Enabled host management features - blkid: executable file not found

[agafonovdmitry]

Installed on Debian 11 stock docker.io with enabled swarm mode.

Enabled host management features in Setup.

See this trying browse swarm node:
WARNING: failed to read disk partuuid of /dev/sda1 : exec: "blkid": executable file not found in $PATH
WARNING: failed to read disk partuuid of /dev/sda14 : exec: "blkid": executable file not found in $PATH
WARNING: failed to read disk partuuid of /dev/sda15 : exec: "blkid": executable file not found in $PATH

blkid is installed on host and its root fs is mounted as /host for agent service.

[tamarahenson]

@agafonovdmitry

Can you post your install command?

Thanks!

[agafonovdmitry]

That was Hetzner cloud VM from Debian 11 image. Cannot say anything special...

• Installed docker.io package as normal, enabled swarm mode (for single node) as per manual.
• Installed portainer stack as per instructions on site for particular environment.
• Everything went okay and totally normal as usual. Portainer is great at this: just works!

I have noticed new "host management" feature and enabled it. Some information did not shown, I suppose, and those messages appeared in agent logs. Agent was configured for host management as needed and I could run blkid by hands.

Setup is in production, so I cannot do further testing around it, sorry.

[knutster]

Same issue on a vanilla ubuntu 22.04 server with docker installed via the official guide. Seeing the behaviour on standalone docker and swarm instances.

[gs4711]

Typical case, where the included libraries seems to have some contraints (which aren't recognized by the developer using them). The library https://github.com/jaypipes/ghw?tab=readme-ov-file#block-storage used here, clearly states:

NOTE: ghw looks in the udev runtime database for some information. If you are using ghw in a container, remember to bind mount /dev/disk and /run into your container, otherwise ghw won't be able to query the udev DB or sysfs paths for information.

The go script does the following on system level:

2711985 execve("/sbin/blkid", ["blkid", "-s", "PARTUUID", "/dev/sda1"], 0xc000218000 /* 16 vars */) = -1 ENOENT (No such file or directory)

Therefore, the container has to be expanded by, i.e.

FROM alpine:latestAS builder
RUN apk add --no-cache util-linux
FROM portainer/agent:latest
COPY --from=builder /sbin/blkid                         /sbin/blkid
COPY --from=builder /usr/lib/libblkid.so*               /usr/lib/
COPY --from=builder /usr/lib/libeconf.so*               /usr/lib/
COPY --from=builder /bin/sh                             /bin/sh
COPY --from=builder /lib                                /lib