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Image TLS Endpoints can be created using the aptible endpoints:tls:create command.

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Traffic

TLS Endpoints terminate TLS traffic and transfer it as plain TCP to your app.

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Container Ports

TLS Endpoints are configured similarly to TCP Endpoints. The Endpoint will listen for TLS traffic on exposed ports and transfer it as TCP traffic to your app over the same port. For example, if your Image exposes port 123, the Endpoint will listen for TLS traffic on port 123, and forward it as TCP traffic to your app Containers on port 123.
Unlike HTTP(S) Endpoints, TLS Endpoints currently do not provide Zero-Downtime Deployment. If you require Zero-Downtime Deployments for a TLS app, you’d need to architect it yourself, e.g. at the DNS level.

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Idle Timeout

TLS Endpoints enforce an idle timeout on connections. By default, the inactivity timeout is 60 seconds. You can configure a different timeout per endpoint:
In Terraform, set idle_timeout on the aptible_endpoint resource (see Endpoint Settings).
Migrating from environment variables: IDLE_TIMEOUT was previously set as an app configuration variable. Once your endpoints are configured, unset it from your app using aptible config:unset

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SSL / TLS Settings

Aptible offers a few ways to configure the protocols used by TLS endpoints for TLS termination.

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SSL Protocols Override

The SSL Protocols Override setting lets you customize the SSL/TLS protocols allowed on your Endpoint.
  • For TLS Endpoints: you can choose from these combinations:
    • TLSv1 TLSv1.1 TLSv1.2 (default)
    • TLSv1.1 TLSv1.2
    • TLSv1.2
    • TLSv1.3

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SSL Ciphers Override

This setting lets you customize the SSL ciphers used by your Endpoint. The format is a string accepted by Nginx for its ssl_ciphers directive. Pay very close attention to the required format, as a bad value will prevent the proxies from starting.

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Disable Weak Cipher Suites

Enabling this setting causes your Endpoint to stop accepting traffic over the SSLv3 protocol or using the RC4 cipher. We strongly recommend enabling this on all TLS Endpoints.

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Examples

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Set Idle Timeout

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Set SSL Protocols Override

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Disable Weak Cipher Suites

In Terraform, set ssl_protocols_override, ssl_ciphers_override, and disable_weak_cipher_suites on the aptible_endpoint resource (see Endpoint Settings).
Migrating from environment variables: SSL_PROTOCOLS_OVERRIDE, SSL_CIPHERS_OVERRIDE, and DISABLE_WEAK_CIPHER_SUITES were previously set as app configuration variables. Once your endpoints are configured, unset them from your app using aptible config:unset