This commit tweaks the argument handling based on the suggestion
by Achilleas and Ondrej (thanks!). Now it takes
```console
$ image-builder manifest qcow2 ./path/to/blueprint
...
$ image-builder manifest --arch s390x --distro centos-9 qcow2
...
```
If no arch is specified the hostname arch is used. If no distro
is specified in either the blueprint or the commandline it is
auto-detected based on the host.
Note that if the distro from the comandline and the blueprint
diverge an error is raised. We can relax this rule and just
add precedence, e.g. commandline always overrides the blueprint
but ideally we would have a clear use-case here so we start
conservative and can always relax this rule later (the inverse
is much harder).
This means it is no longer copy/paste friendly from `list-images`
by default but instead we can provide a new
`list-images --output=shell` option that outputs in exactly the
format that `image-builder [manifest|build]` need.
This commit adds an integration test for the container resolving
when generating a manifest. This is sadly quite indirect right now
because `manifestgen` needs some more support from `images` and
the `distro_test` code there (that will hopefully come soon(ish)).
This commit implements the `manifest` command for `image-builder`.
It will generate an osbuild manifest based on the given inputs,
e.g.:
```
$ ./image-builder manifest centos-9 qcow2
{"version":"2","pipelines":[{"name":"build","runner":",...
```
Note that there is an integration test but because of the depsolve
it will be slow. It will be skipped when doing `go test -short`.
This commit adds a `--datadir` override that allows overriding
the default search paths for e.g. the custom repositories. In
practise only repository overrides are supported because that
is the only data stored there.
This commit adds the new `image-builder` binary. This binary is
meant to build images from the CLI without the need to setup a
daemon. The main use-case is CI/CD and admins running this in
scripts or ad-hoc. The CLI should be pleasant to use.
This first commit adds the `list-images` command which is a thin
wrapper around functionality from the `osbuild/images` library.
It will list all buildable images by default and can be trimmed
down further via `--filter` which supports the filtering from
the `images` library, see https://github.com/osbuild/images/pull/1015
It also supports `--output` which will output the result in the
given format. Currently "text" and "json" are supported.
Note that this will not work on it's own yet, it will need an
installed image-builder to get the repositories. This will need
to get fixed via either:
1. a dependency package for `ibuilder` that carries all the repos
2. a shared repo that contains the repos
3. using go:embed to get them (see images#1038)
