All of these main bullet points should be a separate commit but they should be pushed together in the same commit queue task. The reason they should be pushed as separate commits is in the case of needing to revert one aspect of this entire task.

• Change references from "master" to "v8.0" in copybara configurations
  • copybara.sky
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/copybara.sky#L10
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/copybara.sky#L15-L16
  • copybara.staging.sky
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/copybara.staging.sky#L10
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/copybara.staging.sky#L15-L16

• Change references from "master" to "v8.0" in evergreen nightly project configurations
  • etc/evergreen_yml_components/definitions.yml - suffix in "get buildnumber" function
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/etc/evergreen_yml_components/definitions.yml#L433

• Update filename suffixes from "latest" to "v8.0-latest" in buildscripts/generate_version_expansions.py
  • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/buildscripts/generate_version_expansions.py#L64-L65

• Remove variants from sys-perf
  • comment out "etc/evergreen_yml_components/variants/perf/perf.yml" import from etc/system_perf.yml
    • https://github.com/10gen/mongo/blob/c27fd1839d4331f539426a40fa0c3f4b7d5a81bb/etc/system_perf.yml#L12

• Move variants to evergreen nightly project
  • comment/uncomment lines in "include" list as the comments above those lines suggest
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/etc/evergreen_nightly.yml#L3-L48

• Promote variants to be "required" by replacing "* " prefixes with "! "
  • * Amazon Linux 2 arm64 Enterprise
    • https://github.com/10gen/mongo/blob/ea8d0310ea95bc54ec365f2dfaeac7cdf79ae6dc/etc/evergreen_yml_components/variants/amazon/test_dev.yml#L108-L132
  • * Shared Library {A,UB}SAN Enterprise RHEL 8.0 DEBUG
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/etc/evergreen_yml_components/variants/sanitizer/test_dev.yml#L199
  • * Enterprise Windows
    • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/etc/evergreen_yml_components/variants/windows/test_dev.yml#L88

• Remove variants that don't exist in evergreen nightly project from burn_in_tags configuration
  • https://github.com/10gen/mongo/blob/32d4eea5ba52acc13f7b154931abde46df161704/etc/evergreen_yml_components/variants/misc/misc.yml#L17-L18