54 lines
2.3 KiB
Markdown
54 lines
2.3 KiB
Markdown
# Evergreen configuration
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This document describes the continuous integration (CI) configuration for MongoDB.
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## Projects
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There are a number of Evergreen projects supporting MongoDB's CI. For more information on
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Evergreen-specific terminology used in this document, please refer to the
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[Project Configuration](https://github.com/evergreen-ci/evergreen/wiki/Project-Configuration-Files)
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section of the Evergreen wiki.
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### `mongodb-mongo-master`
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The main project for testing MongoDB's dev environments with a number build variants,
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each one corresponding to a particular compile or testing environment to support development.
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Each build variant runs a set of tasks; each task ususally runs one or more tests.
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### `mongodb-mongo-master-nightly
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Tracks the same branch as `mongodb-mongo-master`, each build variant corresponds to a
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(version, OS, architecure) triplet for a supported MongoDB nightly release.
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### `sys_perf`
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The system performance project.
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### `microbenchmarks`
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Performance unittests, used mainly for validating areas related to the Query system.
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## Project configurations
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The above Evergreen projects are defined in the following files:
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* `etc/evergreen_yml_components/**.yml`. YAML files containing definitions for tasks, functions, buildvariants, etc.
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They are copied from the existing evergreen.yml file.
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* `etc/evergreen.yml`. Imports components from above and serves as the project config for mongodb-mongo-master,
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containing all build variants for development, including all feature-specific, patch build required, and suggested
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variants.
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* `etc/evergreen_nightly.yml`. The project configuration for mongodb-mongo-master-nightly, containing only build
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variants for public nightly builds, imports similar components as evergreen.yml to ensure consistency.
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* `etc/sys_perf.yml`. Configuration file for the system performance project.
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* `etc/perf.yml`. Configuration for the microbenchmark project.
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## Release Branching Process
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Only the `mongodb-mongo-master-nightly` project will be branched with required and other
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necessary variants (e.g. sanitizers) added back in. Most variants in `mongodb-mongo-master`
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would be dropped by default but can be re-introduced to the release branches manually on an
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as-needed basis. For Rapid releases, all but the variants relevant to Atlas in
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`mongodb-mongo-master-nightly` may be dropped as well.
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