[SPARK-28249][K8S][DOC] Update the path in the comment inside the Dockerfile

[sujeshchirackkal]

What changes were proposed in this pull request?

Corrects the path given in the comment for building the docker image

How was this patch tested?

No testing done. it changes only the comment.

[dongjoon-hyun]

ok to test

[dongjoon-hyun]

Thank you for your contribution. This PR looks invalid because the original one is consistent with the previous comment.

the docker build command should be invoked from the top level directory of the Spark distribution.

In the distribution, there is no resource-managers.

$ ls -al spark-2.4.3-bin-hadoop2.7
total 160
drwxr-xr-x   21 dhyun  staff    672 Jun  7 20:20 .
drwxr-xr-x   12 dhyun  staff    384 Jun  7 20:22 ..
-rw-r--r--    1 dhyun  staff  21316 Apr 30 22:19 LICENSE
-rw-r--r--    1 dhyun  staff  42919 Apr 30 22:19 NOTICE
drwxr-xr-x    3 dhyun  staff     96 Apr 30 22:19 R
-rw-r--r--    1 dhyun  staff   3952 Apr 30 22:19 README.md
-rw-r--r--    1 dhyun  staff    164 Apr 30 22:19 RELEASE
drwxr-xr-x   29 dhyun  staff    928 Apr 30 22:19 bin
drwxr-xr-x   11 dhyun  staff    352 Jun  9 21:01 conf
drwxr-xr-x    5 dhyun  staff    160 Apr 30 22:19 data
-rw-r--r--    1 dhyun  staff    785 Jun 14 00:32 derby.log
drwxr-xr-x    4 dhyun  staff    128 Apr 30 22:19 examples
drwxr-xr-x  228 dhyun  staff   7296 Apr 30 22:19 jars
drwxr-xr-x    4 dhyun  staff    128 Apr 30 22:19 kubernetes
drwxr-xr-x   49 dhyun  staff   1568 Apr 30 22:19 licenses
drwxr-xr-x    6 dhyun  staff    192 Jun 11 21:33 logs
drwxr-xr-x    9 dhyun  staff    288 Jun 14 00:32 metastore_db
drwxr-xr-x   19 dhyun  staff    608 Apr 30 22:19 python
drwxr-xr-x   24 dhyun  staff    768 Apr 30 22:19 sbin
drwxr-xr-x    3 dhyun  staff     96 Jun  2 14:38 spark-warehouse
drwxr-xr-x    3 dhyun  staff     96 Apr 30 22:19 yarn

[dongjoon-hyun]

Could you close this PR, please?

[SparkQA]

Kubernetes integration test starting
URL: https://amplab.cs.berkeley.edu/jenkins/job/testing-k8s-prb-make-spark-distribution-unified/12393/

[SparkQA]

Test build #107237 has finished for PR 25051 at commit cb62f3c.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[SparkQA]

Kubernetes integration test status failure
URL: https://amplab.cs.berkeley.edu/jenkins/job/testing-k8s-prb-make-spark-distribution-unified/12393/

[dongjoon-hyun]

Thank you for your understanding, @sujeshchirackkal .