Host header update

extras/dgoss/README.md

@@ -72,7 +72,7 @@ The following environment variables can be set to change the behavior of dgoss.
 ##### GOSS_PATH
 Location of the goss binary to use. (Default: `$(which goss)`)
 
-#### GOSS_FILE
+#####  GOSS_FILE
 Name of the goss file to use. (Default: `goss.yaml`)
 
 ##### GOSS_OPTS
@@ -100,4 +100,5 @@ Strategy used for copying goss files into the docker container. If set to `'moun
 (Default `'mount'`)
 
 ##### CONTAINER_LOG_OUTPUT
+**NOTE:** this only works when `GOSS_FILES_STRATEGY` is set to `'mount'`.
 Location of the file that contains tested container logs. Logs are retained only if the variable is set to a non-empty string. (Default `''`)

integration-tests/goss/goss-shared.yaml

@@ -180,6 +180,14 @@ interface:
       contain-element:
         have-prefix: '172.17'
 http:
+  https://httpbin.org/headers:
+    status: 200
+    allow-insecure: false
+    timeout: 10000
+    request-headers:
+      - "Host: example.com"
+    headers: ["Content-Type: application/json"]
+    body: ['"Host": "example.com"']
   https://httpbin.org/headers:
     status: 200
     allow-insecure: false

system/http.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"os"
 	"strings"
 	"time"
 
@@ -40,6 +41,7 @@ func NewDefHTTP(httpStr string, system *System, config util.Config) HTTP {
 		str := strings.SplitN(r, ": ", 2)
 		headers.Add(str[0], str[1])
 	}
+	fmt.Printf("\nheaders: %v\n\n", headers)
 	return &DefHTTP{
 		http:              httpStr,
 		allowInsecure:     config.AllowInsecure,
@@ -86,6 +88,14 @@ func (u *DefHTTP) setup() error {
 		return u.err
 	}
 	req.Header = u.RequestHeader.Clone()
+
+	if host, ok := u.RequestHeader["Host"]; ok {
+		if len(host) > 1 {
+			fmt.Fprintf(os.Stderr, "multiple host headers detected, using first: (%v)", host[0])
+		}
+		req.Host = host[0]
+	}
+
 	if u.Username != "" || u.Password != "" {
 		req.SetBasicAuth(u.Username, u.Password)
 	}