fix missing quotation marks in job examples

[ysam12345]

PR #34266 fix one of the typo in Job example, but there're still many similar typo in other examples/languages.
This PR is to fix all these typos.

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[kbhawkey]

Hi @ysam12345 . Are the single quotes required for the print command?

[ysam12345]

Hi @kbhawkey . After doing some test, I found the issue is not related to the single quotes.
At first, I ran into an error when trying to run an example from kubernetes document, which will throw the following error:

$ k apply -f job-with-timeout.yaml
job.batch/pi-with-timeout created

$ k get pod
NAME                    READY   STATUS   RESTARTS   AGE
pi-with-timeout-gj68h   0/1     Error    0          26s
pi-with-timeout-lzfhv   0/1     Error    0          15s

$ k logs pi-with-timeout-gj68h
Can't use an undefined value as an ARRAY reference at /usr/local/lib/perl5/5.36.0/Math/BigInt/Calc.pm line 1049.

And I noticed the first example in Job document can successfully complete:

apiVersion: batch/v1
kind: Job
metadata:
  name: pi
spec:
  template:
    spec:
      containers:
      - name: pi
        image: perl:5.34
        command: ["perl",  "-Mbignum=bpi", "-wle", "'print bpi(2000)'"]
      restartPolicy: Never
  backoffLimit: 4

This Job example has those single quotes, which was added by PR #34266. However, I didn't notice although the pod can complete, the perl execution result still had error:

$ kubectl apply -f https://kubernetes.io/examples/controllers/job.yaml
job.batch/pi created

$ k get pod
NAME       READY   STATUS      RESTARTS   AGE
pi-wv7xh   0/1     Completed   0          6s

$ k logs pi-wv7xh
Useless use of a constant ("print bpi(2000)") in void context at -e line 1.

So adding single quotes didn't fix the error "Can't use an undefined value as an ARRAY reference at /usr/local/lib/perl5/5.36.0/Math/BigInt/Calc.pm line 1049.".
After some test, I found this error only happen when using latest perl image, which is perl:5.36 at this time. Using perl:5.34 won't have this issue:

apiVersion: batch/v1
kind: Job
metadata:
  name: pi
spec:
  template:
    spec:
      containers:
      - name: pi
        image: perl:5.34
        command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
      restartPolicy: Never
  backoffLimit: 4

Result:

$ k apply -f job-perl-5.34-without-single-quotes.yaml
job.batch/pi created

$ k get pod
NAME       READY   STATUS      RESTARTS   AGE
pi-zxpbd   0/1     Completed   0          15s

$ k logs pi-zxpbd
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989380952572010654858632788659361533818279682303019520353018529689957736225994138912497217752834791315155748572424541506959508295331168617278558890750983817546374649393192550604009277016711390098488240128583616035637076601047101819429555961989467678374494482553797747268471040475346462080466842590694912933136770289891521047521620569660240580381501935112533824300355876402474964732639141992726042699227967823547816360093417216412199245863150302861829745557067498385054945885869269956909272107975093029553211653449872027559602364806654991198818347977535663698074265425278625518184175746728909777727938000816470600161452491921732172147723501414419735685481613611573525521334757418494684385233239073941433345477624168625189835694855620992192221842725502542568876717904946016534668049886272327917860857843838279679766814541009538837863609506800642251252051173929848960841284886269456042419652850222106611863067442786220391949450471237137869609563643719172874677646575739624138908658326459958133904780275901

So instead of adding those single quotes, I think I should remove the single quotes added by PR #34266 and modify those Job examples to use perl:5.34 to avoid the "Can't use an undefined value as an ARRAY reference at /usr/local/lib/perl5/5.36.0/Math/BigInt/Calc.pm line 1049." error.

[kbhawkey]

Hi @ysam12345 . When creating a pull request, we recommend that you only include changes in one language.

[ysam12345]

Hi @kbhawkey . I'll modify the commit to only contain changes in en and update this PR. Thanks.

[k8s-ci-robot]

@ysam12345: PR needs rebase.

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[Sea-n]

Hey @ysam12345,

It's been a while since last update, would you like to address issues in the previous comments so that we can move forward?

[ysam12345]

Hi @Sea-n, sorry that I forgot to update this PR. I noticed this issue has been fixed by PR #34414 at this time. So I will close this PR and create PRs for other languages.