What Is Linkerd Kubernetes Service Mesh? Linkerd Tutorial Part 1

What is Linkerd Kubernetes service mesh? How does Linkerd work? Why do we use Linkerd?

This is the first video in a series of tutorials about Linkerd service mesh in Kubernetes clusters.

#Linkerd #ServiceMesh #Kubernetes #k8s

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▬▬▬▬▬▬ ⏱ Timecodes ⏱ ▬▬▬▬▬▬
00:00 Introduction?
01:16 Why Service Mesh?
04:37 What Is Service Mesh?
06:01 Install And Setup Linkerd
10:07 Linkerd Proxy Injection
13:39 Observability With Linkerd

[DevOpsToolkit]

Are you already using service mesh? Did you try out Linkerd?

IMPORTANT: For reasons I do not comprehend (and Google support could not figure out), YouTube tends to delete comments that contain links. Please do not use them in your comments.

[danchisholm]

viktor you are an excellent teacher - thank you so much

[amitgadhia]

At the end of the series I may be much confident about service mesh. I haven't used it yet but planning to implement.
Thanks !!

[wollginator]

Very nice, comes at the right moment!

[alanmbarr]

Been enjoying the simplicity of linkerd for mTLS. One thing we ran into in production recently is that the default certificate authority is one year. We weren't using buoyant cloud so we didn't know what we didn't know about this certificate expiring. It was a sucky day but we learned our failover works and performance is different in another data center. But heads up might bite you if you aren't aware.

[altrius]

For me Linkerd is the go-to service mesh, when I have the choice. Much easier to get started with than Istio. Right now, most clusters I'm taking care of, are using Linkerd, but for one of them, we're still using Istio, because that cluster is running Kubeflow, which has a hard dependency on Istio and it will probably stay that way. Also the possibility to choose your own ingress controller with Linkerd can be quite a huge advantage, as compared to Istio locking you in with their own Istio Ingress Gateway. On the other hand, I feel like Linkerd is still at the point where it is going mainstream, but it's not there yet, which means, if you run into problems, there aren't that many tutorials or Stack Overflow threads.

[fenarRH]

Good start; when you go deep dive sessions there are operational cost (ex latency overhead, lcm of sidecar image etc) as well as business impact (how much it takes to use it with sla?) to consider.

[joebowbeer]

I'm looking forward to this series! I just noticed the use of Dapr in Azure Container Apps. Either or both of which might be interesting topics for you to cover. Dapr and service meshes overlap in a few areas, which is why I mention it here.

[mayureshpatilvlogs]

Excellent content. Please make video on gcp Anthos service mesh too.

[arnold]

May be at the end of this series, it would be great to have a comparison video on Linkerd and Istio.

[josephcasey]

The analogy you explained from 1:49 - 3:41 where you represent the concept of a service mesh as a hotel is illustrative gold. I'm memorizing that going forward whenever I need to explain the concept of a service mesh to management or product. Honestly, that analogy should totally be materialized into something like a SPA that teaches the concept of a service mesh.

I am curious if I have anecdotal bias on my part. I feel like most people I've encountered have defaulted to using Istio instead of Linkerd for a service mesh. Thoughts?

[petertalen]

Thanks! Interesting. I am really interested in multicluster communication and how to scope it to just a namespace or namespaces, without using a cloud loadbalancer or metallb.

[sandeepm]

This is very informative. However, Istio service mesh also provides very similar capabilities. Can you do a lecture comparing the two service mesh architectures and their application to distributed systems?

[bartekr]

Ingress controller not included. So canary deployment is implemented by Linkerd itself? Any possible api gateway related functions are supposed to be delivered by ingress or external gateway? Looking forward for next episode Viktor :)

[julienbodin]

There is one important thing to do with linkerd is to create your own trust anchor and the other needed certificates because they have a one year validity and it's a pain to update it. I think it cannot be done without downtime. There is a very intersting link in the linkerd documentation, loog for "Going to production" (cannot set the link here) which is a must-read before going to production with linkerd.

[swagatochatterjee]

Hi Viktor, what is your view on Kompose project of Kubernetes?

[tydalm.]

3rd try, hopefully youtube doesn't remove my comment this time!

Thanks for the video!

Did you ever try "garden"? I just stumbled upon it a few days ago, but have not tried it yet. Maybe an idea for a video?
(It's easier to find, if you add "io" and the usual separator for domain names)

Btw, is that really how English speakers pronounce "Jaeger"? Jäger is a German word and means "hunter" ("ae" is just a substitution for "ä"). It's the same as in Jägermeister.

[creative-commons-videos]

can you make a video on virtualization, i am not sure if its the right platform to ask but i am trying to install macos on virtualization (kvm), is it a really possible ? many people are already using macos using this method :)

[mehdiyahiacherif]

Hello sir, I watch a lot of your videos, but im not gonna lie, im kinda lost,
i see a lot of tools for kubernetes and i almost don't even know if i need them or not
for example for dev i can find my stack easily for a project, but for deployment it is hard with all of those new tools
can you please do a video for differentCD/CI stacks for toolsthat work well together
eg : rancher desktop ( k3s, nerdctl), argocd