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Golang and Vault: Building a secure microservice architecture
In modern application development, building a secure microservice architecture is crucial. With the popularity of microservice architecture, more and more services are running in different environments and communicating with each other, so protecting and managing sensitive data such as passwords, API keys and database credentials has become particularly important. This article will introduce how to use Golang and Vault to implement a secure microservice architecture.
Create the encryption backend:
$ vault secrets enable -path=secret kv
Add sensitive data:
$ vault kv put secret/myapp/api_key value=abc123
Now, our sensitive data has been stored in Vault and is encrypted and protected. The next step is to obtain and use this data in the Golang microservice code.
$ go get -u github.com/99designs/keyring
Next, we will write a simple Golang program to connect to Vault and obtain sensitive data:
package main import ( "fmt" "log" "github.com/99designs/keyring" ) func main() { vaultConfig := keyring.Config{ ServiceName: "myapp", URL: "http://localhost:8200", } keyring, err := keyring.Open(vaultConfig) if err != nil { log.Fatal(err) } item, err := keyring.Get("api_key") if err != nil { log.Fatal(err) } fmt.Println("API Key:", item.Data) }
In this example, we define the configuration and service name of Vault. After connecting to Vault, we use the keyring.Get method to obtain sensitive data named "api_key" from Vault. Finally, we print out the resulting API key.
$ go run main.go
If everything is OK, the output will be similar to the following:
API Key: abc123
This means that we successfully obtained the API key from Vault and used it in the Golang microservice .
Code sample reference: https://github.com/99designs/keyring
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