Hauptkonto zu einer Rolle hinzufügen
Mit Sammlungen den Überblick behalten
Sie können Inhalte basierend auf Ihren Einstellungen speichern und kategorisieren.
Zeigt das Hinzufügen eines Hauptkontos zu einer vorhandenen Rollenbindung in einer IAM-Richtlinie.
Weitere Informationen
Eine ausführliche Dokumentation, die dieses Codebeispiel enthält, finden Sie hier:
Codebeispiel
Nächste Schritte
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[[["Leicht verständlich","easyToUnderstand","thumb-up"],["Mein Problem wurde gelöst","solvedMyProblem","thumb-up"],["Sonstiges","otherUp","thumb-up"]],[["Schwer verständlich","hardToUnderstand","thumb-down"],["Informationen oder Beispielcode falsch","incorrectInformationOrSampleCode","thumb-down"],["Benötigte Informationen/Beispiele nicht gefunden","missingTheInformationSamplesINeed","thumb-down"],["Problem mit der Übersetzung","translationIssue","thumb-down"],["Sonstiges","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis page provides code examples demonstrating how to add a principal (member) to an existing role binding within an Identity and Access Management (IAM) policy.\u003c/p\u003e\n"],["\u003cp\u003eCode samples are available in C#, Go, Java, and Python, showcasing different approaches to modifying IAM policies.\u003c/p\u003e\n"],["\u003cp\u003eThe process involves identifying the correct role binding and then adding the specified member to the list of members associated with that role.\u003c/p\u003e\n"],["\u003cp\u003eThe page also provides links to learn how to setup the IAM client libraries and authenticate to IAM using Application Default Credentials.\u003c/p\u003e\n"]]],[],null,["# Add a principal to a role binding\n\nDemonstrates adding a principal to an existing role binding in an IAM policy.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Manage access to projects, folders, and organizations](/iam/docs/granting-changing-revoking-access)\n\nCode sample\n-----------\n\n### C#\n\n\nTo learn how to install and use the client library for IAM, see\n[IAM client libraries](/iam/docs/reference/libraries).\n\n\nFor more information, see the\n[IAM C# API\nreference documentation](https://developers.google.com/api-client-library/dotnet/apis/iam/v1).\n\n\nTo authenticate to IAM, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n\n using System.Linq;\n using Google.Apis.CloudResourceManager.v1.Data;\n\n public partial class AccessManager\n {\n public static Policy AddMember(Policy policy, string role, string member)\n {\n var binding = policy.Bindings.First(x =\u003e x.Role == role);\n binding.Members.Add(member);\n return policy;\n }\n }\n\n### Go\n\n\nTo learn how to install and use the client library for IAM, see\n[IAM client libraries](/iam/docs/reference/libraries).\n\n\nFor more information, see the\n[IAM Go API\nreference documentation](https://godoc.org/google.golang.org/genproto/googleapis/iam/admin/v1).\n\n\nTo authenticate to IAM, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n import (\n \t\"fmt\"\n \t\"io\"\n\n \t\"google.golang.org/api/iam/v1\"\n )\n\n // addMember adds a member to a role binding.\n func addMember(w io.Writer, policy *iam.Policy, role, member string) {\n \tfor _, binding := range policy.Bindings {\n \t\tif binding.Role != role {\n \t\t\tcontinue\n \t\t}\n \t\tfor _, m := range binding.Members {\n \t\t\tif m != member {\n \t\t\t\tcontinue\n \t\t\t}\n \t\t\tfmt.Fprintf(w, \"Role %q found. Member already exists.\\n\", role)\n \t\t\treturn\n \t\t}\n \t\tbinding.Members = append(binding.Members, member)\n \t\tfmt.Fprintf(w, \"Role %q found. Member added.\\n\", role)\n \t\treturn\n \t}\n \tfmt.Fprintf(w, \"Role %q not found. Member not added.\\n\", role)\n }\n\n### Java\n\n\nTo learn how to install and use the client library for IAM, see\n[IAM client libraries](/iam/docs/reference/libraries).\n\n\nFor more information, see the\n[IAM Java API\nreference documentation](https://developers.google.com/api-client-library/java/apis/iam/v1).\n\n\nTo authenticate to IAM, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n import com.google.iam.v1.https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Binding.html;\n import com.google.iam.v1.https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html;\n import java.util.ArrayList;\n import java.util.List;\n\n public class AddMember {\n public static void main(String[] args) {\n // TODO(developer): Replace the variables before running the sample.\n // TODO: Replace with your policy, GetPolicy.getPolicy(projectId, serviceAccount).\n https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html policy = https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html.newBuilder().build();\n // TODO: Replace with your role.\n String role = \"roles/existing-role\";\n // TODO: Replace with your principal.\n // For examples, see https://cloud.google.com/iam/docs/principal-identifiers\n String member = \"principal-id\";\n\n addMember(policy, role, member);\n }\n\n // Adds a principal to a pre-existing role.\n public static https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html addMember(https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html policy, String role, String member) {\n List\u003cBinding\u003e newBindingsList = new ArrayList\u003c\u003e();\n\n for (https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Binding.html b : policy.https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html#com_google_iam_v1_Policy_getBindingsList__()) {\n if (b.getRole().equals(role)) {\n newBindingsList.add(b.toBuilder().https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Binding.Builder.html#com_google_iam_v1_Binding_Builder_addMembers_java_lang_String_(member).build());\n } else {\n newBindingsList.add(b);\n }\n }\n\n // Update the policy to add the principal.\n https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html updatedPolicy = policy.https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html#com_google_iam_v1_Policy_toBuilder__()\n .https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.Builder.html#com_google_iam_v1_Policy_Builder_clearBindings__()\n .https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.Builder.html#com_google_iam_v1_Policy_Builder_addAllBindings_java_lang_Iterable___extends_com_google_iam_v1_Binding__(newBindingsList)\n .build();\n\n System.out.println(\"Added principal: \" + updatedPolicy.https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/com.google.iam.v1.Policy.html#com_google_iam_v1_Policy_getBindingsList__());\n\n return updatedPolicy;\n }\n }\n\n### Python\n\n\nTo learn how to install and use the client library for IAM, see\n[IAM client libraries](/iam/docs/reference/libraries).\n\n\nFor more information, see the\n[IAM Python API\nreference documentation](https://developers.google.com/api-client-library/python/apis/iam/v1).\n\n\nTo authenticate to IAM, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n from google.iam.v1 import policy_pb2\n from snippets.get_policy import get_project_policy\n from snippets.set_policy import set_project_policy\n\n\n def modify_policy_add_principal(\n project_id: str, role: str, principal: str\n ) -\u003e policy_pb2.Policy:\n \"\"\"Add a principal to certain role in project policy.\n\n project_id: ID or number of the Google Cloud project you want to use.\n role: role to which principal need to be added.\n principal: The principal requesting access.\n\n For principal ID formats, see https://cloud.google.com/iam/docs/principal-identifiers\n \"\"\"\n policy = get_project_policy(project_id)\n\n for bind in policy.bindings:\n if bind.role == role:\n bind.members.append(principal)\n break\n\n return set_project_policy(project_id, policy)\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=iam)."]]