[Podman] Re: Why does Podman update the "Change" timestamp on files shared between host and guest ?

Hi Daniel, On 6/28/22 16:23, Daniel Walsh wrote: > On 6/28/22 03:15, Jacob Kroon wrote: >> Hi, >> >> I'm using Podman in my build environment. As part of the build I bind >> a directory from the host to a directory in the container. Even >> though the guest doesn't touch the file in any way, afterwards I can >> see that the file's "Change" timestamp has been updated, so I am >> assuming it is podman that does this. >> >> According to >> https://unix.stackexchange.com/questions/2464/timestamp-modification-time... >> >> the "Change" timestamp is described as "the last time meta data of >> the file was changed (e.g. permissions)". >> >> I am wondering what meta data it is that podman changes, and if it >> can be avoided somehow ? (Mainly because it tricks git/gitk into >> thinking something might have changed). >> [cut] > > Could you mount the volume :ro inside of the container and see if the > same thing happens? > Yup, same thing happens even if I mount it with :ro. > If it still happens, then we know it is Podman making the change as > opposed to the processes inside of the container. > > You could also  bind mount the volume readonly on itself, before using > podman to see if podman throws an error. I haven't tried this, let me know if this would be of help and I will give it a shot.

[pid 2886] lsetxattr("/home/jkroon/Projects/foobar-linux/foobar", "security.selinux", "system_u:object_r:container_file"..., 37, 0 <unfinished ...>