This Docker image for Redis is specifically tailored for deployment on Fly.io, incorporating features from the official Redis image while ensuring operation in LTS (Long-Term Support) mode. It uniquely facilitates the integration of Redis configuration settings directly from environment variables and includes the option to activate swap space on Fly.io.

The image recognizes and utilizes a set of environment variables for customization:

• REDIS_PORT: Specifies the port for TLS connections, with a default setting of 6379.
• REDIS_PASSWORD: Mandatory for setting the authentication password.
• EXTRA_REDIS_CONFIG: Allows the inclusion of additional Redis configuration settings. By default, no extra configurations are added.
• SWAP: Controls the activation of swap space, not enabled by default.
• SWAP_SIZE: Defines the size of the swap space, should it be enabled, with a default of 512M.