Lyncoln
ec2077f979
Extract PostgreSQL, Podman runtime and systemd lifecycle adapters while preserving existing lifecycle and scoring behavior. Update RPM layout and add guarded operator-run lab harnesses. Record successful manual stop/start, promotion, demotion and rewind-only rejoin with pinned installed hashes. The unfenced lab does not validate automatic failover, Pacemaker-managed transitions or divergent-data rewind. Validation: 103 offline tests, original-function differential checks, checksum manifest and whitespace checks passed.
114 lines
3.4 KiB
Bash
114 lines
3.4 KiB
Bash
# Shared OCF scoring wrappers; application policy is supplied by the plugin.
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# Promotion scores are scoped by Pacemaker to OCF_RESOURCE_INSTANCE and the
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# executing node. Do not construct a legacy attribute name or cache locally:
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# querying attrd on every observation also repairs a lost transient attribute.
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mc_promotion_score_set()
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{
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local score="$1" current
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local resource="${MC_PROMOTION_RESOURCE_INSTANCE:-}"
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if [ -z "${resource}" ]; then
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ocf_log warn "Cannot publish promotion score without OCF_RESOURCE_INSTANCE"
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return 1
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fi
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case "${score}" in
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1000|100|50|-INFINITY) ;;
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*) return 1 ;;
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esac
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current="$(
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timeout --kill-after=1s 2s crm_attribute \
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--promotion="${resource}" --lifetime=reboot \
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--query --quiet 2>/dev/null
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)" || current=""
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[ "${current}" = "${score}" ] && return 0
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if ! timeout --kill-after=1s 2s crm_attribute \
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--promotion="${resource}" --lifetime=reboot \
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--update="${score}" >/dev/null 2>&1
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then
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ocf_log err "Unable to publish promotion score ${score} for ${resource}; prior score may remain"
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return 1
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fi
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return 0
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}
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mc_promotion_score_from_monitor()
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{
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local monitor_rc="$1" score=-INFINITY
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case "${monitor_rc}" in
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"${OCF_RUNNING_PROMOTED}") score=1000 ;;
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"${OCF_SUCCESS}")
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score="$(mc_application_standby_score)" || score=-INFINITY
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;;
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esac
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case "${score}" in
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1000|100|50|-INFINITY) ;;
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*) score=-INFINITY ;;
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esac
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mc_promotion_score_set "${score}"
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}
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# Score publication must not change OCF role detection or its return code.
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mc_promotion_monitor()
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{
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local monitor_rc
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mc_application_monitor
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monitor_rc=$?
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mc_promotion_score_from_monitor "${monitor_rc}" || true
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return "${monitor_rc}"
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}
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# Lifecycle functions retain their original checks, commands and return codes.
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# Withdraw the previous score before any transition (including validation
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# failure), then reassess only after success. Their internal monitor calls do
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# not publish scores, so they cannot restore a positive score mid-transition.
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mc_promotion_action()
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{
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local action="$1" action_rc monitor_rc
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case "${action}" in
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start|stop|promote|demote|rejoin) ;;
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*) return "${OCF_ERR_UNIMPLEMENTED}" ;;
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esac
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mc_promotion_score_set -INFINITY || true
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if [ "${action}" != stop ]; then
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mc_promotion_validate
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action_rc=$?
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[ "${action_rc}" -eq "${OCF_SUCCESS}" ] || return "${action_rc}"
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fi
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mc_application_action "${action}"
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action_rc=$?
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if [ "${action_rc}" -eq "${OCF_SUCCESS}" ] && [ "${action}" != stop ]; then
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mc_application_monitor
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monitor_rc=$?
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mc_promotion_score_from_monitor "${monitor_rc}" || true
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fi
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return "${action_rc}"
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}
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mc_promotion_validate()
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{
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local utility
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if ! [[ "${OCF_RESKEY_disconnected_max_age:-300}" =~ ^(0|[1-9][0-9]{0,4})$ ]]; then
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ocf_exit_reason "disconnected_max_age must be an integer from 0 to 99999 seconds"
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return "${OCF_ERR_CONFIGURED}"
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fi
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for utility in crm_attribute timeout python3; do
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if ! command -v "${utility}" >/dev/null 2>&1; then
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ocf_exit_reason "Required promotion scoring command '${utility}' is not installed"
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return "${OCF_ERR_INSTALLED}"
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fi
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done
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mc_application_validate
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}
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