Implement M8: agent-side key generation with ECDSA P-256

Private keys never leave agent infrastructure. Agents generate ECDSA P-256
key pairs locally, store them with 0600 permissions, and submit only the CSR
(public key) to the control plane. New AwaitingCSR job state pauses
renewal/issuance jobs until the agent submits its CSR. Server-side keygen
retained behind CERTCTL_KEYGEN_MODE=server for demo/development.

Key changes:
- Dual keygen mode via CERTCTL_KEYGEN_MODE (agent default, server for demo)
- AwaitingCSR job state with CommonName/SANs in work response
- Agent ECDSA P-256 keygen, local key storage, CSR-only submission
- CompleteAgentCSRRenewal server-side flow for agent-submitted CSRs
- DeploymentRequest.KeyPEM for agent-provided keys during deployment
- Dockerfile.agent creates /var/lib/certctl/keys with correct ownership

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
shankar0123
2026-03-15 13:51:41 -04:00
parent 11a5ca6135
commit e2821c448a
15 changed files with 576 additions and 184 deletions
+8 -2
View File
@@ -102,10 +102,10 @@ func main() {
policyService := service.NewPolicyService(policyRepo, auditService)
certificateService := service.NewCertificateService(certificateRepo, policyService, auditService)
notificationService := service.NewNotificationService(notificationRepo, make(map[string]service.Notifier))
renewalService := service.NewRenewalService(certificateRepo, jobRepo, renewalPolicyRepo, auditService, notificationService, issuerRegistry)
renewalService := service.NewRenewalService(certificateRepo, jobRepo, renewalPolicyRepo, auditService, notificationService, issuerRegistry, cfg.Keygen.Mode)
deploymentService := service.NewDeploymentService(jobRepo, targetRepo, agentRepo, certificateRepo, auditService, notificationService)
jobService := service.NewJobService(jobRepo, renewalService, deploymentService, logger)
agentService := service.NewAgentService(agentRepo, certificateRepo, jobRepo, targetRepo, auditService, issuerRegistry)
agentService := service.NewAgentService(agentRepo, certificateRepo, jobRepo, targetRepo, auditService, issuerRegistry, renewalService)
issuerService := service.NewIssuerService(issuerRepo, auditService)
targetService := service.NewTargetService(targetRepo, auditService)
teamService := service.NewTeamService(teamRepo, auditService)
@@ -208,6 +208,12 @@ func main() {
logger.Info("authentication enabled", "type", cfg.Auth.Type)
}
if cfg.Keygen.Mode == "server" {
logger.Warn("server-side key generation enabled (CERTCTL_KEYGEN_MODE=server) — private keys touch control plane, demo only")
} else {
logger.Info("agent-side key generation enabled — private keys never leave agent infrastructure")
}
// Apply middleware to API router
apiHandler := middleware.Chain(apiRouter, middlewareStack...)