what is listening on the given port check connectivity of remote host (on given port) DNS lookup with dig (Domain Information Groper)
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Strangler pattern
When you need to migrate an old application into new technology, create a facade which routes requests. You can now migrate small parts of your old app and direct your clients into migrated parts once they are ready, but keep the whole app working and coherent. It is transparent for you clients whether they are […]
Read moreDeployment scenarios
Blue/green deployment – when deploying a new version of your application prepare and run all environment including your app without external access. You can then test it and if everything works fine – switch access to the new environment (disable the old version). Canary deployment – release the new version of your app to a […]
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