feat(aws): CleanupAlarmsAgent with an optional user-defined name pattern (backport #6317)

clouddriver-aws/src/main/groovy/com/netflix/spinnaker/clouddriver/aws/AwsConfigurationProperties.groovy

@@ -39,6 +39,7 @@ class AwsConfigurationProperties {
     static class AlarmsConfig {
       boolean enabled = false
       int daysToKeep = 90
+      String alarmsNamePattern = ".+-v[0-9]{3}-alarm-.+"
     }
 
     @NestedConfigurationProperty

clouddriver-aws/src/main/groovy/com/netflix/spinnaker/clouddriver/aws/agent/CleanupAlarmsAgent.groovy

@@ -40,31 +40,35 @@ class CleanupAlarmsAgent implements RunnableAgent, CustomScheduledAgent {
   public static final long POLL_INTERVAL_MILLIS = TimeUnit.HOURS.toMillis(24)
   public static final long DEFAULT_TIMEOUT_MILLIS = TimeUnit.MINUTES.toMillis(20)
 
-  public static final Pattern ALARM_NAME_PATTERN = Pattern.compile(".+-v[0-9]{3}-alarm-.+")
+  public final Pattern ALARM_NAME_PATTERN = Pattern.compile(alarmsNamePattern)
 
   final AmazonClientProvider amazonClientProvider
   final CredentialsRepository<NetflixAmazonCredentials> credentialsRepository
   final long pollIntervalMillis
   final long timeoutMillis
   final int daysToLeave
+  final String alarmsNamePattern;
 
 
   CleanupAlarmsAgent(AmazonClientProvider amazonClientProvider,
                      CredentialsRepository<NetflixAmazonCredentials> credentialsRepository,
-                     int daysToLeave) {
-    this(amazonClientProvider, credentialsRepository, POLL_INTERVAL_MILLIS, DEFAULT_TIMEOUT_MILLIS, daysToLeave)
+                     int daysToLeave,
+                     String alarmsNamePattern) {
+    this(amazonClientProvider, credentialsRepository, POLL_INTERVAL_MILLIS, DEFAULT_TIMEOUT_MILLIS, daysToLeave, alarmsNamePattern)
   }
 
   CleanupAlarmsAgent(AmazonClientProvider amazonClientProvider,
                      CredentialsRepository<NetflixAmazonCredentials> credentialsRepository,
                      long pollIntervalMillis,
                      long timeoutMills,
-                     int daysToLeave) {
+                     int daysToLeave,
+                     String alarmsNamePattern) {
     this.amazonClientProvider = amazonClientProvider
     this.credentialsRepository = credentialsRepository
     this.pollIntervalMillis = pollIntervalMillis
     this.timeoutMillis = timeoutMills
     this.daysToLeave = daysToLeave
+    this.alarmsNamePattern = alarmsNamePattern
   }
 
   @Override

clouddriver-aws/src/main/java/com/netflix/spinnaker/clouddriver/aws/provider/config/ProviderHelpers.java

@@ -250,7 +250,8 @@ public static List<Agent> buildAwsCleanupAgents(
             new CleanupAlarmsAgent(
                 amazonClientProvider,
                 credentialsRepository,
-                awsConfigurationProperties.getCleanup().getAlarms().getDaysToKeep()));
+                awsConfigurationProperties.getCleanup().getAlarms().getDaysToKeep(),
+                awsConfigurationProperties.getCleanup().getAlarms().getAlarmsNamePattern()));
       }
       newlyAddedAgents.add(
           new CleanupDetachedInstancesAgent(amazonClientProvider, credentialsRepository));

clouddriver-aws/src/test/groovy/com/netflix/spinnaker/clouddriver/aws/agent/CleanupAlarmsAgentSpec.groovy

@@ -64,7 +64,7 @@ class CleanupAlarmsAgentSpec extends Specification {
       0 * _
     }
 
-    agent = new CleanupAlarmsAgent(amazonClientProvider, credentialsRepository, 10L, 10L, 90)
+    agent = new CleanupAlarmsAgent(amazonClientProvider, credentialsRepository, 10L, 10L, 90, ".+-v[0-9]{3}-alarm-.+")
   }
 
   void "should run across all regions/accounts and delete in each"() {
@@ -128,9 +128,55 @@ class CleanupAlarmsAgentSpec extends Specification {
 
   }
 
+  void "should delete alarms that match a user defined pattern"() {
+    agent = new CleanupAlarmsAgent(amazonClientProvider, credentialsRepository, 10L, 10L, 90, ".+-v[0-9]{3}-CustomAlarm-.+")
+
+    given:
+    MetricAlarm alarmA = buildAlarm("some-other-v000-CustomAlarm-${validUuid}", 91)
+    MetricAlarm alarmB = buildAlarm("some-other-alarm-v000-${validUuid}", 91) // missing "-alarm-"
+
+    when:
+    agent.run()
+
+    then:
+    1 * autoScalingUSE.describePolicies() >> new DescribePoliciesResult()
+    1 * cloudWatchUSE.describeAlarms(_) >> new DescribeAlarmsResult()
+    1 * autoScalingUSW.describePolicies() >> new DescribePoliciesResult()
+    1 * cloudWatchUSW.describeAlarms(_) >> new DescribeAlarmsResult().withMetricAlarms([alarmA, alarmB])
+    1 * cloudWatchUSW.deleteAlarms({ DeleteAlarmsRequest request ->
+      request.alarmNames == ["some-other-v000-CustomAlarm-${validUuid}"]
+    })
+    0 * cloudWatchUSW.deleteAlarms({ DeleteAlarmsRequest request ->
+      request.alarmNames == ["some-other-alarm-v000-${validUuid}"]
+    })
+  }
+
+
+  void "should delete alarms that match a user defined multiple pattern"() {
+    agent = new CleanupAlarmsAgent(amazonClientProvider, credentialsRepository, 10L, 10L, 90, ".+-v[0-9]{3}-CustomAlarm-.+|^some-other-alarm-v[0-9]{3}-.+")
+
+    given:
+    MetricAlarm alarmA = buildAlarm("some-other-v000-CustomAlarm-${validUuid}", 91)
+    MetricAlarm alarmB = buildAlarm("some-other-alarm-v000-${validUuid}", 91) // missing "-alarm-"
+
+    when:
+    agent.run()
+
+    then:
+    1 * autoScalingUSE.describePolicies() >> new DescribePoliciesResult()
+    1 * cloudWatchUSE.describeAlarms(_) >> new DescribeAlarmsResult()
+    1 * autoScalingUSW.describePolicies() >> new DescribePoliciesResult()
+    1 * cloudWatchUSW.describeAlarms(_) >> new DescribeAlarmsResult().withMetricAlarms([alarmA, alarmB])
+    1 * cloudWatchUSW.deleteAlarms({ DeleteAlarmsRequest request ->
+      request.alarmNames == ["some-other-v000-CustomAlarm-${validUuid}", "some-other-alarm-v000-${validUuid}"]
+    })
+  }
 
   private static MetricAlarm buildAlarm(String name, int dataDays) {
     new MetricAlarm(alarmName: name, stateUpdatedTimestamp: DateTime.now().minusDays(dataDays).toDate())
   }
 
+
+
+
 }