PMM3 client can not write pmm.yaml config

[PatrickWolleb]

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PMM3 agent can not read or write pmm.yaml config. File system differs from pmm-agent config path.

Actual
pmm fails to connect to pmm server.

Config file /usr/local/percona/pmm2/config/pmm-agent.yaml is not writable: no such file or directory.time="2025-03-14T14:53:54.287+00:00" level=info msg="'pmm-agent setup' exited with 1" component=entrypoint

Expected
pmm agent can connect to pmm server

More info
When checking the file system the directory on the file system ist different from the value being passed as env var. /usr/local/percona/pmm2 instead of /usr/local/percona/pmm

More about the problem

Config file /usr/local/percona/pmm2/config/pmm-agent.yaml is not writable: no such file or directory.time="2025-03-14T14:53:54.287+00:00" level=info msg="'pmm-agent setup' exited with 1" component=entrypoint

Steps to reproduce

1. install pmm server 3.0.0
2. Install percona operator
3. create cluster with pmm agent 3.0.0 enabled

Versions

1. Kubernetes 1.31
2. Operator 1.19.1
3. Database 6.0.20

Anything else?

When checking the file system the directory on the file system ist different from the value being passed as env var. /usr/local/percona/pmm2 instead of /usr/local/percona/pmm

[hors]

PSMDB operator does not support PMM3. We will add support in PSMDBO 1.21.0.

[dbazhenov]

JIRA issue where PMM 3 support will be implemented so you can track.
https://perconadev.atlassian.net/browse/K8SPSMDB-1268