feat: Allow restarting services from entrypoint

entrypoint.sh

@@ -1,18 +1,20 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
 set -e
+set -o pipefail
+
 source "${SALT_RUNTIME_DIR}/functions.sh"
 
 [[ ${DEBUG} == true ]] && set -x
 
 case ${1} in
-  app:start|app:init|app:gen-signed-keys)
+  app:start|app:gen-signed-keys)
 
     initialize_system
 
     case ${1} in
       app:start)
-        echo "Starting salt-master..."
+        echo "Starting supervisord ..."
         exec /usr/bin/supervisord -nc /etc/supervisor/supervisord.conf
         ;;
       app:gen-signed-keys)
@@ -21,9 +23,23 @@ case ${1} in
         ;;
     esac
     ;;
+  app:restart)
+    shift 1
+    case ${1} in
+      salt-master|salt-api)
+        echo "Restarting ${1} service ..."
+        exec pkill ${1}
+        ;;
+      *)
+        log_error "Unable to restart ${1} serice. Service is unknown"
+        exit 1
+        ;;
+    esac
+    ;;
   app:help)
     echo "Available options:"
-    echo "  app:start                         - Start salt-master service. (default)"
+    echo "  app:start                         - Start configured services. (default)"
+    echo "  app:restart                       - Restart the specified service on a running container. Choices: salt-master, salt-api"
     echo "  app:gen-signed-keys <key_name>    - Create a master_sign key pair and its signature inside ${SALT_KEYS_DIR}/generated/"
     echo "  app:help                          - Displays this help."
     echo "  [command]                         - Execute the specified command, eg. bash."