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Linux Foundation CKA Exam - Topic 6 Question 40 Discussion

Posted by Cyril on Mar 23, 2023 at 08:35 AM

List pod logs named ''frontend'' and search for the pattern ''started'' and write it to a file ''/opt/error-logs''

Suggested Answer: A

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39 comments · newest first
GO
Golda 12 months ago
I prefer using `kubectl logs --tail` for better control.
RE
Rex 1 year ago
Yup, that will capture all logs with 'started'.
GI
Gilberto 1 year ago
Wait, does that actually work?
NA
Nadine 1 year ago
I think you need to use `-f` for follow mode.
CL
Cletus 1 year ago
That's the right command!
LO
Long 1 year ago
I think the pattern search is case-insensitive with "-i", but I need to double-check if I need quotes around "started".
KE
Kent 1 year ago
I believe the output redirection to the file is done with ">", but I might be mixing it up with another command.
HA
Harrison 1 year ago
I remember practicing a similar question where we had to filter logs, but I can't recall if I used "grep" correctly.
EM
Emiko 1 year ago
I think the command should start with "kubectl logs" but I'm not sure about the exact syntax for filtering.
HO
Horace 1 year ago
I'm pretty confident about this one. I think the correct answer is A - XML doesn't restrict which transmission protocols can be used.
PA
Paz 1 year ago
I'm a bit confused by the wording of this question. I'll have to re-read it a few times to make sure I understand what they're asking.
JA
Jacquelyne 1 year ago
The Goodbye handler doesn't sound like it would announce options at the start, so I'm leaning towards either the Directory or the Operator handler.
EL
Elinore 1 year ago
I think application whitelisting/blacklisting is definitely the right choice for blocking specific applications, but I'm not totally sure how it works in practice.
ZI
Zita 1 year ago
I think I've got it! I'll use an accumulator to keep track of the count, and then print out the final value. That way, I don't have to worry about manually incrementing a counter.
YA
Yan 2 years ago
Is it just me, or does 'frontend' sound like the name of a superhero sidekick? 'The Mighty Frontend, defender of logs and vanquisher of 'started' patterns!'
SY
Sylvia 1 year ago
↳ replying to Yan
The Mighty Frontend to the rescue!
TI
Timothy 1 year ago
↳ replying to Yan
I never thought of it that way, but now I can't unsee it!
WI
Willodean 1 year ago
↳ replying to Yan
Haha, that's a funny way to think of it!
JU
Justine 2 years ago
Finally, a question that doesn't require me to memorize a thousand different command options. I can totally do this in my sleep!
VI
Virgina 1 year ago
↳ replying to Justine
User4: Nice, I'll remember this for future reference. Thanks for sharing!
BR
Brock 1 year ago
↳ replying to Justine
User3: I've done this before, it's a quick way to filter logs for specific patterns.
CH
Cherilyn 1 year ago
↳ replying to Justine
User2: Yeah, that's all there is to it. Simple command to get the job done.
LE
Lera 1 year ago
↳ replying to Justine
User1: This one looks easy, just need to use kubectl logs frontend | grep -i ''started'' > /opt/error-logs
EV
Evangelina 1 year ago
↳ replying to Justine
User2: Will do, thanks again!
MI
Mi 1 year ago
↳ replying to Justine
User1: No problem, let me know if you need any help.
ST
Stevie 1 year ago
↳ replying to Justine
User2: Thanks for the tip, I'll give it a try!
BO
Bobbye 1 year ago
↳ replying to Justine
User1: This one's easy, just use kubectl logs frontend | grep -i 'started' > /opt/error-logs
BU
Bulah 2 years ago
It's kubectl logs frontend | grep -i ''started'' > /opt/error-logs.
TA
Tamala 2 years ago
What's the command again?
TY
Tyisha 2 years ago
Nice, this is exactly what I needed to troubleshoot my frontend issues. I'm sure this will help me identify any startup problems.
LO
Lorriane 1 year ago
↳ replying to Tyisha
User 2: Great, that command will help you identify any startup problems with your frontend.
LA
Lavonna 2 years ago
↳ replying to Tyisha
User 1: Kubectl logs frontend | grep -i ''started'' > /opt/error-logs
GW
Gwen 2 years ago
This is a straightforward command to get the logs for the 'frontend' pod and search for the 'started' pattern, then write the output to the '/opt/error-logs' file. Easy peasy!
ER
Erick 1 year ago
↳ replying to Gwen
You're welcome! Let me know if you need any help.
CA
Carin 1 year ago
↳ replying to Gwen
Thanks for the explanation, I'll give it a try now.
ST
Stephaine 1 year ago
↳ replying to Gwen
Yes, that's correct. It will search for the 'started' pattern in the logs of the 'frontend' pod and save it to the '/opt/error-logs' file.
RE
Rex 2 years ago
↳ replying to Gwen
Got it, so I just need to run 'kubectl logs frontend | grep -i 'started' > /opt/error-logs'
BU
Bulah 2 years ago
I agree, but I remember the command to do that.
TA
Tamala 2 years ago
I think this question is tricky.
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