Edward Viaene

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@sachiiinnnn9734 Ай бұрын

Exactly what I was looking for, you're an amazing teacher, thank you and God bless you. subbed!!

@luabba 3 ай бұрын

So, if declared map/populate/clear in a separate function, the heap size should return back to 0, once the function returns and GC runs.

@EdwardViaene 2 ай бұрын

Correct, this is only as long as the map exists and is not cleaned up by the GC.

@КириллКужукин-у6р 3 ай бұрын

I don't understand why you need 2 clients (mgr client and client set). In my opinion you can use only one client from manager for operations with any types of k8s resources. Can you explain it please?

@EdwardViaene 3 ай бұрын

In theory that should work indeed, but in practice, it didn't work out that well, because of version differences between the custom API packages you need in combination with a client that you need for a specific kubernetes version.

@КириллКужукин-у6р 3 ай бұрын

@@EdwardViaene Thanks)

@jhonsen9842 4 ай бұрын

Hey I think you have somecourses in udemy. Could you please suggest some good books to learn these things in depth along side Golang. All though i have your golang course with cloud and devops. But i want to go little deep.

@EdwardViaene 2 ай бұрын

I’m not aware of any books that go deeper. At some point you just need to dig in the Kubernetes docs and what’s available on GitHub in the kubernetes packages. Using the kubernetes go client can help you to ge more insights for sure.

@pratham_computerpcce2084 4 ай бұрын

I have few doubts regarding go lang operators, wanted to connect with you

@EdwardViaene 4 ай бұрын

You can find me on LinkedIn, twitter, or udemy if you want to message me directly.

@pratham_computerpcce2084 4 ай бұрын

Can you please create more in depth videos series on this topic with more realistic go lang operator examples!

@EdwardViaene 4 ай бұрын

What are you looking for exactly? Managing specific external services or something else?

@amineghanmi-w1q Ай бұрын

@@EdwardViaene yes everything

@regexgenerator 4 ай бұрын

Oh wow, great stuff! Still learning but do we really just allow go to allocate this much memory for such a small operation? Is there anyway to dis-allocate once operations are done?

@EdwardViaene 4 ай бұрын

The garbage collector will remove it from memory once you don't need it anymore (when you don't have any references anymore to a variable - the map in this case)

@regexgenerator 4 ай бұрын

A map is "just a dict" so its faster to just do dict["key"].exists() in Python. New to golang, so im trying to rewire my brain to using golang patterns.

@regexgenerator 4 ай бұрын

Is it computationally expensive if the address changes? Because the slice capacity is dynamically changing when appending? Is a better way for performance is to somehow know the capacity of the operation you're performing?

@EdwardViaene 4 ай бұрын

it's going to be negligible for most applications, but it's something to be aware of once you start working with a lot of data. If you know the size of your slice, then you could use make() to initialize it at the right size.

@razvansodoleanu9755 5 ай бұрын

Great video. Do I need to register a scheme even if I want to work with secrets?

@EdwardViaene 5 ай бұрын

If you're working with a build-in resource and not a custom resource, then you don't need to register a custom scheme. You can find an example of this here: github.com/kubernetes-sigs/controller-runtime/blob/main/examples/builtins/main.go#L67

@razvansodoleanu9755 5 ай бұрын

@@EdwardViaene Thank you

@is0p0d 6 ай бұрын

Go noob here so genuine question - spent my entire career programming in C/C++ - whats the point of having a capacity if it automatically resizes anyway?

@EdwardViaene 6 ай бұрын

When you know the capacity you need, you can specify it, and it'll not resize. It's more efficient, as it doesn't need to resize, and resizing means that your underlying address changes, which might not be desired. Have a look at the video shared access in goroutines (kzbin.info/www/bejne/g4abdoynaaeAobM), which has a use case where you don't want to resize your slice. It's also the append function that is going to resize your slice, so if you access your slice directly with slice[x], it's not automatically going to resize. Copying slices is going to be more efficient if you can specify the same capacity as the previous slice.

@is0p0d 6 ай бұрын

@@EdwardViaene thanks!

@olexandr.v 6 ай бұрын

can barely see the code

@EdwardViaene 6 ай бұрын

You can try to pick a higher resolution. On lower resolution, the text is not very well visible.

@regexgenerator 4 ай бұрын

Its fine for me!

@xuanthanhtraninh642 7 ай бұрын

Informative.

@karanpk28 7 ай бұрын

Can you share the presentation template with us?

@thisisreallyme3130 9 ай бұрын

WOW I just found your series (after watching so so many Golang videos). Your HelloWorld that dives into HTTP GET and JSON was great, but now onto DNS serving this is amazing. While I already had another Udemy course on GoLang, I just purchased yours as well :-) Like the way project are evolved/iterated on.

@thisisreallyme3130 9 ай бұрын

This is probably the best Hello World I've ever seen, especially when (for a lot of people) your eventual goal is in fact, an HTTP GET and JSON parsing. Cheers.

@dermuschelschluerfer 11 ай бұрын

one suggestion: with tests you should still use a real connection instead of mocking net.Conn. Also, really great display of TDD, I like how you presented the concepts before implementing and taking a very planned approach

@dekooks1543 9 ай бұрын

why not just use the mocked object ?

@yvettelau9143 11 ай бұрын

this is a good turtorial! Thank you!

@cipcip4986 Жыл бұрын

so you actually don’t need to auth to the cluster in the webhook go code. Thanks

@tigron1530 Жыл бұрын

Yo great tutorial and explqnation, thanks you so much for it!

@Soundwave-F7Z Жыл бұрын

Thank you Edward for the great video! Just wondering why don’t we cut the AWS load balancer out and just make the client requests directly to the ingress gateway?

@arthas1632 Жыл бұрын

This is amazing, thanks for this incredible video Sir Edward! Just one question, how do you go about adding the caching layer? What pattern would we be using if we want to implement cache?

@happyben09 Жыл бұрын

Super, it helps a lot!

@2000mipo Жыл бұрын

Timestamps: 0:00 - Intro and course outline 2:42 - 1. Hello world 13:00 - 2. Command line arguments 34:23 - 3. http.Get(...) 53:19 - 4. JSON parsing (and structs) 1:08:40 - 5. Functions (and interfaces)

@2000mipo Жыл бұрын

Thanks for making this video!

@sovrinfo Жыл бұрын

Awesome, Big Thanks!

@roberto_camp Жыл бұрын

You are an amazing instructor. I have learned more in one hour than in many other videos lasting 2-3hrs. Your style is conscise and dense. Love it! 👍👍👍

@magesh4806 2 жыл бұрын

If possible can you add steps on how to configure the same with self-signed certificates? Like easy to follow step to do the same

@Abeel_A7 2 жыл бұрын

hii sir, I am currently watching your course for terraform. you staring the variables with $ where I dont find it in the other references. can anyone tell me what is the difference between these two statement please? public_key = "${file("${var.PATH_TO_PUBLIC_KEY}")}" and public_key = file(var.PATH_TO_PUBLIC_KEY) thank you

@EdwardViaene 2 жыл бұрын

Old syntax & new syntax. The syntax without the dollar sign is preferred. Using this syntax is only necessary when you need to do concatenations (putting strings together)

@itaybeyder9701 2 жыл бұрын

where can i find the repo with the helloworld app ?

@lihireisman6583 2 жыл бұрын

WOWWWWWW GREAT!!!!!

@joelmck 2 жыл бұрын

Excellent breakdown, thank you!

@hemanthreddygaddam353 2 жыл бұрын

Sir do more youtube videos you are explaing about terraform I like the way u make it short and meaning full We want more videos from u

@salimhossain2192 3 жыл бұрын

kubectl: command not found, no guide about this kubectl? why man?

@subhash0609 3 жыл бұрын

can we attach/replace an iam role on an running ec2 instance by terraform

@HXYZZZ 3 жыл бұрын

very helpful and easy to follow. Thanks Edward !!

@Skandansh 3 жыл бұрын

crisp and clear

@faisalmorensya4936 3 жыл бұрын

this is very good Edwards! thanks!

@sf2998 3 жыл бұрын

velly good

@jaywang7285 3 жыл бұрын

love tis video istio servicemesh

@GreymanTraders 3 жыл бұрын

Hi Edward, very intuitive! I am a Udemy subscriber of your course. I cannot find the "crds.yaml" file in your README file as below - "kubectl apply -f ~/istio-1.7.6/install/kubernetes/helm/istio/templates/crds.yaml". I tried to browse through all the ISTIO directory but could not find one. Can you please help me?? thanks.

@GreymanTraders 3 жыл бұрын

vagrant@vagrant-ubuntu-trusty-64:~/istio-1.7.6$ istioctl install /kubernetes/helm/istio/templates/crds.yaml Error: accepts 0 arg(s), received 1

@GreymanTraders 3 жыл бұрын

vagrant@vagrant-ubuntu-trusty-64:~/istio-1.7.6$ istioctl install -f /kubernetes/helm/istio/templates/crds.yaml Error: failed to install manifests: open /kubernetes/helm/istio/templates/crds.yaml: no such file or directory

@EdwardViaene 3 жыл бұрын

@@GreymanTraders If you have downloaded istioctl, you don't need the yaml files. You can run istioctl install - see istio.io/latest/docs/setup/getting-started/#download The yaml files are meant to be used in conjunction with kubectl. When the demos were created, you couldn't run the install using istioctl. The easiest way now to install istio is using istioctl install.