53 lines
1.9 KiB
Django/Jinja
53 lines
1.9 KiB
Django/Jinja
#!/bin/sh
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# SPDX-FileCopyrightText: 2025 Dosh LLC
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set +x
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if [ "$1" = "-e" ]; then
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set -x
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logger="command echo"
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shift
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else
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logger="command logger -t {{ HEALTHCHECK_FILE_NAME }}"
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fi
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HEALTHCHECK_TMP_FILE=$({{ MKTEMP_BIN_ABSOLUTE_PATH }} /tmp/hc_log_{{HEALTHCHECK_FILE_NAME}}.XXXXXX)
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# From the following link, this removes the file for effectively most things
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# except through the file descriptor or something like /proc/$PID/fd/$FD.
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# It should be cleaned up after the process dies through any means (crash/close/exit/etc.)
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# https://unix.stackexchange.com/questions/181937/how-create-a-temporary-file-in-shell-script
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exec 3>"$HEALTHCHECK_TMP_FILE" # For Writing: echo -n 'Foo' >&3
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exec 4<"$HEALTHCHECK_TMP_FILE" # For Reading: cat <&4
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rm "$HEALTHCHECK_TMP_FILE"
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HC_START_RESPONSE=$({{ CURL_BIN_ABSOLUTE_PATH }} --write-out '%{http_code}' --silent --output /dev/null -m 10 --retry 5 "{{ _hc_ping_url }}/start")
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if [ "$HC_START_RESPONSE" -ne 200 ]; then
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$logger "WARN: Unable to contact healthchecks for status updates."
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$logger "WARN: Check will continue without healthcheck logging."
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fi
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HEALTHCHECK_CONTENT_HEADER="Content-Type: text/plain"
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EXIT_STATUS=0
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{% raw %}{
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{% endraw %}
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##########################################
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# Conditional Healthcheck Specific Logic #
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##########################################
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{{ HEALTHCHECK_FILE_CONTENT }}
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##########################################
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{% raw %}} 2>&3 1>&3
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{% endraw %}
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HC_STOP_RESPONSE=$({{ CURL_BIN_ABSOLUTE_PATH }} --write-out '%{http_code}' --silent --output /dev/null -m 10 --retry 5 --header "${HEALTHCHECK_CONTENT_HEADER}" --data "$(cat <&4)" "{{ _hc_ping_url }}/$EXIT_STATUS")
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if [ "$HC_STOP_RESPONSE" -ne 200 ]; then
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$logger "WARN: Unable to contact healthchecks for status update."
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fi
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if [ "$EXIT_STATUS" -ne 0 ]; then
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$logger "ERROR: user script failure"
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exit "$EXIT_STATUS"
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fi
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