Luyện nói tiếng Anh bằng Shadowing qua video: Install NetBox with Docker on Ubuntu 24.04/22.04 LTS | Ep. 2
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Still tracking your network inventory in spreadsheets?
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In this video, we are fixing that.
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I'd walk you through installing Netbox, which is a powerful modern source of truth for your network using Docker on Ubuntu.
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This will serve as the single source of truth for our network automation project in this series.
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By the end, you'd have a clean scalable alternative to messy spreadsheet and a good foundation ready for automation.
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So this is our Netbox interface.
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to organize our site, including which regions they are located.
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We can have multiple tenants on netbox and we can add our racks, devices, connections, power connections, wireless,
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IPAM, VPN, circuit and all of that.
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So basically it provides us all that we need to document
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our network in a single place there are two ways
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that we can install netbox we can go the manual route
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where we'll be responsible for installing the various components of netbox
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so like the database caching redis and all of that
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so the manual route will do it on our own now this is involving
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because it gives us that control but because we are starting out we want to get the
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then we can focus on our actual automation.
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So in this video, we'd use the Docker version.
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Pretty simple and straightforward.
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The various components are pre -configured and packaged as container images.
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All that we need to do is to pull the repo, define the port on which we want Netbox to listen on,
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pull the container images, and start the containers.
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First, you can see just a couple of steps and we are done.
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And because we'd want to log into Netbox, We'd need to create a user.
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In our demo today, we'll be installing Netbox using Docker on Ubuntu 24 .04.
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I have tested this with Ubuntu 22 .04 so it works on both versions.
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Because we are doing this from scratch, there are dependencies that we need on our Ubuntu server.
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We need to install Docker and we need Docker Compose.
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Just a quick note on Docker Compose.
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version of Docker Compose, but the syntax for that would be docker -compose.
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Now the newer version is docker space compose.
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The newer version is available in the official Docker repository, not the Ubuntu repo.
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What that means is that we have to add the official Docker repo, then we can pull this.
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So let's get started.
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In my case, I would use an EC2 instance that is running the Ubuntu 24 .04 OS.
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So let's open the CLI for this.
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As you can see the private IP address 172 .31 .4143,
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that right here, and we'll assess this using the public IP address.
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So the first thing I'll do right out of the way is to add our Docker repository, because that's where we would pull the Docker Compose.
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So add the official GPG key for Docker.
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Then we can add the docker repository.
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I would make all of these commands available to you, in the video description.
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Now that we have this out of the way, we would refresh the list of available packages and versions.
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So we do sudo update.
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So take just a couple of seconds to run.
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Once we are done with this, we would proceed to install the latest version of any packages.
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So we do CD app upgrade.
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Now we have been asked whether we want to continue on, yes or no. We would say yes.
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We could have simply passed this ES at the point of running the command.
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So it will take a while for this to run
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The reason we did both of these is to ensure that our system is up to date,
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is secure before installing any new software like Docker.
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So 98 % progress.
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We are almost there.
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In our case, there was a kernel update which will require us to reboot.
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Because this is a lab or a demo, we could have proceeded without rebooting.
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A word of caution however, if you are doing this in a production environment,
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make sure that you are able to reboot the server in case there's running any other services.
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it will just take a couple of seconds for this to reboot.
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Let's see.
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Let's restart our terminal and see if we should put it.
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So we've rebooted our next step.
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is to proceed with our installation of Docker and Docker Compose.
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Okay.
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So we installed Docker, now we passed the "yes" to it at the point of running the command.
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Thank you.
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Now if we had run Docker version before installing this, we would have seen that we wouldn't have Docker installed but now we have Docker. and start.
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Now we proceed to install Docker Compose.
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Thank you.
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Thank you.
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you All done. So...
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Docker not okay?
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Thank you.
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Look So we are good.
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Next, we want to ensure that when the server reboots, Docker starts automatically and the service also starts immediately.
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So we'll say systemctl .com.
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Enable Docker.
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and start docker if we check the status We should have the Docker service running.
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Okay.
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What we want to do next is that we want to ensure
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that our current user is able to run Docker commands without SIDO.
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To do that, we would add a current user to the Docker group.
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Now if we had done just this, we'd have to log out and log in or reboot before this takes effect,
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but we want this to take effect immediately.
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So at this point, we've looked at the dependencies needed.
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to Yeah, we've looked at the dependencies needed to pull a repo and get going.
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So our next step, we go and clone the NetBox Docker repository.
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Thank you. and navigate.
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So when we do a list, we see the folder here.
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So we navigate into this folder.
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And we do list.
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There are two key files that we need to pay attention to.
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So the first one is docker -compose .yaml.
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In this file, we have the services.
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You can think of these as the images that you'll be pulling from Docker.
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NetBox, we have the database, caching, redis, and all of that.
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Then we also need to create a file which defines the port under which NetBox will be available.
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Basically the port that NetBox will listen to.
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Now this file must be called specifically dash compose dot override dot YAML.
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If you look at the list of our files, we don't have that file specifically, but we have an example that tells us how that file can look like.
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So basically, as we see here, we just have the services netbox and we define the port 8000 and would stick to this.
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What we'll do next is to actually.
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write to that file So now if we do a list, we have docker -compose .override .yaml.
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And if we look into this, It has just what we need.
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Next step would pull our container images with docker -compose -pull.
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So it will take about a minute.
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We are pulling NetBox, we are pulling the database
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and we are pulling Caching as we saw in the Docker Compose .yaml file.
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Let's give this a minute.
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and we should be done good.
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Now that we have pulled the images, if you do, let's say docker, images we have our images but we don't have any
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containers running our next step is to start our containers the command we'd use would be Docker Compose
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We can do this.
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Let me just give some space so this becomes obvious.
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Thank you.
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Thank you.
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When you do this, we have all the logs show on our screen.
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The other option is that we can run this in a detached mode.
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With the detached mode, we can now access to the prompt.
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I will run it in the detached mode then I'll post it to show you how you can actually check their locks, even their life locks as this runs.
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This process of starting up the containers will take about
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five minutes to complete but i would want to
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you know let it go through
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the process so that we can see how this works look at the logs and
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if there are any errors we can take note of them
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at this point you could have actually exited out of this and check the logs but
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I would want to wait for about two minutes because there is an error message that
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you would see or may see and I would want to clarify
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that so that you are not alarmed when you see that so let's just give this a couple of seconds
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within two minutes we should see this.
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You can forward it, about a minute ahead if you can't wait.
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Thank you.
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Alright, if you see this arrow, this is still running at the backend.
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The process of bringing up the container images is still running at the backend.
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And there are some dependencies that are needed.
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before netbox actually runs.
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And we saw that here, right?
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So we said netbox depends on the database and caching and all of that.
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We can go ahead and check the logs and see what is happening.
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So if you do Thank you.
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Docker Compose Logs Thank you.
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It will show us their logs, but if you want their live logs as and when it happens,
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We can add the -f We are still in the process of setting up the various components.
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I said this will take about five minutes to get done, but I would want us to just wait till we see all that is happening.
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also in case we run into any errors.
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Now, if you are taking node, of a netbox interface.
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So you are seeing virtualization, DCIM, then tenancy, IPAM.
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This sounds familiar, right?
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When we went here, we saw all of those.
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tenancy virtualization ipam so basically at the back end it is setting up all of these components BPMs, wireless, tagging.
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What we expect to see or cue that everything is okay is that the netbox service is running.
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So at this point we have not seen it so we are still waiting but they used to fully complete Thank you.
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Alright, so there we have it.
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We have our Netbox application started.
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So we are good at this point.
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So we can come out of this.
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And now if you go back to our instance, this is the IP address of our instance.
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and the port we said was 8000.
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So there we go, we have our netbox installed, we have our interface, but it is asking us of a username and password.
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We didn't create one.
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So that would be our last step so we run this command Thank you to create a super user.
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It would prompt us for the username, their email address and their password.
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so a username do packets to purpose Email address then you'd enter your very secured password.
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confirm the password So our super user has been created successfully.
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So we go back and we enter our user and our password. So there we go.
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We have a netbox.
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Instance fully created from scratch.
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We don't have anything at this point.
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There are no regions.
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There are no sites.
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We don't have any tenants.
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There are no devices.
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Nothing at all.
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In our next video, we'll look at adding some data into Netbox.
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So our sites, devices, and all of that.
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If you found this interesting, kindly subscribe to the channel, hit like and the bell icon so you don't miss any videos.
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Thank you.
Tại sao nên luyện nói với video này?
Video lần này mang đến một cơ hội tuyệt vời để luyện nghe nói qua video về cách cài đặt NetBox trên Ubuntu bằng Docker. Khi theo dõi video, người học không chỉ nắm bắt những kiến thức kỹ thuật mà còn có thể thực hành ngữ điệu, nhịp điệu và cách phát âm chuẩn của người nói trong hoàn cảnh thực tế. Hơn nữa, việc tham gia vào các đoạn hội thoại mô phỏng trong video giúp cải thiện khả năng phát âm tiếng anh chuẩn của bạn, từ đó tự tin thể hiện bản thân hơn trong các tình huống giao tiếp hàng ngày.
Ngữ pháp & Biểu thức trong ngữ cảnh
Trong video, diễn giả sử dụng nhiều cấu trúc ngữ pháp và biểu thức hữu ích, bao gồm:
- “We need to”: Cấu trúc này thường dùng để nhấn mạnh những yêu cầu hoặc điều kiện cần thiết.
- “Let’s get started”: Đây là cách khuyến khích người nghe tham gia vào một hoạt động nào đó, thường thấy trong các hướng dẫn.
- “I would make”: Câu này diễn tả mong muốn hoặc dự định của người nói, rất phổ biến trong giao tiếp hằng ngày.
- “We can pull the repo”: Sử dụng từ “pull” trong ngữ cảnh công nghệ, như một thao tác kéo hoặc tải dữ liệu từ một nơi nào đó.
Việc lặp lại những câu này có thể giúp bạn luyện nói tiếng anh hiệu quả hơn, đồng thời cải thiện khả năng giao tiếp trong các tình huống liên quan đến công nghệ.
Các cạm bẫy phát âm phổ biến
Mặc dù nội dung video rất rõ ràng, nhưng vẫn có một số từ và cụm từ có thể gây khó khăn cho người học trong quá trình shadow speak. Một số cạm bẫy phát âm đặc trưng mà bạn nên chú ý là:
- “Docker”: Hãy chú ý đến âm “D” và âm “k” trong từ này.
- “Compose”: Phát âm đúng âm “o” và kết thúc với âm “s”.
- “Repository” : Chú ý cách phát âm của âm “r” và “p”, nhiều người thường nhầm lẫn với âm “b”.
Bằng cách lắng nghe và thực hành các từ khó này, bạn có thể cải thiện khả năng phát âm tiếng anh chuẩn và sự tự tin khi giao tiếp trong môi trường tiếng Anh.
Phương Pháp Shadowing Là Gì?
Shadowing là kỹ thuật học ngôn ngữ có cơ sở khoa học, ban đầu được phát triển cho chương trình đào tạo phiên dịch viên chuyên nghiệp và được phổ biến rộng rãi bởi nhà đa ngôn ngữ học Dr. Alexander Arguelles. Nguyên lý cốt lõi đơn giản nhưng cực kỳ hiệu quả: bạn nghe tiếng Anh của người bản xứ và lặp lại to ngay lập tức — như một "cái bóng" (shadow) đuổi theo người nói với độ trễ chỉ 1–2 giây. Khác với luyện ngữ pháp hay học từ vựng bị động, Shadowing buộc não bộ và cơ miệng phải đồng thời xử lý và tái tạo ngôn ngữ thực tế. Các nghiên cứu khoa học xác nhận phương pháp này cải thiện đáng kể phát âm, ngữ điệu, nhịp điệu, nối âm, kỹ năng nghe và độ lưu loát khi nói — đặc biệt hiệu quả cho người luyện IELTS Speaking và muốn giao tiếp tiếng Anh tự nhiên như người bản ngữ.