![]() ![]() (build|run) : build - to include things like build-essential and gcc.: latest points to the latest Python 2 version, which currently is 2.7.17.: i386 - the intel 32 bit architecture that runs on Intel Edison. ![]() : omitted, we don't have a date frozen image, so new updates pushed to our 10.18 tag, for example patch versions from Node.js will automatically be inherited when they are available.īalenalib/i386-ubuntu-python:latest-bionic-build-20191029.(build|run) : omitted, so the image defaults to the slimmed down run variant.: 10.18 - This gives us Node.js version 10.18.x whatever is the latest patch version provided on balenalib.: node - the Node.js runtime and npm will be installed.: raspberrypi3 - The Raspberry Pi 3 device type.This ensures that all your dependencies have a fixed version and won't get randomly updated until you decide to pin the image to a newer release. Note: Pinning to a date-frozen base image is highly recommended if you are running a fleet in production. If a date tag is specified, the pinned release will always be pulled from Docker Hub, even if there is a new one available. The last optional field on tags is the date tag.If no variant is specified, the image defaults to run The run variants are stripped down and only include a few useful runtime tools, see an example here. You can see an example of the tools that are included in the Debian Stretch variant here. The build variant is much heavier as it has a number of tools preinstalled to help with building source code. For each combination of distro and stack, we have two variants called run and build.is the version of the Linux distro, for example in the case of Debian, there are 4 valid versions, namely sid, jessie, buster and stretch.is the version of the language stack, for example, Node.js 10.10, it can also be substituted for latest.In the tags, all of the fields are optional, and if they are left out, they will default to their latest pointer. This field is optional, and if left out, no language pack will be installed, so you will just have the distribution and you can later install and use any language in your image/container. is the programming language pack, currently we support Node.js, Python, OpenJDK.This field is optional and will default to Debian if left out. Currently there are 4 distributions, namely Debian, Alpine, Ubuntu and Fedora. Check the list of available base images for device names and architectures. The %%BALENA_MACHINE_NAME%% base images are bigger and include more tools. Images named with device type are built using base images named with architecture. If you are using Dockerfile.template, you can replace with %%BALENA_MACHINE_NAME%% or %%BALENA_ARCH%%. is either architecture or device type and is mandatory.In general, the naming scheme for the balenalib image set follows the pattern below: balenalib/-:-(build|run)- Image Names To pick the correct image, it helps to understand how the images are named as that indicates what is installed in the image. With over 26000 balenalib base images to choose from, it can be overwhelming to decide which image and tag are correct for your project. The set of balenalib base images follow a simple naming scheme described below, which will help you select a base image for your specific needs. In most cases, your project can just use a Debian based distribution, which is the default if not specified, but if you know the requirements of your project or prefer specific distros, Ubuntu, Alpine, and Fedora images are available. For this reason, it's recommended to start with -build variants, and as your project progresses, switch to a -run variant with some docker multistage build magic to slim your deploy image down. These images help you get setup faster and work out the requirements for your project. When starting out a project, it's generally easier to have a "fatter" image, which contains a lot of prebuilt dependencies and tools. Helpful package installer script called install_packages inspired by minideb.cross-build functionality for building ARM containers on x86.run and build variants designed for multistage builds.Dotnet: 6.0-sdk/runtime/aspnet and 7.0-sdk/runtime/aspnet.openJDK: 7-jdk/jre, 8-jdk/jre, 11-jdk/jre and 16-jdk.Debian: buster (10), bullseye (11), bookworm (12) and sid.This set of images provide a way to get up and running quickly and easily, while still providing the option to deploy slim secure images to the edge when you go to production. Balenalib is the central home for 26000+ IoT focused Docker images built specifically for balenaCloud and balenaOS.
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