42 lines
2.1 KiB
Bash
42 lines
2.1 KiB
Bash
#!/bin/bash
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set -u
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# ./pacemaker_restart_bundle.sh galera-bundle galera
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RESOURCE=$1
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TRIPLEO_SERVICE=$2
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: ${TRIPLEO_MINOR_UPDATE=false}
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# try to restart only if resource has been created already
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if /usr/sbin/pcs resource show $RESOURCE; then
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if [ x"${TRIPLEO_MINOR_UPDATE,,}" != x"true" ]; then
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# During a stack update, this script is called in parallel on
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# every node the resource runs on, after the service's configs
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# have been updated on all nodes. So we need to run pcs only
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# once (e.g. on the service's boostrap node).
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echo "$(date -u): Restarting ${RESOURCE} globally"
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/usr/bin/bootstrap_host_exec $TRIPLEO_SERVICE /sbin/pcs resource restart --wait=__PCMKTIMEOUT__ $RESOURCE
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else
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# During a minor update workflow however, a host gets fully
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# updated before updating the next one. So unlike stack
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# update, at the time this script is called, the service's
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# configs aren't updated on all nodes yet. So only restart the
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# resource locally, where it's guaranteed that the config is
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# up to date.
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HOST=$(facter hostname)
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# XPath rationale: as long as there is a bundle running
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# locally and it is managed by pacemaker, no matter the state
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# of any inner pcmk_remote or ocf resource, we should restart
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# it to give it a chance to read the new config.
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# XPath rationale 2: if the resource is being stopped, the
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# attribute "target_role" will be present in the output of
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# crm_mon. Do not restart the resource if that is the case.
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if crm_mon -r --as-xml | xmllint --format --xpath "//bundle[@id='${RESOURCE}']/replica/resource[@managed='true' and (not(boolean(@target_role)) or (boolean(@target_role) and @target_role!='Stopped'))]/node[@name='${HOST}']/../.." - &>/dev/null; then
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echo "$(date -u): Restarting ${RESOURCE} locally on '${HOST}'"
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/sbin/pcs resource restart --wait=__PCMKTIMEOUT__ $RESOURCE "${HOST}"
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else
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echo "$(date -u): Resource ${RESOURCE} currently not running on '${HOST}', no restart needed"
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fi
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fi
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fi
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