Flagops uses the golang templating syntax however it uses [{ and }] as deliminators. In order to use a feature flag as part of your templates you can use the special env template function.
In addition to the env template function the templates have access to all of the sprig template functions, as well as toYaml and fromYaml functions directly from helm.
By default using the env function with a key will lookup a feature flag with a given key and interpret any value as a string.
my_config_key: [{ env "my_feature_flag" }]There are a few special triggers for the key passed to the env function.
By adding the _enabled suffix to a key will lookup a feature flag with the _enabled suffix removed and the value interpreted as a boolean. Certain providers have the ability to enable and disable feature flags this state will be used as the value when using this syntax.
my_config_key: [{ env "my_feature_flag_enabled" }]
If the value of your feature flag is a valid json object then you can use the . syntax to access subkeys of a json object in your templates.
my_config_key: [{ env "my_feature_flag.sub_key" }]