azagrebin commented on a change in pull request #20:
URL: https://github.com/apache/flink-docker/pull/20#discussion_r420910726



##########
File path: docker-entrypoint.sh
##########
@@ -18,6 +18,8 @@
 # limitations under the License.
 ###############################################################################
 
+COMMAND_STANDALONE="standalone-job"

Review comment:
       Is `standalone-job` already a stable name for the single job mode 
because of its user-facing bin script?
   I personally find it confusing. What about `single-jobmanager` and add 
another alias for cluster mode: `cluster-jobmanager`?

##########
File path: testing/run_travis_tests.sh
##########
@@ -11,14 +11,6 @@ fi
 
 BRANCH="$TRAVIS_BRANCH"
 
-if [ -n "$IS_PULL_REQUEST" ]; then
-  changed_files="$(git diff --name-only $BRANCH...HEAD)"

Review comment:
       why does it not work anymore? is `$BRANCH` not `dev-master` now?

##########
File path: docker-entrypoint.sh
##########
@@ -56,6 +58,27 @@ copy_plugins_if_required() {
   done
 }
 
+setup_usrlib() {
+  if [ -z "${USER_ARTIFACTS}" ]; then
+    return 0
+  fi
+
+  echo "Setting up usrlib"
+  for user_artifact in $(echo "${USER_ARTIFACTS}" | tr ';' ' '); do
+    echo "Adding artifact ${user_artifact} to usrlib directory."
+
+    mkdir -p "${FLINK_HOME}/usrlib"

Review comment:
       ```suggestion
     mkdir -p "${FLINK_HOME}/usrlib"
     for user_artifact in $(echo "${USER_ARTIFACTS}" | tr ';' ' '); do
       echo "Adding artifact ${user_artifact} to usrlib directory."
   
   ```
   moving `mkdir -p "${FLINK_HOME}/usrlib"` out of loop

##########
File path: testing/docker-test-job/pom.xml
##########
@@ -0,0 +1,75 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+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, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+<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>
+
+       <groupId>org.apache.flink</groupId>
+       <artifactId>docker-test-job</artifactId>
+       <version>1.0</version>
+       <packaging>jar</packaging>
+
+       <properties>
+               
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+               <flink.version>1.9.0</flink.version>
+               <java.version>1.8</java.version>

Review comment:
       also, there is going to be Java 11

##########
File path: testing/docker-test-job/pom.xml
##########
@@ -0,0 +1,75 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+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, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+<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>
+
+       <groupId>org.apache.flink</groupId>
+       <artifactId>docker-test-job</artifactId>
+       <version>1.0</version>
+       <packaging>jar</packaging>
+
+       <properties>
+               
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+               <flink.version>1.9.0</flink.version>

Review comment:
       is it `1.9` because it does not matter too much?
   maybe one more place speaking for having flink version somewhere in one place
   I suppose it could be rewritten while building it in `build_test_job()`

##########
File path: testing/testing_lib.sh
##########
@@ -178,17 +182,30 @@ function internal_smoke_test_images() {
 
     create_network
     trap cleanup EXIT RETURN
+    build_test_job
 
     local jobmanager_container_id
     local taskmanager_container_id
 
     for dockerfile in $dockerfiles; do
         build_image "$dockerfile"
-        jobmanager_container_id="$(internal_run_jobmanager "$dockerfile" 
"${docker_run_command_args}")"
+
+        jobmanager_container_id="$(internal_run_jobmanager "$dockerfile" 
"${docker_run_command_args}" "jobmanager")"
         taskmanager_container_id="$(internal_run_taskmanager "$dockerfile" 
"${docker_run_command_args}")"
         wait_for_jobmanager "$dockerfile"
         test_image "$dockerfile"
         docker kill "$jobmanager_container_id" "$taskmanager_container_id" > 
/dev/null
+
+        jobmanager_container_id="$(internal_run_jobmanager \
+            "$dockerfile" \
+            "${docker_run_command_args} --mount 
type=bind,src=$(pwd)/testing/docker-test-job/target,target=/jars -e 
USER_ARTIFACTS=/jars" \
+            "standalone-job --job-classname org.apache.flink.StreamingJob")"
+        taskmanager_container_id="$(internal_run_taskmanager \
+            "$dockerfile" \
+            "${docker_run_command_args} --mount 
type=bind,src=$(pwd)/testing/docker-test-job/target,target=/jars")"
+        wait_for_jobmanager "$dockerfile"
+        test_image "$dockerfile"
+        docker kill "$jobmanager_container_id" "$taskmanager_container_id" > 
/dev/null

Review comment:
       could it be deduplicated for cluster/job mode?
   ```sh
   docker_run_command_args="${docker_run_command_args} --mount 
type=bind,src=$(pwd)/testing/docker-test-job/target,target=/jars -e 
USER_ARTIFACTS=/jars"
   local jm_args="standalone-job --job-classname org.apache.flink.StreamingJob"
   test_jm_tm ${dockerfile} ${docker_run_command_args} ${jm_args}
   ```




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