Quoting Binknight ([email protected]):
> hi,
> i have two processes running in two containers on the same hardware node,
> they are expected to communicate with shared memory IPC mechanism, but it
> turned out to be failed. It seems that the shared memory created in one
> container is not visible to process in other container because different
> namespace. is there any way to address this problem？
Hm, I thought you could specify the namespaces to be unshared in
lxc.conf, but I see you can't. Given the flexibility that lxc
strives toward I find that surprising. Please feel free to write
a simple patch to add an lxc.ns option to lxc.conf, and use that
in start.c to pick the namespaces to unshare.
Then you would create a shell in a new IPC ns,
lxc-unshare -s IPC -- /bin/bash
and from there start the two containers without IPC in their clone
flags, so that they would share an IPC ns with each other, but not
with the host.
-serge
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