For years, the standard answer for securing internal systems in Continuous Delivery pipelines was the bastion host. It was the fortress at the edge of your network, the choke point for SSH access, the approved gateway for deployments. But bastion hosts come with hidden costs: maintenance overhead, network bottlenecks, complex SSH key management, and blind spots in monitoring. They slow you down when the thing you want most is frictionless delivery.
Modern Continuous Delivery demands a better approach. You need direct, secure connections that can scale with your deployments without adding latency or operational drag. You need auditing built in, not bolted on. You need zero trust baked into your pipeline from the first commit to production.
Alternatives to bastion hosts now exist that eliminate single points of failure while improving both velocity and security. These solutions remove the need for permanent inbound ports or static gateways. They integrate identity-based access control with ephemeral credentials, ensuring that every deployment is authorized in real time. They strip away the SSH tunnel complexity and let your CI/CD runners connect directly to targets through hardened, temporary channels. The result: faster delivery, fewer moving parts, and no lingering open doors.