CreateHcloudClient creates a hcloud.Client using various environment variables to guide configuration.

CreateListener creates and binds the unix socket in location specified by the CSI_ENDPOINT environment variable.

CreateLogger prepares a logger according to LOG_LEVEL environment variable.

CreateMetrics prepares a metrics client pointing at METRICS_ENDPOINT environment variable (will fallback) It will start the metrics HTTP listener depending on the ENABLE_METRICS environment variable.

GetEnableProvidedByTopology parses the ENABLE_PROVIDED_BY_TOPOLOGY environment variable and returns false by default.

GetServerLocation retrieves the hcloud server the application is running on.