feat: load .env if present (#20)

this makes secret management easier when dealing with containers
and not wanting to pass them as cli params

.gitignore

@@ -5,3 +5,4 @@ p2p-forge
 p2p-forge-certs/
 badger.libp2p-direct-challenges/
 registration_libp2p_direct-certs/
+.env

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/ipfs/go-ds-badger4 v0.1.5
 	github.com/ipfs/go-ds-dynamodb v0.2.0
 	github.com/ipfs/go-log/v2 v2.5.1
+	github.com/joho/godotenv v1.5.1
 	github.com/letsencrypt/pebble/v2 v2.6.0
 	github.com/libp2p/go-libp2p v0.37.2
 	github.com/mholt/acmez/v2 v2.0.3

go.sum

@@ -285,6 +285,8 @@ github.com/jmespath/go-jmespath v0.4.0 h1:BEgLn5cpjn8UN1mAw4NjwDrS35OdebyEtFe+9Y
 github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
 github.com/jmespath/go-jmespath/internal/testify v1.5.1 h1:shLQSRRSCCPj3f2gpwzGwWFoC7ycTf1rcQZHOlsJ6N8=
 github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=

main.go

@@ -6,6 +6,7 @@ import (
 	_ "github.com/coredns/coredns/core/plugin" // Load all managed plugins in github.com/coredns/coredns.
 	_ "github.com/ipshipyard/p2p-forge/acme"
 	_ "github.com/ipshipyard/p2p-forge/ipparser"
+	"github.com/joho/godotenv"
 
 	"github.com/coredns/coredns/core/dnsserver"
 	"github.com/coredns/coredns/coremain"
@@ -38,5 +39,9 @@ func init() {
 
 func main() {
 	fmt.Printf("%s %s\n", name, version) // always print version
+	err := godotenv.Load()
+	if err == nil {
+		fmt.Println(".env found and loaded")
+	}
 	coremain.Run()
 }