Inspecter les healthchecks Docker
Boris HUISGEN
L’inspection des évènements Docker permet de détecter les containers dont les fréquences d’exécution des healthchecks est trop aggressive.
Pour analyser l’exécution des commandes healthcheck, le filtre d’évènements à appliquer est exec_start :
$ docker system events --filter event=exec_start
2017-01-19T14:53:32.979634882+01:00 container exec_start: /bin/sh -c /etc/cont-consul/check || exit 1 fa7c8221a53e2a76e61f290c4008f67ea2548b923cc42a11e9234ee0db4cab54 (com.docker.compose.config-hash=b4b13e5e0066bd757aa944cc01869736eb1d150ac04516e19028d070ef5f502c, com.docker.compose.container-number=1, com.docker.compose.oneoff=False, com.docker.compose.project=dev, com.docker.compose.service=zabbix-agent, com.docker.compose.version=1.9.0, image=registry.hbis.fr/base/zabbix-agent, name=dev_zabbix-agent_1)
2017-01-19T14:53:33.985556968+01:00 container exec_start: /bin/sh -c /etc/cont-consul/check || exit 1 a009ecbbb3cdce6da2bdf6ae073b9d323bcc2921eafc82206f7e4719e37a617a (com.docker.compose.config-hash=2e83302dfa763cf4185883bed56a64cd8e9207d3a78f06fd250bc158aafedde6, com.docker.compose.container-number=1, com.docker.compose.oneoff=False, com.docker.compose.project=dev, com.docker.compose.service=rabbitmq, com.docker.compose.version=1.9.0, image=registry.hbis.fr/base/rabbitmq, name=dev_rabbitmq_1)
2017-01-19T14:53:35.252389013+01:00 container exec_start: /bin/sh -c /etc/cont-consul/check || exit 1 a7398fd76d95544ac6cd8d02fbacb9608d5fd3443c1afb4fa0b4606dc032476c (com.docker.compose.config-hash=3c3cae569ff98e6a7e91b8e6734bfed22e9c5df90c8bd593539ef4876e2bda25, com.docker.compose.container-number=1, com.docker.compose.oneoff=False, com.docker.compose.project=dev, com.docker.compose.service=mariadb, com.docker.compose.version=1.9.0, image=registry.hbis.fr/base/mariadb, name=dev_mariadb_1)
2017-01-19T14:53:39.875116453+01:00 container exec_start: /bin/sh -c /etc/cont-consul/check || exit 1 1f41e9a3b5b63601042dbf5dcd758342e217f0f5d5685d76e9f61b2a2c155a5a (com.docker.compose.config-hash=733b83db2c39e867d08158e3101decdc5e3d70fa0653fea7f44139e29b47d2fa, com.docker.compose.container-number=1, com.docker.compose.oneoff=False, com.docker.compose.project=dev, com.docker.compose.service=dynamodb, com.docker.compose.version=1.9.0, image=registry.hbis.fr/base/dynamodb, name=dev_dynamodb_1)