Deploy and Troubleshoot SSL for AIRec HTTPS

Scenario

Developers enable HTTPS for AIRec recommendation endpoints to secure API traffic and comply with enterprise security policies. After provisioning a certificate via Alibaba Cloud CAS and mapping it to AIRec, they frequently encounter browser warnings like NET::ERR_CERT_AUTHORITY_INVALID or validation failures caused by chain misconfigurations or domain mismatches. This guide details the deployment workflow and targeted troubleshooting steps.

Integration steps

1. Provision Certificate in CAS: Request or upload your SSL cert via the CAS OpenAPI.

POST https://cas.aliyuncs.com/?Action=CreateCertificate&DomainName=rec.example.com&CertType=DV

2. Deploy to Ingress Layer: Push the certificate to the SLB/CDN fronting AIRec.

POST https://cas.aliyuncs.com/?Action=DeployCertificate&CertId=cert-8a9b2c&TargetType=SLB&InstanceId=lb-ai-rec-01

3. Prepare AIRec Mapping File: Populate certificate_info.xlsx with exact columns: Domain, CertificateID, Protocol (HTTPS), Port (443). Ensure FQDN matches the AIRec custom domain exactly.
4. Bind Certificate to AIRec: Apply the mapping via AIRec CLI.

airec-cli domain update --instance-id ai-rec-prod --config-file certificate_info.xlsx --region cn-hangzhou

5. Verify Deployment Status: Confirm CAS deployment and AIRec listener activation.

GET https://cas.aliyuncs.com/?Action=DescribeCertificateStatus&CertId=cert-8a9b2c → expect Deployed. Test curl -I https://rec.example.com/api/v1/recommend

6. Run CAS Diagnostics: If Chrome shows ERR_CERT_AUTHORITY_INVALID, trigger chain validation.

POST https://cas.aliyuncs.com/?Action=DiagnoseCertificate&CertId=cert-8a9b2c&CheckType=chain_validation&Client=chrome

7. Remediate & Redeploy: If diagnostics report missing intermediates, upload the full PEM bundle and redeploy.

PUT https://cas.aliyuncs.com/?Action=UpdateCertificate&CertId=cert-8a9b2c&PEMChain=<server+intermediate+root> → repeat Step 2.

Architecture

CAS acts as the centralized certificate lifecycle manager, issuing, storing, and pushing TLS assets to the network ingress layer (SLB/API Gateway). AIRec consumes the deployed certificate by parsing certificate_info.xlsx, which binds the custom domain to the HTTPS listener. Client traffic terminates TLS at the CAS-managed gateway, which forwards decrypted requests to the AIRec backend. Troubleshooting flows from browser diagnostics back through CAS validation APIs to verify chain integrity, domain alignment, and listener propagation.

Prerequisites

• Active AIRec instance with a verified custom domain
• Alibaba Cloud CAS account with domain ownership validated
• Valid SSL certificate (PEM format) or CAS-managed DV/OV cert
• certificate_info.xlsx template from AIRec console
• RAM role with AliyunCASFullAccess and AliyunAIRecFullAccess

Common pitfalls

• Incomplete certificate chain: Uploading only the leaf cert triggers ERR_CERT_AUTHORITY_INVALID. Always bundle server + intermediate certificates in the PEM file.
• Domain mismatch in mapping: certificate_info.xlsx requires exact FQDN matches. Wildcards or trailing slashes cause AIRec to reject the binding silently.
• CAS deployment latency: Pushing to SLB/CDN takes 1–3 minutes. Testing immediately returns stale HTTP responses or old certs.
• Browser HSTS caching: Previous HTTP visits force HTTPS with cached invalid certs. Clear state via chrome://net-internals/#hsts before retesting.
• Missing intermediate CA in CAS: If validation fails during troubleshooting, ensure the issuing CA’s root is publicly trusted or explicitly uploaded to CAS.

Typical questions

• deploy ssl certificate to airec
• airec https not working
• certificate error after deployment
• browser warning on airec domain
• 证书部署到AIRec后报错
• AIRec配置HTTPS失败
• SSL证书不受信任
• verify ssl installation airec