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@joshuarobinson
Created November 11, 2021 14:12
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# AWS-CLI example to add custom-metadata to an existing object using the zero-copy API
aws --endpoint-url $ENDPOINT s3api copy-object --bucket $BUCKET --copy-source $BUCKET/$KEY --key $KEY --metadata '{"custom-thing":"123456"}' --metadata-directive REPLACE
# Golang code to get the contents of an object, very similar to Boto3
input := &s3.GetObjectInput{Bucket: bucketname, Key: &k}
result, err := input_svc.GetObject(input)
# Boto3 reference for CopyObject, which is a zero-copy operation on FlashBlade
https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/s3.html#S3.Client.copy_object
# Golang code that puts object and adds key to Kafka topic to alert downstream consumers
put_cfg := &s3.PutObjectInput{
Body: bytes.NewReader(val_blob),
Bucket: &offloadBucket,
Key: key,
}
_, err := offload_svc.PutObject(put_cfg)
reportAWSError(err)
path := "s3://" + offloadBucket + "/" + *key
val_blob = []byte(path)
if stagingTopic != "" {
_ = kafkaProducer.Produce(&kafka.Message{
TopicPartition: kafka.TopicPartition{Topic: &stagingTopic, Partition: kafka.PartitionAny},
Value: val_blob,
}, delivery_chan)
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