doc: add OWNERS and redhat/ directory

These OWNERS files are needed for the openshift-ci bot to allow members
of the Ceph-CSI team to approve PRs and merge them automatically.

The redhat/ directory contains a README.md with details about the
downstream procedures. A Container file has been added as well, which
will allow running builds on the OpenShift CI for the PRs that are
created.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2021-08-12 10:23:57 +02:00
parent 6cc37f0a17
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**You must EDIT ME! The contents below is an example only.**
Bug 000000 gets hit when the system is out for its birthday party. After
providing the system with sufficient cake, it returns to normal business the
next day.
I hereby confirm that:
- [ ] this change is in the upstream project (*reference?*)
- [ ] this change is in the devel branch of this project
- [ ] branches for higher versions of the project have this change merged
- [ ] this PR is not *downstream-only*, if that was the case, I would have
explained its need very clearly

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**You must EDIT ME! The contents below is an example only.**
The downstream CI testing depends on additional settings in the Search
Optimization so that the project contributors can get a piece of chocolate for
every merged PR.

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**You must EDIT ME! The contents below is an example only.**
Sync the upstream changes from `ceph/ceph-csi:devel` into the `devel` branch.
The most important recent changes that we want included are:
- the new foz bar baz works flawlessly
- this addresses a bug where users are facing issues with XYZ
- ...

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approvers:
- ceph-csi-team
reviewers:
- ceph-csi-team

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aliases:
ceph-csi-team:
- agarwal-mudit
- humblec
- madhu-1
- nixpanic
- rakshith-r
- yati1998
- yuggupta27

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# This Containerfile is used by openshift-ci to build the image, and push it to
# quay.io/ocs-dev/ceph-csi
#
# This image is based on the latest stable Ceph version, which uses CentOS.
#
# Note that other tests run on the latest Fedora release. That makes the binary
# that gets build not necessary compatible with the Ceph version on other
# distributions. Hence the need to rebuild the executable on the OS that will
# be used as deployment image.
#
# Ideally we use a base container that is very closely like the Red Hat Ceph
# Storage (RHCS) product. Unfortunately those container images are not publicly
# available, so we will use the latest Ceph version that is available. If we
# settle on a particular Ceph version, we might be missing out on backports
# that the RHCS product contains (and compiling might fail).
FROM docker.io/ceph/daemon-base:latest AS builder
ENV GOPATH=/go
# install dependencies
RUN dnf -y install \
git \
golang \
make \
librados-devel \
librbd-devel \
&& dnf -y update \
&& dnf clean all \
&& true
# compile and link the executable
COPY . /go/src/github.com/ceph/ceph-csi
RUN cd /go/src/github.com/ceph/ceph-csi && make
# final container to use in deployments
FROM docker.io/ceph/daemon-base:latest
COPY --from=builder /go/src/github.com/ceph/ceph-csi/_output/cephcsi /usr/local/bin/cephcsi
RUN chmod +x /usr/local/bin/cephcsi
ENTRYPOINT ["/usr/local/bin/cephcsi"]

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# Ceph-CSI Stream
Ceph-CSI Stream is the Red Hat downstream project that contains the pre-release
state of Ceph-CSI as used in the OpenShift Data Foundation product.
## Git Repository
### Branches
This GitHub repository contains branches for different product versions.
## Backports
All changes in this repository are *backports* from the [upstream
project][upstream-ceph-csi]. There should be no functional changes (only
process/CI/building/..) in this repository compared to the upstream project.
Fixes for any of the release branches should first land in the devel branch
before they may be backported to the release branch. A backport for the oldest
release should also be backported to all the newer releases in order to prevent
re-introducing a bug when a user updates.
### Sync `devel` with upstream `ceph/ceph-csi:devel`
Syncing branches (including the `devel` branch) from upstream should be done
with a Pull-Request. To create a PR that syncs the latest changes from
`ceph/ceph-csi:devel` into the `devel branch`, [click here][sync-pr].
### Backporting changes from the `devel` to `release-*` branches
Once a PR has been merged in the devel branch that fixes an issue, a new PR
with the backport can be created. The easiest way is to use a command like
```
/cherry-pick release-4.9
```
The **openshift-cherrypick-robot** will automatically create a new PR for the
selected branch.
### Pull Requests
Once the product planning enters feature freeze, only backports with related
Bugzilla references will be allowed to get merged.
To assist developers, there are several Pull Request templates available. It is
recommended to use these links when creating a new Pull Request:
- [backport][backport-pr]: `?template=redhat-backport.md`
- [downstream-only][ds-only-pr]: `?template=redhat-downstream-only.md`
- [sync][sync-pr]: or add `?template=redhat-sync.md`
The `?template=...` appendix can be used when creating the Pull Requests
through other means than the links above. By appending the `?template=...`
keyword to the Pull Request URL, the template gets included automatically.
### Downstream-Only Changes
For working with the downstream tools, like OpenShift CI, there are a few
changes required that are not suitable for the upstream Ceph-CSI project.
1. `OWNERS` file: added with maintainers for reviewing and approving PRs
1. `OWNERS_ALIASES` file: members of the Ceph-CSI team
1. `redhat/` directory: additional files (like this `README.md`)
1. `redhat/Containerfile`: used to build the quay.io/ocs-dev/ceph-csi image
1. `.github/PULL_REQUEST_TEMPLATE/redhat-*`: guidance for creating PRs
## Continuous Integration
OpenShift CI (Prow) is used for testing the changes that land in this GitHub
repository. The configuration of the jobs can be found in the [OpenShift
Release repository][ocp-release].
### Container Images
Images that have been built from a PR that was merged will get automatically
pushed into [the Qoay.io registry][quay-ceph-csi]. The configuration for the
mirroring job is part of the [OpenShift Release
repository][ocp-release-mirror].
When a new release is planned, the mirroring will need to have the new branch
and tags listed as well.
Consumption of these images does not require any permissions, the images can be
pulled with podman like:
```
podman pull quay.io/ocs-dev/ceph-csi:latest
```
### Bugzilla Plugin
PRs that need a Bugzilla reference are handled by the Bugzilla Plugin which
runs as part of Prow. The configuration gates the requirement on BZs to be
linked, before the tests will pass and the PR can be merged. Once a branch is
added to the GitHub repository, [the configuration][bz-config] needs adaption
for the new branch as well.
[upstream-ceph-csi]: https://github.com/ceph/ceph-csi
[sync-pr]: https://github.com/red-hat-storage/ceph-csi/compare/devel...ceph:devel?template=redhat-sync.md
[backport-pr]: https://github.com/red-hat-storage/ceph-csi/compare/release-4.9...devel?template=redhat-backport.md
[ds-only-pr]: https://github.com/red-hat-storage/ceph-csi/compare/devel...ceph:devel?template=redhat-downstream-only.md
[ocp-release]: https://github.com/openshift/release/tree/master/ci-operator/config/red-hat-storage/ceph-csi
[ocp-release-mirror]: https://github.com/openshift/release/tree/master/core-services/image-mirroring/ceph-csi
[quay-ceph-csi]: https://quay.io/repository/ocs-dev/ceph-csi?tab=tags
[bz-config]: https://github.com/openshift/release/blob/master/core-services/prow/02_config/red-hat-storage/ceph-csi/_pluginconfig.yaml