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Add USE_OS_DNS_RESOLVER env var info#1268
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| `HTTP_PROXY`|HTTP proxy configuration for the outbound connection to the Checkly API, used for agent management and monitoring. Used if the proxy server does not accept HTTPS connections. `http://user:password@127.0.0.1:8080` | ||
| `JOB_CONCURRENCY`|(Default: 1, max: 10) Number of concurrent checks that are run by the agent. | ||
| `LOG_LEVEL`|(Default: `INFO`) Set the log level of the agent. Can be one of `DEBUG`, `LOG`, `INFO`, `WARN` or `ERROR`. | ||
| `USE_OS_DNS_RESOLVER`|When set to true, TCP checks will resolve hostnames using the OS’s default DNS settings (`dns.lookup()`), instead of direct DNS queries (`dns.resolve()`). This ensures resolution behaves like it would on the local system (e.g. Kubernetes service names). |
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Considering this is an advanced networking feature, I think we could go a bit lower-level in terms of describing what this env var does.
What do you think about this:
TCP checks will resolve DNS using the underlying
getaddrinfoC function of agent OS, instead of using the network. This enables easier DNS resolution for internal services e.g. services running in the same Kubernetes cluster.
ejanusevicius
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Apr 28, 2025
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Merging this as the agent /w this feature has been released. |
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