fix: make review app URLs predictable #806
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ivomurrell
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Mar 7, 2025
rowanmanning
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We now generate a hash based on the branch name and use this as a suffix
on review app names. This means a couple of things:
1. Review app names are predictable
2. Only one review app will be created per branch, with future commits
to that branch updating the existing review app instead of
deploying another one
This is good for a couple of reasons:
We can now hand the review app URL off to future jobs. This is important
for the n-test and cyprus plugins which expect a URL in the `review` or
`staging` state.
We will stop creating a new review app for every commit, we're already
seeing way too many review apps get created which is a problem while we
don't have automatic deletion of old review apps.
Changes to a PR will deploy faster because most of the review app
CloudFormation stack will have been created already - we'll be doing
updates instead of fully creating a new stack on each commit.
See-also: https://financialtimes.atlassian.net/browse/CPREL-1300
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Tip
This is a draft PR because the
--ephemeral-idargument has not been added to Hako yet. We'll need that work to happen and then we'll also need to update the Hako version as part of this PR.Description
We now generate a hash based on the branch name and use this as a suffix on review app names. This means a couple of things:
This is good for a couple of reasons:
We can now hand the review app URL off to future jobs. This is important for the n-test and cyprus plugins which expect a URL in the
revieworstagingstate.We will stop creating a new review app for every commit, we're already seeing way too many review apps get created which is a problem while we don't have automatic deletion of old review apps.
Changes to a PR will deploy faster because most of the review app CloudFormation stack will have been created already - we'll be doing updates instead of fully creating a new stack on each commit.
See-also: CPREL-1300
Checklist:
feat(circleci): add support for nightly workflows,fix: set Heroku app name for staging apps too