chore: add readme and allow env configuration

docker/oidc/mock-oidc-provider/README.md

@@ -0,0 +1,20 @@
+### MongoDB enterprise with mock OIDC provider auth enabled
+
+```sh
+docker-compose -f oidc/mock-oidc-provider/docker-compose.yaml up
+```
+
+#### How to connect
+
+```sh
+mongosh \
+  --host localhost \
+  --port 27017 \
+  --authenticationMechanism MONGODB-OIDC
+```
+
+Connection string:
+
+```
+mongodb://localhost:27017/?authMechanism=MONGODB-OIDC
+```

docker/oidc/mock-oidc-provider/config.ts

@@ -0,0 +1,21 @@
+import path from 'path';
+
+import ConnectionString from 'mongodb-connection-string-url';
+
+const port = '27017';
+
+const connectionString = new ConnectionString(`mongodb://localhost:${port}`);
+connectionString.searchParams.set('authMechanism', 'MONGODB-OIDC');
+
+export default {
+  dockerCompose: {
+    projectName: path.basename(__dirname),
+    yamlPath: path.resolve(__dirname, 'docker-compose.yaml'),
+  },
+  waitOn: [`tcp:${port}`],
+  connections: {
+    oidc: {
+      connectionString: connectionString.href,
+    },
+  },
+};

docker/oidc/mock-oidc-provider/docker-compose.yaml

@@ -0,0 +1,13 @@
+version: '3'
+services:
+  mongodb-server-with-mock-oidc-provider:
+    build: .
+    ports:
+      - '27017:27017'
+      - '29091:29091'
+    environment:
+      - OIDC_TOKEN_PAYLOAD_EXPIRES_IN
+      # comma-separated list
+      - OIDC_TOKEN_PAYLOAD_GROUPS
+      - OIDC_TOKEN_PAYLOAD_SUB
+      - OIDC_TOKEN_PAYLOAD_AUD

docker/oidc/mock-oidc-provider/oidc-mock-provider.js

@@ -1,12 +1,16 @@
 const { OIDCMockProvider } = require('@mongodb-js/oidc-mock-provider');
 
 const DEFAULT_TOKEN_PAYLOAD = {
-  expires_in: 3600,
+  expires_in: process.env.OIDC_TOKEN_PAYLOAD_EXPIRES_IN
+    ? Number(process.env.OIDC_TOKEN_PAYLOAD_EXPIRES_IN)
+    : 3600,
   payload: {
     // Define the user information stored inside the access tokens.
-    groups: ['testgroup'],
-    sub: 'testuser',
-    aud: 'resource-server-audience-value',
+    groups: process.env.OIDC_TOKEN_PAYLOAD_GROUPS
+      ? process.env.OIDC_TOKEN_PAYLOAD_GROUPS.split(',')
+      : ['testgroup'],
+    sub: process.env.OIDC_TOKEN_PAYLOAD_SUB || 'testuser',
+    aud: process.env.OIDC_TOKEN_PAYLOAD_AUD || 'resource-server-audience-value',
   },
 };