38 lines
1 KiB
Bash
38 lines
1 KiB
Bash
#!/bin/bash
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set -euo pipefail
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# Proton Bridge healthcheck — probes all 4 ports in parallel.
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# Exit 0 = healthy, 1 = unhealthy (Docker HEALTHCHECK contract).
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TIMEOUT=5 # seconds per probe
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check_smtp() {
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local port=$1
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echo 'QUIT' | socat -T${TIMEOUT} - TCP4:localhost:${port} 2>/dev/null \
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| grep -q '^220'
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}
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check_imap() {
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local port=$1
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printf 'A1 LOGOUT\r\n' | socat -T${TIMEOUT} - TCP4:localhost:${port} 2>/dev/null \
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| grep -q '^\* OK'
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}
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# Fire all probes in parallel, capture PIDs
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check_smtp 25 & PID_SMTP_25=$!
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check_imap 143 & PID_IMAP_143=$!
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check_smtp 1025 & PID_SMTP_1025=$!
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check_imap 1143 & PID_IMAP_1143=$!
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# Collect results — || prevents set -e from exiting early on probe failure
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FAIL=0
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wait $PID_SMTP_25 || { echo "FAIL smtp:25"; FAIL=1; }
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wait $PID_IMAP_143 || { echo "FAIL imap:143"; FAIL=1; }
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wait $PID_SMTP_1025 || { echo "FAIL smtp:1025"; FAIL=1; }
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wait $PID_IMAP_1143 || { echo "FAIL imap:1143"; FAIL=1; }
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if [[ $FAIL -eq 0 ]]; then
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echo "OK smtp:25 imap:143 smtp:1025 imap:1143"
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fi
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exit $FAIL
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