align json schema with spec

cmds/ocm/commands/ocmcmds/common/resources.go

@@ -8,13 +8,13 @@ import (
 	"encoding/json"
 	"fmt"
 
-	_ "github.com/open-component-model/ocm/cmds/ocm/commands/ocmcmds/common/inputs/types"
-
 	"github.com/mandelsoft/vfs/pkg/vfs"
 	"github.com/spf13/pflag"
 	"golang.org/x/text/cases"
 	"golang.org/x/text/language"
 
+	_ "github.com/open-component-model/ocm/cmds/ocm/commands/ocmcmds/common/inputs/types"
+
 	"github.com/open-component-model/ocm/cmds/ocm/commands/ocmcmds/common/addhdlrs"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/ocmcmds/common/inputs"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/ocmcmds/common/options/dryrunoption"

docs/ocm/model.md

@@ -119,6 +119,7 @@ A component descriptor describes:
 - a history of [Repository Contexts](#repository-contexts) describing
   former repository locations of the component version along a transportation
   chain
+- an optional creation timestamp (RFC3339) rounded to seconds.
 - a set of [Labels](#labels) to assign arbitrary kinds of information to the
   component version, which is not formally defined by the Open Component Model
 - an optional set of [Sources](#sources), that were used to generate the 

hack/Makefile

@@ -59,6 +59,10 @@ go-bindata:
 $(GOPATH)/bin/goimports:
 	go install -v golang.org/x/tools/cmd/goimports@latest
 
+Linux_jq:
+	$(info -> jq is missing)
+	$(info -  sudo apt-get install jq / sudo dnf install jq / sudo zypper install jq / sudo pacman -S jq)
+
 Darwin_sed: Darwin
 	$(info -> GNU sed is missing)
 	$(info -  brew install gnu-sed)

resources/component-descriptor-ocm-v3-schema.yaml

@@ -37,7 +37,7 @@ definitions:
       value: {}
       version:
         pattern: '^v[0-9]+$'
-      signature:
+      signing:
         type: 'boolean'
     additionalProperties: false
 

resources/component-descriptor-v2-schema.yaml

@@ -1,6 +1,6 @@
 $id: 'https://gardener.cloud/schemas/component-descriptor-v2'
 $schema: 'https://json-schema.org/draft/2020-12/schema'
-description: 'Gardener Component Descriptor v2 schema'
+description: 'Open Component Model v2 schema'
 definitions:
   meta:
     type: 'object'
@@ -22,7 +22,7 @@ definitions:
       value: {}
       version:
         pattern: '^v[0-9]+$'
-      signature:
+      signing:
         type: 'boolean'
 
   componentName: