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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 14:31:17 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 14:31:17 +0000
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Adding upstream version 1.37.1.upstream/1.37.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!--
+title: How to build native (DEB/RPM) packages locally for testing
+description: Instructions for developers who need to build native packages locally for testing.
+custom_edit_url: https://github.com/netdata/netdata/edit/master/packaging/building-native-packages-locally.md
+keywords: [Netdata native package, Netdata RPM, Netdata DEB, Testing native packages Netdata]
+-->
+
+# How to build native (DEB/RPM) packages locally for testing
+
+## Requirements
+
+To build native packages locally, you will need the following:
+
+* A working Docker or Podman host.
+* A local copy of the source tree you want to build from.
+
+## Building the packages
+
+In the root of the source tree from which you want to build, clean up any existing files left over from a previous build
+and then run:
+
+```bash
+docker run -it --rm -e VERSION=0.1 -v $PWD:/netdata netdata/package-builders:<tag>
+```
+
+or
+
+```bash
+podman run -it --rm -e VERSION=0.1 -v $PWD:/netdata netdata/package-builders:<tag>
+```
+
+The `<tag>` should be the lowercase distribution name with no spaces, followed by the
+release of that distribution. For example, `centos7` to build on CentOS 7, or `ubuntu20.04`
+to build on Ubuntu 20.04. Note that we use Alma Linux for builds on CentOS/RHEL 8 or newer. See
+[netdata/package-builders](https://hub.docker.com/r/netdata/package-builders/tags) for all available tags.
+
+The value passed in the `VERSION` environment variable can be any version number accepted by the type of package
+being built. As a general rule, it needs to start with a digit, and must include a `.` somewhere.
+
+Once it finishes, the built packages can be found under `artifacts/` in the source tree.
+
+If an error is encountered and the build is being run interactively, it will drop to a shell to allow you to
+inspect the state of the container and look at build logs.
+
+### Detailed explanation
+
+The environments used for building our packages are fully self-contianed Docker images built from [Dockerfiles](https://github.com/netdata/helper-images/tree/master/package-builders)
+These are published on Docker
+Hub with the image name `netdata/package-builders`, and tagged using the name and version of the distribution
+(with the tag corresponding to the suffix on the associated Dockerfile).
+
+The build code expects the following requirements to be met:
+
+- It expects the source tree it should build from to be located at `/netdata`, and expects that said source tree
+ is clean (no artifacts left over from previous builds).
+- It expects an environment variable named `VERSION` to be defined, and uses this to control what version number
+ will be shown in the package metadata and filenames.
+
+Internally, the source tree gets copied to a temporary location for the build process so that the source tree can
+be mounted directly from the host without worrying about leaving a dirty tree behind, any templating or file
+movements required for the build to work are done, the package build command is invoked with the correct arguments,
+and then the resultant packages are copied to the `artifacts/` directory in the original source tree so they are
+accessible after the container exits.
+
+## Finding build logs after a failed build
+
+Build logs and artifacts can be found in the build directory, whose location varies by distribution.
+
+On DEB systems (Ubuntu and Debian), the build directory inside the container is located at `/usr/src/netdata`
+
+On RPM systems except openSUSE, the build directory inside the container is located under `/root/rpmbuild/BUILD/`
+and varies based on the package version number.
+
+On openSUSE, the build directory inside the container is located under `/usr/src/packages/BUILD`and varies based
+on the package version number.
+
+## Building for other architectures
+
+If you need to test a build for an architecture that does not match your host system, you can do so by setting up
+QEMU user-mode emulation. This requires a Linux kernel with binfmt\_misc support (all modern distributions provide
+this out of the box, but I’m not sure about WSL or Docker Desktop).
+
+The quick and easy way to do this is to run the following:
+
+```bash
+docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+```
+
+or
+
+```bash
+podman run --rm --privileged multiarch/qemu-user-static --reset -p yes
+```
+
+This will set up the required QEMU user-mode emulation until you reboot. Note that if using Podman, you will need
+to run this as root and not as a rootless container (the package builds work fine in a rootless container though,
+even if doing cross-architecture builds).
+
+Once you have that set up, the command to build the packages is the same as above, you just need to add a correct
+`--platform` option to the `docker run` or `podman run` command. The current list of architectures we build for,
+and the correct value for the `--platform` option is:
+
+- 32-bit ARMv7: `linux/arm/v7`
+- 64-bit ARMv8: `linux/arm64/v8`
+- 32-bit x86: `linux/i386`
+- 64-bit x86: `linux/amd64`