Fix unsecured Argo CD communications

Argo CD 3.5 introduces native mutual TLS (mTLS) support for securing internal component communications, eliminating the need for service mesh sidecars or custom certificate management scripts. The post explains why mTLS is superior to one-way TLS in zero-trust environments, details the pre-3.5 workarounds (Istio/Linkerd sidecars, cert-manager, HashiCorp Vault), and provides a step-by-step setup guide. It covers both shared-certificate and per-component certificate configurations, migration patterns from existing setups, and real-world use cases including compliance with SOC 2, HIPAA, and PCI-DSS frameworks.

Source: https://octopus.com/blog/mtls-support-argocd. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.