Log deprecation warnings for plugins which won't be disable-able in 8.0

docs/dev-tools/console/console.asciidoc

@@ -134,6 +134,7 @@ shortcuts, click *Help*.
 [[console-settings]]
 === Disable Console
 
+deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
 If you don’t want to use *Console*, you can disable it by setting `console.enabled`
 to `false` in your `kibana.yml` configuration file. Changing this setting
 causes the server to regenerate assets on the next startup,

docs/settings/alert-action-settings.asciidoc

@@ -32,6 +32,7 @@ Be sure to back up the encryption key value somewhere safe, as your alerting rul
 ==== Action settings
 
 `xpack.actions.enabled`::
+deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
 Feature toggle that enables Actions in {kib}.
 If `false`, all features dependent on Actions are disabled, including the *Observability* and *Security* apps.  Default: `true`.
 

docs/settings/apm-settings.asciidoc

@@ -41,7 +41,8 @@ Changing these settings may disable features of the APM App.
 [cols="2*<"]
 |===
 | `xpack.apm.enabled`
-  | Set to `false` to disable the APM app. Defaults to `true`.
+  | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+  Set to `false` to disable the APM app. Defaults to `true`.
 
 | `xpack.apm.maxServiceEnvironments`
   | Maximum number of unique service environments recognized by the UI. Defaults to `100`.

docs/settings/dev-settings.asciidoc

@@ -13,6 +13,7 @@ They are enabled by default.
 ==== Grok Debugger settings
 
 `xpack.grokdebugger.enabled` {ess-icon}::
+deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
 Set to `true` to enable the <<xpack-grokdebugger,Grok Debugger>>. Defaults to `true`.
 
 
@@ -21,11 +22,13 @@ Set to `true` to enable the <<xpack-grokdebugger,Grok Debugger>>. Defaults to `t
 ==== {searchprofiler} settings
 
 `xpack.searchprofiler.enabled`::
+deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
 Set to `true` to enable the <<xpack-profiler,{searchprofiler}>>. Defaults to `true`.
 
 [float]
 [[painless_lab-settings]]
 ==== Painless Lab settings
 
 `xpack.painless_lab.enabled`::
+deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
 When set to `true`, enables the <<painlesslab, Painless Lab>>. Defaults to `true`.

docs/settings/fleet-settings.asciidoc

@@ -21,7 +21,8 @@ See the {fleet-guide}/index.html[{fleet}] docs for more information.
 [cols="2*<"]
 |===
 | `xpack.fleet.enabled` {ess-icon}
-  | Set to `true` (default) to enable {fleet}. 
+  | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+  Set to `true` (default) to enable {fleet}. 
 | `xpack.fleet.agents.enabled` {ess-icon}
   | Set to `true` (default) to enable {fleet}. 
 |===

docs/settings/general-infra-logs-ui-settings.asciidoc

@@ -1,7 +1,8 @@
 [cols="2*<"]
 |===
 | `xpack.infra.enabled`
-  | Set to `false` to disable the Logs and Metrics app plugin {kib}. Defaults to `true`.
+  | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+  Set to `false` to disable the Logs and Metrics app plugin {kib}. Defaults to `true`.
 
 | `xpack.infra.sources.default.logAlias`
   | Index pattern for matching indices that contain log data. Defaults to `filebeat-*,kibana_sample_data_logs*`. To match multiple wildcard patterns, use a comma to separate the names, with no space after the comma. For example, `logstash-app1-*,default-logs-*`.

docs/settings/graph-settings.asciidoc

@@ -8,4 +8,5 @@
 You do not need to configure any settings to use the {graph-features}.
 
 `xpack.graph.enabled` {ess-icon}::
+deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
 Set to `false` to disable the {graph-features}.

docs/settings/ml-settings.asciidoc

@@ -14,7 +14,8 @@ enabled by default.
 [cols="2*<"]
 |===
 | `xpack.ml.enabled` {ess-icon}
-  | Set to `true` (default) to enable {kib} {ml-features}. +
+  | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+  Set to `true` (default) to enable {kib} {ml-features}. +
   +
   If set to `false` in `kibana.yml`, the {ml} icon is hidden in this {kib}
   instance. If `xpack.ml.enabled` is set to `true` in `elasticsearch.yml`, however,

docs/settings/monitoring-settings.asciidoc

@@ -32,7 +32,8 @@ For more information, see
 [cols="2*<"]
 |===
 | `monitoring.enabled`
-  | Set to `true` (default) to enable the {monitor-features} in {kib}. Unlike the
+  | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+  Set to `true` (default) to enable the {monitor-features} in {kib}. Unlike the
   <<monitoring-ui-enabled, `monitoring.ui.enabled`>> setting, when this setting is `false`, the
   monitoring back-end does not run and {kib} stats are not sent to the monitoring
   cluster.

docs/settings/security-settings.asciidoc

@@ -15,7 +15,8 @@ You do not need to configure any additional settings to use the
 [cols="2*<"]
 |===
 | `xpack.security.enabled`
-  | By default, {kib} automatically detects whether to enable the
+  | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+  By default, {kib} automatically detects whether to enable the
   {security-features} based on the license and whether {es} {security-features}
   are enabled. +
   +

docs/settings/spaces-settings.asciidoc

@@ -15,8 +15,9 @@ roles when Security is enabled.
 [cols="2*<"]
 |===
 | `xpack.spaces.enabled`
-  | Set to `true` (default) to enable Spaces in {kib}.
-    This setting is deprecated. Starting in 8.0, it will not be possible to disable this plugin.
+  | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+  Set to `true` (default) to enable Spaces in {kib}.
+  This setting is deprecated. Starting in 8.0, it will not be possible to disable this plugin.
 
 | `xpack.spaces.maxSpaces`
   | The maximum amount of Spaces that can be used with this instance of {kib}. Some operations

docs/settings/url-drilldown-settings.asciidoc

@@ -9,7 +9,8 @@ Configure the URL drilldown settings in your `kibana.yml` configuration file.
 [cols="2*<"]
 |===
 | [[url-drilldown-enabled]] `url_drilldown.enabled`
- | When `true`, enables URL drilldowns on your {kib} instance.
+ | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+ When `true`, enables URL drilldowns on your {kib} instance.
 
 | [[external-URL-policy]] `externalUrl.policy`
  | Configures the external URL policies. URL drilldowns respect the global *External URL* service, which you can use to deny or allow external URLs.

docs/setup/docker.asciidoc

@@ -125,7 +125,7 @@ Some example translations are shown here:
 **Environment Variable**:: **Kibana Setting**
 `SERVER_NAME`:: `server.name`
 `SERVER_BASEPATH`:: `server.basePath`
-`MONITORING_ENABLED`:: `monitoring.enabled`
+`ELASTICSEARCH_HOSTS`:: `elasticsearch.hosts`
 
 In general, any setting listed in <<settings>> can be configured with this technique.
 

docs/setup/settings.asciidoc

@@ -21,7 +21,8 @@ configuration using `${MY_ENV_VAR}` syntax.
 |===
 
 | `console.enabled:`
- | Toggling this causes the server to regenerate assets on the next startup,
+ | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+Toggling this causes the server to regenerate assets on the next startup,
 which may cause a delay before pages start being served.
 Set to `false` to disable Console. *Default: `true`*
 
@@ -706,12 +707,13 @@ sources and images. When false, Vega can only get data from {es}. *Default: `fal
  | Enables you to view the underlying documents in a data series from a dashboard panel. *Default: `false`*
 
 | `xpack.license_management.enabled`
- | Set this value to false to
-disable the License Management UI. *Default: `true`*
+ | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+Set this value to false to disable the License Management UI.
+*Default: `true`*
 
 | `xpack.rollup.enabled:`
- | Set this value to false to disable the
-Rollup UI. *Default: true*
+ | deprecated:[7.16.0,"In 8.0 and later, this setting will no longer be supported."]
+Set this value to false to disable the Rollup UI. *Default: true*
 
 | `i18n.locale` {ess-icon}
  | Set this value to change the {kib} interface language.

docs/user/plugins.asciidoc

@@ -149,6 +149,8 @@ NOTE: Removing a plugin will result in an "optimize" run which will delay the ne
 [[disable-plugin]]
 == Disable plugins
 
+deprecated:[7.16.0,"In 8.0 and later, this setting will only be supported for a subset of plugins that have opted in to the behavior."]
+
 Use the following command to disable a plugin:
 
 [source,shell]
@@ -158,7 +160,7 @@ Use the following command to disable a plugin:
 
 NOTE: Disabling or enabling a plugin will result in an "optimize" run which will delay the start of {kib}.
 
-<1> You can find a plugin's plugin ID as the value of the `name` property in the plugin's `package.json` file.
+<1> You can find a plugin's plugin ID as the value of the `name` property in the plugin's `kibana.json` file.
 
 [float]
 [[configure-plugin-manager]]

packages/kbn-config/src/config_service.test.ts

@@ -364,6 +364,37 @@ test('read "enabled" even if its schema is not present', async () => {
   expect(isEnabled).toBe(true);
 });
 
+test('logs deprecation if schema is not present and "enabled" is used', async () => {
+  const initialConfig = {
+    foo: {
+      enabled: true,
+    },
+  };
+
+  const rawConfigProvider = rawConfigServiceMock.create({ rawConfig: initialConfig });
+  const configService = new ConfigService(rawConfigProvider, defaultEnv, logger);
+
+  await configService.isEnabledAtPath('foo');
+  expect(configService.getHandledDeprecatedConfigs()).toMatchInlineSnapshot(`
+    Array [
+      Array [
+        "foo",
+        Array [
+          Object {
+            "correctiveActions": Object {
+              "manualSteps": Array [
+                "Remove \\"foo.enabled\\" from the Kibana config file, CLI flag, or environment variable (in Docker only) before upgrading to 8.0.0.",
+              ],
+            },
+            "message": "Configuring \\"foo.enabled\\" is deprecated and will be removed in 8.0.0.",
+            "title": "Setting \\"foo.enabled\\" is deprecated",
+          },
+        ],
+      ],
+    ]
+  `);
+});
+
 test('allows plugins to specify "enabled" flag via validation schema', async () => {
   const initialConfig = {};
 

packages/kbn-config/src/config_service.ts

@@ -177,6 +177,23 @@ export class ConfigService {
     // if plugin hasn't got a config schema, we try to read "enabled" directly
     const isEnabled = validatedConfig?.enabled ?? config.get(enabledPath);
 
+    // if we implicitly added an `enabled` config to a plugin without a schema,
+    // we log a deprecation warning, as this will not be supported in 8.0
+    if (validatedConfig?.enabled === undefined && isEnabled !== undefined) {
+      const deprecationPath = pathToString(enabledPath);
+      const deprecatedConfigDetails: DeprecatedConfigDetails = {
+        title: `Setting "${deprecationPath}" is deprecated`,
+        message: `Configuring "${deprecationPath}" is deprecated and will be removed in 8.0.0.`,
+        correctiveActions: {
+          manualSteps: [
+            `Remove "${deprecationPath}" from the Kibana config file, CLI flag, or environment variable (in Docker only) before upgrading to 8.0.0.`,
+          ],
+        },
+      };
+      this.deprecationLog.warn(deprecatedConfigDetails.message);
+      this.markDeprecatedConfigAsHandled(namespace, deprecatedConfigDetails);
+    }
+
     // not declared. consider that plugin is enabled by default
     if (isEnabled === undefined) {
       return true;
@@ -220,9 +237,7 @@ export class ConfigService {
       if (!context.silent) {
         deprecationMessages.push(context.message);
       }
-      const handledDeprecatedConfig = this.handledDeprecatedConfigs.get(domainId) || [];
-      handledDeprecatedConfig.push(context);
-      this.handledDeprecatedConfigs.set(domainId, handledDeprecatedConfig);
+      this.markDeprecatedConfigAsHandled(domainId, context);
     };
 
     applyDeprecations(rawConfig, deprecations, createAddDeprecation);
@@ -260,6 +275,12 @@ export class ConfigService {
     this.log.debug(`Marking config path as handled: ${path}`);
     this.handledPaths.add(path);
   }
+
+  private markDeprecatedConfigAsHandled(domainId: string, config: DeprecatedConfigDetails) {
+    const handledDeprecatedConfig = this.handledDeprecatedConfigs.get(domainId) || [];
+    handledDeprecatedConfig.push(config);
+    this.handledDeprecatedConfigs.set(domainId, handledDeprecatedConfig);
+  }
 }
 
 const createPluginEnabledPath = (configPath: string | string[]) => {