Add alertmanager config to single process documents (#6274)

Author: SungJin1212

docs/configuration/single-process-config-blocks-gossip-1.yaml

@@ -96,3 +96,12 @@ ruler_storage:
   backend: local
   local:
     directory: /tmp/cortex/rules
+
+alertmanager:
+  external_url: http://localhost/alertmanager
+
+alertmanager_storage:
+  backend: local
+  local:
+    # Make sure file exist
+    path: /tmp/cortex/alerts

docs/configuration/single-process-config-blocks-gossip-2.yaml

@@ -95,3 +95,12 @@ ruler_storage:
   backend: local
   local:
     directory: /tmp/cortex/rules
+
+alertmanager:
+  external_url: http://localhost/alertmanager
+
+alertmanager_storage:
+  backend: local
+  local:
+    # Make sure file exist
+    path: /tmp/cortex/alerts

docs/configuration/single-process-config-blocks-local.yaml

@@ -88,3 +88,12 @@ ruler_storage:
   backend: local
   local:
     directory: /tmp/cortex/rules
+
+alertmanager:
+  external_url: http://localhost/alertmanager
+
+alertmanager_storage:
+  backend: local
+  local:
+    # Make sure file exist
+    path: /tmp/cortex/alerts

docs/configuration/single-process-config-blocks-tls.yaml

@@ -102,3 +102,12 @@ ruler_storage:
   backend: local
   local:
     directory: /tmp/cortex/rules
+
+alertmanager:
+  external_url: http://localhost/alertmanager
+
+alertmanager_storage:
+  backend: local
+  local:
+    # Make sure file exist
+    path: /tmp/cortex/alerts

docs/configuration/single-process-config-blocks.yaml

@@ -88,3 +88,12 @@ ruler_storage:
   backend: local
   local:
     directory: /tmp/cortex/rules
+
+alertmanager:
+  external_url: http://localhost/alertmanager
+
+alertmanager_storage:
+  backend: local
+  local:
+    # Make sure file exist
+    path: /tmp/cortex/alerts