CSHARP-3740: Add native support for AWS IAM Roles for service account…

…s, EKS in particular. (#947)

evergreen/evergreen.yml

@@ -432,7 +432,12 @@ functions:
               "iam_auth_assume_role_name" : "${iam_auth_assume_role_name}",
               "iam_auth_ec2_instance_account" : "${iam_auth_ec2_instance_account}",
               "iam_auth_ec2_instance_secret_access_key" : "${iam_auth_ec2_instance_secret_access_key}",
-              "iam_auth_ec2_instance_profile" : "${iam_auth_ec2_instance_profile}"
+              "iam_auth_ec2_instance_profile" : "${iam_auth_ec2_instance_profile}",
+              "iam_auth_assume_web_role_name": "${iam_auth_assume_web_role_name}",
+              "iam_web_identity_issuer": "${iam_web_identity_issuer}",
+              "iam_web_identity_rsa_key": "${iam_web_identity_rsa_key}",
+              "iam_web_identity_jwks_uri": "${iam_web_identity_jwks_uri}",
+              "iam_web_identity_token_file": "${iam_web_identity_token_file}"
           }
           EOF
 
@@ -551,6 +556,76 @@ functions:
           mongo --nodb setup.js aws_e2e_ecs.js
           cd -
 
+  run-aws-auth-test-with-aws-web-identity-credentials:
+    - command: shell.exec
+      type: test
+      params:
+        working_dir: mongo-csharp-driver
+        script: |
+          ${PREPARE_SHELL}
+          if [ "${skip_web_identity_auth_test}" = "true" ]; then
+             echo "This platform does not support the web identity auth test, skipping..."
+             exit 0
+          fi
+          cd ${DRIVERS_TOOLS}/.evergreen/auth_aws
+          . ./activate_venv.sh
+          mongo aws_e2e_web_identity.js
+    - command: shell.exec
+      type: test
+      params:
+        working_dir: mongo-csharp-driver
+        silent: true
+        script: |
+          if [ "${skip_web_identity_auth_test}" = "true" ]; then
+             echo "This platform does not support the web identity auth test, skipping..."
+             exit 0
+          fi        
+          # DO NOT ECHO WITH XTRACE (which PREPARE_SHELL does)
+          cat <<'EOF' > "${PROJECT_DIRECTORY}/prepare_mongodb_aws.sh"
+            export AWS_ROLE_ARN="${iam_auth_assume_web_role_name}"
+            export AWS_WEB_IDENTITY_TOKEN_FILE="${iam_web_identity_token_file}"
+            export MONGODB_URI="mongodb://localhost"
+          EOF
+    - command: shell.exec
+      type: test
+      params:
+        working_dir: mongo-csharp-driver
+        script: |
+          ${PREPARE_SHELL}
+          if [ "${skip_web_identity_auth_test}" = "true" ]; then
+             echo "This platform does not support the web identity auth test, skipping..."
+             exit 0
+          fi
+          PROJECT_DIRECTORY=${PROJECT_DIRECTORY} OS=$OS ASSERT_NO_URI_CREDS=true evergreen/run-mongodb-aws-test.sh
+    - command: shell.exec
+      type: test
+      params:
+        working_dir: mongo-csharp-driver
+        silent: true
+        script: |
+          if [ "${skip_EC2_auth_test}" = "true" ]; then
+             echo "This platform does not support the web identity auth test, skipping..."
+             exit 0
+          fi        
+          # DO NOT ECHO WITH XTRACE (which PREPARE_SHELL does)
+          cat <<'EOF' > "${PROJECT_DIRECTORY}/prepare_mongodb_aws.sh"
+            export AWS_ROLE_ARN="${iam_auth_assume_web_role_name}"
+            export AWS_WEB_IDENTITY_TOKEN_FILE="${iam_web_identity_token_file}"
+            export AWS_ROLE_SESSION_NAME="test"
+            export MONGODB_URI="mongodb://localhost"
+          EOF
+    - command: shell.exec
+      type: test
+      params:
+        working_dir: mongo-csharp-driver
+        script: |
+          ${PREPARE_SHELL}
+          if [ "${skip_web_identity_auth_test}" = "true" ]; then
+             echo "This platform does not support the web identity auth test, skipping..."
+             exit 0
+          fi
+          PROJECT_DIRECTORY=${PROJECT_DIRECTORY} OS=$OS  ASSERT_NO_URI_CREDS=true evergreen/run-mongodb-aws-test.sh
+
   run-aws-auth-test-with-aws-credentials-as-environment-variables:
     - command: shell.exec
       type: test
@@ -1067,6 +1142,7 @@ tasks:
         - func: run-aws-auth-test-with-aws-credentials-and-session-token-as-environment-variables
         - func: run-aws-auth-test-with-aws-EC2-credentials
         - func: run-aws-auth-test-with-aws-ECS-credentials
+        - func: run-aws-auth-test-with-aws-web-identity-credentials
 
     - name: stable-api-tests-net472
       commands:
@@ -1599,6 +1675,7 @@ axes:
         variables:
           OS: "windows-64"
           skip_ECS_auth_test: true
+          skip_web_identity_auth_test: true
         run_on: windows-64-vs2017-test
       - id: "ubuntu-1804"
         display_name: "Ubuntu 18.04"
@@ -1611,13 +1688,15 @@ axes:
           OS: "macos-1100"
           skip_EC2_auth_test: true
           skip_ECS_auth_test: true
+          skip_web_identity_auth_test: true
         run_on: macos-1100
       - id: "macos-1100-arm64"
         display_name: "macOS 11.00 M1"
         variables:
           OS: "macos-1100-arm64"
           skip_EC2_auth_test: true
           skip_ECS_auth_test: true
+          skip_web_identity_auth_test: true
         run_on: macos-1100-arm64
 
   - id: topology

evergreen/run-mongodb-aws-ecs-test.sh

@@ -8,8 +8,8 @@ set -o errexit  # Exit the script with error if any of the commands fail
 #       ASSERT_NO_URI_CREDS     Determines whether we need assert existence credentials in connection string or not
 #
 # Environment variables used as output:
-#       AWS_TESTS_ENABLED       Allows runnings AWS tests
-#       AWS_ECS_TEST            Allows runnings EVS tests
+#       AWS_TESTS_ENABLED       Allows running AWS tests
+#       AWS_ECS_ENABLED         Allows running ECS tests
 #
 ############################################
 #            Main Program                  #
@@ -28,7 +28,7 @@ fi
 # Now we can safely enable xtrace
 set -o xtrace
 export AWS_TESTS_ENABLED=true
-export AWS_ECS_TEST=true
+export AWS_ECS_ENABLED=true
 
 # EG scripts for ECS assume that a root folder is "src" and all driver side scripts are placed in ".evergreen" folder. 
 # So that script is copied into "src/.evergreen" before running