docker: move host path for hosts file mount to alloc dir #10823
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In Nomad 1.1.1 we generate a hosts file based on the Nomad-owned network namespace, rather than using the default hosts file from the pause container. This hosts file should be shared between tasks in the same allocation so that tasks can update the file and have the results propagated between tasks.
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tgross
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Jun 28, 2021
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LGTM; is this something we should call out in the upgrade notes? (as unlikely as anyone is doing so, currently tasks could modify this file independently and now they can't, right?) |
Seems worth calling out. |
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shoenig
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Jun 30, 2021
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This was referenced Aug 23, 2021
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I'm going to lock this pull request because it has been closed for 120 days ⏳. This helps our maintainers find and focus on the active contributions. |
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Fixes #10809
In Nomad 1.1.1 we generate a hosts file based on the Nomad-owned network
namespace, rather than using the default hosts file from the pause
container. This hosts file should be shared between tasks in the same
allocation so that tasks can update the file and have the results propagated
between tasks.