $service here"
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elif [[ -n $(is_bootstrap_node) ]]; then
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log_debug "Going to pcs resource $action $service"
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pcs resource $action $service
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fi
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}
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function stop_or_disable_service {
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local service=$1
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local pcmk_managed=$(is_pacemaker_managed $service)
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local systemd_managed=$(is_systemd_managed $service)
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if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
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log_debug "Skipping stop_or_disable $service due to management conflict"
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return
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fi
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log_debug "Stopping or disabling $service"
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if [[ -n $pcmk_managed ]]; then
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manage_pacemaker_service disable $service
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return
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elif [[ -n $systemd_managed ]]; then
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manage_systemd_service stop $service
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return
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fi
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log_debug "ERROR: $service not managed here?"
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}
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function start_or_enable_service {
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local service=$1
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local pcmk_managed=$(is_pacemaker_managed $service)
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local systemd_managed=$(is_systemd_managed $service)
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if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
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log_debug "Skipping start_or_enable $service due to management conflict"
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return
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fi
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log_debug "Starting or enabling $service"
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if [[ -n $pcmk_managed ]]; then
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manage_pacemaker_service enable $service
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return
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elif [[ -n $systemd_managed ]]; then
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manage_systemd_service start $service
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return
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fi
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log_debug "ERROR $service not managed here?"
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}
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function restart_service {
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local service=$1
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local pcmk_managed=$(is_pacemaker_managed $service)
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local systemd_managed=$(is_systemd_managed $service)
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if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
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log_debug "ERROR $service managed by both systemd and pcmk - SKIPPING"
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return
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fi
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log_debug "Restarting $service"
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if [[ -n $pcmk_managed ]]; then
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manage_pacemaker_service restart $service
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return
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elif [[ -n $systemd_managed ]]; then
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manage_systemd_service restart $service
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return
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fi
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log_debug "ERROR $service not managed here?"
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}
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function echo_error {
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echo "$@" | tee /dev/fd2
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}
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# swift is a special case because it is/was never handled by pacemaker
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# when stand-alone swift is used, only swift-proxy is running on controllers
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function systemctl_swift {
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services=( openstack-swift-account-auditor openstack-swift-account-reaper openstack-swift-account-replicator openstack-swift-account \
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openstack-swift-container-auditor openstack-swift-container-replicator openstack-swift-container-updater openstack-swift-container \
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openstack-swift-object-auditor openstack-swift-object-replicator openstack-swift-object-updater openstack-swift-object openstack-swift-proxy )
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local action=$1
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case $action in
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stop)
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services=$(systemctl | grep openstack-swift- | grep running | awk '{print $1}')
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;;
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start)
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enable_swift_storage=$(hiera -c /etc/puppet/hiera.yaml 'enable_swift_storage')
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if [[ $enable_swift_storage != "true" ]]; then
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services=( openstack-swift-proxy )
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fi
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;;
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*) echo "Unknown action $action passed to systemctl_swift"
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exit 1
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;; # shouldn't ever happen...
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esac
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for service in ${services[@]}; do
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manage_systemd_service $action $service
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done
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}
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