Merge pull request #2443 from thaJeztah/add_host_gateway_to_tests

Add "host-gateway" to tests for extra_hosts / --add-host

cli/command/service/update_test.go

@@ -358,15 +358,19 @@ func TestUpdateHosts(t *testing.T) {
 	flags := newUpdateCommand(nil).Flags()
 	flags.Set("host-add", "example.net:2.2.2.2")
 	flags.Set("host-add", "ipv6.net:2001:db8:abc8::1")
+	// adding the special "host-gateway" target should work
+	flags.Set("host-add", "host.docker.internal:host-gateway")
 	// remove with ipv6 should work
 	flags.Set("host-rm", "example.net:2001:db8:abc8::1")
 	// just hostname should work as well
 	flags.Set("host-rm", "example.net")
+	// removing the special "host-gateway" target should work
+	flags.Set("host-rm", "gateway.docker.internal:host-gateway")
 	// bad format error
 	assert.ErrorContains(t, flags.Set("host-add", "$example.com$"), `bad format for add-host: "$example.com$"`)
 
-	hosts := []string{"1.2.3.4 example.com", "4.3.2.1 example.org", "2001:db8:abc8::1 example.net"}
-	expected := []string{"1.2.3.4 example.com", "4.3.2.1 example.org", "2.2.2.2 example.net", "2001:db8:abc8::1 ipv6.net"}
+	hosts := []string{"1.2.3.4 example.com", "4.3.2.1 example.org", "2001:db8:abc8::1 example.net", "gateway.docker.internal:host-gateway"}
+	expected := []string{"1.2.3.4 example.com", "4.3.2.1 example.org", "2.2.2.2 example.net", "2001:db8:abc8::1 ipv6.net", "host-gateway host.docker.internal"}
 
 	err := updateHosts(flags, &hosts)
 	assert.NilError(t, err)

cli/compose/loader/full-example.yml

@@ -140,9 +140,11 @@ services:
     # extra_hosts:
     #   somehost: "162.242.195.82"
     #   otherhost: "50.31.209.229"
+    #   host.docker.internal: "host-gateway"
     extra_hosts:
       - "somehost:162.242.195.82"
       - "otherhost:50.31.209.229"
+      - "host.docker.internal:host-gateway"
 
     hostname: foo
 

cli/compose/loader/full-struct_test.go

@@ -144,6 +144,7 @@ func services(workingDir, homeDir string) []types.ServiceConfig {
 			ExtraHosts: []string{
 				"somehost:162.242.195.82",
 				"otherhost:50.31.209.229",
+				"host.docker.internal:host-gateway",
 			},
 			Extras: map[string]interface{}{
 				"x-bar": "baz",
@@ -626,6 +627,7 @@ services:
     extra_hosts:
     - somehost:162.242.195.82
     - otherhost:50.31.209.229
+    - host.docker.internal:host-gateway
     hostname: foo
     healthcheck:
       test:
@@ -1135,7 +1137,8 @@ func fullExampleJSON(workingDir string) string {
       ],
       "extra_hosts": [
         "somehost:162.242.195.82",
-        "otherhost:50.31.209.229"
+        "otherhost:50.31.209.229",
+        "host.docker.internal:host-gateway"
       ],
       "hostname": "foo",
       "healthcheck": {

cli/compose/loader/loader_test.go

@@ -1276,11 +1276,13 @@ services:
     extra_hosts:
       "zulu": "162.242.195.82"
       "alpha": "50.31.209.229"
+      "host.docker.internal": "host-gateway"
 `)
 	assert.NilError(t, err)
 
 	expected := types.HostsList{
 		"alpha:50.31.209.229",
+		"host.docker.internal:host-gateway",
 		"zulu:162.242.195.82",
 	}
 
@@ -1298,6 +1300,7 @@ services:
       - "zulu:162.242.195.82"
       - "alpha:50.31.209.229"
       - "zulu:ff02::1"
+      - "host.docker.internal:host-gateway"
 `)
 	assert.NilError(t, err)
 
@@ -1305,6 +1308,7 @@ services:
 		"zulu:162.242.195.82",
 		"alpha:50.31.209.229",
 		"zulu:ff02::1",
+		"host.docker.internal:host-gateway",
 	}
 
 	assert.Assert(t, is.Len(config.Services, 1))

opts/hosts_test.go

@@ -154,6 +154,7 @@ func TestValidateExtraHosts(t *testing.T) {
 		`thathost:10.0.2.1`,
 		`anipv6host:2003:ab34:e::1`,
 		`ipv6local:::1`,
+		`host.docker.internal:host-gateway`,
 	}
 
 	invalid := map[string]string{