This image started as phpmyadmin with forcing ssl on the servers but instead now allows all configuration to be changed via environment variable
Every environment variable starting with pma. with have its values added to the configuration
Example: pma.Servers.0.ssl=true will enable ssl for the first(and default) server.
Environment variable values are always strings. Thus the following string are converted to special php values
true- booleantruefalse- booleanfalse