TEZ-4631: Include an official script that installs hadoop and tez andruns a simple example DAG - addendum ASF license + shellcheck fixes

[abstractdog]

No description provided.

[tez-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	26m 33s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	shelldocs	0m 0s		Shelldocs was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ master Compile Tests _
+0 🆗	mvndep	2m 4s		Maven dependency ordering for branch
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 9s		Maven dependency ordering for patch
+1 💚	codespell	0m 4s		No new issues.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-1 ❌	shellcheck	0m 0s	/results-shellcheck.txt	The patch generated 24 new + 0 unchanged - 0 fixed = 24 total (was 0)
			_ Other Tests _
+0 🆗	asflicense	0m 0s		ASF License check generated no output?
		29m 9s

Subsystem	Report/Notes
Docker	ClientAPI=1.50 ServerAPI=1.50 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-417/1/artifact/out/Dockerfile
GITHUB PR	#417
Optional Tests	dupname asflicense codespell detsecrets shellcheck shelldocs
uname	Linux 2105b864b3ee 5.15.0-139-generic #149-Ubuntu SMP Fri Apr 11 22:06:13 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-agent/workspace/tez-multibranch_PR-417/src/.yetus/personality.sh
git revision	master / e0656fe
Max. process+thread count	58 (vs. ulimit of 5500)
modules	C: U:
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-417/1/console
versions	git=2.34.1 maven=3.6.3 codespell=2.0.0 shellcheck=0.7.1
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[abstractdog]

LOL, shellcheck passed in the original PR #414
anyway, I'm trying to fix these if possible

[tez-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 49s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	shelldocs	0m 0s		Shelldocs was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ master Compile Tests _
+0 🆗	mvndep	2m 7s		Maven dependency ordering for branch
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 9s		Maven dependency ordering for patch
+1 💚	codespell	0m 5s		No new issues.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-1 ❌	shellcheck	0m 1s	/results-shellcheck.txt	The patch generated 23 new + 0 unchanged - 0 fixed = 23 total (was 0)
			_ Other Tests _
+0 🆗	asflicense	0m 0s		ASF License check generated no output?
		4m 0s

Subsystem	Report/Notes
Docker	ClientAPI=1.50 ServerAPI=1.50 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-417/2/artifact/out/Dockerfile
GITHUB PR	#417
Optional Tests	dupname asflicense codespell detsecrets shellcheck shelldocs
uname	Linux 0ea9bc6c6f37 5.15.0-139-generic #149-Ubuntu SMP Fri Apr 11 22:06:13 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-agent/workspace/tez-multibranch_PR-417/src/.yetus/personality.sh
git revision	master / 5be0073
Max. process+thread count	56 (vs. ulimit of 5500)
modules	C: U:
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-417/2/console
versions	git=2.34.1 maven=3.6.3 codespell=2.0.0 shellcheck=0.7.1
Powered by	Apache Yetus 0.15.1 https://yetus.apache.org

This message was automatically generated.

[tez-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 32s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	shelldocs	0m 0s		Shelldocs was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ master Compile Tests _
+0 🆗	mvndep	1m 58s		Maven dependency ordering for branch
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 9s		Maven dependency ordering for patch
+1 💚	codespell	0m 6s		No new issues.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	shellcheck	0m 0s		No new issues.
			_ Other Tests _
+0 🆗	asflicense	0m 0s		ASF License check generated no output?
		3m 4s

Subsystem	Report/Notes
Docker	ClientAPI=1.50 ServerAPI=1.50 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-417/4/artifact/out/Dockerfile
GITHUB PR	#417
Optional Tests	dupname asflicense codespell detsecrets shellcheck shelldocs
uname	Linux 5ffa699bcfa8 5.15.0-139-generic #149-Ubuntu SMP Fri Apr 11 22:06:13 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-agent/workspace/tez-multibranch_PR-417/src/.yetus/personality.sh
git revision	master / 6ea0d62
Max. process+thread count	55 (vs. ulimit of 5500)
modules	C: U:
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-417/4/console
versions	git=2.34.1 maven=3.6.3 codespell=2.0.0 shellcheck=0.7.1
Powered by	Apache Yetus 0.15.1 https://yetus.apache.org

This message was automatically generated.

[abstractdog]

@ayushtkn : can you pls check? this is green now

[ayushtkn]

LGTM

[abstractdog]

thanks a lot @ayushtkn for reviewing this one!