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23 lines
577 B
Go
23 lines
577 B
Go
package common
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import (
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"flag"
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"os"
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)
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// For now just assume all values source from flags are strings
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var (
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BrokerHost = flag.String("host", GetenvDefault("RUN_MQTT_HOST", "localhost"), "Hostname or IP address to an MQTT broker")
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BrokerPort = flag.String("port", GetenvDefault("RUN_MQTT_PORT", "1883"), "Port to an MQTT broker")
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)
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// GetenvDefault retrieves an environment variable if set, or a provided default
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func GetenvDefault(key string, defaultValue string) string {
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val, exists := os.LookupEnv(key)
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if exists {
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return val
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} else {
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return defaultValue
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}
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}
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