ipfs

README

go-ipfs

What is IPFS?

IPFS is a global, versioned, peer-to-peer filesystem. It combines good ideas from previous systems such as Git, BitTorrent, Kademlia, SFS, and the Web. It is like a single BitTorrent swarm, exchanging git objects. IPFS provides an interface as simple as the HTTP web, but with permanence built-in. You can also mount the world at /ipfs.

For more info see: https://docs.ipfs.io/introduction/overview/

Before opening an issue, consider using one of the following locations to ensure you are opening your thread in the right place:

• go-ipfs implementation bugs in this repo.
• Documentation issues in ipfs/docs issues.
• IPFS design in ipfs/specs issues.
• Exploration of new ideas in ipfs/notes issues.
• Ask questions and meet the rest of the community at the IPFS Forum.
• Or chat with us.

Next milestones

Milestones on Github

Table of Contents

• Security Issues
• Install
  • System Requirements
  • Docker
  • Native Linux package managers
    • ArchLinux
    • Nix
    • Solus
    • openSUSE
  • Other package managers
    • Guix
    • Snap
  • macOS package managers
    • MacPorts
    • Nix
    • Homebrew
  • Windows package managers
    • Chocolatey
    • Scoop
  • Install prebuilt binaries
  • Build from Source
    • Install Go
    • Download and Compile IPFS
    • Cross Compiling
    • OpenSSL
    • Troubleshooting
  • Updating go-ipfs
• Getting Started
  • Some things to try
  • Usage
  • Troubleshooting
• Packages
• Development
  • Map of go-ipfs Subsystems
  • CLI, HTTP-API, Architecture Diagram
  • Testing
  • Development Dependencies
  • Developer Notes
• Contributing
• License

Security Issues

The IPFS protocol and its implementations are still in heavy development. This means that there may be problems in our protocols, or there may be mistakes in our implementations. And -- though IPFS is not production-ready yet -- many people are already running nodes in their machines. So we take security vulnerabilities very seriously. If you discover a security issue, please bring it to our attention right away!

If you find a vulnerability that may affect live deployments -- for example, by exposing a remote execution exploit -- please send your report privately to security@ipfs.io. Please DO NOT file a public issue.

If the issue is a protocol weakness that cannot be immediately exploited or something not yet deployed, just discuss it openly.

Install

The canonical download instructions for IPFS are over at: https://docs.ipfs.io/guides/guides/install/. It is highly recommended you follow those instructions if you are not interested in working on IPFS development.

System Requirements

IPFS can run on most Linux, macOS, and Windows systems. We recommend running it on a machine with at least 2 GB of RAM and 2 CPU cores (go-ipfs is highly parallel). On systems with less memory, it may not be completely stable.

If your system is resource-constrained, we recommend:

1. Installing OpenSSL and rebuilding go-ipfs manually with make build GOTAGS=openssl. See the download and compile section for more information on compiling go-ipfs.
2. Initializing your daemon with ipfs init --profile=lowpower

Docker

More info on how to run go-ipfs inside docker can be found here.

Native Linux package managers

• Arch Linux
• Nix
• Solus
• openSUSE

ArchLinux

# pacman -Syu go-ipfs

Nix

With the purely functional package manager Nix you can install go-ipfs like this:

$ nix-env -i ipfs

You can also install the Package by using its attribute name, which is also ipfs.

Solus

In solus, go-ipfs is available in the main repository as go-ipfs.

$ sudo eopkg install go-ipfs

You can also install it through the Solus software center.

openSUSE

Community Package for go-ipfs

Other package managers

• Guix
• Snap

Guix

GNU's functional package manager, Guix, also provides a go-ipfs package:

$ guix package -i go-ipfs

Snap

With snap, in any of the supported Linux distributions:

$ sudo snap install ipfs

The snap sets IPFS_PATH to SNAP_USER_COMMON, which is usually ~/snap/ipfs/common. If you want to use ~/.ipfs instead, you can bind-mount it to ~/snap/ipfs/common like this:

sudo mount --bind ~/.ipfs ~/snap/ipfs/common

If you want something more sophisticated to escape the snap confinement, we recommend using a different method to install go-ipfs so that it is not subject to snap confinement.

macOS package managers

• MacPorts
• Nix
• Homebrew

MacPorts

The package ipfs currently points to go-ipfs and is being maintained.

$ sudo port install ipfs

Nix

In macOS you can use the purely functional package manager Nix:

$ nix-env -i ipfs

You can also install the Package by using its attribute name, which is also ipfs.

Homebrew

A Homebrew formula ipfs is maintained too.

$ brew install --formula ipfs

Windows package managers

• Chocolatey
• Scoop

Chocolatey

PS> choco install ipfs

Scoop

Scoop provides go-ipfs in its 'extras' bucket.

PS> scoop bucket add extras
PS> scoop install go-ipfs

Install prebuilt binaries

From there:

• Click the blue "Download go-ipfs" on the right side of the page.
• Open/extract the archive.
• Move ipfs to your path (install.sh can do it for you).

You can also download go-ipfs from this project's GitHub releases page if you are unable to access dist.ipfs.io:

GitHub releases

Build from Source

go-ipfs's build system requires Go and some standard POSIX build tools:

• GNU make
• Git
• GCC (or some other go compatible C Compiler) (optional)

To build without GCC, build with CGO_ENABLED=0 (e.g., make build CGO_ENABLED=0).

Install Go

If you need to update: Download latest version of Go.

You'll need to add Go's bin directories to your $PATH environment variable e.g., by adding these lines to your /etc/profile (for a system-wide installation) or $HOME/.profile:

export PATH=$PATH:/usr/local/go/bin
export PATH=$PATH:$GOPATH/bin

(If you run into trouble, see the Go install instructions).

Download and Compile IPFS

$ git clone https://github.com/ipfs/go-ipfs.git

$ cd go-ipfs
$ make install

Alternatively, you can run make build to build the go-ipfs binary (storing it in cmd/ipfs/ipfs) without installing it.

NOTE: If you get an error along the lines of "fatal error: stdlib.h: No such file or directory", you're missing a C compiler. Either re-run make with CGO_ENABLED=0 or install GCC.

Cross Compiling

Compiling for a different platform is as simple as running:

make build GOOS=myTargetOS GOARCH=myTargetArchitecture

OpenSSL

To build go-ipfs with OpenSSL support, append GOTAGS=openssl to your make invocation. Building with OpenSSL should significantly reduce the background CPU usage on nodes that frequently make or receive new connections.

Note: OpenSSL requires CGO support and, by default, CGO is disabled when cross-compiling. To cross-compile with OpenSSL support, you must:

1. Install a compiler toolchain for the target platform.
2. Set the CGO_ENABLED=1 environment variable.

Troubleshooting

• Separate instructions are available for building on Windows.
• git is required in order for go get to fetch all dependencies.
• Package managers often contain out-of-date golang packages. Ensure that go version reports at least 1.10. See above for how to install go.
• If you are interested in development, please install the development dependencies as well.
• WARNING: Older versions of OSX FUSE (for Mac OS X) can cause kernel panics when mounting!- We strongly recommend you use the latest version of OSX FUSE. (See https://github.com/ipfs/go-ipfs/issues/177)
• Read docs/fuse.md for more details on setting up FUSE (so that you can mount the filesystem).
• Shell command completions can be generated with one of the ipfs commands completion subcommands. Read docs/command-completion.md to learn more.
• See the misc folder for how to connect IPFS to systemd or whatever init system your distro uses.

Updating go-ipfs

Using ipfs-update

IPFS has an updating tool that can be accessed through ipfs update. The tool is not installed alongside IPFS in order to keep that logic independent of the main codebase. To install ipfs update, download it here.

Downloading IPFS builds using IPFS

List the available versions of go-ipfs:

$ ipfs cat /ipns/dist.ipfs.io/go-ipfs/versions

Then, to view available builds for a version from the previous command ($VERSION):

$ ipfs ls /ipns/dist.ipfs.io/go-ipfs/$VERSION

To download a given build of a version:

$ ipfs get /ipns/dist.ipfs.io/go-ipfs/$VERSION/go-ipfs_$VERSION_darwin-386.tar.gz # darwin 32-bit build
$ ipfs get /ipns/dist.ipfs.io/go-ipfs/$VERSION/go-ipfs_$VERSION_darwin-amd64.tar.gz # darwin 64-bit build
$ ipfs get /ipns/dist.ipfs.io/go-ipfs/$VERSION/go-ipfs_$VERSION_freebsd-amd64.tar.gz # freebsd 64-bit build
$ ipfs get /ipns/dist.ipfs.io/go-ipfs/$VERSION/go-ipfs_$VERSION_linux-386.tar.gz # linux 32-bit build
$ ipfs get /ipns/dist.ipfs.io/go-ipfs/$VERSION/go-ipfs_$VERSION_linux-amd64.tar.gz # linux 64-bit build
$ ipfs get /ipns/dist.ipfs.io/go-ipfs/$VERSION/go-ipfs_$VERSION_linux-arm.tar.gz # linux arm build
$ ipfs get /ipns/dist.ipfs.io/go-ipfs/$VERSION/go-ipfs_$VERSION_windows-amd64.zip # windows 64-bit build

Getting Started

Usage

To start using IPFS, you must first initialize IPFS's config files on your system, this is done with ipfs init. See ipfs init --help for information on the optional arguments it takes. After initialization is complete, you can use ipfs mount, ipfs add and any of the other commands to explore!

Some things to try

Basic proof of 'ipfs working' locally:

echo "hello world" > hello
ipfs add hello
# This should output a hash string that looks something like:
# QmT78zSuBmuS4z925WZfrqQ1qHaJ56DQaTfyMUF7F8ff5o
ipfs cat <that hash>

Troubleshooting

If you have previously installed IPFS before and you are running into problems getting a newer version to work, try deleting (or backing up somewhere else) your IPFS config directory (~/.ipfs by default) and rerunning ipfs init. This will reinitialize the config file to its defaults and clear out the local datastore of any bad entries.

Please direct general questions and help requests to our forum or our IRC channel (freenode #ipfs).

If you believe you've found a bug, check the issues list and, if you don't see your problem there, either come talk to us on IRC (freenode #ipfs) or file an issue of your own!

Packages

This table is generated using the module package-table with package-table --data=package-list.json.

Listing of the main packages used in the IPFS ecosystem. There are also three specifications worth linking here:

Name	CI/Travis	Coverage	Description
Libp2p
go-libp2p			p2p networking library
go-libp2p-pubsub			pubsub built on libp2p
go-libp2p-kad-dht			dht-backed router
go-libp2p-pubsub-router			pubsub-backed router
Multiformats
go-cid			CID implementation
go-multiaddr			multiaddr implementation
go-multihash			multihash implementation
go-multibase			mulitbase implementation
Files
go-unixfs			the core 'filesystem' logic
go-mfs			a mutable filesystem editor for unixfs
go-ipfs-posinfo			helper datatypes for the filestore
go-ipfs-chunker			file chunkers
Exchange
go-ipfs-exchange-interface			exchange service interface
go-ipfs-exchange-offline			(dummy) offline implementation of the exchange service
go-bitswap			bitswap protocol implementation
go-blockservice			service that plugs a blockstore and an exchange together
Datastores
go-datastore			datastore interfaces, adapters, and basic implementations
go-ipfs-ds-help			datastore utility functions
go-ds-flatfs			a filesystem-based datastore
go-ds-measure			a metric-collecting database adapter
go-ds-leveldb			a leveldb based datastore
go-ds-badger			a badgerdb based datastore
Namesys
go-ipns			IPNS datastructures and validation logic
Repo
go-fs-lock			lockfile management functions
fs-repo-migrations			repo migrations
IPLD
go-block-format			block interfaces and implementations
go-ipfs-blockstore			blockstore interfaces and implementations
go-ipld-format			IPLD interfaces
go-ipld-cbor			IPLD-CBOR implementation
go-ipld-git			IPLD-Git implementation
go-merkledag			IPLD-Merkledag implementation (and then some)
Commands
go-ipfs-cmds			CLI & HTTP commands library
go-ipfs-files			CLI & HTTP commands library
go-ipfs-api			an old, stable shell for the IPFS HTTP API
go-ipfs-http-client			a new, unstable shell for the IPFS HTTP API
interface-go-ipfs-core			core go-ipfs API interface definitions
Metrics & Logging
go-metrics-interface			metrics collection interfaces
go-metrics-prometheus			prometheus-backed metrics collector
go-log			logging framework
Generics/Utils
go-ipfs-routing			routing (content, peer, value) helpers
go-ipfs-util			the kitchen sink
go-ipfs-addr			utility functions for parsing IPFS multiaddrs

For brevity, we've omitted most go-libp2p, go-ipld, and go-multiformats packages. These package tables can be found in their respective project's READMEs:

• go-libp2p
• go-ipld

Development

Some places to get you started on the codebase:

• Main file: ./cmd/ipfs/main.go
• CLI Commands: ./core/commands/
• Bitswap (the data trading engine): go-bitswap
• libp2p
  • libp2p: https://github.com/libp2p/go-libp2p
  • DHT: https://github.com/libp2p/go-libp2p-kad-dht
  • PubSub: https://github.com/libp2p/go-libp2p-pubsub
• IPFS : The Add command demystified

Map of go-ipfs Subsystems

WIP: This is a high-level architecture diagram of the various sub-systems of go-ipfs. To be updated with how they interact. Anyone who has suggestions is welcome to comment here on how we can improve this!

CLI, HTTP-API, Architecture Diagram

Origin

Description: Dotted means "likely going away". The "Legacy" parts are thin wrappers around some commands to translate between the new system and the old system. The grayed-out parts on the "daemon" diagram are there to show that the code is all the same, it's just that we turn some pieces on and some pieces off depending on whether we're running on the client or the server.

Testing

make test

Development Dependencies

If you make changes to the protocol buffers, you will need to install the protoc compiler.

Developer Notes

Find more documentation for developers on docs

Contributing

We ❤️ all our contributors; this project wouldn’t be what it is without you! If you want to help out, please see CONTRIBUTING.md.

This repository falls under the IPFS Code of Conduct.

Please reach out to us in one chat rooms.

License

The go-ipfs project is dual-licensed under Apache 2.0 and MIT terms:

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

Documentation

Overview

IPFS is a global, versioned, peer-to-peer filesystem

Index

• Constants
• Variables
• func GetUserAgentVersion() string
• func SetUserAgentSuffix(suffix string)
• type VersionInfo
  • func GetVersionInfo() *VersionInfo

Constants

const ApiVersion = "/go-ipfs/" + CurrentVersionNumber + "/"

const CurrentVersionNumber = "0.13.1"

CurrentVersionNumber is the current application's version literal

Variables

var CurrentCommit string

CurrentCommit is the current git commit, this is set as a ldflag in the Makefile

Functions

func GetUserAgentVersion

func GetUserAgentVersion() string

GetUserAgentVersion is the libp2p user agent used by go-ipfs.

Note: This will end in `/` when no commit is available. This is expected.

func SetUserAgentSuffix

func SetUserAgentSuffix(suffix string)

Types

type VersionInfo

type VersionInfo struct {
	Version string
	Commit  string
	Repo    string
	System  string
	Golang  string
}

func GetVersionInfo

func GetVersionInfo() *VersionInfo