Start fluentd as non-root user

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Vivianmeme

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Aug 10, 2021, 2:28:10 AM8/10/21

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Hi,

I'm trying to bring up fluentd container as a non-root user(e.g. fluentd) within k8s cluster.

bash-4.1$ id

uid=999(fluent) gid=999(fluentd) groups=999(fluentd)

However met the following read-only filey system error:

Screen Shot 2021-08-09 at 11.12.06 PM.png

If adding the user and group options, the Operation not permitted error being thrown: Screen Shot 2021-08-09 at 11.12.27 PM.png

Do I have to build a new image which gives the user "fluent" enough permission?

Any help is appreciated:)

Vivian

Vivianmeme

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Aug 12, 2021, 9:57:22 PM8/12/21

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Ok, I fixed it.

The root cause is that /tmp is read-only for non-root user inside fluentd container. And this issue can be resolved by mounting a volume (empty dir type) to fluentd.