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git-annex-p2phttp(1) General Commands Manual git-annex-p2phttp(1)

NAME

git-annex-p2phttp - HTTP server for the git-annex API

SYNOPSIS

git-annex p2phttp

DESCRIPTION

This is a HTTP server for the git-annex API. It is the git-annex equivilant of git-http-backend(1), for serving a repository over HTTP with write access for authenticated users.

This does not serve a git repository over HTTP, only the git-annex API.

By default, this serves the git-annex API for the git-annex repository in the current working directory. It can also serve more than one repository, see the --directory parameter.

Typically a remote will have remote.name.url set to a http url as usual, and remote.name.annexUrl set to an annex+http url such as "annex+http://example.com/git-annex/". The annex+http url is served by this server, and uses port 9417 by default.

Note that, when remote.name.url and remote.name.annexUrl contain the same hostname, they are assumed by git-annex to support the same users and passwords. So, git-annex will use the password for the remote.name.url to log into the remote.name.annexUrl.

As well as serving the git-annex HTTP API, this server provides a convenient way to download the content of any key, by using the path "/git-annex/$uuid/$key". For example:


$ curl http://example.com:9417/git-annex/f11773f0-11e1-45b2-9805-06db16768efe/key/SHA256E-s6--5891b5b522d5df086d0ff0b110fbd9d21bb4fc7163af34d08286a2e846f6be03
hello

OPTIONS

Serve each git-annex repository found in immediate subdirectories of a directory.
This option can be provided more than once to serve several directories full of git-annex repositories.
New git-annex repositories can be added to the directory, and will be noticed and served immediately. There is no need to restart the server.
When a git-annex repository is removed from the directory, the server will stop serving it as well. This may not be immediate, as some files in the deleted repository may still be open.
This or annex.jobs must be set to configure the number of worker threads, per repository served, that serve connections to the webserver.
Since the webserver itself also uses one of these threads, this needs to be set to 2 or more.
A good choice is often one worker per CPU core: --jobs=cpus
When serving a repository that is configured to act as a proxy for some of its remotes, this is the maximum number of idle connections to keep open to proxied remotes.
The default is 1.
When serving a repository that is a gateway for a cluster, this is the number of concurrent jobs to use to access nodes of the cluster, per connection to the webserver.
The default is 1.
A good choice for this will be a balance between the number of nodes in the cluster and the value of --jobs.
For example, if the cluster has 4 nodes, and --jobs=4, using --clusterjobs=4 will make all nodes in the cluster be accessed concurrently, which is often optimal. But around 20 cores can be needed when the webserver is busy.
Port to listen on. The default is port 9417, which is the default port used for an annex+http or annex+https url.
It is not recommended to run this command as root in order to use a low port like port 80. It will not drop permissions when run as root.
What address to bind to. The default is to bind to all addresses.
TLS certificate file to use. Combining this with --privatekeyfile makes the server use HTTPS.
TLS private key file to use. Combining this with --certfile makes the server use HTTPS.
TLS chain file to use. This option can be repeated any number of times.
Allows users to be authenticated with a username and password. For security, this only allows authentication when the user connects over HTTPS.
To configure the passwords, set environment variables like GIT_ANNEX_P2PHTTP_PASSWORD_alice=foo123
The permissions of users can also be configured by setting environment variables like GIT_ANNEX_P2PHTTP_PERMISSIONS_alice=readonly. The value can be either "readonly" or "appendonly". When this is not set, the default is to give the user full read+write+remove access.
Like --authenv, but allows authentication when the user connects over HTTP. This is not secure, since HTTP basic authentication is not encrypted.
Allows unauthenticated users to read the repository, but not make modifications to it.
This can be combined with --authenv or --authenv-http to allow anonymous readonly access, and authenticated write access.
Allows unauthenticated users to read the repository, and store data in it, but not remove data from it.
This can be combined with --authenv or --authenv-http to allow anonymous appendonly access, and authenticated remove access.
By default, when --unauth-readonly or --unauth-appendonly is used, unauthenticated users are allowed to lock content in the repository. This option prevents that.
Locking content prevents it from being dropped from the repository so it may be that an unauthenticated user abuses that, and this option can be used in such a situation.
Note that enabling this option will prevent unauthenticated users from dropping content from their other remotes in some cases.
Gives unauthenticated users full read+write+remove access to the repository.
Please think carefully before enabling this option.

SEE ALSO

git-annex(1)

git-http-backend(1)

git-annex-shell(1)

git-annex-updateproxy(1)

git-annex-initcluster(1)

git-annex-updatecluster(1)

<https://git-annex.branchable.com/design/p2p_protocol_over_http/>

AUTHOR

Joey Hess <id@joeyh.name>

<http://git-annex.branchable.com/>