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shankar0123
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Follow-up to v2.0.47 (HTTPS-Everywhere). The Phase-3 self-signed bootstrap sidecar shipped an ed25519 server cert. Apple's TLS stack — Safari Network Framework and the macOS-bundled LibreSSL 3.3.6 /usr/bin/curl — does not advertise ed25519 in the ClientHello signature_algorithms extension for server certs, so the handshake fails with the server-side log line: tls: peer doesn't support any of the certificate's signature algorithms Homebrew OpenSSL 3.x, Chrome, Firefox, and Linux curl all accept ed25519 server certs fine. Apple is the outlier. Rather than gate the demo stack behind "install Homebrew OpenSSL first," swap the bootstrap algorithm to ECDSA-P256 with SHA-256 — universally supported, including on the Apple stack. Changes - deploy/docker-compose.yml: certctl-tls-init openssl invocation swapped to `-newkey ec -pkeyopt ec_paramgen_curve:P-256 -nodes`; header comment + echo line updated; multi-line rationale paragraph added. - deploy/docker-compose.test.yml: same openssl swap + echo update for the test harness sidecar that writes to the bind-mounted ./test/certs directory the Go integration_test.go pins via CERTCTL_TEST_CA_BUNDLE. - docs/tls.md: Pattern 1 description + code block updated; "Why ECDSA-P256 and not ed25519" rationale paragraph added covering pre-v2.0.48 history, the Apple diagnosis, accepting clients, and the operator migration command. Patterns 2 (existing Secret) and 3 (cert-manager) explicitly called out as unaffected. - docs/upgrade-to-tls.md: docker-compose procedure sentence updated with cross-reference to tls.md Pattern 1. - docs/test-env.md: "Get the CA bundle for curl" sentence updated. Migration Existing demo installs must tear the `certs` named volume down to pick up the new algorithm: docker compose -f deploy/docker-compose.yml down -v docker compose -f deploy/docker-compose.yml up -d --build Not touched - cmd/server/tls.go: algorithm-agnostic. TLS 1.3 min version with [X25519, P-256] curve preferences for key exchange is orthogonal to the server cert's signature algorithm. No Go code change needed. - Helm chart: Patterns 2 and 3 operators supply their own cert; this patch does not affect them. - Unrelated ed25519 uses (agent key algorithm detection, profile algorithm options, SSH key path examples, tlsprobe key metadata, cloud discovery key-algo display): all orthogonal to the server TLS bootstrap cert. Incidental cleanup - .gitignore: dropped dangling `strategy.md` entry (file doesn't exist in repo; entry was cruft).