[jira] [Comment Edited] (FLINK-14812) Add custom libs to Flink classpath with an environment variable.

["Eui Heo (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-14812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17016428#comment-17016428 ] 

Eui Heo edited comment on FLINK-14812 at 1/16/20 12:45 AM:
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In particular, although /opt/flink/opt of the stock image already contains the necessary jars, it seems inconvenient to me to create separate images for each purpose.

For example, there are metrics libs and file system libs in stock docker image:

flink-azure-fs-hadoop-1.9.1.jar
flink-s3-fs-hadoop-1.9.1.jar
flink-metrics-prometheus-1.9.1.jar
flink-metrics-influxdb-1.9.1.jar



was (Author: elanv):
In particular, although /opt/flink/opt of the stock image already contains the necessary jars, it seems inconvenient to me to create separate images for each purpose.

For example, there are metrics libs and file system libs:

flink-azure-fs-hadoop-1.9.1.jar
flink-s3-fs-hadoop-1.9.1.jar
flink-metrics-prometheus-1.9.1.jar
flink-metrics-influxdb-1.9.1.jar


> Add custom libs to Flink classpath with an environment variable.
> ----------------------------------------------------------------
>
>                 Key: FLINK-14812
>                 URL: https://issues.apache.org/jira/browse/FLINK-14812
>             Project: Flink
>          Issue Type: New Feature
>          Components: Deployment / Kubernetes, Deployment / Scripts
>            Reporter: Eui Heo
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> To use plugin library you need to add it to the flink classpath. The documentation explains to put the jar file in the lib path.
> https://ci.apache.org/projects/flink/flink-docs-stable/monitoring/metrics.html#prometheus-orgapacheflinkmetricsprometheusprometheusreporter
> However, to deploy metric-enabled Flinks on a kubernetes cluster, we have the burden of creating and managing another container image. It would be more efficient to add the classpath using environment variables inside the constructFlinkClassPath function in the config.sh file.
> In particular, it seems inconvenient for me to create a separate image to use the jars, even though the /opt/ flink/opt of the stock image already contains them.
> For example, there are metrics libs and file system libs:
> flink-azure-fs-hadoop-1.9.1.jar
> flink-s3-fs-hadoop-1.9.1.jar
> flink-metrics-prometheus-1.9.1.jar
> flink-metrics-influxdb-1.9.1.jar



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