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Support ServerSelectors for MetalMachine #28

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Sep 2, 2024
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Support ServerSelectors for MetalMachine #28

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Support ServerSelectors for MetalMachines
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@hardikdr
hardikdr committed Sep 2, 2024
commit b820a0c405a5963b3f4fb394ab76a0cb3d66c6ad
12 changes: 0 additions & 12 deletions api/v1alpha1/common_types.go
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This file was deleted.

2 changes: 1 addition & 1 deletion api/v1alpha1/metalmachine_types.go
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Original file line number Diff line number Diff line change
@@ -32,7 +32,7 @@ type MetalMachineSpec struct {
// ServerSelector specifies matching criteria for labels on Servers.
// This is used to claim specific Server types for a MetalMachine.
// +optional
ServerSelector ServerSelector `json:"serverSelector,omitempty"`
ServerSelector *metav1.LabelSelector `json:"serverSelector,omitempty"`
}

// MetalMachineStatus defines the observed state of MetalMachine
29 changes: 6 additions & 23 deletions api/v1alpha1/zz_generated.deepcopy.go
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40 changes: 38 additions & 2 deletions config/crd/bases/infrastructure.cluster.x-k8s.io_metalmachines.yaml
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Original file line number Diff line number Diff line change
@@ -51,13 +51,49 @@ spec:
ServerSelector specifies matching criteria for labels on Servers.
This is used to claim specific Server types for a MetalMachine.
properties:
matchExpressions:
description: matchExpressions is a list of label selector requirements.
The requirements are ANDed.
items:
description: |-
A label selector requirement is a selector that contains values, a key, and an operator that
relates the key and values.
properties:
key:
description: key is the label key that the selector applies
to.
type: string
operator:
description: |-
operator represents a key's relationship to a set of values.
Valid operators are In, NotIn, Exists and DoesNotExist.
type: string
values:
description: |-
values is an array of string values. If the operator is In or NotIn,
the values array must be non-empty. If the operator is Exists or DoesNotExist,
the values array must be empty. This array is replaced during a strategic
merge patch.
items:
type: string
type: array
x-kubernetes-list-type: atomic
required:
- key
- operator
type: object
type: array
x-kubernetes-list-type: atomic
matchLabels:
additionalProperties:
type: string
description: Key/value pairs of labels that must exist on a chosen
Server
description: |-
matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels
map is equivalent to an element of matchExpressions, whose key field is "key", the
operator is "In", and the values array contains only "value". The requirements are ANDed.
type: object
type: object
x-kubernetes-map-type: atomic
required:
- image
type: object
40 changes: 38 additions & 2 deletions config/crd/bases/infrastructure.cluster.x-k8s.io_metalmachinetemplates.yaml
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Original file line number Diff line number Diff line change
@@ -84,13 +84,49 @@ spec:
ServerSelector specifies matching criteria for labels on Servers.
This is used to claim specific Server types for a MetalMachine.
properties:
matchExpressions:
description: matchExpressions is a list of label selector
requirements. The requirements are ANDed.
items:
description: |-
A label selector requirement is a selector that contains values, a key, and an operator that
relates the key and values.
properties:
key:
description: key is the label key that the selector
applies to.
type: string
operator:
description: |-
operator represents a key's relationship to a set of values.
Valid operators are In, NotIn, Exists and DoesNotExist.
type: string
values:
description: |-
values is an array of string values. If the operator is In or NotIn,
the values array must be non-empty. If the operator is Exists or DoesNotExist,
the values array must be empty. This array is replaced during a strategic
merge patch.
items:
type: string
type: array
x-kubernetes-list-type: atomic
required:
- key
- operator
type: object
type: array
x-kubernetes-list-type: atomic
matchLabels:
additionalProperties:
type: string
description: Key/value pairs of labels that must exist
on a chosen Server
description: |-
matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels
map is equivalent to an element of matchExpressions, whose key field is "key", the
operator is "In", and the values array contains only "value". The requirements are ANDed.
type: object
type: object
x-kubernetes-map-type: atomic
required:
- image
type: object
76 changes: 39 additions & 37 deletions docs/api-reference/api.md
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Original file line number Diff line number Diff line change
@@ -205,10 +205,21 @@ string
</tr>
<tr>
<td>
<code>image</code><br/>
<em>
string
</em>
</td>
<td>
<p>Image specifies the boot image to be used for the server.</p>
</td>
</tr>
<tr>
<td>
<code>serverSelector</code><br/>
<em>
<a href="#infrastructure.cluster.x-k8s.io/v1alpha1.ServerSelector">
ServerSelector
<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#labelselector-v1-meta">
Kubernetes meta/v1.LabelSelector
</a>
</em>
</td>
@@ -265,10 +276,21 @@ string
</tr>
<tr>
<td>
<code>image</code><br/>
<em>
string
</em>
</td>
<td>
<p>Image specifies the boot image to be used for the server.</p>
</td>
</tr>
<tr>
<td>
<code>serverSelector</code><br/>
<em>
<a href="#infrastructure.cluster.x-k8s.io/v1alpha1.ServerSelector">
ServerSelector
<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#labelselector-v1-meta">
Kubernetes meta/v1.LabelSelector
</a>
</em>
</td>
@@ -475,10 +497,21 @@ string
</tr>
<tr>
<td>
<code>image</code><br/>
<em>
string
</em>
</td>
<td>
<p>Image specifies the boot image to be used for the server.</p>
</td>
</tr>
<tr>
<td>
<code>serverSelector</code><br/>
<em>
<a href="#infrastructure.cluster.x-k8s.io/v1alpha1.ServerSelector">
ServerSelector
<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#labelselector-v1-meta">
Kubernetes meta/v1.LabelSelector
</a>
</em>
</td>
@@ -523,37 +556,6 @@ MetalMachineTemplateResource
</tr>
</tbody>
</table>
<h3 id="infrastructure.cluster.x-k8s.io/v1alpha1.ServerSelector">ServerSelector
</h3>
<p>
(<em>Appears on:</em><a href="#infrastructure.cluster.x-k8s.io/v1alpha1.MetalMachineSpec">MetalMachineSpec</a>)
</p>
<div>
<p>ServerSelector specifies matching criteria for labels on Server.
This is used to claim specific Server types for a Machine</p>
</div>
<table>
<thead>
<tr>
<th>Field</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<code>matchLabels</code><br/>
<em>
map[string]string
</em>
</td>
<td>
<em>(Optional)</em>
<p>Key/value pairs of labels that must exist on a chosen Server</p>
</td>
</tr>
</tbody>
</table>
<hr/>
<p><em>
Generated with <code>gen-crd-api-reference-docs</code>
16 changes: 2 additions & 14 deletions internal/controller/metalmachine_controller.go
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Original file line number Diff line number Diff line change
@@ -297,23 +297,11 @@ func (r *MetalMachineReconciler) applyServerClaim(ctx context.Context, log *logr
IgnitionSecretRef: &corev1.LocalObjectReference{
Name: ignitionsecret.Name,
},
Image: metalmachine.Spec.Image,
Image: metalmachine.Spec.Image,
ServerSelector: metalmachine.Spec.ServerSelector,
},
}

// TODO: Define proper contract for ServerSelectors.
serverSelector := metav1.LabelSelector{
MatchLabels: map[string]string{
"clusterapi-workload": "",
},
}
if _, exists := metalmachine.Labels["cluster.x-k8s.io/control-plane"]; exists {
serverSelector.MatchLabels = map[string]string{
"clusterapi-controlplane": "",
}
}
serverClaimObj.Spec.ServerSelector = &serverSelector

if err := controllerutil.SetControllerReference(metalmachine, serverClaimObj, r.Client.Scheme()); err != nil {
return nil, fmt.Errorf("failed to set ControllerReference: %w", err)
}
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