feat: e2e test to demonstrate namespace deletion problem

Signed-off-by: Attila Mészáros <[email protected]>

sample-operators/controller-namespace-deletion/pom.xml

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>io.javaoperatorsdk</groupId>
+    <artifactId>sample-operators</artifactId>
+    <version>5.0.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>sample-controller-namespace-deletion</artifactId>
+  <packaging>jar</packaging>
+  <name>Operator SDK - Samples - Controller Namespace Deletion</name>
+  <description>Deleting namespace with controller and custom resources</description>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>io.javaoperatorsdk</groupId>
+        <artifactId>operator-framework-bom</artifactId>
+        <version>${project.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+    <dependency>
+      <groupId>io.javaoperatorsdk</groupId>
+      <artifactId>operator-framework</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.fabric8</groupId>
+      <artifactId>crd-generator-apt</artifactId>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-slf4j2-impl</artifactId>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-core</artifactId>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.takes</groupId>
+      <artifactId>takes</artifactId>
+      <version>1.24.4</version>
+    </dependency>
+    <dependency>
+      <groupId>org.awaitility</groupId>
+      <artifactId>awaitility</artifactId>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>io.javaoperatorsdk</groupId>
+      <artifactId>operator-framework-junit-5</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>com.google.cloud.tools</groupId>
+        <artifactId>jib-maven-plugin</artifactId>
+        <version>${jib-maven-plugin.version}</version>
+        <configuration>
+          <from>
+            <image>gcr.io/distroless/java17-debian11</image>
+          </from>
+          <to>
+            <image>leader-election-operator</image>
+          </to>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.12.1</version>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

sample-operators/controller-namespace-deletion/src/main/java/io/javaoperatorsdk/operator/sample/ControllerNamespaceDeletionCustomResource.java

@@ -0,0 +1,7 @@
+package io.javaoperatorsdk.operator.sample;
+
+import io.fabric8.kubernetes.client.CustomResource;
+
+public class ControllerNamespaceDeletionCustomResource extends CustomResource<ControllerNamespaceDeletionSpec, ControllerNamespaceDeletionStatus> {
+
+}

sample-operators/controller-namespace-deletion/src/main/java/io/javaoperatorsdk/operator/sample/ControllerNamespaceDeletionOperator.java

@@ -0,0 +1,19 @@
+package io.javaoperatorsdk.operator.sample;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import io.javaoperatorsdk.operator.Operator;
+import io.javaoperatorsdk.operator.api.config.LeaderElectionConfiguration;
+
+public class ControllerNamespaceDeletionOperator {
+
+  private static final Logger log = LoggerFactory.getLogger(ControllerNamespaceDeletionOperator.class);
+
+  public static void main(String[] args) {
+    Operator operator = new Operator();
+
+    operator.register(new ControllerNamespaceDeletionReconciler());
+    operator.start();
+  }
+}

sample-operators/controller-namespace-deletion/src/main/java/io/javaoperatorsdk/operator/sample/ControllerNamespaceDeletionReconciler.java

@@ -0,0 +1,33 @@
+package io.javaoperatorsdk.operator.sample;
+
+import io.javaoperatorsdk.operator.api.reconciler.Cleaner;
+import io.javaoperatorsdk.operator.api.reconciler.Context;
+import io.javaoperatorsdk.operator.api.reconciler.DeleteControl;
+import io.javaoperatorsdk.operator.api.reconciler.Reconciler;
+import io.javaoperatorsdk.operator.api.reconciler.UpdateControl;
+
+import java.time.Duration;
+
+public class ControllerNamespaceDeletionReconciler implements Reconciler<ControllerNamespaceDeletionCustomResource>,
+        Cleaner<ControllerNamespaceDeletionCustomResource> {
+
+    @Override
+    public UpdateControl<ControllerNamespaceDeletionCustomResource> reconcile(ControllerNamespaceDeletionCustomResource resource,
+                                                                              Context<ControllerNamespaceDeletionCustomResource> context) {
+
+
+        return null;
+    }
+
+
+    @Override
+    public DeleteControl cleanup(ControllerNamespaceDeletionCustomResource resource,
+                                 Context<ControllerNamespaceDeletionCustomResource> context) {
+        try {
+            Thread.sleep(Duration.ofSeconds(10).toMillis());
+            return DeleteControl.defaultDelete();
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

sample-operators/controller-namespace-deletion/src/main/java/io/javaoperatorsdk/operator/sample/ControllerNamespaceDeletionSpec.java

@@ -0,0 +1,6 @@
+package io.javaoperatorsdk.operator.sample;
+
+import io.fabric8.kubernetes.client.CustomResource;
+
+public class ControllerNamespaceDeletionSpec {
+}

sample-operators/controller-namespace-deletion/src/main/java/io/javaoperatorsdk/operator/sample/ControllerNamespaceDeletionStatus.java

@@ -0,0 +1,6 @@
+package io.javaoperatorsdk.operator.sample;
+
+import io.fabric8.kubernetes.client.CustomResource;
+
+public class ControllerNamespaceDeletionStatus {
+}

sample-operators/controller-namespace-deletion/src/main/resources/log4j2.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout pattern="%d %-30c{1.} [%-5level] %msg%n%throwable"/>
+        </Console>
+    </Appenders>
+    <Loggers>
+        <Root level="debug">
+            <AppenderRef ref="Console"/>
+        </Root>
+    </Loggers>
+</Configuration>

sample-operators/controller-namespace-deletion/src/test/resources/log4j2.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout pattern="%style{%d}{yellow} %style{%-30c{1.}}{cyan} %highlight{[%-5level] %msg%n%throwable}{INFO=white}"/>
+        </Console>
+    </Appenders>
+    <Loggers>
+        <Root level="debug">
+            <AppenderRef ref="Console"/>
+        </Root>
+    </Loggers>
+</Configuration>

sample-operators/pom.xml

@@ -17,5 +17,6 @@
     <module>webpage</module>
     <module>mysql-schema</module>
     <module>leader-election</module>
+    <module>controller-namespace-deletion</module>
   </modules>
 </project>