simple_object_storage Template Registry
Introduction
Simple Object Storage is a very simple C++ webserver which provide a store of binary objects (the objects can be large), which are available over http.
Read access is public. Write access is controlled by tokens.
- Objects are access via a label and tag, or via their hash. For example:
wget http://localhost:8123/object/squashkiwi:latestwget http://localhost:8123/object/4528400792837739857
- The hash is calculated using
uint64_t hash_file(const std::string &path);in hash.hpp. - You can retrieve the hash for a given labvel and tag with, e.g.:
curl http://localhost:8123/hash/squashkiwi:latest
- you can get a full list of {label:tag,hash} entries (one tag per entry) with:
curl http://localhost:8123/dir
- get all metadata for a tag:
curl http://localhost:8123/meta/squashkiwi:latest
- a simple welcome page is served at
/index.htmlfor those browsing to the site. - to upload a file (via http put)
curl -T object_file http://localhost:8123/upload?token="WRITE_TOKEN"\&labeltag="LABEL:TAG"\&filename="FILENAME"- the object_file is uploaded, hashed, added to the registry (if that hash doesn't already exist), and {label:tag,hash} is added to the directory index.
- to delete a label/tag (object remains):
curl http://localhost:8123/deletetag?token="WRITE_TOKEN"\&labeltag="LABEL:TAG"
- to delete an object (and all tags on that object):
curl http://localhost:8123/deleteobject?token="WRITE_TOKEN"\&hash="HASH"
- add a tag to an existing object:
curl http://localhost:8123/appendtag?token="WRITE_TOKEN"\&hash="HASH"\&labeltag="LABEL:TAG"
- the server is configured via a configuration file which allows setting:
- the list of write access tokens
- the location for the object store (path on disk)
The C++ program is written so that it only uses standard libraries, and is built as a static executable with musl not glibc.
The C++ program is built with cmake.
A Dockerfile is included for conveniently running the C++ program inside docker.