TL;DR
Is there a patch available to allow substitution of "array" parameters
into the strings used for exec.prestart, exec.poststop, and the like?
Longer:
I'd like to be able to use array parameters in exec.* commands,
but trying to do so results in
jail: test-two: exec.prestart: array cannot be substituted inline
A quick check of the source didn't suggest it would work, but the
bash-isms ${host.interface[*]} and ${host.interface[@]} failed too.
The immediate application is in creating what will be the vnet.interface(s)
using netgraph on the appropriate host interfaces
vnet.interface = ng0, ng1;
Works well, once the interfaces are created, but I'd rather not have
to define that list twice in each jail.
If I could write something like:
vnet.interface = ng0, ng1;
host.interface = re0, re0.100;
and then iterate over them in the prestart and poststop scripts to:
* Create ng0 connected to re0
* Create ng1 connected to re0.100
it would be easier to maintain than having to write something like:
vnet.interface = ng0, ng1;
parent.interfaces = "re0 re0.100";
cloned.interfaces = "ng0 ng1";
I'm open to ideas here, including if I can somehow "write back" to
vnet.interface based on exec.prestart parsing the "custom" variables.
TIA,
Jeff
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