feat(internal): Add VECTOR_HOSTNAME env variable #21789
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By default, Vector uses the hostname returned by the gethostname. However, in cases when Vector is running in containers, it is meaningless because hostname is always the name of the container, e.g., the name of a pod in Kubernetes cluster.
This commit adds the way to override a hostname by using the env variable. In Kubernetes it can be used like this to see the name of a node where the Vector process is running (which is more meaningful).
```
env:
- name: VECTOR_HOSTNAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
```
Signed-off-by: maksim.nabokikh <[email protected]>
pront
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Nov 14, 2024
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Hi @nabokihms, thank you for this enhancement. Please also document this new env var in website/cue/reference/cli.cue.
(Tangential to this PR: #21794)
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Signed-off-by: maksim.nabokikh <[email protected]>
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urseberry
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Nov 15, 2024
changelog.d/21789_add_vector_hostname_env_variable.enhancement.md
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Co-authored-by: Ursula Chen <[email protected]>
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Summary
By default, Vector uses the hostname returned by the gethostname. However, in cases when Vector is running in containers, it is meaningless because hostname is always the name of the container, e.g., the name of a pod in Kubernetes cluster.
This commit adds the way to override a hostname by using the env variable. In Kubernetes it can be used like this to see the name of a node where the Vector process is running (which is more meaningful).
Change Type
Is this a breaking change?
How did you test this PR?
Tested manually in the kubernetes cluster.
Does this PR include user facing changes?
Checklist
Cargo.lock), pleaserun
dd-rust-license-tool writeto regenerate the license inventory and commit the changes (if any). More details here.References
Closes #20481