GitLab Developer Evangelism Team, 25 May 2021

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From YouTube: Gitlab Runner on OCI ARM64

Description

"Gitlab Runner on Oracle Cloud Infrastructure (OCI) ARM64" by Abubakar Siddiq Ango, Developer Evangelism Program Manager at GitLab. Read more about the collaboration and how to setup GitLab Runner on OCI ARM64 instances at https://about.gitlab.com/blog/2021/05/25/gitlab-oracle-cloud-arm-based

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Hi, I'm walker from gitlab and in this video I'll, be discussing the recent partnership between gitlab and the oracle cloud infrastructure, availing uarm64 instances to build your application start getting mobile edge and energy conscious deployment.

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Now our cool cloud infrastructure recently launched rm64 instances to avail developers and organizations the necessary platform to build applications targeting these devices, and we know you can already build arm64 applications, but you have to use emulator which can be less energy energy efficient or can consume more resources than necessary. But when you are using native infrastructure like the one provided by the oracle cloud infrastructure, you are able to build faster, more energy efficiently and your organization can get more return on investments than expanding more resources.

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Now, if you want to install gitlab itself, the most recommended way is to use the deploy to oracle cloud button within the oci console. That's the most recommended it uses best practices and well tested scripts to make sure your gitlab instance is deployed efficiently.

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Now, if you want to install your runner, you can also do that within the oci console. But if you want to install it on a an arm64 vm instance or on oci, you can create your instance within the console and uh I'll be showing you in the rest of this video, how you can set up your gitlab runner now, if you will be using our cool linux, server version, 8, there's a caveat because gitlab uses the package cloud platform to host our binaries, so unpackage cloud doesn't create his support or our linux version 8..

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So you will need to manually specify download the package registry package repository script that you need to set up and specify that you need manually that you needed to set up for oracle. Linux version 8., so next I'll be showing you how to do this manually.

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Okay from here we'll be installing the gitlab runner. So if I say yum install uh minus y uh gitlab runner, since we were since we've already configured the uh the package, uh the package repository.

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Let me still do this. My system is a bit slow, I'm on the hot weather, so this will download uh the necessary packages for me for arn64 and install the gitlab runner.

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Now remember we had to manually configure our package repository since uh package cloud doesn't currently support uh oracle linux 8., so we had to specify the os as el and specify the version as it now. If I then, let me try to see gitlab dash rona.

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Status- let's see if it's running yep it's running now. The next thing for me to do is to configure.

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uh I have a project, a sample project that I'm working with, and I will be setting up the runner directly specifically for this project. So from within gitlab, I will be I'll. Go to settings. Ci cd go to runner.

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Currently, the project is currently using uh the runner provided by the gitlab.com service so, but instead I'll be registering a runner for myself for specifically for this project and the rona the digital I just installed on the arm64 instance is what I'll be using gitlab dash rona register.

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Then, once I do this, then I it will ask me for the url, which is gitlab.com for now. I need to ask me for the runa token. This is my runner token for this project. Then, as I paste.

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No need for this, then I'll be specifying the runner tags. I don't need any tag and it will ask me what execute I'll be using for this particular instance I'll be using docker.

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And it's asking me for the default document since I'll be my sample project is building uh docker images for arm64, so I'll basically say the default image you should use is docker latest then, once I presented it has been successfully registered. So if I go back to my project, let's quickly look at what my project looks like or it's. So it's basically a c code. I took it from the internet. I didn't write the code myself. I think I got it from the docker blog and basically, what it does is to echo hello.

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My architecture is this now, and the project also contains a docker file which does the build. This is the code die to execute and there's a docker file which basically builds the project and.

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Which basically builds the project and runs the script now and we have the gitlab ciemo file. That is where the main activities happen. I'm using docker build x to build packages. You can use docker build as to build docker images for different uh architectures, for example. Here what I did here is to use the sample docker cimo file, gitlab.cml file, that that is provided by gitlab the default template. Then I modified it first.

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I changed the official docker image to use here, I'm using this, because it contains the main docker, stable image and also uh the buildex plugin. Then here I make sure to specify that okay, I want the card indeed to happen, and I want to log into the gitlab container registry so so that I can push my image once I'm done then from here. We also have the some specifications around the branch and some other details to specify what we are doing.

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Then here we have the docker builders command that will build our image and push it and also inspect our image to see okay. What was built and uh docker run to actually execute the uh the uh the docker container unless to see what will happen here for the docker build x, build you can specify. If you are using uh an x86 uh architecture, you can and you've configured your docker properly. You can specify some specific platforms that you need to generate so docker.

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We use the camo emulator to now target this platform, but because we have an arm 64 instance, we can definitely.

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We don't need that, so we can directly build from here because we are doing docker in docker I'll, go back to my instance to check my gitlab runner configuration so let's do v, slash, etc, slash gitlab, gitlab, runner, config, dots, tomo. Now what we were doing here is tokyo using docker latest, and the next thing I want to do is to specify that this should uh should use privileged docker.

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The reason why you you, you might not need this for your use case, but I'm just using it since I'll, be building I'll, be using dnd docker in docker to build my images, and I I would want it to have privilege.

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This might not be the right use case for you, so please use whatever is secure for your platform. So let me restart my gitlab runner. This might not be necessary for you, but let me restart.

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To make sure my new settings is taken now, as you can see here, my architecture is arm64 and I'm running linux written system. Now, let's go back to my project to confirm that we have.

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My runner has been uh has appeared here and uh rona has appeared here, yeah as you can see, it has appeared, and I will disable it from using shared runners.

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Now I'll also come to my runner here to make sure that it's available, it's not locked yeah locked to this project, protected, yep active and it's not on hold for anything, can run on tax. Yes, now, let's go back to.

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uh Let's go back to my project and now let me show you an example run that I did earlier, uh which was using the git lab shared runners. You see it built my images and also displays the architecture of the image that was built. So let's come here.

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And let's see the build log.

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So, as you can see it built it built it and it I run the docker image and it should make you choose linux running on x8664.

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So now let me run the pipeline of this project and uh we'll see what happens with our new runner running on iron 64, aarch, 64.. Sorry, my system is a bit slow due to network and yeah. The weather is a bit hot, so uh mark mac runs slow. Sometimes when the weather is hot, also I'll be running from the main branch so directly run pipeline.

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I don't have any specific variables to use, so let's go to the job log and just see it uh go through so now, since the architecture has been specified, docker should be able to build uh package targeting here in 64., hi yeah. This is the final uh end result of the build process.

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As you can see here, my image is saying: my architecture is linux this and it a el 8, which is uh the oracle linux version 8 and a rc h64, which is arm64 see the difference is the one I showed earlier when I was using the gitlab shared rona is uh x86 64. While here it's a rch64, I made a number of changes while during the build process the uh the process failed. So I made a couple of changes to my runner, which is basically configuring.

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My git slab runner to run in privilege mode and some other docker configuration to make sure my my images are built properly and I also changed the base image. I was using to one thou supported arm64. I forgot that the one I was using before was amd64, and I also made some changes just basically docker things. Thank you very much for joining me and I hope you test.

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You will deploy gitlab runner on the oci platform very soon, and if you have any questions, you can always comment, and you can always add your comment in the to this blog or contact us reach out to gitlab in the forum or in your debut or you can. If you're a customer enterprise customer, you can send an email to gitlab support at gitlab.com or use the support platform.

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Thank you very much.