Add input groups support

CHANGELOG.md

@@ -12,6 +12,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+* Add input groups support. [#685] (https://github.com/elastic/package-registry/pull/685)
+
 ### Deprecated
 
 ### Known Issues

README.md

@@ -18,14 +18,19 @@ The `/search` API endpoint has few additional query parameters. More might be ad
   a package requires 7.4, the package will not be returned or an older compatible package will be shown.
   By default this endpoint always returns only the newest compatible package.
 * category: Filters the package by the given category. Available categories can be seend when going to `/categories` endpoint.
-* package: Filters by a specific package name, for example `mysql`. Returns the most recent version. 
+* package: Filters by a specific package name, for example `mysql`. Returns the most recent version.
 * internal: This can be set to true, to also list internal packages. This is set to `false` by default.
 * all: This can be set to true to list all package versions. This is set to `false` by default.
 * experimental: This can be set to true to list packages considered to be experimental. This is set to `false` by default.
 
 The different query parameters above can be combined, so `?package=mysql&kibana=7.3.0` will return all mysql package versions
 which are compatible with `7.3.0`.
 
+The `/categories` API endpoint has two additional query parameters.
+
+* experimental: This can be set to true to list categories from experimental packages. This is set to `false` by default.
+* include_policy_templates: This can be set to true to include categories from policy templates. This is set to `false` by default.
+
 ## Package structure
 
 The structure of each package is standardised. It looks as following:
@@ -196,4 +201,4 @@ CI automatically creates a new Docker image which will be available under `docke
 After the new registry Docker image is available, update the following projects that consume it:
 - Integrations: Update the version of the Package Registry Docker image as shown in this [sample PR](https://github.com/elastic/integrations/pull/581).
 - Package Storage: Follow the [documentation](https://github.com/elastic/package-storage#update-package-registry-for-a-distribution) on how to update the distributions.
-- Kibana: Do this only after all Package Storage distributions have been updated and released as new Docker images. Update the version of the Package Registry Distribution Docker image as shown in this [sample PR](https://github.com/elastic/kibana/pull/89776).
+- Kibana: Do this only after all Package Storage distributions have been updated and released as new Docker images. Update the version of the Package Registry Distribution Docker image as shown in this [sample PR](https://github.com/elastic/kibana/pull/89776).

categories.go

@@ -32,6 +32,8 @@ func categoriesHandler(packagesBasePaths []string, cacheTime time.Duration) func
 
 		query := r.URL.Query()
 		var experimental bool
+		var includePolicyTemplates bool
+
 		// Read query filter params which can affect the output
 		if len(query) > 0 {
 			if v := query.Get("experimental"); v != "" {
@@ -41,6 +43,14 @@ func categoriesHandler(packagesBasePaths []string, cacheTime time.Duration) func
 					return
 				}
 			}
+
+			if v := query.Get("include_policy_templates"); v != "" {
+				includePolicyTemplates, err = strconv.ParseBool(v)
+				if err != nil {
+					badRequest(w, fmt.Sprintf("invalid 'include_policy_templates' query param: '%s'", v))
+					return
+				}
+			}
 		}
 
 		packageList := map[string]util.Package{}
@@ -81,6 +91,32 @@ func categoriesHandler(packagesBasePaths []string, cacheTime time.Duration) func
 
 				categories[c].Count = categories[c].Count + 1
 			}
+
+			if includePolicyTemplates {
+				for _, t := range p.PolicyTemplates {
+					// Skip when policy template level `categories` is empty and there is only one policy template
+					if t.Categories == nil && len(p.PolicyTemplates) == 1 {
+						continue
+					}
+
+					for _, c := range p.Categories {
+						categories[c].Count = categories[c].Count + 1
+					}
+
+					// Add policy template level categories.
+					for _, c := range t.Categories {
+						if _, ok := categories[c]; !ok {
+							categories[c] = &Category{
+								Id:    c,
+								Title: c,
+								Count: 0,
+							}
+						}
+
+						categories[c].Count = categories[c].Count + 1
+					}
+				}
+			}
 		}
 
 		data, err := getCategoriesOutput(categories)

main_test.go

@@ -51,6 +51,8 @@ func TestEndpoints(t *testing.T) {
 		{"/categories", "/categories", "categories.json", categoriesHandler(packagesBasePaths, testCacheTime)},
 		{"/categories?experimental=true", "/categories", "categories-experimental.json", categoriesHandler(packagesBasePaths, testCacheTime)},
 		{"/categories?experimental=foo", "/categories", "categories-experimental-error.json", categoriesHandler(packagesBasePaths, testCacheTime)},
+		{"/categories?include_policy_templates=true", "/categories", "categories-include-policy-templates.json", categoriesHandler(packagesBasePaths, testCacheTime)},
+		{"/categories?include_policy_templates=foo", "/categories", "categories-include-policy-templates-error.json", categoriesHandler(packagesBasePaths, testCacheTime)},
 		{"/search?kibana.version=6.5.2", "/search", "search-kibana652.json", searchHandler(packagesBasePaths, testCacheTime)},
 		{"/search?kibana.version=7.2.1", "/search", "search-kibana721.json", searchHandler(packagesBasePaths, testCacheTime)},
 		{"/search?category=web", "/search", "search-category-web.json", searchHandler(packagesBasePaths, testCacheTime)},

testdata/generated/categories-experimental.json

@@ -2,13 +2,18 @@
   {
     "id": "aws",
     "title": "AWS",
-    "count": 1
+    "count": 2
   },
   {
     "id": "azure",
     "title": "Azure",
     "count": 1
   },
+  {
+    "id": "cloud",
+    "title": "Cloud",
+    "count": 1
+  },
   {
     "id": "containers",
     "title": "Containers",

testdata/generated/categories-include-policy-templates-error.json

@@ -0,0 +1 @@
+invalid 'include_policy_templates' query param: 'foo'

testdata/generated/categories-include-policy-templates.json

@@ -0,0 +1,52 @@
+[
+  {
+    "id": "aws",
+    "title": "AWS",
+    "count": 2
+  },
+  {
+    "id": "azure",
+    "title": "Azure",
+    "count": 1
+  },
+  {
+    "id": "cloud",
+    "title": "Cloud",
+    "count": 2
+  },
+  {
+    "id": "compute",
+    "title": "compute",
+    "count": 1
+  },
+  {
+    "id": "containers",
+    "title": "Containers",
+    "count": 1
+  },
+  {
+    "id": "crm",
+    "title": "CRM",
+    "count": 1
+  },
+  {
+    "id": "custom",
+    "title": "Custom",
+    "count": 13
+  },
+  {
+    "id": "message_queue",
+    "title": "Message Queue",
+    "count": 1
+  },
+  {
+    "id": "monitoring",
+    "title": "Monitoring",
+    "count": 1
+  },
+  {
+    "id": "web",
+    "title": "Web",
+    "count": 3
+  }
+]

testdata/generated/categories.json

@@ -1,9 +1,19 @@
 [
+  {
+    "id": "aws",
+    "title": "AWS",
+    "count": 1
+  },
   {
     "id": "azure",
     "title": "Azure",
     "count": 1
   },
+  {
+    "id": "cloud",
+    "title": "Cloud",
+    "count": 1
+  },
   {
     "id": "containers",
     "title": "Containers",