df45d53551
We're currently not using this cache /workdir and we ultimately can't right now until [1] lands in an rpm-ostree release. See some background context on this in [2] [3]. [1] https://github.com/coreos/rpm-ostree/pull/5391 [2] https://gitlab.com/fedora/bootc/base-images/-/merge_requests/180 [3] https://github.com/coreos/rpm-ostree/pull/5386
61 lines
2.9 KiB
Docker
61 lines
2.9 KiB
Docker
# In order to make a base image as part of a Dockerfile, this container build uses
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# nested containerization, so you must build with e.g.
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# podman build --security-opt=label=disable --cap-add=all --device /dev/fuse <...>
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# NOTE: This container build will output a single giant layer. It is strongly recommended
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# to run the "rechunker" on the output of this build, see
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# https://coreos.github.io/rpm-ostree/experimental-build-chunked-oci/
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# Override this repos container to control the base image package versions. For
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# example, podman build --from=quay.io/fedora/fedora:41 will get you a system
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# that uses Fedora 41 packages. Or inject arbitrary yum repos (COPR, etc) here.
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#
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# Note we also support --build-arg REPOS_IMAGE=quay.io/fedora/fedora:41 here
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# since konflux doesn't yet support --from.
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ARG REPOS_IMAGE=quay.io/fedora/fedora:rawhide
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ARG BUILDER_IMAGE=quay.io/fedora/fedora:rawhide
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FROM $REPOS_IMAGE as repos
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# BOOTSTRAPPING: This can be any image that has rpm-ostree, selinux-policy-targeted
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# and python3 (for bootc-base-imagectl).
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FROM $BUILDER_IMAGE as builder
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RUN dnf -y install rpm-ostree selinux-policy-targeted python3
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ARG MANIFEST=fedora-standard
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# The input git repository has .repo files committed to git rpm-ostree has historically
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# emphasized that. But here, we are fetching the repos from the container base image.
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# So copy the source, and delete the hardcoded ones in git, and use the container base
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# image ones. We can drop the ones commited to git when we hard switch to Containerfile.
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COPY . /src
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WORKDIR /src
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RUN rm -vf /src/*.repo
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RUN --mount=type=bind,rw,from=repos,src=/,dst=/repos <<EORUN
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set -xeuo pipefail
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# Put our manifests into the builder image in the same location they'll be in the
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# final image.
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./install-manifests
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# And embed the rebuild script
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install -m 0755 -t /usr/libexec ./bootc-base-imagectl
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# Verify that listing works
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/usr/libexec/bootc-base-imagectl list >/dev/null
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# Run the build script in the same way we expect custom images to do, and also
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# "re-inject" the manifests into the target, so secondary container builds can use it.
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/usr/libexec/bootc-base-imagectl build-rootfs --reinject --manifest=${MANIFEST} /repos /target-rootfs
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EORUN
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# This pulls in the rootfs generated in the previous step
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FROM scratch
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COPY --from=builder /target-rootfs/ /
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# Note in practice this won't be right in a cross build, so we don't
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# set it here. This placeholder is just to note that it *should* be set
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# by the larger build system (e.g. Konflux).
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LABEL org.opencontainers.image.version 43
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LABEL containers.bootc 1
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# This is an ad-hoc way for us to reference bootc-image-builder in
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# a way that in theory client tooling can inspect and find. Today
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# it isn't widely used.
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LABEL bootc.diskimage-builder quay.io/centos-bootc/bootc-image-builder
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# https://pagure.io/fedora-kiwi-descriptions/pull-request/52
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ENV container=oci
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# Make systemd the default
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STOPSIGNAL SIGRTMIN+3
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CMD ["/sbin/init"]
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