FREEDA is an ongoing research project aimed at supporting DevOps engineers in achieving failure-resilient and sustainable deployments of microservice-based applications across the Cloud-Edge computing continuum. This paper first introduces the context and core concept of FREEDA, followed by a focus on how it enhances the failure resilience of microservices deployed across the Cloud-Edge continuum. Specifically, we present a declarative approach for generating deployment constraints designed to enhance the resilience of microservices prior to their deployment. Additionally, we introduce a proof-of-concept implementation and highlight its potential through an illustrative example.