NAME
    gcloud pubsub topics update - updates an existing Cloud Pub/Sub topic

SYNOPSIS
    gcloud pubsub topics update TOPIC [--update-labels=[KEY=VALUE,...]]
        [--clear-ingestion-data-source-settings
          | --ingestion-log-severity=INGESTION_LOG_SEVERITY
          [--cloud-storage-ingestion-bucket=CLOUD_STORAGE_INGESTION_BUCKET
          --cloud-storage-ingestion-input-format=INPUT_FORMAT
          : --cloud-storage-ingestion-text-delimiter=CLOUD_STORAGE_INGESTION_TEXT_DELIMITER --cloud-storage-ingestion-minimum-object-create-time=CLOUD_STORAGE_INGESTION_MINIMUM_OBJECT_CREATE_TIME --cloud-storage-ingestion-match-glob=CLOUD_STORAGE_INGESTION_MATCH_GLOB] | --kinesis-ingestion-consumer-arn=KINESIS_INGESTION_CONSUMER_ARN --kinesis-ingestion-role-arn=KINESIS_INGESTION_ROLE_ARN --kinesis-ingestion-service-account=KINESIS_INGESTION_SERVICE_ACCOUNT --kinesis-ingestion-stream-arn=KINESIS_INGESTION_STREAM_ARN]
        [--clear-labels | --remove-labels=[KEY,...]]
        [--clear-message-retention-duration
          | --message-retention-duration=MESSAGE_RETENTION_DURATION]
        [--clear-schema-settings
          | [--message-encoding=ENCODING (--schema=SCHEMA
          : --schema-project=SCHEMA_PROJECT)
          : --first-revision-id=FIRST_REVISION_ID
          --last-revision-id=LAST_REVISION_ID]]
        [--recompute-message-storage-policy
          | [--message-storage-policy-allowed-regions=[REGION,...]
          : --message-storage-policy-enforce-in-transit]]
        [--topic-encryption-key=TOPIC_ENCRYPTION_KEY
          : --topic-encryption-key-keyring=TOPIC_ENCRYPTION_KEY_KEYRING
          --topic-encryption-key-location=TOPIC_ENCRYPTION_KEY_LOCATION
          --topic-encryption-key-project=TOPIC_ENCRYPTION_KEY_PROJECT]
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    Updates an existing Cloud Pub/Sub topic.

EXAMPLES
    To update existing labels on a Cloud Pub/Sub topic, run:

        $ gcloud pubsub topics update mytopic \
          --update-labels=KEY1=VAL1,KEY2=VAL2

    To clear all labels on a Cloud Pub/Sub topic, run:

        $ gcloud pubsub topics update mytopic --clear-labels

    To remove an existing label on a Cloud Pub/Sub topic, run:

        $ gcloud pubsub topics update mytopic --remove-labels=KEY1,KEY2

    To enable customer-managed encryption for a Cloud Pub/Sub topic by
    protecting message data with a Cloud KMS CryptoKey, run:

        $ gcloud pubsub topics update mytopic \
          --topic-encryption-key=projects/PROJECT_ID/locations/\
        KMS_LOCATION/keyRings/KEYRING/cryptoKeys/KEY

    To enable or update retention on a Cloud Pub/Sub topic, run:

        $ gcloud pubsub topics update mytopic \
          --message-retention-duration=MESSAGE_RETENTION_DURATION

    To disable retention on a Cloud Pub/Sub topic, run:

        $ gcloud pubsub topics update mytopic \
          --clear-message-retention-duration

    To update a Cloud Pub/Sub topic's message storage policy, run:

        $ gcloud pubsub topics update mytopic \
          --message-storage-policy-allowed-regions=some-cloud-region1,\
        some-cloud-region2

    To recompute a Cloud Pub/Sub topic's message storage policy based on your
    organization's "Resource Location Restriction" policy, run:

        $ gcloud pubsub topics update mytopic \
          --recompute-message-storage-policy

    To enforce both at-rest and in-transit guarantees for messages published to
    the topic, run:

        $ gcloud pubsub topics update mytopic \
          --message-storage-policy-allowed-regions=some-cloud-region1,\
        some-cloud-region2 --message-storage-policy-enforce-in-transit

POSITIONAL ARGUMENTS
     Topic resource - Name of the topic to update. This represents a Cloud
     resource. (NOTE) Some attributes are not given arguments in this group but
     can be set in other ways.

     To set the project attribute:
      ◆ provide the argument topic on the command line with a fully specified
        name;
      ◆ provide the argument --project on the command line;
      ◆ set the property core/project.

     This must be specified.

       TOPIC
          ID of the topic or fully qualified identifier for the topic.

          To set the topic attribute:
          ▸ provide the argument topic on the command line.

FLAGS
     --update-labels=[KEY=VALUE,...]
        List of label KEY=VALUE pairs to update. If a label exists, its value
        is modified. Otherwise, a new label is created.

        Keys must start with a lowercase character and contain only hyphens
        (-), underscores (_), lowercase characters, and numbers. Values must
        contain only hyphens (-), underscores (_), lowercase characters, and
        numbers.

     Specify either --clear-ingestion-data-source-settings or a new ingestion
     source.

     At most one of these can be specified:

       --clear-ingestion-data-source-settings
          If set, clear the Ingestion Data Source Settings from the topic. Use
          --no-clear-ingestion-data-source-settings to disable this flag.

       Following flags are for specifying the data source settings for an
       import topic

       When updating IngestionDataSourceSettings flags, all
       IngestionDataSourceSettings flags must be specified. Otherwise, any
       omitted IngestionDataSourceSettings flags revert to their default value.

         --ingestion-log-severity=INGESTION_LOG_SEVERITY
            Log severity to use for ingestion.

         At most one of these can be specified:

           Flags that specify settings for an import topic from Cloud Storage

           When updating CloudStorage Source flags, all CloudStorage Source
           flags must be specified. Otherwise, any omitted CloudStorage Source
           flags revert to their default value.

             --cloud-storage-ingestion-bucket=CLOUD_STORAGE_INGESTION_BUCKET
                Cloud Storage bucket from which to ingest data.

                This flag argument must be specified if any of the other
                arguments in this group are specified.

             --cloud-storage-ingestion-input-format=INPUT_FORMAT
                Format of the data in the Cloud Storage bucket. INPUT_FORMAT
                must be one of: text, avro, pubsub_avro.

                This flag argument must be specified if any of the other
                arguments in this group are specified.

             --cloud-storage-ingestion-text-delimiter=CLOUD_STORAGE_INGESTION_TEXT_DELIMITER
                Delimiter to use with text format when partitioning the object.

             --cloud-storage-ingestion-minimum-object-create-time=CLOUD_STORAGE_INGESTION_MINIMUM_OBJECT_CREATE_TIME
                Only Cloud Storage objects with a larger or equal creation
                timestamp will be ingested.

             --cloud-storage-ingestion-match-glob=CLOUD_STORAGE_INGESTION_MATCH_GLOB
                Glob pattern used to match Cloud Storage objects that will be
                ingested. If unset, all objects will be ingested.

           Flags that specify settings for an import topic from Amazon Web
           Services (AWS) Kinesis Data Streams

           When updating AWSKinesis Source flags, all AWSKinesis Source flags
           must be specified. Otherwise, any omitted AWSKinesis Source flags
           revert to their default value.

             --kinesis-ingestion-consumer-arn=KINESIS_INGESTION_CONSUMER_ARN
                Kinesis data streams consumer Amazon Resource Name (ARN) to use
                for ingestion.

                This flag argument must be specified if any of the other
                arguments in this group are specified.

             --kinesis-ingestion-role-arn=KINESIS_INGESTION_ROLE_ARN
                AWS role ARN to be used for Federated Identity authentication
                with Kinesis.

                This flag argument must be specified if any of the other
                arguments in this group are specified.

             --kinesis-ingestion-service-account=KINESIS_INGESTION_SERVICE_ACCOUNT
                Service account to be used for Federated Identity
                authentication with Kinesis.

                This flag argument must be specified if any of the other
                arguments in this group are specified.

             --kinesis-ingestion-stream-arn=KINESIS_INGESTION_STREAM_ARN
                Kinesis data stream ARN from which to ingest data.

                This flag argument must be specified if any of the other
                arguments in this group are specified.

     At most one of these can be specified:

       --clear-labels
          Remove all labels. If --update-labels is also specified then
          --clear-labels is applied first.

          For example, to remove all labels:

              $ gcloud pubsub topics update --clear-labels

          To remove all existing labels and create two new labels, foo and baz:

              $ gcloud pubsub topics update --clear-labels \
                --update-labels foo=bar,baz=qux

       --remove-labels=[KEY,...]
          List of label keys to remove. If a label does not exist it is
          silently ignored. If --update-labels is also specified then
          --update-labels is applied first.

     At most one of these can be specified:

       --clear-message-retention-duration
          If set, clear the message retention duration from the topic. Use
          --no-clear-message-retention-duration to disable this flag.

       --message-retention-duration=MESSAGE_RETENTION_DURATION
          Indicates the minimum duration to retain a message after it is
          published to the topic. If this field is set, messages published to
          the topic in the last MESSAGE_RETENTION_DURATION are always available
          to subscribers. For instance, it allows any attached subscription to
          seek to a timestamp that is up to MESSAGE_RETENTION_DURATION in the
          past. If this field is not set, message retention is controlled by
          settings on individual subscriptions. The minimum is 10 minutes and
          the maximum is 31 days. Valid values are strings of the form
          INTEGER[UNIT], where UNIT is one of "s", "m", "h", and "d" for
          seconds, minutes, hours, and days, respectively. If the unit is
          omitted, seconds is assumed.

     At most one of these can be specified:

       --clear-schema-settings
          If set, clear the Schema Settings from the topic. Use
          --no-clear-schema-settings to disable this flag.

       Schema settings. The schema that messages published to this topic must
       conform to and the expected message encoding.

       When updating SchemaSettings flags, all SchemaSettings flags must be
       specified. Otherwise, any omitted SchemaSettings flags revert to their
       default value.

         --message-encoding=ENCODING
            The encoding of messages validated against the schema. ENCODING
            must be one of: json, binary.

            This flag argument must be specified if any of the other arguments
            in this group are specified.

         --first-revision-id=FIRST_REVISION_ID
            The id of the oldest revision allowed for the specified schema.

         --last-revision-id=LAST_REVISION_ID
            The id of the most recent revision allowed for the specified schema

         Schema resource - Name of the schema that messages published to this
         topic must conform to. The arguments in this group can be used to
         specify the attributes of this resource.

         This must be specified.

           --schema=SCHEMA
              ID of the schema or fully qualified identifier for the schema.

              To set the schema attribute:
              ◇ provide the argument --schema on the command line.

              This flag argument must be specified if any of the other
              arguments in this group are specified.

           --schema-project=SCHEMA_PROJECT
              Project ID of the Google Cloud project for the schema.

              To set the project attribute:
              ◇ provide the argument --schema on the command line with a
                fully specified name;
              ◇ provide the argument --schema-project on the command line;
              ◇ provide the argument --project on the command line;
              ◇ set the property core/project.

     Message storage policy options.

     At most one of these can be specified:

       --recompute-message-storage-policy
          If given, Pub/Sub recomputes the regions where messages can be stored
          at rest, based on your organization's "Resource Location Restriction"
          policy.

       Options for explicitly specifying the message storage policy
       (https://cloud.google.com/pubsub/docs/resource-location-restriction) for
       a topic.

       When updating MessageStoragePolicy flags, all MessageStoragePolicy flags
       must be specified. Otherwise, any omitted MessageStoragePolicy flags
       revert to their default value. These fields can be set only if the
       --recompute-message-storage-policy flag is not set.

         --message-storage-policy-allowed-regions=[REGION,...]
            A list of one or more Cloud regions where messages are allowed to
            be stored at rest.

            This flag argument must be specified if any of the other arguments
            in this group are specified.

         --message-storage-policy-enforce-in-transit
            Whether or not to enforce in-transit guarantees for this topic
            using the allowed regions. This ensures that publishing, pulling,
            and push delivery are only handled in allowed Cloud regions.

     Key resource - The Cloud KMS (Key Management Service) cryptokey that will
     be used to protect the topic. The specified Cloud KMS key should have
     purpose set to "ENCRYPT_DECRYPT". The service account,
     "service-${CONSUMER_PROJECT_NUMBER}@gcp-sa-pubsub.iam.gserviceaccount.com"
     requires the IAM cryptoKeyEncrypterDecrypter role for the given Cloud KMS
     key. CONSUMER_PROJECT_NUMBER is the project number of the project that is
     the parent of the topic being updated. The arguments in this group can be
     used to specify the attributes of this resource.

       --topic-encryption-key=TOPIC_ENCRYPTION_KEY
          ID of the key or fully qualified identifier for the key.

          To set the kms-key attribute:
          ▸ provide the argument --topic-encryption-key on the command line.

          This flag argument must be specified if any of the other arguments in
          this group are specified.

       --topic-encryption-key-keyring=TOPIC_ENCRYPTION_KEY_KEYRING
          The KMS keyring of the key.

          To set the kms-keyring attribute:
          ▸ provide the argument --topic-encryption-key on the command line
            with a fully specified name;
          ▸ provide the argument --topic-encryption-key-keyring on the
            command line.

       --topic-encryption-key-location=TOPIC_ENCRYPTION_KEY_LOCATION
          The Google Cloud location for the key.

          To set the kms-location attribute:
          ▸ provide the argument --topic-encryption-key on the command line
            with a fully specified name;
          ▸ provide the argument --topic-encryption-key-location on the
            command line.

       --topic-encryption-key-project=TOPIC_ENCRYPTION_KEY_PROJECT
          The Google Cloud project for the key.

          To set the kms-project attribute:
          ▸ provide the argument --topic-encryption-key on the command line
            with a fully specified name;
          ▸ provide the argument --topic-encryption-key-project on the
            command line;
          ▸ set the property core/project.

GCLOUD WIDE FLAGS
    These flags are available to all commands: --access-token-file, --account,
    --billing-project, --configuration, --flags-file, --flatten, --format,
    --help, --impersonate-service-account, --log-http, --project, --quiet,
    --trace-token, --user-output-enabled, --verbosity.

    Run $ gcloud help for details.

NOTES
    These variants are also available:

        $ gcloud alpha pubsub topics update

        $ gcloud beta pubsub topics update

