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Make it a real struct with methods. This noticeably increases
the ergonomics and design of the API.
The main goal here is to introduce the enum which defines whether or not the
rootfs is mutable or not. We move the "rofiles" mode from the RPM script code
down into the bwrap layer, which will make it easier to reuse for treecompose.
Closes: #560
Approved by: jlebon
I was planning to do some further changes here, and I really don't like the
manual fork/exec stuff on in the --reproducible checks. Our subprocess code
should basically be all bwrap. Synchronous code execution while not reading from the
pipe is a recipe for deadlocks.
What simplifies things a lot is to write to an `O_TMPFILE` fd (or a tempfile on
legacy kernels), and slightly extend our bwrap-executing code to support a child
setup function, so we can set the tmpfile fd to be stdout.
Now that we have a shell script wrapper we inject, it's trivial to reimplement
the "detect reproducibility" in shell script there, rather than C.
This doesn't matter much for treecompose today, but it will matter more when
we're supporting client side initramfs regeneration, since now the dracut
container can be fully immutable.
Closes: #560
Approved by: jlebon
This is basically a re-implementation of
85c9dd5c07
for the same reasons: it makes things work for rpm-ostree running
inside NixOS. But there are other cases where if e.g. an unprivileged
user runs rpm-ostree and may not have `/usr/sbin` in PATH, we still
want the container to pick it up, etc.
While changing things I nuked the hacky `RPMOSTREE_DEBUG_SCRIPT` env
var, we can re-add it later in a better way if needed.
Closes: #490
Approved by: jlebon
It turns out it was buggy (for some reason `PS1` wasn't propagating),
and furthermore, things mostly work if one enables `--new-chroot` i.e.
`systemd-nspawn`, which is what Fedora is going to do, and everyone
else in the world uses Docker.
While we're here, tweak the error message to use `<>` around the URL
which makes it more easily clickable from terminals.
Closes: #449
Approved by: jlebon
Decided to test this on Sunday evening. Of course it was broken =(
(Actually I tested mock-in-Docker but it should be the same)
The core problem is that mock does `chroot()` without using `/`
as a mount point. This breaks an assumption in bwrap that it is.
Now, in theory we could move this same logic down into bwrap to
work around this situation, but for now let's hack it here.
Mock is old, legacy container code that doesn't really do anything
in a modern way - in fact our goal should be to replace it
with a combination of rpm-ostree and bwrap. So carrying this
hack here to get us to that future should be OK for now.
Closes: #431
Approved by: jlebon
I want a better error message if the user happens to execute
inside e.g. a Docker container without sufficient privileges
for recursive containerization.
Closes: #429
Approved by: jlebon
The treecompose code will learn how to use bwrap instead of
libcontainer in libglnx, since the latter is a buggy copy of a subset
of the former.
Closes: #429
Approved by: jlebon
