* Mark a project as required and activated.
     * @param selector The selector of the project.
     */
    public void activateRequiredProject(String selector) {
        this.activations.add(new ProjectActivationSettings(selector, ActivationSettings.ACTIVATION_REQUIRED));
    }

    /**
     * Mark a project as optional and activated.
     * @param selector The selector of the project.
     */

                    label selector matches all objects. A null label selector matches
                    no objects.
                  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

    boolean isMatchingProject(MavenProject project, String selector, File reactorDirectory) {
        // [groupId]:artifactId
        if (selector.contains(":")) {
            String id = ':' + project.getArtifactId();

            if (id.equals(selector)) {
                return true;
            }

            id = project.getGroupId() + id;

            return id.equals(selector);
        }

    app: sidecar-injector
    release: {{ .Release.Name }}
webhooks:
{{- /* Set up the selectors. First section is for revision, rest is for "default" revision */}}

{{- /* Case 1: namespace selector matches, and object doesn't disable */}}
{{- /* Note: if both revision and legacy selector, we give precedence to the legacy one */}}
{{- include "core" (mergeOverwrite (deepCopy $whv) (dict "Prefix" "rev.namespace.") ) }}

	envoy.PersistentFlags().StringVarP(&labelSelector, "selector", "l", "", "Label selector")
	envoy.PersistentFlags().IntVar(&proxyAdminPort, "ui-port", util.DefaultProxyAdminPort, "The component dashboard UI port.")
	dashboardCmd.AddCommand(envoy)

	proxy := proxyDashCmd(cliContext)
	proxy.PersistentFlags().StringVarP(&labelSelector, "selector", "l", "", "Label selector")

    }

    @ParameterizedTest
    @ValueSource(strings = {":wrong-selector", "wrong-selector"})
    @EmptySource
    void isMatchingProjectNoMatchOnSelectorReturnsFalse(String selector) {
        final boolean result = sut.isMatchingProject(createMavenProject("maven-core"), selector, null);
        assertThat(result, is(false));
    }

    @ParameterizedTest

    app: sidecar-injector
    release: {{ .Release.Name }}
webhooks:
{{- /* Set up the selectors. First section is for revision, rest is for "default" revision */}}

{{- /* Case 1: namespace selector matches, and object doesn't disable */}}
{{- /* Note: if both revision and legacy selector, we give precedence to the legacy one */}}
{{- include "core" (mergeOverwrite (deepCopy $whv) (dict "Prefix" "rev.namespace.") ) }}

    - key: sidecar.istio.io/inject
      operator: NotIn
      values:
      - "false"
    - key: istio.io/rev
      operator: In
      values:
      - "default"

{{- /* Case 1: Namespace selector enabled, and object selector is not injected */}}
{{- include "core" (mergeOverwrite (deepCopy $whv) (dict "Prefix" "namespace.") ) }}
  namespaceSelector:
    matchExpressions:
    - key: istio-injection
      operator: In

		// Make sure default and revisions do not cross
		mustNotSelect(t, mustGetLabels(t, serviceRev, "spec.selector"), podLabels)
		mustNotSelect(t, mustGetLabels(t, service, "spec.selector"), podLabelsRev)
		mustNotSelect(t, mustGetLabels(t, pdbRev, "spec.selector.matchLabels"), podLabels)
		mustNotSelect(t, mustGetLabels(t, pdb, "spec.selector.matchLabels"), podLabelsRev)

		// Make sure the scaleTargetRef points to the correct Deployment

  // selector is the string-encoded form of a standard kubernetes label selector for the given metric.
  // When set, it is passed as an additional parameter to the metrics server for more specific metrics scoping
  // When unset, just the metricName will be used to gather metrics.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 4;