Question 1

How to deploy Flagr on Kubernetes?

Accepted Answer

Flagr can be deployed using its Docker image; for Kubernetes, you need to create deployment and service configurations, but persistence and high availability setups require additional manual configuration as the documentation doesn't provide out-of-the-box Helm charts.

Question 2

Flagr vs Unleash: which is better for open-source feature flags?

Accepted Answer

Flagr is written in Go and emphasizes performance with low-latency APIs, while Unleash is Node.js-based with a larger plugin ecosystem. Choose Flagr for high-throughput Go environments or Unleash for more extensibility and community integrations.

Question 3

Can Flagr handle percentage-based rollouts for feature flags?

Accepted Answer

Yes, Flagr supports percentage-based targeting for feature flags and A/B testing variants through its segment and distribution settings, allowing gradual rollouts to specific user groups without code changes.

Question 4

How to secure Flagr APIs in production?

Accepted Answer

Flagr relies on standard HTTP security practices; you must implement authentication, authorization, and TLS externally, as it doesn't include built-in advanced security features like OAuth or role-based access control out-of-the-box.

Question 5

What databases does Flagr support for persistence?

Accepted Answer

Flagr uses SQL databases; based on typical setups, it supports PostgreSQL or MySQL, but you need to check the documentation for specific configuration details and migration steps.

Question 6

How to monitor Flagr performance and errors?

Accepted Answer

Flagr provides basic metrics via its APIs and benchmarks, but comprehensive monitoring requires integrating with external tools like Prometheus or custom logging, as it lacks native dashboards for real-time analytics.

Flagr

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