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Since launching in 1994, Eurostar has transported over 150 million passengers, moving thousands beneath the Channel each day. To support its mobile booking and overbooking applications, Eurostar needed reliable hosting and support solutions.
Eurostar needed to optimise train capacity while also complying with new government legislation through the implementation of an Exit Check system.
Colibri recommended a blue/green deployment strategy using a secondary infrastructure stack within AWS. This stack was deployed using an Infrastructure-as-Code (IaC) approach, with an image of the existing production environment created to support the process.
New release procedures were defined, allowing deployment and testing on the inactive stack. Once approved, the new instances were seamlessly swapped into production. The inactive stack was then updated and tested to maintain readiness for future deployments.
For the overbookings application, Colibri provides AWS-managed hosting for the production environment, while development occurs within Eurostar’s environments, managed by their software partner.
Although the infrastructure itself is relatively straightforward, the previous release process required extended downtime (often three to four hours) for deployment and testing, due to the limitations of a single environment. As part of ongoing service improvement, Colibri explored alternative approaches to streamline releases, reduce system downtime, and lower risk.
The results of the update were immediate and significant: deployment downtime dropped from several hours to under five minutes. This new approach also enables controlled testing of releases, reducing risk and allowing for smoother, more predictable rollouts.
The same benefits extend to the monthly patching process, which previously required system downtime and extensive post-implementation testing. By applying the proven blue/green deployment model to patching, downtime and risk have been significantly reduced.
Colibri continues to monitor workload, cost, and security to identify further improvement opportunities. With extended support through its managed service, changes can now be implemented with greater confidence and minimal disruption to Eurostar and its customers.
Reduced to within 6-second lead time
Faster predictions on customers' needs and capturing new opportunities
+ 20 headcount in the data team
Unlock growth, efficiency and innovation through data and AI
Turning raw data into actionable, competitive insight
Modernise with purpose. Transform with data. Scale with AI
Intelligent solutions built for real-world business impact
Empowering cloud-first operations with confidence
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