Update powershell command for hostname detection to avoid profiles and logo that could break detection #851
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…d logo that could break detection If a Windows system has a powershell profile that emits output, then it could pollute the output used to read the hostname value. Likewise with the powershell logo output, though I don't know if/when that logo appears -- it does not in apm-agent-nodejs' CI tests. Refs: elastic/apm-agent-nodejs#3899
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@SylvainJuge I think the Node.js and Java agents are the only ones that use this powershell command in their code for Windows hostname detection. |
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I've opened a draft PR to implement this in the Java agent : elastic/apm-agent-java#3556, if adding those extra parameters do not cause a regression that's probably enough for us to merge it and validate this spec change (unless you have a better way to test for it). |
SylvainJuge
approved these changes
Mar 11, 2024
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If a Windows system has a powershell profile that emits output, then it
could pollute the output used to read the hostname value. Likewise with
the powershell logo output, though I don't know if/when that logo
appears -- it does not in apm-agent-nodejs' CI tests.
Refs: elastic/apm-agent-nodejs#3899
Powershell CLI options are documented here: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_powershell_exe?view=powershell-5.1