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author | Dan Finlay <dan@danfinlay.com> | 2019-02-20 04:33:12 +0800 |
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committer | Dan Finlay <dan@danfinlay.com> | 2019-02-20 04:35:59 +0800 |
commit | 160f1961654632654072759f0aa116b43a97f35b (patch) | |
tree | 80b7bd9a46003b8b582850946ffbd818d3bb65b6 /docs | |
parent | 29b64bdb17d5386b834c6938934d770ff62e4746 (diff) | |
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Add sensitive publishing protocolv6.1.0
Diffstat (limited to 'docs')
-rw-r--r-- | docs/publishing.md | 4 | ||||
-rw-r--r-- | docs/sensitive-release.md | 43 |
2 files changed, 47 insertions, 0 deletions
diff --git a/docs/publishing.md b/docs/publishing.md index 45662900d..132c28d9b 100644 --- a/docs/publishing.md +++ b/docs/publishing.md @@ -17,6 +17,10 @@ Version can be automatically incremented [using our bump script](./bumping-versi npm run version:bump $BUMP_TYPE` where `$BUMP_TYPE` is one of `major`, `minor`, or `patch`. +## Preparing for Sensitive Changes + +In the case that a new release has sensitive changes that cannot be fully verified prior to publication, please follow the [sensitive release protocol](./sensitive-release.md). + ## Building While we develop on the main `develop` branch, our production version is maintained on the `master` branch. diff --git a/docs/sensitive-release.md b/docs/sensitive-release.md new file mode 100644 index 000000000..e2c4e2f3d --- /dev/null +++ b/docs/sensitive-release.md @@ -0,0 +1,43 @@ +# Sensitive Release Protocol + +In the case that a new change is so dramatic that it is hard to anticipate all of the potential side-effects, here is a protocol for rolling out these sensitive changes in a way that: + +- Minimizes adverse impact on end users. +- Maximizes our responsiveness to these changes. + +## Protocol Steps + +1. Prepare a normal release. +2. Prepare a rollback release. +3. Roll the normal release out. +4. In case of emergency, roll back. + +### Normal Release + +Simply follow the steps in [the publishing guide](./publishing.md). + +### Prepare Rollback Release + +1. Check out the tagged commit for the release before this new release. +2. Increment the version over the new release by one patch. +3. Merge the changelog of the new release into this branch, and make its own changelog refer to rolling back those changes. +4. Push to the main repository and pull request against `master` prominently noting this is a `DO NOT MERGE` rollback pull request. + +### Roll the normal release out + +Ensure the rollback release has been built, and downloaded locally, fully ready to deploy with immediacy. + +For a sensitive release, initially roll out to only 1% of Chrome users (since Chrome allows incremental rollout). + +Monitor Sentry for any recognizable error logs. + +Gradually increase the rollout percentage. + +### In case of Emergency + +If a problem is detected, publish the roll-back release to 100% of users, identify the issue, fix it, and repeat this process with a new release. + +## Summary + +This protocol is a worst-case scenario, just a way to be incredibly careful about our most sensitive possible changes. + |