Why does the genesys cloud edge provision command fails with a 400 error during our nightly CI pipeline? This started after the last platform update. The environment is a BYOC setup using AWS Transit Gateway.
The terraform apply succeeds, but the CLI validation step rejects the edge configuration. The error points to a mismatch in the certificate chain.
Error: Failed to validate edge certificate
Code: 400
Message: The provided leaf certificate does not match the intermediate CA in the bundle.
We are using the standard Let’s Encrypt certs. The bundle includes the leaf and the R3 intermediate. The ca_bundle parameter in the HCL is correct.
hcl
resource "genesyscloud_edge_byoc" "main" {
name = "prod-edge-syd"
ca_bundle = file("certs/fullchain.pem")
private_key = file("certs/privkey.pem")
}
The fullchain.pem has the leaf first, then the intermediate. Genesys docs say this is the required order. Yet the API rejects it.
Is there a specific format expected for the PEM file? Or is this a bug in the current CLI version 1.4.2? The same certs work fine on the staging environment. Staging uses an older API endpoint version.
Any help appreciated. Timezone is AEST, so logs from the last deploy are available.
Yep, this is a known issue when the CI pipeline hits the provisioning endpoint during peak load windows. The 400 error often masks a backend capacity throttle rather than a genuine certificate mismatch. Genesys Cloud’s BYOC validation service has strict concurrent request limits, and if the Terraform apply triggers multiple parallel validations, the platform drops the request with a generic bad request code. The certificate chain is likely fine, but the API endpoint is saturated.
To fix this, isolate the certificate validation step from the bulk provision command. Use a sequential JMeter thread group to verify the edge config before running the full genesys cloud edge provision. Add a 2-second delay between calls to avoid hitting the WebSocket connection limits on the provisioning service.
# Step 1: Validate cert chain separately
genesys cloud edge validate --cert chain.pem
# Step 2: Wait for throttle reset
sleep 2
# Step 3: Provision edge
genesys cloud edge provision --config edge-config.json
Also, check if the CI runner is in the Asia/Singapore region. Latency spikes from other regions can cause timeout-related 400 errors on the BYOC endpoints. If the issue persists, reduce the batch size of the Terraform apply to one edge at a time. The platform API chokes on large concurrent deployments, especially during nightly maintenance windows. This approach stabilizes the pipeline and prevents false positives on certificate errors.
Have you tried bypassing the CLI validation and pushing the certificate directly via the Genesys Cloud API to isolate whether the issue is client-side serialization or server-side rejection? The BYOC provisioning endpoint often fails on intermediate CA ordering that the CLI parser doesn’t flag explicitly.
This looks like a serialization issue within the CLI tool rather than a backend capacity problem, especially given the specific mention of certificate chain mismatches in the error payload. When building AppFoundry integrations that interact with BYOC endpoints, we often encounter scenarios where the CLI parser expects a specific PEM formatting or intermediate CA ordering that differs from what Terraform generates. The suggestion above about bypassing CLI validation is sound, but before doing that, verify the exact structure of the certificate string being passed. The Genesys Cloud API requires the full chain to be concatenated in a specific order: leaf certificate first, followed by intermediates, and finally the root CA if required. If the CLI is stripping newlines or encoding the certificate as base64 instead of plain PEM, the validation service will reject it with a 400 error. Try exporting the certificate from your Terraform state file and inspecting it manually. Ensure there are no hidden characters or incorrect line endings. Additionally, check if the certificate’s Common Name matches the FQDN of the BYOC edge exactly, including any subdomains. If the issue persists, use the /api/v2/edge/byoc/edges endpoint directly with a curl request to isolate whether the problem is with the CLI or the API payload. Include the raw certificate string in the request body and observe the response. This approach usually reveals if the issue is client-side formatting or server-side validation logic.