chore(NODE-4409): fix load balanced mode CI (#3329)

Author: baileympearson

.evergreen/config.yml

@@ -1123,7 +1123,39 @@ tasks:
       - func: install dependencies
       - func: bootstrap mongohoused
       - func: run data lake tests
-  - name: test-load-balancer
+  - name: test-5.0-load-balanced
+    tags:
+      - latest
+      - sharded_cluster
+      - load_balancer
+    commands:
+      - func: install dependencies
+      - func: bootstrap mongo-orchestration
+        vars:
+          VERSION: '5.0'
+          TOPOLOGY: sharded_cluster
+          AUTH: auth
+          LOAD_BALANCER: 'true'
+      - func: start-load-balancer
+      - func: run-lb-tests
+      - func: stop-load-balancer
+  - name: test-6.0-load-balanced
+    tags:
+      - latest
+      - sharded_cluster
+      - load_balancer
+    commands:
+      - func: install dependencies
+      - func: bootstrap mongo-orchestration
+        vars:
+          VERSION: '6.0'
+          TOPOLOGY: sharded_cluster
+          AUTH: auth
+          LOAD_BALANCER: 'true'
+      - func: start-load-balancer
+      - func: run-lb-tests
+      - func: stop-load-balancer
+  - name: test-latest-load-balanced
     tags:
       - latest
       - sharded_cluster
@@ -2063,7 +2095,9 @@ buildvariants:
       - test-latest-server-v1-api
       - test-atlas-connectivity
       - test-atlas-data-lake
-      - test-load-balancer
+      - test-5.0-load-balanced
+      - test-6.0-load-balanced
+      - test-latest-load-balanced
       - test-auth-kerberos
       - test-auth-ldap
       - test-socks5

.evergreen/generate_evergreen_tasks.js

@@ -126,7 +126,45 @@ TASKS.push(
       ]
     },
     {
-      name: 'test-load-balancer',
+      name: 'test-5.0-load-balanced',
+      tags: ['latest', 'sharded_cluster', 'load_balancer'],
+      commands: [
+        { func: 'install dependencies' },
+        {
+          func: 'bootstrap mongo-orchestration',
+          vars: {
+            VERSION: '5.0',
+            TOPOLOGY: 'sharded_cluster',
+            AUTH: 'auth',
+            LOAD_BALANCER: 'true',
+          }
+        },
+        { func: 'start-load-balancer' },
+        { func: 'run-lb-tests' },
+        { func: 'stop-load-balancer' }
+      ]
+    },
+    {
+      name: 'test-6.0-load-balanced',
+      tags: ['latest', 'sharded_cluster', 'load_balancer'],
+      commands: [
+        { func: 'install dependencies' },
+        {
+          func: 'bootstrap mongo-orchestration',
+          vars: {
+            VERSION: '6.0',
+            TOPOLOGY: 'sharded_cluster',
+            AUTH: 'auth',
+            LOAD_BALANCER: 'true',
+          }
+        },
+        { func: 'start-load-balancer' },
+        { func: 'run-lb-tests' },
+        { func: 'stop-load-balancer' }
+      ]
+    },
+    {
+      name: 'test-latest-load-balanced',
       tags: ['latest', 'sharded_cluster', 'load_balancer'],
       commands: [
         { func: 'install dependencies' },

test/integration/node-specific/auto_connect.test.ts

@@ -20,6 +20,17 @@ describe('When executing an operation for the first time', () => {
     client = this.configuration.newClient();
   });
 
+  beforeEach('create test namespace', async function () {
+    const utilClient = this.configuration.newClient();
+
+    await utilClient
+      .db('test')
+      .createCollection('test')
+      .catch(() => null);
+
+    await utilClient.close();
+  });
+
   afterEach('cleanup client', async function () {
     await client.close();
   });

test/readme.md

@@ -268,23 +268,29 @@ The following steps will walk you through how to start and test a load balancer.
     `mongod --configsvr --replSet test --dbpath config1 --bind_ip localhost --port 27217`
 
     Initiate the config server in the shell:
-    `rs.initiate( { _id: "test", configsvr: true, members: [ { _id: 0, host: "localhost:27217" } ] })`
+    ```shell
+    mongosh "mongodb://localhost:27217" --exec "rs.initiate( { _id: "test", configsvr: true, members: [ { _id: 0, host: "localhost:27217" } ] })"
+    ```
 
     Create shard replica sets:
     `mongod --shardsvr --replSet testing  --dbpath repl1 --bind_ip localhost --port 27218 --setParameter enableTestCommands=true`
     `mongod --shardsvr --replSet testing  --dbpath repl2 --bind_ip localhost --port 27219 --setParameter enableTestCommands=true`
     `mongod --shardsvr --replSet testing  --dbpath repl3 --bind_ip localhost --port 27220 --setParameter enableTestCommands=true`
 
     Initiate replica set in the shell:
-    `rs.initiate( { _id: "testing", members: [ { _id: 0, host: "localhost:27218" }, { _id: 1, host: "localhost:27219" }, { _id: 2, host: "localhost:27220" }] })`
+    ```shell
+    mongosh "mongodb://localhost:27218" --exec "rs.initiate( { _id: "testing", members: [ { _id: 0, host: "localhost:27218" }, { _id: 1, host: "localhost:27219" }, { _id: 2, host: "localhost:27220" }] })"
+    ```
 
-    Create mongoses:
+    Create two mongoses running on ports 27017 and 27018:
     `mongos --configdb test/localhost:27217 --bind_ip localhost --setParameter enableTestCommands=1 --setParameter featureFlagLoadBalancer=true --setParameter loadBalancerPort=27050`
-    `mongos --configdb test/localhost:27217 --port 27018 --bind_ip localhost --setParameter enableTestCommands=1 --setParameter featureFlagLoadBalancer=true --setParameter loadBalancerPort=27051`
+    `mongos --configdb test/localhost:27217 --port 27018 --bind_ip localhost --setParameter enableTestCommands=1 --setParameter featureFlagLoadBalancer=true --setParameter loadBalancerPort=27051`.
 
     Initiate cluster on mongos in shell:
-    `sh.addShard("testing/localhost:27218,localhost:27219,localhost:27220")`
-    `sh.enableSharding("test")`
+    ```shell
+    mongosh "mongodb://localhost:27017" --exec "sh.addShard("testing/localhost:27218,localhost:27219,localhost:27220")"
+    mongosh "mongodb://localhost:27017" --exec "sh.enableSharding("test")"
+    ```
 
 1. Create an environment variable named `MONGODB_URI` that stores the URI of the sharded cluster you just created. For example: `export MONGODB_URI="mongodb://host1,host2/"`
 1. Install the HAProxy load balancer. For those on macOS, you can install HAProxy with `brew install haproxy`.
@@ -304,6 +310,8 @@ The following steps will walk you through how to start and test a load balancer.
    A new file name `lb.env` is automatically created.
 1. Source the environment variables using a command like `source lb.env`.
 1. Export **each** of the environment variables that were created in `lb.env`. For example: `export SINGLE_MONGOS_LB_URI`.
+1. Export the `LOAD_BALANCED` environment variable to 'true': `export LOAD_BALANCED='true'`
+1. Disable auth for tests: `export AUTH='noauth'`
 1. Run the test suite as you normally would:
    ```sh
    npm run check:test