v0.15.4

Summary

Re-add feature flags, streamline E2E test development, and refactor how some
things are configured.

Layer	Has changes	Needs migration
Account
Network
Build repository
Database
Service	✅	⚠️
CI/CD	✅

Migration notes

For secrets with manage_method="generated", if you want to avoid regenerating
the secrets, you can move the secrets to the new location with:

terraform -chdir=infra/<APP_NAME>/service state mv 'module.secrets["<SECRET_NAME>"].aws_ssm_parameter.secret[0]' 'module.secrets.aws_ssm_parameter.secrets["<SECRET_NAME>"]'
terraform -chdir=infra/<APP_NAME>/service state mv 'module.secrets["<SECRET_NAME>"].random_password.secret[0]' 'module.secrets.random_password.secrets["<SECRET_NAME>"]'    

Service

• Add SSM-based feature flags by @lorenyu in #873 and #883
• Convert secret module to create multiple secrets by @lorenyu in #877
• Add ability to run task commands in PR environment by @lorenyu in #879
• Add workflow to run E2E tests on demand by @lorenyu in #892 and c0c9cec

Tech debt and maintenance

• Generate infra service test id from timestamp by @lorenyu in #885
• Move monitoring config out of service root module by @lorenyu in #884
• Fix service module public_endpoint output when https enabled by @lorenyu in #893
• Docs
  • Fix typo in variable description by @coilysiren in #881
  • Fix link to project-config by @lorenyu in #882
• E2E testing refactors
  • Move test library files to lib by @lorenyu in #886
  • Move emailService to fixture for e2e tests by @lorenyu in #891
• bin/orphaned-pr-environments: Handle no PR envs and merged PRs better by @doshitan in #889

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Full Changelog: v0.15.3...v0.15.4