How to? Create or edit file with qm guest agent

[jmjosebest]

Hello,

I'm trying to create /test.file with a test content, inside a VM.

Running directly in the VM, normally I can do:

echo test > /test.file

So, I expected that running this will work...

qm guest exec 100 echo test -- "> /test.file"

But seems is not working...

There is any way to do?

Thanks!

 

[jmjosebest]

Found a solution

pvesh create /nodes/ns1000/qemu/100/agent/file-write --content "$(echo -e 'test')" --file "/test.file"

But it's strange that we can not do this with qm agent...

 

[dcsapak]

yes you can do it but you have to use a different command
guest agent executes a single program, not a shell, so if you want to use shell redirection you have to manually invoke the shell, e.g.

qm guest exec 100 -- /bin/sh -c "echo test > /test.file"

 

[mietz]

I wrote a python script / wrapper for this, it also lets you transfer files bigger than 1 MiB by transferring them in chunks. But don’t expect it to be fast:
https://github.com/mietzen/proxmox-qm-file

 

[iwik]

But this should handle agent itself https://qemu-project.gitlab.io/qemu/interop/qemu-ga-ref.html#qapidoc-42 but there is 48MB limit.