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Last updated: 23 Dec 2021

Load Testing

We sometimes need to run load tests against GOV.UK and for that we use a tool called Gatling. All the information on how to perform load testing is stored in the govuk-load-testing repository.

More in the Infrastructure section

Learn

• Domain Name System (DNS) records
• GOV.UK and Virtual Private Networks (VPNs)
• GOV.UK's environments (integration, staging, production)
• New instances fail to provision
• Rate Limiting
• Rollback Puppet if Jenkins is broken
• Upgrade Terraform

How to...

• Add a new Ruby version
• Databases on GOV.UK
• Generate a Certificate Signing Request (CSR) for GOV.UK
• Manage RabbitMQ
• Manually resize ASGs (auto scaling groups)
• Manually resize EBSs (elastic block store)
• Mapit Caches
• Move apps between servers
• Patch Jenkins
• Provision machines for data science research
• Reboot a machine
• Remove a machine
• Renew a TLS certificate for GOV.UK
• Reprovision a machine
• Scale Mapit
• Unable to SSH into a machine