Securing PostgreSQL with SSL Encryption

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When implementing Patroni for PostgreSQL high availability, ensuring secure connections is paramount. One essential aspect is configuring SSL encryption to safeguard data transmission. Below is a step-by-step guide to configure SSL encryption for Patroni-managed PostgreSQL instances, along with detailed explanations at each stage.

Step 1: Patroni Configuration Update

patronictl -c /etc/patroni/patroni.yml edit-config

Adjust the patroni.yml configuration file to incorporate SSL encryption:

# force clients to use TLS v1.3 or newer

postgresql:
  parameters:
    ssl: true
    ssl_ca_file: /var/data/root.crt
    # (change requires restart)
    ssl_cert_file: /var/data/server.crt
    ssl_ciphers…