@manojkumar-jt3fw
Travis, u inspired me 5 months back to go on Devops journey. I am using udemy to prepae for Devops job. I completd : 1.Linux Administrator course : Imran Afzal 2.Bash scripting----> Narendra 3.Git --> Bogdan stashuk 4.Maven --> Bharath Thippireddy As of now, trying to complete AWS [Fundamentals + Solutions Architect Associate] by stephen . Next will b : SonarQube---->Nexus---->Docker--->Kubernetes--->Terraform--->Ansible---->Prometheus & Graffana---->Python
@TerenceKearns
I used to be a PHP developer 20 years ago. I had no idea I'd be interested in this stuff but I seem to be. It's like lego but cooler. Your videos are very clear, concise, and most of all.... WELL PACED! nice one my man.
@phillipgilligan8168
Docker is a huge prerequisite as well as docker compose and swarm to get you used to microarchitecture, how networks function and communicate as well as services in between containers, and swarm to get you used to orchestration. If you do those first kubernetes will be a lot more familiar to you.
@thewarrior9827
I’m Kubernetes certified CKA & CKAD I’m fully agree with you about the prerequisites and also something really important to emphasize is mastering Linux before going to K8s because this is the only OS Kubernetes deals with
@fevets51
Sorry to be picky and I am sure you're aware of this really - but at 3:20 you explain "so when you run the image its going to follow those steps, it adds your package.json, run npm install, copy over your code.." - it has already done this to build the image, when the image is run a container from the image is created and it runs the ENTRYPOINT and/or CMD instructions to run the desired application
@nic_4849
Awesome vid. I'm a sales rep at leading k8s provider and here I am researching containers & k8s from other voices - shows the complexity! Also, regarding networking -- this is hands down where we get held up the most with customer education / onboarding from poc to hardened dev/prod environments . Hands down the most gotchas here. Frustratingly so, but hey opportunities!
@JohnnyN-I
One of the best decisions I made lately: subbed to this man's channel. I love the practical approach he takes in sharing the knowledge.
@AXEONyo
Great video, just wanted to clarify something around the dockerfile, it is a build script that is ONLY used to specify how to build the image as well as any startup commands (CMD). It is not referenced post-build of the image in any way, and running an image post-build does not re-execute the commands in the docker file, these binaries are already installed within the image. At boot time, only the CMD as defined within the dockerfile is executed at runtime
@itsnotokgolf
I'd recommend people make their own containerization from scratch, then they'll learn even faster, and it's actually quite simple if you already understand the basics of computing..... via namespaces, cgroups and chroot all a container is doing is creating a segmented virtual virtual machine kinda lol.... and once you do all of this from scratch, and understand whats going on under the hood, you will fkn love docker and k8 so much more for the power and tooling they bring you!!
@UrbanGuitarLegend
Podman and crio are good options. Podman has more useful command line options as a client than docker. Also, you can run as a normal user and not be root.
@nishanth-saka
"Not knowing Networking Concepts is nothing to be ashamed of.." - tears in my eyes, Yuge weight off my chest.
@H4KnSL4K
@3:18 - "When you run that image, it's going to follow those steps" Umm.. No, I am pretty sure the Dockerfile is run only when creating the image, not when running the image (creating a container, from the image, but not using a Dockerfile). If you have an image, it doesn't need to copy package.json (for instance) into it from anywhere .. and you have the image, probably not the source directory that you used to build the image. (so where would you copy it from??)
@warhawk8511
I didn’t understand anything but the feeling they were pleasant🤩
@scottamolinari
I've been working with k8s as a hobby for over 2 years now. I was looking for (and still working on) a way to run a platform I'd like to commercialize at some point. And, although I have a successfully running k8s cluster with like 30+ apps running, and I'm heading to my own very opinionated platform. I still wouldn't ever call myself an expert. I'm a jack of all trades and master of none. These basics are definitely important, but there is a whole lot more.
@neosekaleli1609
you are quickly being my favourite tech tuber , you make great content travis
@finne-dich-selbst-3395
Nice. I really stumble with networking. Let's see when I start to grasp this stuff really.
@dacam29
I would include learning Docker Compose as the second step. It's a highly effective method for running containers locally, regardless of whether they're configured to run in a Kubernetes cluster or other environments.
@Nobody-eg4bi
Where I work, we abandoned docker and started using Podman about a year ago.
@nwokobia
Outstanding. Thanks for keeping it short and to the point.
@caitlinmclaren2695