Jason Kulatunga
ad4b117f6e
Added ability to trigger collector at startup. Disabled by default, (enable by setting `-e COLLECTOR_RUN_STARTUP=true`) Added COLLECTOR_RUN_STARTUP_SLEEP env variable to specify seconds before calling scrutiny collector on first run, default sleep value = 1s.
29 lines
1.3 KiB
Bash
Executable File
29 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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# Cron runs in its own isolated environment (usually using only /etc/environment )
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# So when the container starts up, we will do a dump of the runtime environment into a .env file that we
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# will then source into the crontab file (/etc/cron.d/scrutiny)
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(set -o posix; export -p) > /env.sh
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# adding ability to customize the cron schedule.
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COLLECTOR_CRON_SCHEDULE=${COLLECTOR_CRON_SCHEDULE:-"0 0 * * *"}
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COLLECTOR_RUN_STARTUP=${COLLECTOR_RUN_STARTUP:-"false"}
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COLLECTOR_RUN_STARTUP_SLEEP=${COLLECTOR_RUN_STARTUP_SLEEP:-"1"}
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# if the cron schedule has been overridden via env variable (eg docker-compose) we should make sure to strip quotes
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[[ "${COLLECTOR_CRON_SCHEDULE}" == \"*\" || "${COLLECTOR_CRON_SCHEDULE}" == \'*\' ]] && COLLECTOR_CRON_SCHEDULE="${COLLECTOR_CRON_SCHEDULE:1:-1}"
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# replace placeholder with correct value
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sed -i 's|{COLLECTOR_CRON_SCHEDULE}|'"${COLLECTOR_CRON_SCHEDULE}"'|g' /etc/cron.d/scrutiny
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if [[ "${COLLECTOR_RUN_STARTUP}" == "true" ]]; then
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sleep ${COLLECTOR_RUN_STARTUP_SLEEP}
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echo "starting scrutiny collector (run-once mode. subsequent calls will be triggered via cron service)"
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/opt/scrutiny/bin/scrutiny-collector-metrics run
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fi
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# now that we have the env start cron in the foreground
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echo "starting cron"
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su -c "cron -f -L 15" root
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