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[FEAT] Implement Docker healthcheck #3631
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willianpaixao
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Nov 13, 2020
Fix smartcontractkit#3631 Implement a /healthcheck endpoint and adds a Docker healthcheck check.
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Thanks for this issue @willianpaixao! Added it as an |
willianpaixao
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Nov 24, 2020
Fix smartcontractkit#3631 Implement a /healthcheck endpoint and adds a Docker healthcheck check.
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Description
Add a simple
/healthcheckendpoint that simply returns 200 in case no error has been reported. In case of error, a different return code and a JSON returns otherwise.Motivation
To easily spot and automatically restart unresponsive containers.
Justification
Such a feature would improve the monitoring of the chainlink node, letting your monitoring tool quick know and restart a given container. [1]
Most modern orchestration tools (ECS, K8S, etc) can read this health status and automatically restart the service. [2] [3]
Additional Information
If the application is still responsive (working normally), a
docker pswould indicate the healthy status:CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e2722770cc7f smartcontract/chainlink:latest "chainlink local node" 3 minutes ago Up 3 minutes (healthy) chainlink