better host upstream support

backend/embed/migrations/20201013035839_initial_data.sql

@@ -215,8 +215,6 @@ server {
 
   # default location:
   location / {
-    proxy_http_version 1.1;
-
     {{#if Host.AccessListID}}
     # Authorization
     auth_basic            ""Authorization required"";
@@ -248,6 +246,7 @@ server {
     proxy_set_header X-Forwarded-Scheme $scheme;
     proxy_set_header X-Forwarded-Proto  $scheme;
     proxy_set_header X-Forwarded-For    $remote_addr;
+    proxy_http_version 1.1;
 
     {{#if Upstream.ID}}
     # upstream

backend/internal/api/handler/hosts.go

@@ -87,6 +87,11 @@ func CreateHost() func(http.ResponseWriter, *http.Request) {
 			return
 		}
 
+		if newHost.UpstreamID > 0 {
+			// nolint: errcheck, gosec
+			newHost.Expand([]string{"upstream"})
+		}
+
 		configureHost(newHost)
 
 		h.ResultResponseJSON(w, r, http.StatusOK, newHost)

backend/internal/entity/host/methods.go

@@ -38,6 +38,9 @@ func create(host *Model) (int, error) {
 		listen_interface,
 		domain_names,
 		upstream_id,
+		proxy_scheme,
+		proxy_host,
+		proxy_port,
 		certificate_id,
 		access_list_id,
 		ssl_forced,
@@ -62,6 +65,9 @@ func create(host *Model) (int, error) {
 		:listen_interface,
 		:domain_names,
 		:upstream_id,
+		:proxy_scheme,
+		:proxy_host,
+		:proxy_port,
 		:certificate_id,
 		:access_list_id,
 		:ssl_forced,
@@ -112,6 +118,9 @@ func update(host *Model) error {
 		listen_interface = :listen_interface,
 		domain_names = :domain_names,
 		upstream_id = :upstream_id,
+		proxy_scheme = :proxy_scheme,
+		proxy_host = :proxy_host,
+		proxy_port = :proxy_port,
 		certificate_id = :certificate_id,
 		access_list_id = :access_list_id,
 		ssl_forced = :ssl_forced,

backend/internal/entity/host/model.go

@@ -58,7 +58,7 @@ type Model struct {
 	Certificate   *certificate.Model   `json:"certificate,omitempty"`
 	NginxTemplate *nginxtemplate.Model `json:"nginx_template,omitempty"`
 	User          *user.Model          `json:"user,omitempty"`
-	Upstream      upstream.Model       `json:"upstream,omitempty"`
+	Upstream      *upstream.Model      `json:"upstream,omitempty"`
 }
 
 func (m *Model) getByQuery(query string, params []interface{}) error {
@@ -122,7 +122,7 @@ func (m *Model) Expand(items []string) error {
 	if m.UpstreamID > 0 {
 		var u upstream.Model
 		u, err = upstream.GetByID(m.UpstreamID)
-		m.Upstream = u
+		m.Upstream = &u
 	}
 
 	if util.SliceContainsItem(items, "user") && m.ID > 0 {
@@ -146,7 +146,7 @@ func (m *Model) Expand(items []string) error {
 	if util.SliceContainsItem(items, "upstream") && m.UpstreamID > 0 {
 		var ups upstream.Model
 		ups, err = upstream.GetByID(m.UpstreamID)
-		m.Upstream = ups
+		m.Upstream = &ups
 	}
 
 	return err
@@ -163,6 +163,9 @@ func (m *Model) GetTemplate() Template {
 		UserID:                m.UserID,
 		Type:                  m.Type,
 		NginxTemplateID:       m.NginxTemplateID,
+		ProxyScheme:           m.ProxyScheme,
+		ProxyHost:             m.ProxyHost,
+		ProxyPort:             m.ProxyPort,
 		ListenInterface:       m.ListenInterface,
 		DomainNames:           domainNames,
 		UpstreamID:            m.UpstreamID,
@@ -180,7 +183,6 @@ func (m *Model) GetTemplate() Template {
 		Status:                m.Status,
 		ErrorMessage:          m.ErrorMessage,
 		IsDisabled:            m.IsDisabled,
-		Upstream:              m.Upstream,
 	}
 
 	return t

backend/internal/entity/host/template.go

@@ -10,6 +10,9 @@ type Template struct {
 	UserID                int
 	Type                  string
 	NginxTemplateID       int
+	ProxyScheme           string
+	ProxyHost             string
+	ProxyPort             int
 	ListenInterface       string
 	DomainNames           []string
 	UpstreamID            int

backend/internal/nginx/control.go

@@ -30,6 +30,11 @@ func ConfigureHost(h host.Model) error {
 		certificateTemplate = h.Certificate.GetTemplate()
 	}
 
+	var ups upstream.Model
+	if h.Upstream != nil {
+		ups = *h.Upstream
+	}
+
 	data := TemplateData{
 		Certificate: certificateTemplate,
 		ConfDir:     fmt.Sprintf("%s/nginx/hosts", config.Configuration.DataFolder),
@@ -39,7 +44,7 @@ func ConfigureHost(h host.Model) error {
 		},
 		DataDir:  config.Configuration.DataFolder,
 		Host:     h.GetTemplate(),
-		Upstream: h.Upstream,
+		Upstream: ups,
 	}
 
 	removeHostFiles(h)