docker ECR login (go-aws-sdk)

app/modules/docker/login.go

@@ -0,0 +1,40 @@
+package docker
+
+import (
+	b64 "encoding/base64"
+	"fmt"
+	"ledo/app/modules/aws_ledo"
+	"ledo/app/modules/context"
+	"net/url"
+	"os"
+)
+
+func trimLeftChars(s string, n int) string {
+    m := 0
+    for i := range s {
+        if m >= n {
+            return s[i:]
+        }
+        m++
+    }
+    return s[:0]
+}
+
+func DockerEcrLogin(ctx *context.LedoContext) error {
+	ecr, err := aws_ledo.EcrLogin()
+	if err != nil {
+		fmt.Println("Ecr login error: %s", err)
+		os.Exit(1)
+	}
+	password := *ecr.AuthorizationData[0].AuthorizationToken
+	ecrUrl := *ecr.AuthorizationData[0].ProxyEndpoint
+	sDec, _ := b64.StdEncoding.DecodeString(password)
+	registryAddr, err := url.Parse(ecrUrl)
+	if err != nil {
+		fmt.Printf("Ecr endpoint addr parse error: %s", err)
+		os.Exit(1)
+	}
+	ctx.ExecCmdSilent("docker", []string{"login", "-u", "AWS", "-p", string(trimLeftChars(string(sDec), 4)), registryAddr.Host})
+
+	return nil
+}