RELEASE.md: Update release instructions

- Remove stale info about gerrit
- Document how to create new release in github
- Document how to create new release for pypi
- Update RHEL release section
- Improve document organization

Fixes oVirt#46

Signed-off-by: Nir Soffer <nsoffer@redhat.com>

RELEASE.md

@@ -1,111 +1,142 @@
 # Releasing ovirt-imageio
 
-
 ## Upstream
 
-- Add changelog entry with short description of the changes in this
-  release.
-  See https://gerrit.ovirt.org/c/109665/
+1. Add changelog entry with short description of the changes in this
+   release:
+   https://github.com/oVirt/ovirt-imageio/commit/74bb6d1fe92d4054212859dc9963862effac340b
 
-- Add new annotated tag e.g "v2.0.2"
+2. Add new annotated tag e.g "vX.Y.Z"
 
-    $ git tag -a -m "Release 2.0.2 for oVirt 4.4.0" v2.0.2
+       $ git tag -a -m "Release X.Y.Z for oVirt 4.5.0" vX.Y.Z
 
-- Push the tag to gerrit
+3. Push the tag to github
 
-    $ git push --tags origin v2.0.2
+       $ git push --tags upstream vX.Y.Z
 
-- Send a patch to releng-tools project, adding the new version:
-  See https://gerrit.ovirt.org/108073/
+4. Create a new release in github form the new tag:
+   https://github.com/oVirt/ovirt-imageio/releases
 
-## Post release
+5. Download the rpms built by github, and upload them to the new
+   release:
+   https://github.com/oVirt/ovirt-imageio/releases/tag/vX.Y.Z
+
+6. Publish the release.
 
-- Bump version for next development cycle:
-  https://gerrit.ovirt.org/108091/
+7. Send a patch to releng-tools project, adding the new version:
+   https://github.com/oVirt/releng-tools/commit/97b353b1107ba4bd06776ed4c2e31b309909a357
 
 ### Where to get the packages
 
-This release tarball will be available immediately in github at:
-https://github.com/oVirt/ovirt-imageio/releases
+The packages are available via nsoffer/ovirt-imageio-preview copr repo:
+https://copr.fedorainfracloud.org/coprs/nsoffer/ovirt-imageio-preview/
 
-Packages are available via copr nsoffer/ovirt-imageio-preview repo. This
-repo is enabled by ovirt-release-master.rpm.
+When the releng-tools patch is be merged, the package will be
+published in the official repository for the release, via the
+ovirt-releaseXY.rpm.
 
-Packages are also available in the jenkins build for the
-version patch. Look for the build comment like:
-https://gerrit.ovirt.org/c/108091/#message-b7b37559_79ba9e75
+## Pypi
 
-Follow the link to the build, and follow the "Built artifacts link":
-https://jenkins.ovirt.org/job/ovirt-imageio_standard-on-merge/555/artifact/build-artifacts.py3.el8.x86_64/
+Some oVirt project consume ovirt-imageio via the python package index
+(pypi) at:
+https://pypi.org/project/ovirt-imageio/
 
-You can add a yum repo with this URL as base_url to upgrade
-ovirt-imageio.
+1. Clean the source tree
 
-The packages will be available later (few hours or days) at ovirt
-repositories:
-https://resources.ovirt.org/pub/ovirt-master-snapshot/rpm/el8/
+       $ make clean
 
-When the releng-tools patch is be merged, the package will be
-published in the official repository for the release:
-https://resources.ovirt.org/pub/ovirt-4.4-pre/rpm/el8/x86_64/
+2. Enter the ovirt-imageio virtual environment
+
+       $ source ~/venv/ovirt-imageio/bin/activate
+
+3. Install and update pip, build, and twine if needed
+
+       $ pip install --upgrade pip build twine
+
+4. Build the release
+
+       $ python -m build
 
+   This creates:
+   - dist/ovirt-imageio-X.Y.Z.tar.gz
+   - dist/ovirt_imageio-X.Y.Z-cp310-cp310-linux_x86_64.whl
+
+   We cannot publish the wheel because of binary compatibilities issues.
+
+5. Upload the package to pypi:
+
+       $ python -m twine upload dist/ovirt-imageio-X.Y.Z.tar.gz
+
+   Check the project page to make sure everything looks good:
+   https://pypi.org/project/ovirt-imageio/X.Y.Z/
 
 ## RHEL
 
 This parts works only inside the Red Hat network.
 
-Login using kinit:
+1. Create source rpm form the release tag
+
+       $ git checkout vX.Y.Z
+       $ make srpm
 
-   $ kinit
+   This source rpm is created in:
+   dist/ovirt-imageio-X.Y.Z-1.fc35.src.rpm
 
-Clone the project with rhpkg if needed:
+2. Login using kinit:
 
-    $ rhpkg clone ovirt-imageio ovirt-imageio-rhel
+       $ kinit
 
-Import new sources to the right branch.
+3. Clone the project with rhpkg if needed:
 
-    $ cd ovirt-imageio-rhel
-    $ rhpkg switch-branch rhevm-4.4-rhel-8
-    $ wget https://jenkins.ovirt.org/job/ovirt-imageio_standard-on-merge/555/artifact/build-artifacts.py3.el8.x86_64/ovirt-imageio-2.0.2-0.el8.src.rpm
-    $ rhpkg import ovirt-imageio-2.0.2-0.el8.src.rpm
-    $ rhpkg commit -m 'Release 2.0.2 for RHV 4.4.0'
+       $ rhpkg clone ovirt-imageio ovirt-imageio-rhel
 
-Try a scratch build:
+4. Import new sources to the right branch.
 
-    $ rhpkg scratch-build --srpm
+       $ cd ovirt-imageio-rhel
+       $ rhpkg switch-branch rhevm-4.5-rhel-8
+       $ rhpkg import ../ovirt-imageio/dist/ovirt-imageio-X.Y.Z-1.el8.src.rpm
+       $ rhpkg commit -m 'Release X.Y.Z for RHV 4.5.0'
 
-If the scratch build is successful, you will get mail from brew with a
-scratch repository for testing. Lookup mail with subject like:
+5. Try a scratch build:
 
-    "repo for scratch build of ovirt-imageio-2.0.2-2.el8ev is available"
+       $ rhpkg scratch-build --srpm
 
-In the mail you will find a repository URL. The repository includes a
-repo file that can be used for testing:
+   If the scratch build is successful, you will get mail from brew with
+   a scratch repository for testing. Lookup mail with subject like:
 
-    http://brew-task-repos.usersys.redhat.com/repos/scratch/nsoffer/ovirt-imageio/2.0.2/2.el8ev/ovirt-imageio-2.0.2-2.el8ev-scratch.repo
+       repo for scratch build of ovirt-imageio-2.0.2-2.el8ev is available
 
-If the scratch build looks good, push the change and make an official
-build:
+   In the mail you will find a repository URL. The repository includes a
+   repo file that can be used for testing:
 
-    $ rhpkg push
-    $ rhpkg build
+       http://brew-task-repos.usersys.redhat.com/repos/scratch/nsoffer/ovirt-imageio/X.Y.Z/1.el8ev/ovirt-imageio-X.Y.Z-1.el8ev-scratch.repo
 
-Brew will send you an official build repository that can be used for
-testing by other developers or testers. Consider telling people about it
-in rhev-devel mailing list.
+6. If the scratch build looks good, push the change and make an official
+   build:
 
+       $ rhpkg push
+       $ rhpkg build
+
+   Brew will send you an official build repository that can be used for
+   testing by other developers or testers. Consider telling people about
+   it in rhev-devel mailing list.
 
 ## Errata
 
 When the build is ready, you need to add the build to the errata.
 
 Visit https://errata.devel.redhat.com/ and find the errata. To find the
-errata, you can do packages search for ovirt-imageio, or vdsm.
+errata, you can do packages search for ovirt-imageio.
 
 To add the build to the errata, usually the easiest way is to use the
 package NVR (name, version, release):
 
-    ovirt-imageio-2.0.2-2.el8ev
+    ovirt-imageio-X.Y.Z-1.el8ev
 
 After adding the build, you may get mail about rpmdiff issues. You have
 to check the reports and wave the report if needed.
+
+## Post release
+
+Bump version for next development cycle:
+https://github.com/oVirt/ovirt-imageio/commit/79f1d6789b833b3acc6fea20264ed57d3a5eab5e