feat: add parallelism to certain proxy commands

Closes #4392

plugins/proxy/proxy.go

@@ -3,9 +3,14 @@ package proxy
 import (
 	"fmt"
 
+	"github.com/dokku/dokku/plugins/common"
 	"github.com/dokku/dokku/plugins/config"
 )
 
+// RunInSerial is the default value for whether to run a command in parallel or not
+// and defaults to -1 (false)
+const RunInSerial = 0
+
 // PortMap is a struct that contains a scheme:host-port:container-port mapping
 type PortMap struct {
 	ContainerPort int
@@ -22,6 +27,46 @@ func (p PortMap) AllowsPersistence() bool {
 	return p.Scheme == "__internal__"
 }
 
+// BuildConfig rebuilds the proxy config for the specified app
+func BuildConfig(appName string) error {
+	return common.PlugnTrigger("proxy-build-config", []string{appName}...)
+}
+
+// Disable disables proxy implementations for the specified app
+func Disable(appName string) error {
+	if !IsAppProxyEnabled(appName) {
+		common.LogInfo1("Proxy is already disable for app")
+		return nil
+	}
+
+	common.LogInfo1("Disabling proxy for app")
+	entries := map[string]string{
+		"DOKKU_DISABLE_PROXY": "1",
+	}
+
+	if err := config.SetMany(appName, entries, false); err != nil {
+		return err
+	}
+
+	return common.PlugnTrigger("proxy-disable", []string{appName}...)
+}
+
+// Enable enables proxy implementations for the specified app
+func Enable(appName string) error {
+	if IsAppProxyEnabled(appName) {
+		common.LogInfo1("Proxy is already enabled for app")
+		return nil
+	}
+
+	common.LogInfo1("Enabling proxy for app")
+	keys := []string{"DOKKU_DISABLE_PROXY"}
+	if err := config.UnsetMany(appName, keys, false); err != nil {
+		return err
+	}
+
+	return common.PlugnTrigger("proxy-enable", []string{appName}...)
+}
+
 // IsAppProxyEnabled returns true if proxy is enabled; otherwise return false
 func IsAppProxyEnabled(appName string) bool {
 	proxyEnabled := true