Add condition to define stack capability requirements

spec/changelog.yml

@@ -2,11 +2,11 @@
 ## This file documents changes in the package specification. It is NOT a package specification file.
 ## Newer entries go at the bottom of each in-development version.
 ##
-- version: 2.9.1-next
+- version: 2.10.0-next
   changes:
-  - description: Prepare for next version
+  - description: Packages can define required stack capabilities
     type: enhancement
-    link: https://github.com/elastic/package-spec/pull/547
+    link: https://github.com/elastic/package-spec/pull/561
 - version: 2.9.0
   changes:
   - description: Update minimum kibana version required for runtime fields

spec/integration/manifest.spec.yml

@@ -101,6 +101,22 @@ spec:
               default: basic
               examples:
               - basic
+            capabilities:
+              description: |-
+                Stack features that are required by the package to work properly.
+                The package should not be used in deployments without the indicated features.
+                Packages that don't indicate any capability condition can be used on any deployment.
+              type: array
+              uniqueItems: true
+              items:
+                type: string
+                enum:
+                  - apm
+                  - enterprise_search
+                  - observability
+                  - security
+                  - serverless_search
+                  - uptime
         kibana:
           description: Kibana conditions
           type: object
@@ -379,6 +395,10 @@ spec:
 
 # JSON patches for newer versions should be placed on top
 versions:
+  - before: 2.10.0
+    patch:
+      - op: remove
+        path: "/definitions/conditions/properties/elastic/properties/capabilities"
   - before: 2.3.0
     patch:
       - op: add

test/packages/good_input/manifest.yml

@@ -1,4 +1,4 @@
-format_version: 2.9.0
+format_version: 2.10.0
 name: good_input
 title: good_input
 description: >-
@@ -9,6 +9,7 @@ source:
   license: "Apache-2.0"
 conditions:
   elastic.subscription: basic
+  elastic.capabilities: [observability]
   kibana:
     version: "^8.10.0"
 categories:

test/packages/good_v2/manifest.yml

@@ -1,4 +1,4 @@
-format_version: 2.9.0
+format_version: 2.10.0
 name: good_v2
 title: Good package
 description: This package is good for format version 2
@@ -9,6 +9,8 @@ source:
 conditions:
   kibana.version: '^8.10.0'
   elastic.subscription: 'basic'
+  elastic.capabilities:
+    - observability
 vars:
   - name: package_password
     type: password