repl_health.sh
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repl_health.sh
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	#!/bin/bash

	source /source_env.sh

	# Do not attempt to write to slave
	if [[ ! -z ${REDIS_SLAVEOF_IP} ]]; then
	REDIS_CMDLINE="redis-cli -h ${REDIS_SLAVEOF_IP} -p ${REDIS_SLAVEOF_PORT} -a ${REDISPASS} --no-auth-warning"
	else
	REDIS_CMDLINE="redis-cli -h redis -p 6379 -a ${REDISPASS} --no-auth-warning"
	fi

	# Is replication active?
	# grep on file is less expensive than doveconf
	if [ -n ${MAILCOW_REPLICA_IP} ]; then
	${REDIS_CMDLINE} SET DOVECOT_REPL_HEALTH 1 > /dev/null
	exit
	fi

	FAILED_SYNCS=$(doveadm replicator status \| grep "Waiting 'failed' requests" \| grep -oE '[0-9]+')

	# Set amount of failed jobs as DOVECOT_REPL_HEALTH
	# 1 failed job for mailcow.local is expected and healthy
	if [[ "${FAILED_SYNCS}" != 0 ]] && [[ "${FAILED_SYNCS}" != 1 ]]; then
	printf "Dovecot replicator has %d failed jobs\n" "${FAILED_SYNCS}"
	${REDIS_CMDLINE} SET DOVECOT_REPL_HEALTH "${FAILED_SYNCS}" > /dev/null
	else
	${REDIS_CMDLINE} SET DOVECOT_REPL_HEALTH 1 > /dev/null
	fi