pub const ENV_HOST_ALIAS: &str = "MSB_HOST_ALIAS";Expand description
Environment variable carrying the DNS name the guest uses to reach
the sandbox host (Docker’s host.docker.internal equivalent).
Legacy environment spelling for the host alias now carried in the typed
guest bootstrap. Agentd writes the mapping into /etc/hosts. The value the
network stack emits is fixed at host.microsandbox.internal.