operator: Multiple same operators installed test

CATALOG.md

@@ -7,7 +7,7 @@ Depending on the workload type, not all tests are required to pass to satisfy be
 
 ## Test cases summary
 
-### Total test cases: 114
+### Total test cases: 116
 
 ### Total suites: 10
 
@@ -19,7 +19,7 @@ Depending on the workload type, not all tests are required to pass to satisfy be
 |manageability|2|
 |networking|12|
 |observability|5|
-|operator|9|
+|operator|10|
 |performance|6|
 |platform-alteration|13|
 |preflight|17|
@@ -36,11 +36,11 @@ Depending on the workload type, not all tests are required to pass to satisfy be
 |---|---|
 |8|1|
 
-### Non-Telco specific tests only: 67
+### Non-Telco specific tests only: 68
 
 |Mandatory|Optional|
 |---|---|
-|42|25|
+|43|25|
 
 ### Telco specific tests only: 27
 
@@ -1266,15 +1266,31 @@ Tags|common,operator
 |Non-Telco|Mandatory|
 |Telco|Mandatory|
 
+#### operator-multiple-same-operators
+
+Property|Description
+---|---
+Unique ID|operator-multiple-same-operators
+Description|Tests whether multiple instances of the same Operator CSV are installed.
+Suggested Remediation|Ensure that only one Operator of the same type is installed in the cluster.
+Best Practice Reference|https://redhat-best-practices-for-k8s.github.io/guide/#redhat-best-practices-for-k8s-cnf-operator-requirements
+Exception Process|No exceptions
+Tags|common,operator
+|**Scenario**|**Optional/Mandatory**|
+|Extended|Mandatory|
+|Far-Edge|Mandatory|
+|Non-Telco|Mandatory|
+|Telco|Mandatory|
+
 #### operator-olm-skip-range
 
 Property|Description
 ---|---
 Unique ID|operator-olm-skip-range
 Description|Test that checks the operator has a valid olm skip range.
-Suggested Remediation|Ensure that the Operator has a valid OLM skip range.
+Suggested Remediation|Ensure that the Operator has a valid OLM skip range. If the operator does not have another version to "skip", then ignore the result of this test.
 Best Practice Reference|https://redhat-best-practices-for-k8s.github.io/guide/#redhat-best-practices-for-k8s-cnf-operator-requirements
-Exception Process|No exceptions
+Exception Process|If there is not a version of the operator that needs to be skipped, then an exception will be granted.
 Tags|common,operator
 |**Scenario**|**Optional/Mandatory**|
 |Extended|Optional|

tests/identifiers/doclinks.go

@@ -117,6 +117,7 @@ const (
 	TestOperatorReadOnlyFilesystemDocLink               = DocOperatorRequirement
 	TestOperatorPodsNoHugepagesDocLink                  = DocOperatorRequirement
 	TestOperatorOlmSkipRangeDocLink                     = DocOperatorRequirement
+	TestMultipleSameOperatorsIdentifierDocLink          = DocOperatorRequirement
 
 	// Observability Test Suite
 	TestLoggingIdentifierDocLink                            = "https://redhat-best-practices-for-k8s.github.io/guide/#redhat-best-practices-for-k8s-logging"

tests/identifiers/identifiers.go

@@ -133,6 +133,7 @@ var (
 	TestOperatorCrdSchemaIdentifier                   claim.Identifier
 	TestOperatorSingleCrdOwnerIdentifier              claim.Identifier
 	TestOperatorPodsNoHugepages                       claim.Identifier
+	TestMultipleSameOperatorsIdentifier               claim.Identifier
 	TestPodNodeSelectorAndAffinityBestPractices       claim.Identifier
 	TestPodHighAvailabilityBestPractices              claim.Identifier
 	TestPodClusterRoleBindingsBestPracticesIdentifier claim.Identifier
@@ -1067,6 +1068,22 @@ that Node's kernel may not have the same hacks.'`,
 		},
 		TagCommon)
 
+	TestMultipleSameOperatorsIdentifier = AddCatalogEntry(
+		"multiple-same-operators",
+		common.OperatorTestKey,
+		`Tests whether multiple instances of the same Operator CSV are installed.`,
+		MultipleSameOperatorsRemediation,
+		NoExceptions,
+		TestMultipleSameOperatorsIdentifierDocLink,
+		false,
+		map[string]string{
+			FarEdge:  Mandatory,
+			Telco:    Mandatory,
+			NonTelco: Mandatory,
+			Extended: Mandatory,
+		},
+		TagCommon)
+
 	TestPodNodeSelectorAndAffinityBestPractices = AddCatalogEntry(
 		"pod-scheduling",
 		common.LifecycleTestKey,

tests/identifiers/remediation.go

@@ -101,6 +101,8 @@ const (
 
 	OperatorPodsNoHugepagesRemediation = `Ensure that the pods are not using hugepages`
 
+	MultipleSameOperatorsRemediation = `Ensure that only one Operator of the same type is installed in the cluster.`
+
 	PodNodeSelectorAndAffinityBestPracticesRemediation = `In most cases, Pod's should not specify their host Nodes through nodeSelector or nodeAffinity. However, there are cases in which workloads require specialized hardware specific to a particular class of Node.`
 
 	PodHighAvailabilityBestPracticesRemediation = `In high availability cases, Pod podAntiAffinity rule should be specified for pod scheduling and pod replica value is set to more than 1 .`

tests/operator/suite.go

@@ -108,6 +108,13 @@ func LoadChecks() {
 			testOperatorOlmSkipRange(c, &env)
 			return nil
 		}))
+
+	checksGroup.Add(checksdb.NewCheck(identifiers.GetTestIDAndLabels(identifiers.TestMultipleSameOperatorsIdentifier)).
+		WithSkipCheckFn(testhelper.GetNoOperatorsSkipFn(&env)).
+		WithCheckFn(func(c *checksdb.Check) error {
+			testMultipleSameOperators(c, &env)
+			return nil
+		}))
 }
 
 // This function check if the Operator CRD version follows K8s versioning
@@ -373,3 +380,26 @@ func testOperatorOlmSkipRange(check *checksdb.Check, env *provider.TestEnvironme
 	}
 	check.SetResult(compliantObjects, nonCompliantObjects)
 }
+
+func testMultipleSameOperators(check *checksdb.Check, env *provider.TestEnvironment) {
+	var compliantObjects []*testhelper.ReportObject
+	var nonCompliantObjects []*testhelper.ReportObject
+
+	// Ensure the CSV name is unique and not installed more than once.
+	// CSV Names are unique and OLM installs them with name.version format.
+	// So, we can check if the CSV name is installed more than once.
+
+	for _, op := range env.AllOperators {
+		for _, op2 := range env.AllOperators {
+			if op.Csv.Name == op2.Csv.Name && op.Csv.Namespace != op2.Csv.Namespace {
+				check.LogError("Operator %q is installed more than once", op.Name)
+				nonCompliantObjects = append(nonCompliantObjects, testhelper.NewOperatorReportObject(op.Namespace, op.Name, "Operator is installed more than once", false))
+				break
+			}
+		}
+
+		compliantObjects = append(compliantObjects, testhelper.NewOperatorReportObject(op.Namespace, op.Name, "Operator is installed only once", true))
+	}
+
+	check.SetResult(compliantObjects, nonCompliantObjects)
+}