[jira] [Created] (FLINK-14991) Export `FLINK_HOME` environment variable to all the entrypoint

["Guowei Ma (Jira)" <ji...@apache.org>]

Guowei Ma created FLINK-14991:
---------------------------------

             Summary: Export `FLINK_HOME` environment variable to all the entrypoint
                 Key: FLINK-14991
                 URL: https://issues.apache.org/jira/browse/FLINK-14991
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / Coordination
            Reporter: Guowei Ma


 Currently, Flink depends on 6 types of files: configuration files, system jars files, script files、library jar files, plugin jar files, and user jars files. These files are in different directories. 

Flink exports 5 environment variables to locate these different type files: `FLINK_CONF_DIR`,`FLINK_LIB_DIR`,`FLINK_OPT_DIR`,`FLINK_PLUGIN_DIR`,`FLINK_BIN_DIR`.

It is not a good style that exports an environment variable for every type of file.

So this jira proposes to export the `FLINK_HOME` environment variable to all the entrypoint. Derive the directory of the different type files from the `FLINK_HOME` environment variable and every type file has a fixed directory name.

 This also has another benefit that the method implies the directory structure is the same in all the situations.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)