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55 строки
2.0 KiB
ReStructuredText
55 строки
2.0 KiB
ReStructuredText
Release Promotion
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=================
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Release promotion allows us to ship the same compiled binaries that we've
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already tested.
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In the olden days, we used to re-compile our release builds with separate
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configs, which led to release-specific bugs which weren't caught by continuous
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integration tests. This meant we required new builds at release time, which
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increased the end-to-end time for a given release significantly. Release
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promotion removes these anti-patterns.
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By running our continuous integration tests against our shippable builds, we
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have a higher degree of confidence at release time. By separating the build
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phase tasks (compilation, packaging, and related tests) from the promotion
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phase tasks, we can schedule each phase at their own independent cadence, as
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needed, and the end-to-end time for promotion is reduced significantly.
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.. _release promotion phases:
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Release Promotion Phases
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------------------------
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Currently, we have the ``build``, ``promote``, ``push``, and ``ship`` phases.
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The ``build`` phase creates ``shippable builds``. These optimize for correctness
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over speed, and are designed to be of shipping quality, should we decide to
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ship that revision of code. These are triggered on push on release branches.
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(We also schedule ``depend`` builds on most branches, which optimize for speed
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over correctness, so we can detect new code bustage sooner.)
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The ``promote`` phase localizes the shippable builds, creates any update MARs,
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and populates the candidates directories on S3. (On Android, we rebuild, because
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we haven't been successful repacking the APK.)
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The ``push`` phase pushes the candidates files to the appropriate release directory
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on S3.
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The ``ship`` phase ships or schedules updates to users. These are often at a
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limited rollout percentage or are dependent on multiple downstream signoffs to
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fully ship.
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In-depth relpro guide
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---------------------
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.. toctree::
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release-promotion-action
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balrog
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setting-up-an-update-server
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partials
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signing
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partner-repacks
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partner-attribution
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