Merge pull request #1448 from andrein/cherry-pick-1445

Cherry-pick grafana LDAP into release-0.9

examples/grafana-ldap.jsonnet

+local kp =
+  (import 'kube-prometheus/main.libsonnet') +
+  {
+    values+:: {
+      common+: {
+        namespace: 'monitoring',
+      },
+      grafana+: {
+        config+: {
+          sections: {
+            'auth.ldap': {
+              enabled: true,
+              config_file: '/etc/grafana/ldap.toml',
+              allow_sign_up: true,
+            },
+          },
+        },
+        ldap: |||
+          [[servers]]
+          host = "127.0.0.1"
+          port = 389
+          use_ssl = false
+          start_tls = false
+          ssl_skip_verify = false
+
+          bind_dn = "cn=admins,dc=example,dc=com"
+          bind_password = 'grafana'
+
+          search_filter = "(cn=%s)"
+          search_base_dns = ["dc=example,dc=com"]
+        |||,
+      },
+    },
+  };
+
+{ ['grafana-' + name]: kp.grafana[name] for name in std.objectFields(kp.grafana) }

jsonnet/kube-prometheus/components/grafana.libsonnet

@@ -27,6 +27,7 @@ local defaults = {
   containers: [],
   datasources: [],
   config: {},
+  ldap: null,
   plugins: [],
   env: [],
 };
@@ -57,6 +58,7 @@ function(params) {
         folderDashboards: g._config.folderDashboards,
         containers: g._config.containers,
         config+: g._config.config,
+        ldap: g._config.ldap,
         plugins+: g._config.plugins,
         env: g._config.env,
       } + (