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diff --git a/docs/toi/branches.md b/docs/toi/branches.md new file mode 100644 index 0000000000..d52ac05d79 --- /dev/null +++ b/docs/toi/branches.md @@ -0,0 +1,191 @@ +# Git Branches in CSIT + +#### Content + +- [Overview](#overview) +- [Operational Branches](#operational-branches) +- [Release Branches](#release-branches) + +## Overview + +This document describes how to create and remove git branches in CSIT project. + +To be able to perform everything described in this file, you must be **logged +in as a committer**. + +## Operational Branches + +For more information about operational branches see +[CSIT/Branching Strategy](https://wiki.fd.io/view/CSIT/Branching_Strategy) and +[CSIT/Jobs](https://wiki.fd.io/view/CSIT/Jobs) on +[fd.io](https://fd.io) [wiki](https://wiki.fd.io/view/CSIT) pages. + +> Note: The branch `rls2009_lts` is used here only as an example. + +### Pre-requisites + +1. The last builds of weekly and semiweekly jobs must finish with status + *"Success"*. +1. If any of watched jobs failed, try to find the root cause, fix it and run it + again. + +The watched jobs are: + +- master: + - [csit-vpp-device-master-ubuntu1804-1n-skx-weekly](https://jenkins.fd.io/view/csit/job/csit-vpp-device-master-ubuntu1804-1n-skx-weekly) + - [csit-vpp-device-master-ubuntu1804-1n-skx-semiweekly](https://jenkins.fd.io/view/csit/job/csit-vpp-device-master-ubuntu1804-1n-skx-semiweekly) +- 2009_lts: + - [csit-vpp-device-2009_lts-ubuntu1804-1n-skx-weekly](https://jenkins.fd.io/view/csit/job/csit-vpp-device-2009_lts-ubuntu1804-1n-skx-weekly) + - [csit-vpp-device-2009_lts-ubuntu1804-1n-skx-semiweekly](https://jenkins.fd.io/view/csit/job/csit-vpp-device-2009_lts-ubuntu1804-1n-skx-semiweekly) + +### Procedure + +**A. CSIT Operational Branch** +1. Take the revision string from the last successful build of the **weekly** + job, e.g. **Revision**: 0f9b20775b4a656b67c7039e2dda4cf676af2b21. +1. Open [Gerrit](https://gerrit.fd.io). +1. Go to + [Browse --> Repositories --> csit --> Branches](https://gerrit.fd.io/r/admin/repos/csit,branches). +1. Click `CREATE NEW`. +1. Fill in the revision number and the name of the new operational branch. Its + format is: `oper-YYMMDD` for master and `oper-rls{RELEASE}-{YYMMDD}` or + `oper-rls{RELEASE}_lts-{YYMMDD}` for release branches. +1. Click "CREATE". +1. If needed, delete old operational branches by clicking "DELETE". + +**B. VPP Stable version** +1. Open the console log of the last successful **semiweekly** build and search + for VPP version (e.g. vpp_21 ...). +1. You should find the string with this structure: + `vpp_21.01-rc0~469-g7acab3790~b368_amd64.deb` +1. Modify [VPP_STABLE_VER_UBUNTU_BIONIC](../../VPP_STABLE_VER_UBUNTU_BIONIC) + and [VPP_STABLE_VER_CENTOS](../../VPP_STABLE_VER_CENTOS) files. +1. Use a string with the build number, e.g. `21.01-rc0~469_g7acab3790~b129` + for [VPP_STABLE_VER_CENTOS](../../VPP_STABLE_VER_CENTOS) and a string + without the build number, e.g. `21.01-rc0~469_g7acab3790` for + [VPP_STABLE_VER_UBUNTU_BIONIC](../../VPP_STABLE_VER_UBUNTU_BIONIC). +1. Update the stable versions in master and in all LTS branches. + +## Release Branches + +> Note: VPP release 21.01 is used here only as an example. + +### Pre-requisites + +1. VPP release manager sends the information email to announce that the RC1 + milestone for VPP {release}, e.g. 21.01, is complete, and the artifacts are + available. +1. The artifacts (*.deb and *.rpm) should be available at + `https://packagecloud.io/fdio/{release}`. For example see artifacts for the + [VPP release 20.01](https://packagecloud.io/fdio/2101). The last available + build is to be used. +1. All CSIT patches for the release are merged in CSIT master branch. + +### Procedure + +**A. Release branch** + +1. Open [Gerrit](https://gerrit.fd.io). +1. Go to + [Browse --> Repositories --> csit --> Branches](https://gerrit.fd.io/r/admin/repos/csit,branches). +1. Save the revision string of master for further use. +1. Click `CREATE NEW`. +1. Fill in the revision number and the name of the new release branch. Its + format is: `rlsYYMM`, e.g. rls2101. +1. Click "CREATE". + +**B. Jenkins jobs** + +See ["Add CSIT rls2101 branch"](https://gerrit.fd.io/r/c/ci-management/+/30439) +and ["Add report jobs to csit rls2101 branch"](https://gerrit.fd.io/r/c/ci-management/+/30462) +patches as an example. + +1. [csit.yaml](https://github.com/FDio/ci-management/blob/master/jjb/csit/csit.yaml): + Documentation of the source code and the Report + - Add release branch (rls2101) for `csit-docs-merge-{stream}` and + `csit-report-merge-{stream}` (project --> stream). +1. [csit-perf.yaml](https://github.com/FDio/ci-management/blob/master/jjb/csit/csit-perf.yaml): + Verify jobs + - Add release branch (rls2101) to `project --> jobs --> + csit-vpp-perf-verify-{stream}-{node-arch} --> stream`. + - Add release branch (rls2101) to `project --> project: 'csit' --> stream`. + - Add release branch (rls2101) to `project --> project: 'csit' --> stream_report`. +1. [csit-tox.yaml](https://github.com/FDio/ci-management/blob/master/jjb/csit/csit-tox.yaml): + tox + - Add release branch (rls2101) to `project --> stream`. +1. [csit-vpp-device.yaml](https://github.com/FDio/ci-management/blob/master/jjb/csit/csit-vpp-device.yaml): + csit-vpp-device + - Add release branch (rls2101) to `project --> jobs (weekly / semiweekly) --> stream`. + - Add release branch (rls2101) to `project --> project: 'csit' --> stream`. + +**C. VPP Stable version** + +See the patch +[Update of VPP_REPO_URL and VPP_STABLE_VER files](https://gerrit.fd.io/r/c/csit/+/30461) +as an example. + +1. Find the last successful build on the + [Package Cloud](https://packagecloud.io) for the release, e.g. + [VPP release 20.01](https://packagecloud.io/fdio/2101). +1. Clone the release branch to your PC: + `git clone --depth 1 ssh://<user>@gerrit.fd.io:29418/csit --branch rls{RELEASE}` +1. Modify [VPP_STABLE_VER_UBUNTU_BIONIC](../../VPP_STABLE_VER_UBUNTU_BIONIC) + and [VPP_STABLE_VER_CENTOS](../../VPP_STABLE_VER_CENTOS) files with the last + successful build. +1. Modify [VPP_REPO_URL](../../VPP_REPO_URL) to point to the new release, e.g. + `https://packagecloud.io/install/repositories/fdio/2101`. +1. You can also modify the [.gitreview](../../.gitreview) file and set the new + default branch. +1. Wait until the verify jobs + - [csit-vpp-device-2101-ubuntu1804-1n-skx](https://jenkins.fd.io/job/csit-vpp-device-2101-ubuntu1804-1n-skx) + - [csit-vpp-device-2101-ubuntu1804-1n-tx2](https://jenkins.fd.io/job/csit-vpp-device-2101-ubuntu1804-1n-tx2) + + successfully finish and merge the patch. + +**D. CSIT Operational Branch** + +1. Manually start (Build with Parameters) the weekly job + [csit-vpp-device-2101-ubuntu1804-1n-skx-weekly](https://jenkins.fd.io/view/csit/job/csit-vpp-device-2101-ubuntu1804-1n-skx-weekly) +1. When it successfully finishes, take the revision string e.g. **Revision**: + 876b6c1ae05bfb1ad54ff253ea021f3b46780fd4 to create a new operational branch + for the new release. +1. Open [Gerrit](https://gerrit.fd.io). +1. Go to + [Browse --> Repositories --> csit --> Branches](https://gerrit.fd.io/r/admin/repos/csit,branches). +1. Click `CREATE NEW`. +1. Fill in the revision number and the name of the new operational branch. Its + format is: `oper-rls{RELEASE}-YYMMDD` e.g. `oper-rls2101-201217`. +1. Click "CREATE". +1. Manually start (Build with Parameters) the semiweekly job + [csit-vpp-device-2101-ubuntu1804-1n-skx-semiweekly](https://jenkins.fd.io/view/csit/job/csit-vpp-device-2101-ubuntu1804-1n-skx-semiweekly) +1. When it successfully finishes check in console log if it used the right VPP + version (search for `VPP_VERSION=`) from the right repository (search for + `REPO_URL=`). + +**E. Announcement** + +If everything is as it should be, send the announcement email to +`csit-dev@lists.fd.io` mailing list. + +*Example:* + +Subject: +```text +CSIT rls2101 branch pulled out +``` + +Body: +```text +CSIT rls2101 branch [0] is created and fully functional. + +Corresponding operational branch (oper-rls2101-201217) has been created too. + +We are starting dry runs for performance ndrpdr iterative tests to get initial +ndrpdr values with available rc1 packages as well as to test all the infra +before starting report data collection runs. + +Regards, +<signature> + +[0] https://git.fd.io/csit/log/?h=rls2101 +``` |