GODRIVER-3175 Add Kubernetes support for OIDC.

.evergreen/config.yml

@@ -162,17 +162,18 @@ functions:
         args: 
           - ${DRIVERS_TOOLS}/.evergreen/teardown.sh
 
-  assume-ec2-role:
+  assume-test-secrets-ec2-role:
     - command: ec2.assume_role
       params:
         role_arn: ${aws_test_secrets_role}
+        duration_seconds: 1800
 
   run-oidc-auth-test-with-test-credentials:
     - command: subprocess.exec
       type: test
       params:
         binary: bash
-        env: 
+        env:
           OIDC: oidc
         include_expansions_in_env: [DRIVERS_TOOLS, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN]
         args: [*task-runner, test-oidc]
@@ -396,6 +397,16 @@ functions:
         include_expansions_in_env: ["MONGODB_URI"]
         args: [*task-runner, test-goleak]
 
+  "run oidc k8s test":
+    - command: subprocess.exec
+      type: test
+      params:
+        binary: bash
+        include_expansions_in_env: [AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, VARIANT, DRIVERS_TOOLS]
+        env:
+          OIDC_ENV: k8s
+        args: [*task-runner, test-oidc-remote]
+
   run-ocsp-server:
     - command: subprocess.exec
       params:
@@ -1658,6 +1669,19 @@ tasks:
           OIDC_ENV: gcp
         args: [*task-runner, test-oidc-remote]
 
+  - name: "oidc-auth-test-k8s"
+    commands:
+    - func: assume-test-secrets-ec2-role
+    - func: "run oidc k8s test"
+      vars:
+        VARIANT: eks
+    - func: "run oidc k8s test"
+      vars:
+        VARIANT: gke
+    - func: "run oidc k8s test"
+      vars:
+        VARIANT: aks
+
   - name: "test-search-index"
     commands:
       - func: "bootstrap-mongo-orchestration"
@@ -1902,14 +1926,17 @@ task_groups:
            - ${DRIVERS_TOOLS}/.evergreen/csfle/azurekms/teardown.sh
       - func: teardown
       - func: handle-test-artifacts
-
     tasks:
       - testazurekms-task
 
   - name: testoidc_task_group
+    setup_group_can_fail_task: true
+    setup_group_timeout_secs: 1800
+    teardown_task_can_fail_task: true
+    teardown_group_timeout_secs: 180 # 3 minutes (max allowed time)
     setup_group:
       - func: setup-system
-      - func: assume-ec2-role
+      - func: assume-test-secrets-ec2-role
       - command: subprocess.exec
         params:
           binary: bash
@@ -1926,12 +1953,14 @@ task_groups:
             - ${DRIVERS_TOOLS}/.evergreen/auth_oidc/teardown.sh
       - func: teardown
       - func: handle-test-artifacts
-    setup_group_can_fail_task: true
-    setup_group_timeout_secs: 1800
     tasks:
       - oidc-auth-test
 
   - name: testazureoidc_task_group
+    setup_group_can_fail_task: true
+    setup_group_timeout_secs: 1800
+    teardown_task_can_fail_task: true
+    teardown_group_timeout_secs: 180 # 3 minutes (max allowed time)
     setup_group:
       - func: setup-system
       - command: subprocess.exec
@@ -1949,12 +1978,14 @@ task_groups:
             - ${DRIVERS_TOOLS}/.evergreen/auth_oidc/azure/teardown.sh
       - func: teardown
       - func: handle-test-artifacts
-    setup_group_can_fail_task: true
-    setup_group_timeout_secs: 1800
     tasks:
       - oidc-auth-test-azure
 
   - name: testgcpoidc_task_group
+    setup_group_can_fail_task: true
+    setup_group_timeout_secs: 1800
+    teardown_task_can_fail_task: true
+    teardown_group_timeout_secs: 180 # 3 minutes (max allowed time)
     setup_group:
       - func: setup-system
       - command: subprocess.exec
@@ -1972,10 +2003,32 @@ task_groups:
             - ${DRIVERS_TOOLS}/.evergreen/auth_oidc/gcp/teardown.sh
       - func: teardown
       - func: handle-test-artifacts
+    tasks:
+      - oidc-auth-test-gcp
+
+  - name: testk8soidc_task_group
     setup_group_can_fail_task: true
     setup_group_timeout_secs: 1800
+    teardown_task_can_fail_task: true
+    teardown_group_timeout_secs: 180 # 3 minutes (max allowed time)
+    setup_group:
+      - func: setup-system
+      - command: subprocess.exec
+        params:
+          binary: bash
+          include_expansions_in_env: ["AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY", "AWS_SESSION_TOKEN"]
+          args:
+            - ${DRIVERS_TOOLS}/.evergreen/auth_oidc/k8s/setup.sh
+    teardown_group:
+      - command: subprocess.exec
+        params:
+          binary: bash
+          args:
+            - ${DRIVERS_TOOLS}/.evergreen/auth_oidc/k8s/teardown.sh
+      - func: teardown
+      - func: handle-test-artifacts
     tasks:
-      - oidc-auth-test-gcp
+      - oidc-auth-test-k8s
 
   - name: test-aws-lambda-task-group
     setup_group:
@@ -2322,8 +2375,6 @@ buildvariants:
       GO_DIST: "/opt/golang/go1.22"
     tasks:
       - name: testoidc_task_group
-        batchtime: 20160 # Use a batchtime of 14 days as suggested by the CSFLE test README
       - name: testazureoidc_task_group
-        batchtime: 20160 # Use a batchtime of 14 days as suggested by the CSFLE test README
       - name: testgcpoidc_task_group
-        batchtime: 20160 # Use a batchtime of 14 days as suggested by the CSFLE test README
+      - name: testk8soidc_task_group

etc/run-oidc-remote-test.sh

@@ -31,6 +31,14 @@ elif [ $OIDC_ENV == "gcp" ]; then
     export GCPOIDC_TEST_CMD="PROJECT_DIRECTORY='.' OIDC_ENV=gcp OIDC=oidc ./etc/run-oidc-test.sh ./test"
     bash ${DRIVERS_TOOLS}/.evergreen/auth_oidc/gcp/run-driver-test.sh
 
+elif [ $OIDC_ENV == "k8s" ]; then
+    export K8S_VARIANT=${VARIANT}
+    export K8S_DRIVERS_TAR_FILE=$DRIVERS_TAR_FILE
+    export K8S_TEST_CMD="PROJECT_DIRECTORY='.' OIDC_ENV=k8s OIDC=oidc ./etc/run-oidc-test.sh ./test"
+    bash ${DRIVERS_TOOLS}/.evergreen/auth_oidc/k8s/setup-pod.sh
+    bash ${DRIVERS_TOOLS}/.evergreen/auth_oidc/k8s/run-driver-test.sh
+    bash ${DRIVERS_TOOLS}/.evergreen/auth_oidc/k8s/teardown-pod.sh
+
 else
     echo "Unrecognized OIDC_ENV $OIDC_ENV"
     exit 1

etc/run-oidc-test.sh

@@ -21,6 +21,12 @@ elif [ $OIDC_ENV == "azure" ]; then
 elif [ $OIDC_ENV == "gcp" ]; then
     source ./secrets-export.sh
 
+elif [ $OIDC_ENV == "k8s" ]; then
+    # "run-driver-test.sh" in drivers-evergreen-tools takes care of sourcing
+    # "secrets-export.sh". Nothing to do in this block, but we still need a
+    # command to be syntactically valid, so use no-op command ":".
+    :
+
 else
     echo "Unrecognized OIDC_ENV $OIDC_ENV"
     exit 1

internal/cmd/testoidcauth/main.go

@@ -13,6 +13,7 @@ import (
 	"os"
 	"path"
 	"reflect"
+	"strings"
 	"sync"
 	"time"
 	"unsafe"
@@ -101,7 +102,7 @@ func main() {
 
 	hasError := false
 	aux := func(test_name string, f func() error) {
-		fmt.Printf("%s...", test_name)
+		fmt.Printf("%s...\n", test_name)
 		err := f()
 		if err != nil {
 			fmt.Println("Test Error: ", err)
@@ -148,6 +149,8 @@ func main() {
 		aux("machine_5_2_azureWithNoUsername", machine52azureWithBadUsername)
 	case "gcp":
 		aux("machine_6_1_gcpWithNoUsername", machine61gcpWithNoUsername)
+	case "k8s":
+		aux("machine_k8s", machinek8s)
 	default:
 		log.Fatal("Unknown OIDC_ENV: ", env)
 	}
@@ -282,7 +285,7 @@ func machine21validCallbackInputs() error {
 		tokenFile := tokenFile("test_user1")
 		accessToken, err := os.ReadFile(tokenFile)
 		if err != nil {
-			fmt.Printf("machine_2_1: failed reading token file: %v", err)
+			return nil, fmt.Errorf("machine_2_1: failed reading token file: %w", err)
 		}
 		return &options.OIDCCredential{
 			AccessToken:  string(accessToken),
@@ -1817,3 +1820,27 @@ func machine61gcpWithNoUsername() error {
 	}
 	return nil
 }
+
+// machinek8s tests the "k8s" Kubernetes OIDC environment. There is no specified
+// prose test for "k8s", so this test simply checks that you can run a "find"
+// with the provided conn string.
+func machinek8s() error {
+	if !strings.Contains(uriSingle, "ENVIRONMENT:k8s") {
+		return fmt.Errorf("expected MONGODB_URI_SINGLE to specify ENVIRONMENT:k8s for Kubernetes test")
+	}
+
+	opts := options.Client().ApplyURI(uriSingle)
+	client, err := mongo.Connect(opts)
+	if err != nil {
+		return fmt.Errorf("machine_k8s: failed connecting client: %v", err)
+	}
+	defer func() { _ = client.Disconnect(context.Background()) }()
+
+	coll := client.Database("test").Collection("test")
+
+	_, err = coll.Find(context.Background(), bson.D{})
+	if err != nil {
+		return fmt.Errorf("machine_k8s: failed executing Find: %v", err)
+	}
+	return nil
+}

mongo/options/clientoptions.go

@@ -596,24 +596,45 @@ func (c *ClientOptions) Validate() error {
 			return fmt.Errorf("cannot set both OIDCMachineCallback and OIDCHumanCallback, only one may be specified")
 		}
 		if c.Auth.OIDCHumanCallback == nil && c.Auth.AuthMechanismProperties[auth.AllowedHostsProp] != "" {
-			return fmt.Errorf("Cannot specify ALLOWED_HOSTS without an OIDCHumanCallback")
+			return fmt.Errorf("cannot specify ALLOWED_HOSTS without an OIDCHumanCallback")
 		}
+		if c.Auth.OIDCMachineCallback == nil && c.Auth.OIDCHumanCallback == nil && c.Auth.AuthMechanismProperties[auth.EnvironmentProp] == "" {
+			return errors.New("must specify at least one of OIDCMachineCallback, OIDCHumanCallback, or ENVIRONMENT authMechanismProperty")
+		}
+
+		// Return an error if an unsupported authMechanismProperty is specified
+		// for MONGODB-OIDC.
+		for prop := range c.Auth.AuthMechanismProperties {
+			switch prop {
+			case auth.AllowedHostsProp, auth.EnvironmentProp, auth.ResourceProp:
+			default:
+				return fmt.Errorf("auth mechanism property %q is not valid for MONGODB-OIDC", prop)
+			}
+		}
+
 		if env, ok := c.Auth.AuthMechanismProperties[auth.EnvironmentProp]; ok {
 			switch env {
 			case auth.GCPEnvironmentValue, auth.AzureEnvironmentValue:
+				if c.Auth.AuthMechanismProperties[auth.ResourceProp] == "" {
+					return fmt.Errorf("%q must be set for the %s %q", auth.ResourceProp, env, auth.EnvironmentProp)
+				}
+				fallthrough
+			case auth.K8SEnvironmentValue:
 				if c.Auth.OIDCMachineCallback != nil {
 					return fmt.Errorf("OIDCMachineCallback cannot be specified with the %s %q", env, auth.EnvironmentProp)
 				}
 				if c.Auth.OIDCHumanCallback != nil {
 					return fmt.Errorf("OIDCHumanCallback cannot be specified with the %s %q", env, auth.EnvironmentProp)
 				}
-				if c.Auth.AuthMechanismProperties[auth.ResourceProp] == "" {
-					return fmt.Errorf("%q must be set for the %s %q", auth.ResourceProp, env, auth.EnvironmentProp)
-				}
-			default:
+			case auth.TestEnvironmentValue:
 				if c.Auth.AuthMechanismProperties[auth.ResourceProp] != "" {
 					return fmt.Errorf("%q must not be set for the %s %q", auth.ResourceProp, env, auth.EnvironmentProp)
 				}
+				if c.Auth.Username != "" {
+					return fmt.Errorf("must not specify username for %s %q", env, auth.EnvironmentProp)
+				}
+			default:
+				return fmt.Errorf("the %s %q is not supported for MONGODB-OIDC", env, auth.EnvironmentProp)
 			}
 		}
 	}