Amazon Linux provides a stable, secure, and high-performance execution environment for applications. Nov 17, 2020 Long gone days where Microsoft products are not open-source and architected only for Windows.In their efforts to make a strong footprint in the Linux market, Microsoft has announced on “Microsoft Ignite 2020” Edge browser is available for Linux as a dev preview. If you are using or upgrading from a version prior to GitLab Runner 10, read how to upgrade to the new version.If you want to install a version prior to GitLab Runner 10, visit the old docs. Docker Desktop provides binfmtmisc multi-architecture support, which means you can run containers for different Linux architectures such as arm, mips, ppc64le, and even s390x. This does not require any special configuration in the container itself as it uses qemu-static from the Docker for Mac VM.
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Docker images can support multiple architectures, which means that a singleimage may contain variants for different architectures, and sometimes for differentoperating systems, such as Windows.
When running an image with multi-architecture support, docker willautomatically select an image variant which matches your OS and architecture.
Most of the official images on Docker Hub provide a variety of architectures.For example, the busybox image supports amd64, arm32v5, arm32v6,arm32v7, arm64v8, i386, ppc64le, and s390x. When running this imageon an x86_64 / amd64 machine, the x86_64 variant will be pulled and run.
Docker Desktop provides binfmt_misc multi-architecture support,which means you can run containers for different Linux architecturessuch as arm, mips, ppc64le, and even s390x.
This does not require any special configuration in the container itself as it usesqemu-static from the Docker forMac VM. Because of this, you can run an ARM container, like the arm32v7 or ppc64levariants of the busybox image.
Buildx (Experimental)
Docker is now making it easier than ever to develop containers on, and for Arm servers and devices. Using the standard Docker tooling and processes, you can start to build, push, pull, and run images seamlessly on different compute architectures. Note that you don’t have to make any changes to Dockerfiles or source code to start building for Arm.
Docker introduces a new CLI command called buildx. You can use the buildx command on Docker Desktop for Mac and Windows to build multi-arch images, link them together with a manifest file, and push them all to a registry using a single command. With the included emulation, you can transparently build more than just native images. Buildx accomplishes this by adding new builder instances based on BuildKit, and leveraging Docker Desktop’s technology stack to run non-native binaries.
For more information about the Buildx CLI command, see Buildx.
Install
Download the latest version of Docker Desktop.
Follow the on-screen instructions to complete the installation process. After you have successfully installed Docker Desktop, you will see the Docker icon in your task tray.
Click About Docker Desktop from the Docker menu and ensure you have installed Docker Desktop version 2.0.4.0 (33772) or higher.
Build and run multi-architecture images
Run the command docker buildx ls to list the existing builders. This displays the default builder, which is our old builder.
Create a new builder which gives access to the new multi-architecture features.
Alternatively, run docker buildx create --name mybuilder --use to create a new builder and switch to it using a single command.
Switch to the new builder and inspect it.
Test the workflow to ensure you can build, push, and run multi-architecture images. Create a simple example Dockerfile, build a couple of image variants, and push them to Docker Hub.
Where, username is a valid Docker username.
Notes:
- The
--platformflag informs buildx to generate Linux images for AMD 64-bit, Arm 64-bit, and Armv7 architectures. - The
--pushflag generates a multi-arch manifest and pushes all the images to Docker Hub.
Inspect the image using imagetools.
The image is now available on Docker Hub with the tag username/demo:latest. You can use this image to run a container on Intel laptops, Amazon EC2 A1 instances, Raspberry Pis, and on other architectures. Docker pulls the correct image for the current architecture, so Raspberry Pis run the 32-bit Arm version and EC2 A1 instances run 64-bit Arm. The SHA tags identify a fully qualified image variant. You can also run images targeted for a different architecture on Docker Desktop.
You can run the images using the SHA tag, and verify the architecture. For example, when you run the following on a macOS:
In the above example, uname -m returns aarch64 and armv7l as expected, even when running the commands on a native macOS developer machine.
- Installing GitLab Runner
| Distribution | Version | End of Life date |
|---|---|---|
| Debian | stretch | June 2022 |
| Debian | buster | June 2024 |
| Ubuntu | xenial | April 2021 |
| Ubuntu | bionic | April 2023 |
| Ubuntu | focal | April 2025 |
| Mint | sarah, serena, sonya, sylvia | April 2021 |
| Mint | tara, tessa, tina, tricia | April 2023 |
| Mint | ulyana, ulyssa | April 2025 |
| RHEL/CentOS | 7 | June 2024 |
| CentOS | 8 | December 2021 |
| RHEL | 8 | May 2029 |
| Fedora | 32 | approx. May 2021 |
| Fedora | 33 | approx. Nov 2021 |
Prerequisites
If you want to use the Docker executor, make sure to install Docker beforeusing GitLab Runner. Read how to install Docker for your distribution.
Installing GitLab Runner
To install GitLab Runner:
Add the official GitLab repository:
Install the latest version of GitLab Runner, or skip to the next step toinstall a specific version:
Debian buster users should disable skel to preventNo such file or directory JobfailuresTo install a specific version of GitLab Runner:
After completing the step above, a runner should be started and beready to be used by your projects!
Make sure that you read the FAQ section which describessome of the most common problems with GitLab Runner.
APT pinning
A native package called gitlab-ci-multi-runner is available inDebian Stretch. By default, when installing gitlab-runner, that packagefrom the official repositories will have a higher priority.
If you want to use our package, you should manually set the source ofthe package. The best way is to add the pinning configuration file.
If you do this, the next update of the GitLab Runner package - whether it willbe done manually or automatically - will be done using the same source:
Updating GitLab Runner
Simply execute to install latest version:
Manually download packages
You can manually download and install thepackages if necessary.
Disable skel
Introduced in GitLab 12.10.
Sometimes the default skeleton (skel) directorycauses issues for GitLab Runner,and it fails to run a job. When installing GitLab Runner, set the environment variableGITLAB_RUNNER_DISABLE_SKEL to true before you install the package. This will createthe $HOME directory without the files inside of skel:
For example:
Upgrading to GitLab Runner 10
To upgrade GitLab Runner from a version prior to 10.0:
Remove the old repository:
Follow the same steps when installing GitLab Runner,without registering it and using the new repository.
For RHEL/CentOS/Fedora, run:
If you don’t run the above command, you will be leftwith no service file. Follow issue #2786for more information.
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Install Docker On Linux Ec2 Commands
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Install Docker On Linux Ec2 Enable
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