feat(config): make it so you can revert override of apps

Signed-off-by: Eric Bode <[email protected]>

subcommands/common_config.go

@@ -15,6 +15,7 @@ import (
 	"github.com/sirupsen/logrus"
 
 	"github.com/foundriesio/fioctl/client"
+	"github.com/foundriesio/fioctl/subcommands"
 )
 
 // Aktualizr puts all config files into a single lexographically sorted map.
@@ -235,6 +236,14 @@ func SetUpdatesConfig(opts *SetUpdatesConfigOptions, reportedTag string, reporte
 		fmt.Printf("Setting apps to [%s]\n", opts.UpdateApps)
 		sota.Set("pacman.docker_apps", opts.UpdateApps)
 		sota.Set("pacman.compose_apps", opts.UpdateApps)
+		if strings.TrimSpace(opts.UpdateApps) == "-" {
+			if sota.Has("pacman.docker_apps") {
+				subcommands.DieNotNil(sota.Delete("pacman.docker_apps"))
+			}
+			if sota.Has("pacman.compose_apps") {
+				subcommands.DieNotNil(sota.Delete("pacman.compose_apps"))
+			}
+		}
 		changed = true
 	}
 	if opts.UpdateTag != "" && configuredTag != opts.UpdateTag {

subcommands/config/updates.go

@@ -24,7 +24,15 @@ in a device group. When run without options, prints out the current configuratio
   fioctl config updates --group beta --apps shellhttpd
 
   # Set the docker apps and the tag for devices:
-  fioctl config updates --group beta --apps shellhttpd --tag master`,
+  fioctl config updates --group beta --apps shellhttpd --tag master
+
+  # Set the docker apps to none for devices, this will make the device run no apps:
+  fioctl config updates --apps ,
+
+  # Set the docker apps to inherit from their parent, meaning:
+  # If for a device apps are not set  - all apps are installed
+  # If for a device apps are set      - those apps are installed
+  fioctl config updates --apps -`,
 	}
 	cmd.AddCommand(configUpdatesCmd)
 	configUpdatesCmd.Flags().StringP("group", "g", "", "Device group to use")

subcommands/devices/config_updates.go

@@ -26,7 +26,16 @@ currently configured and reporting.`,
 
   # Set the docker apps and the tag:
   fioctl devices config updates <device> --apps shellhttpd --tag master
-`,
+
+  # Set the docker apps to none, meaning it will run no apps:
+  fioctl devices config updates <device> --apps ,
+
+  # Set the docker apps to inherit from their parent, meaning:
+  #   If for a device apps are not set - all apps are installed
+  #   If for a device apps are set*    - only those apps are installed
+  #
+  #   * It can be set at the individual device level, or at a device group level
+  fioctl devices config updates <device> --apps -`,
 	}
 	configCmd.AddCommand(configUpdatesCmd)
 	configUpdatesCmd.Flags().StringP("tag", "", "", "Target tag for device to follow")