Top 6 C++ Cloud Storage Projects

Ceph

34 13,233 10.0 C++

Ceph is a distributed object, block, and file storage platform

Project mention: First time user sturggles | /r/ceph | 2023-06-24

curl --silent --remote-name --location https://github.com/ceph/ceph/raw/octopus/src/cephadm/cephadmchmod a+x cephadm./cephadm bootstrap --mon-ip 192.168.1.41

s3fs-fuse

57 8,065 9.0 C++

FUSE-based file system backed by Amazon S3

Project mention: Is Posix Outdated? | news.ycombinator.com | 2023-10-19

The author needs to ask themselves: in this cloud technology stack, is there POSIX involved somewhere lower down, where I can't access it? The answer is, of course, "yes". The sort of cloud storage systems described all run on top of POSIX APIs. They provide convenience (cost efficiency is more debatable) compared to the POSIX alternative, but that's because they exist at an entirely different conceptual layer (hence the presence of POSIX anyway, just buried).
Your point about surfacing a POSIX that's actually there but hidden and thus visible to low-level Amazon employees building the S3 service which makes it invisible to S3 end customers is true but isn't the the point of the article. The author is saying there are motivations for a POSIX-like api visible also the end user.
So your explanation of stack looks like 2 layers: POSIX api <-- AWS S3 built on top of that
Author's essay is actually talking about 3 layers: POSIX <-- AWS S3 <-- POSIX
That's why the blog post has the following links to POSIX-on-top-of-S3-objects :
https://github.com/s3fs-fuse/s3fs-fuse
https://github.com/kahing/goofys
https://www.cuno.io/

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
cryfs

30 1,933 5.8 C++

Cryptographic filesystem for the cloud

Project mention: Syncthing: Untrusted Device Encryption | news.ycombinator.com | 2023-12-07

I know that cryfs[1] is resilient to at least the first of these, and possibly the second as well. I don't know if cryfs allows to modify the base directory while the filesystem is online, if it does then it might already be a better solution for syncthing, if you only care about Linux.
On the flip side syncthing could incorporate cryfs's base directory format instead of their home-grown one.
[1] https://www.cryfs.org/

sdk

2 1,313 10.0 C++

MEGA C++ SDK (by meganz)
DAR

5 124 8.9 C++

DAR - Disk ARchive

Project mention: What's a really niche tool you use that you can't live without? | /r/DataHoarder | 2023-05-09

dar is the only tool I know of that supports incremental backups to untrusted remote storage. All the remote sees are giant encrypted blobs.

Sending-sensor-data-from-ESP32-to-AWS-DynamoDB-cloud-storage

1 2 10.0 C++

Sensor data from ESP-32 can be send to AWS and stored in AWS DynamoDB cloud storage along with the MAC address of the ESP-32 and timestamp(when data is received.)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).