Drop presence labels for matching all resources of a kind

[negz]

Description of your changes

Fixes #11.

compose-model-deployment and compose-model-cache need to ask Crossplane for "all InferenceClusters" and "all ModelReplicas". Crossplane's required resources API used to reject a ResourceSelector with neither match_name nor match_labels, so both functions required a presence label on every resource — modelplane.ai/cluster=true on InferenceClusters and modelplane.ai/replica=true on ModelReplicas — and matched on it. The cluster label was the worse of the two: a mandatory label with no semantic meaning that the platform team had to remember on every InferenceCluster, with no signal in the schema that it was required.

crossplane/crossplane#7241 fixed the underlying issue in v2.2.1: a ResourceSelector with only apiVersion and kind set now matches all resources of that kind. function-sdk-python v0.14.0 then let require_resources build such a selector when called with neither match field.

This bumps the SDK to v0.14.0, drops both presence labels, and matches all InferenceClusters (when no clusterSelector is set) and all ModelReplicas by calling require_resources with no match field. The package declares spec.crossplane.version: '>=v2.2.1' so it won't install on a Crossplane without the fix, and the CRD apiDependency moves from the release-2.2 branch to the v2.3.2 tag.

I have:

• Read and followed Modelplane's contribution process.
• Run nix flake check (or ./nix.sh flake check) and made sure it passes.
• Added or updated tests covering any composition function changes.
• Signed off every commit with git commit -s.

[negz]

This'll be unlocked once #83 merges.

[Copilot]

Pull request overview

This PR removes the “presence label” workaround previously required to match all resources of a kind via Crossplane required-resources, now relying on Crossplane >= v2.2.1 and crossplane-function-sdk-python v0.14.0 to support bare ResourceSelectors.

Changes:

• Bump crossplane-function-sdk-python to >=0.14.0 across the workspace and lockfile.
• Update compose-model-deployment and compose-model-cache to require all InferenceCluster / ModelReplica resources using bare selectors (no presence labels), and update tests accordingly.
• Remove modelplane.ai/cluster: "true" from example InferenceCluster manifests and declare Crossplane >=v2.2.1 in crossplane-project.yaml.

Reviewed changes

Copilot reviewed 22 out of 23 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
uv.lock	Locks crossplane-function-sdk-python at 0.14.0 and updates dependency constraints.
pyproject.toml	Bumps dev dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-serving-stack/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-model-service/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-model-replica/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-model-endpoint/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-model-deployment/tests/test_scheduling.py	Removes modelplane.ai/replica presence label from test fixtures.
functions/compose-model-deployment/tests/test_fn.py	Updates required-resource selector expectations and removes presence label from expected replicas.
functions/compose-model-deployment/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-model-deployment/function/fn.py	Drops presence label usage; uses bare selectors to match all clusters/replicas.
functions/compose-model-cache/tests/test_fn.py	Updates cluster fixtures and selector expectations to no longer require presence labels.
functions/compose-model-cache/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-model-cache/function/fn.py	Drops cluster presence-label selector; uses bare selector unless user narrows with clusterSelector.
functions/compose-inference-gateway/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-inference-cluster/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-inference-class/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-gke-cluster/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
functions/compose-eks-cluster/pyproject.toml	Bumps function dependency on crossplane-function-sdk-python>=0.14.0.
examples/qwen-demo/03-cluster.yaml	Removes the now-unnecessary modelplane.ai/cluster: "true" label from demo clusters.
examples/platform/inference-cluster-gke.yaml	Updates guidance comment and removes modelplane.ai/cluster: "true" label.
examples/platform/inference-cluster-existing.yaml	Removes modelplane.ai/cluster: "true" label.
examples/platform/inference-cluster-eks.yaml	Removes outdated guidance about required presence label and removes the label itself.
crossplane-project.yaml	Declares Crossplane >=v2.2.1 and pins CRD dependency ref to v2.3.2.

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