How to Secure Microservices Without Traditional Firewall
summary
Claims that VPNs are replaceable by identity and proxy based controls using mTLS with per-service x.509 certificates, and shows a concrete stack of Envoy sidecar proxies and a control plane deployed on Kubernetes across AWS GCP and on premise. Describes automated certificate issuance and rotation, identity based allowlists instead of IP/VPN rules, and traffic features used in production like canary routing, circuit breakers and outlier detection. Reports enterprise deployments that eliminate cross‑cloud VPN complexity while keeping encryption and observability consistent.
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chapters (10)
- 0:00Introduction and overview
- 1:14Evolution of microservices security
- 3:22Challenges of distributed failures
- 6:36Service mesh as a solution
- 9:09Service mesh pillars and benefits
- 12:08Traffic management with service mesh
- 14:59Observability and telemetry
- 15:40Security with service mesh
- 18:51Replacing VPNs with certificates
- 21:44Closing remarks and call to action
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