image: T4516: Added system image tools

This commit adds the whole set of system image tools written from the scratch in
Python that allows performing all the operations on images:

* check information
* perform installation and deletion
* versions management

Also, it contains a new service that will update the GRUB menu and keep tracking
its version in the future.

WARNING: The commit contains non-reversible changes. Because of boot menu
changes, it will not be possible to manage images from older VyOS versions after
an update.

1 files changed, 52 insertions, 0 deletions

diff --git a/data/templates/grub/grub_options.j2 b/data/templates/grub/grub_options.j2
new file mode 100644
index 000000000..c8a1472e1
--- /dev/null
+++ b/data/templates/grub/grub_options.j2
@@ -0,0 +1,52 @@
+submenu "Boot options" {
+    submenu "Select boot mode" {
+        menuentry "Normal" {
+            set bootmode="normal"
+            export bootmode
+            configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+        }
+        menuentry "Password reset" {
+            set bootmode="pw_reset"
+            export bootmode
+            configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+        }
+        menuentry "System recovery" {
+            set bootmode="recovery"
+            export bootmode
+            configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+        }
+        menuentry "Load the whole root filesystem to RAM" {
+            set boot_toram="yes"
+            export boot_toram
+            configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+        }
+    }
+    submenu "Select console type" {
+        menuentry "tty (graphical)" {
+            set console_type="tty"
+            export console_type
+            configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+        }
+        menuentry "ttyS (serial)" {
+            set console_type="ttyS"
+            export console_type
+            setup_serial
+            configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+        }
+        menuentry "ttyUSB (USB serial)" {
+            set console_type="ttyUSB"
+            export console_type
+            setup_serial
+            configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+        }
+    }
+    menuentry "Enter console number" {
+        read console_num
+        export console_num
+        setup_serial
+        configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg
+    }
+    menuentry "Current: boot mode: ${bootmode}, console: ${console_type}${console_num}" {
+        echo
+    }
+}