Make runtime directly into squashfs image. This reduces largely
unreproducible ext4 layer, but requires anaconda's dracut module
modification to properly mount the image.
And in an intermediate version it returns a VectorString object which
isn't serializable by the json or toml modules.
So convert it to a list so that the type is consistent in the sources
code.
Some files are created in non-reproducible way, including including
random data explicitly (/etc/machine-id), timestamps (fontconfig cache,
ldconfig aux-cache, certs cache), or entries in random order (groups,
systemd catalog, package list).
Fix this by either making the files reproducible, or removing them.
By default mkfs.mksdos choose volume id based on current time. If
SOURCE_DATE_EPOCH is set, use that instead.
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
The previous method worked, but wasn't exactly idiomatic. This is more
correct, and appears to work the same (templates depsolve, version globs
work, multiple repos work).
Note that this does use a private dnf attribute ._goal, but the word is
that this is going to become a public api soon, so yes it is there on
purpose.
Depending on how lorax-composer is run setting up an empty blueprints
directory can fail. So this moves checking/creation until after the
other directories are created and uses make_owned_dir to make sure
ownership is correct.
It needs to be root in order to set the ownership and permissions on the
directories that are under /var/lib/lorax/composer/
Refactor the directory creation into a utility function, and use a umask
of 0o006 to ensure that the parent directories created do not have o+rw
set on them (makedirs behavior is different between Python 3.6 and 3.7
so umask of 0 doesn't work consistently).
Images don't work without these fixes:
* Enable Network Manager.
* Disable cloud-init.
* Add Hyper-V modules into initramfs.
Fixes specific for RHEL:
* Create ifcfg-eth0 required by waagent.
* Install python3 and net-tools required by waagent.
Recommended changes:
* Use recommended kernel boot args.
* Disable kdump.
Since these images can be used to create multiple machines, they should
not have a unique machine-id attached to them. Replace /etc/machine-id
with an empty file so that it will be regenerated at boot time.
If a package is in multiple repos dnf may return more than 1 of them
when using best...glob so we pick the highest NEVRA one and install
that.
Related: rhbz#1636239
At the end of disk image installs, use fstrim on the generated filesystem to
discard any blocks that were allocated during the install and are now unused.
This will allow tools such as qemu-img to create images that do not include
deleted data.
For raw disk images that do not go through qemu-img, use fallocate --dig-holes
to create sparse holes in place of the unused blocks.
composer-cli uses TOML for 'blueprints save' which was returning an
empty 200 response if the blueprint didn't exist. Change this to return
a standard 400 error response if the blueprint doesn't exist.
composer-cli is already setup to handle receiving json when an error is
returned so just the toml API response for `blueprints/save` needed to
be changed.
`os.path.exists("/run/weldr/api.socket")` returns False for users which have no
access. This leads to composer printing that the file does not exist, which is
misleading.
Since it's no possible to distinguish the two cases, fix this problem by
combining them and showing a single error message.
Anaconda requires the root password to be set or locked, so if there
isn't anything setting it we write out 'rootpw --lock'
Also adds tests for this.
Resolves: rhbz#1626122
Also kill the lorax-composer process and remove /run/weldr/api.socket
so that when this is run with podman you don't get an error about
attempting to tar up the socket.
See https://bugzilla.redhat.com/show_bug.cgi?id=1595917 and
https://github.com/rpm-software-management/dnf/pull/1200 for
more on this. Briefly, DNF before 3.0 presented this config
value as a list...and mutating it worked. DNF from 3.0 until
3.6 presented it as a list...mutating it didn't work, but also
didn't *fail*, so this has actually not been doing anything on
DNF 3.x but we haven't noticed.
In DNF 3.6 values like this are presented as tuples instead of
lists, to try and catch usages like this, and it worked! We
need to change this one.
There is an additional weirdness here. tsflags is actually, in
libdnf terms, an OptionStringListAppend option: that means that
when something tries to *set* its value, the new value is just
appended to the existing list of values. This is very weird
behaviour when you're interacting with it like this, but
happens to be quite useful, as we can just 'set' the value to
a list like this and it will actually get appended (which is
what we want), and this one syntax happens to work correctly in
DNF 2.x, 3.0 through 3.5.1, and 3.6.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
