I want to create an image in docker of a Golang Application. I compiled the application and created the image over it, and it's working as expected.
However, that application needs certains parameters: Database name, user, ip of the database server, and so on...
So, I know that in docker I can send enviroment variables to the container using the flag -e
so, my question is:
在Docker容器的Go app缓存环境变量中
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- dpwgzi7987 2018-04-02 19:22关注
You can use https://golang.org/pkg/os/#Getenv or https://golang.org/pkg/os/#LookupEnv to get values from the enviroment variables. I prefer to use os.LookupEnv since I get a boolean saying that variable has a value and then I have my own method to have a default value.
func getEnv(key string, defaultValue string) string { if value, ok := os.LookupEnv(key); ok { return value } return defaultValue }
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