flink-runtime/src/test/java/org/apache/flink/runtime/clusterframework/overlays/KeytabOverlayTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.flink.runtime.clusterframework.overlays;

import org.apache.flink.configuration.Configuration;
import org.apache.flink.configuration.SecurityOptions;
import org.apache.flink.core.fs.Path;
import org.apache.flink.runtime.clusterframework.ContainerSpecification;

import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.io.File;

import static org.apache.flink.runtime.clusterframework.overlays.KeytabOverlay.TARGET_PATH;
import static org.junit.Assert.assertEquals;

public class KeytabOverlayTest extends ContainerOverlayTestBase {

    @Rule public TemporaryFolder tempFolder = new TemporaryFolder();

    @Test
    public void testConfigure() throws Exception {

        File keytab = tempFolder.newFile();

        KeytabOverlay overlay = new KeytabOverlay(keytab);

        ContainerSpecification spec = new ContainerSpecification();
        overlay.configure(spec);

        assertEquals(
                TARGET_PATH.getPath(),
                spec.getFlinkConfiguration().getString(SecurityOptions.KERBEROS_LOGIN_KEYTAB));
        checkArtifact(spec, TARGET_PATH);
    }

    @Test
    public void testNoConf() throws Exception {
        KeytabOverlay overlay = new KeytabOverlay((Path) null);

        ContainerSpecification containerSpecification = new ContainerSpecification();
        overlay.configure(containerSpecification);
    }

    @Test
    public void testBuilderFromEnvironment() throws Exception {

        final Configuration conf = new Configuration();
        File keytab = tempFolder.newFile();

        conf.setString(SecurityOptions.KERBEROS_LOGIN_KEYTAB, keytab.getAbsolutePath());
        KeytabOverlay.Builder builder = KeytabOverlay.newBuilder().fromEnvironment(conf);
        assertEquals(builder.keytabPath, keytab);
    }
}