rmetzger commented on a change in pull request #12558:
URL: https://github.com/apache/flink/pull/12558#discussion_r438713863
##########
File path: docs/ops/deployment/docker.md
##########
@@ -319,13 +329,57 @@ as described in [how to run the Flink
image](#how-to-run-flink-image).
ENV VAR_NAME value
```
+ **Commands for building**:
+
```sh
docker build -t custom_flink_image .
# optional push to your docker image registry if you have it,
# e.g. to distribute the custom image to your cluster
docker push custom_flink_image
```
+ <a name="extend-with-maven"></a>
+ If you need to **extend the Flink image with a Maven dependency (and its
transitive dependencies)**,
+you can use a Maven *pom.xml* file such as:
+
+ *pom.xml*:
+
+ ```xml
+ <?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>
+
+ <groupId>org.apache.flink</groupId>
+ <artifactId>docker-dependencies</artifactId>
Review comment:
I believe this is a very frequent task people will have. Even if they
know how to download stuff from Maven, having this template available will make
the process faster & smoother, because you can just copy paste it, instead of
generating and archetype, finding the maven-dependency-plugin etc.
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