35 lines
1.1 KiB
Text
35 lines
1.1 KiB
Text
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#!/bin/bash
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# Fulcrum health check — managed by Ansible (roles/fulcrum)
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#
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# Checks that Fulcrum's Electrum TCP port is accepting connections, and records
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# the answer in the exit code, which systemd keeps:
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# systemctl is-failed fulcrum-healthcheck.service
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# That is a complete answer with no monitoring system involved. Reporting
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# elsewhere is optional and generic — set healthcheck_push_url.
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FULCRUM_HOST="{{ fulcrum_tcp_bind }}"
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FULCRUM_PORT={{ fulcrum_tcp_port }}
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PUSH_URL="${HEALTHCHECK_PUSH_URL:-}"
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check_fulcrum() {
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timeout 5 bash -c "echo > /dev/tcp/${FULCRUM_HOST}/${FULCRUM_PORT}" 2>/dev/null
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}
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report() {
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local status=$1 msg=$2
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# No push URL is normal, not an error: the exit code below is still a
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# complete answer for anything reading unit state.
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[ -n "$PUSH_URL" ] || return 0
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curl -s --max-time 10 --retry 2 -o /dev/null \
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"${PUSH_URL}?status=${status}&msg=${msg// /%20}&ping=" || true
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}
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if check_fulcrum; then
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report "up" "OK"
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exit 0
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else
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echo "Fulcrum TCP port ${FULCRUM_PORT} not responding"
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report "down" "Fulcrum TCP port not responding"
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exit 1
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fi
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