Red Hat build of MicroShift

Add the MicroShift service to a blueprint

Adding the MicroShift RPM package to an image builder blueprint enables the build of a RHEL for Edge image with MicroShift embedded.

Procedure

Use the blueprint installed in the /usr/share/microshift/blueprint directory that is specific to your platform architecture. See the following example snippet for an explanation of the blueprint sections:
Generated image builder blueprint example snippet
```
name = "microshift_blueprint"
description = "MicroShift 4.20.1 on x86_64 platform"
version = "0.0.1"
modules = []
groups = []

[[packages]]
name = "microshift"
version = "4.20.1"
...
...

[customizations.services]
enabled = ["microshift"]

[customizations.firewall]
ports = ["ssh"]
...
...

[[containers]]
source = "quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:f41e79c17e8b41f1b0a5a32c3e2dd7cd15b8274554d3f1ba12b2598a347475f4"

[[containers]]
source = "quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:dbc65f1fba7d92b36cf7514cd130fe83a9bd211005ddb23a8dc479e0eea645fd"
...
…
EOF
```
- [[packages]] name = "microshift": references for all non-optional MicroShift RPM packages using the same version compatible with the microshift-release-info RPM.
- [customizations.services] enabled = ["microshift"]: references for automatically enabling MicroShift on system startup and applying default networking settings.
- [[containers]] source = "quay.io/openshift-release-dev/…: references for all non-optional MicroShift container images necessary for an offline deployment. The SHA depends on the release you are using.
Add the blueprint to the image builder by running the following command:
```
$ sudo composer-cli blueprints push microshift_blueprint.toml
```

Verification

Verify the image builder configuration listing only MicroShift packages by running the following command:

$ sudo composer-cli blueprints depsolve microshift_blueprint | grep microshift

Example output

blueprint: microshift_blueprint v0.0.1
    microshift-release-info-4.20.1-202511250827.p0.g4105d3b.assembly.4.20.1.el9.noarch
    microshift-4.20.1-202511250827.p0.g4105d3b.assembly.4.20.1.el9.x86_64

Optional: Verify the image builder configuration that lists all of the components to be installed by running the following command:
```
$ sudo composer-cli blueprints depsolve microshift_blueprint
```