feat(#4958): Supporting node selectors for the builder pod

config/crd/bases/camel.apache.org_builds.yaml

@@ -257,6 +257,11 @@ spec:
                                 Pod (must be the same of the operator in charge of
                                 this Build reconciliation).
                               type: string
+                            nodeSelector:
+                              type: object                                
+                              description: NodeSelector
+                              additionalProperties:
+                                type: string
                             orderStrategy:
                               description: the build order strategy to adopt
                               enum:

config/crd/bases/camel.apache.org_integrations.yaml

@@ -6457,6 +6457,11 @@ spec:
                         items:
                           type: string
                         type: array
+                      nodeSelector:
+                        additionalProperties:
+                          type: string
+                        description: NodeSelector
+                        type: object                        
                       orderStrategy:
                         default: sequential
                         description: The build order strategy to use, either `dependencies`,

pkg/apis/camel/v1/build_types.go

@@ -48,6 +48,8 @@ type BuildSpec struct {
 	// the maximum amount of parallel running builds started by this operator instance
 	// Deprecated: no longer in use in Camel K 2 - maintained for backward compatibility
 	MaxRunningBuilds int32 `json:"maxRunningBuilds,omitempty"`
+	// Defines a set of nodes the builder pod is eligible to be scheduled on, based on labels on the node.
+	NodeSelector map[string]string `property:"node-selector" json:"nodeSelector,omitempty"`
 }
 
 // Task represents the abstract task. Only one of the task should be configured to represent the specific task chosen.

pkg/apis/camel/v1/trait/builder.go

@@ -66,4 +66,6 @@ type BuilderTrait struct {
 	TasksLimitCPU []string `property:"tasks-limit-cpu" json:"tasksLimitCPU,omitempty"`
 	// A list of limit memory configuration for the specific task with format `<task-name>:<limit-memory-conf>`.
 	TasksLimitMemory []string `property:"tasks-limit-memory" json:"tasksLimitMemory,omitempty"`
+	// Defines a set of nodes the builder pod is eligible to be scheduled on, based on labels on the node.
+	NodeSelector map[string]string `json:"nodeSelector,omitempty"`
 }

pkg/controller/build/build_pod.go

@@ -147,6 +147,7 @@ func newBuildPod(ctx context.Context, c ctrl.Reader, client client.Client, build
 			ServiceAccountName: platform.BuilderServiceAccount,
 			RestartPolicy:      corev1.RestartPolicyNever,
 			SecurityContext:    podSecurityContext,
+			NodeSelector:       build.Spec.NodeSelector,
 		},
 	}
 

pkg/controller/integrationkit/build.go

@@ -150,8 +150,9 @@ func (action *buildAction) handleBuildSubmitted(ctx context.Context, kit *v1.Int
 				Annotations: annotations,
 			},
 			Spec: v1.BuildSpec{
-				Tasks:   env.Pipeline,
-				Timeout: timeout,
+				Tasks:        env.Pipeline,
+				Timeout:      timeout,
+				NodeSelector: env.BuilderNodeSelector,
 			},
 		}
 

pkg/trait/builder.go

@@ -95,7 +95,7 @@ func (t *builderTrait) Configure(e *Environment) (bool, *TraitCondition, error)
 				t.TasksRequestMemory = append(t.TasksRequestMemory, "quarkus-native:4Gi")
 			}
 		}
-
+		e.BuilderNodeSelector = t.NodeSelector
 		return true, condition, nil
 	}
 

pkg/trait/trait_types.go

@@ -225,6 +225,7 @@ type Environment struct {
 	ApplicationProperties map[string]string
 	Interceptors          []string
 	ServiceBindingSecret  string
+	BuilderNodeSelector   map[string]string
 }
 
 // ControllerStrategy is used to determine the kind of controller that needs to be created for the integration.