183 lines
5.3 KiB
ReStructuredText
183 lines
5.3 KiB
ReStructuredText
.. _howtoget:
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How to get Tezos
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================
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In this How To we explain how to get up-to-date binaries to run Tezos
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for each network.
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You can either use the docker images, which is easier, or build from
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sources.
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Docker images
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-------------
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The recommended way for running an up-to-date Tezos node is to use the
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docker images that are automatically generated from the GitLab
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repository and published on `DockerHub
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<https://hub.docker.com/r/tezos/tezos/>`_.
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The script ``alphanet.sh`` is provided to help download the right
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image for each network and run a simple node.
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Its only requirement is a working installation of `Docker
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<https://www.docker.com/>`__ and docker compose on a machine with
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architecture **x86_64**.
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Although we only officially support Linux, the script has been tested
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with success in the past on windows/mac/linux.
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The same script can be used to run Alphanet or Zeronet, it suffices to
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rename it, it downloads a different image based on its name.
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For example, to run Alphanet:
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::
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wget https://gitlab.com/tezos/tezos/raw/master/scripts/alphanet.sh
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chmod +x alphanet.sh
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Alternatively, to run Zeronet:
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::
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wget -O zeronet.sh https://gitlab.com/tezos/tezos/raw/master/scripts/alphanet.sh
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chmod +x zeronet.sh
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In the following we assume you are running Alphanet.
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You are now one step away from a working node:
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::
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./alphanet.sh start
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This will download the right docker image for your chosen network,
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launch 3 docker containers running the node, the baker and the
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endorser.
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The first launch might take a few minutes to download the
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docker images and synchronize the chain.
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Every call to ``alphanet.sh`` will check for updates of the node and
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will fail if your node is not up-to-date. For updating the node, simply
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run:
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::
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./alphanet.sh restart
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If you prefer to temporarily disable automatic updates, you just have to
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set an environment variable:
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::
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export TEZOS_ALPHANET_DO_NOT_PULL=yes
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See ``./alphanet.sh --help`` for more informations about the
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script. In particular see ``./alphanet.sh client --help`` or the
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:ref:`online manual<client_manual>` for more information about
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the client. Every command to the ``tezos-client`` can be
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equivalently executed using ``./alphanet.sh client``.
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Build from sources
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------------------
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**TL;DR**: Typically you want to do:
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::
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sudo apt install -y git m4 build-essential patch unzip bubblewrap wget
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wget https://github.com/ocaml/opam/releases/download/2.0.0/opam-2.0.0-x86_64-linux
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sudo cp opam-2.0.0-x86_64-linux /usr/local/bin/opam
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sudo chmod a+x /usr/local/bin/opam
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git clone https://gitlab.com/tezos/tezos.git
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cd tezos
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git checkout alphanet
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opam init --bare
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make build-deps
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eval $(opam env)
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make
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export PATH=~/tezos:$PATH
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source ./src/bin_client/bash-completion.sh
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export TEZOS_CLIENT_UNSAFE_DISABLE_DISCLAIMER=Y
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Environment
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~~~~~~~~~~~
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Currently Tezos is being developed for Linux x86_64, mostly for
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Debian/Ubuntu and Archlinux.
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The following OSes are reported to work:
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- macOS/x86_64
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- Linux/armv7h (32 bits) (Raspberry Pi3, etc.)
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- Linux/aarch64 (64 bits) (Raspberry Pi3, etc.)
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A Windows port is feasible and might be developed in the future.
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Get the sources
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~~~~~~~~~~~~~~~
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Tezos *git* repository is hosted at `GitLab
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<https://gitlab.com/tezos/tezos/>`_. All development happens here. Do
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**not** use our `GitHub mirror <https://github.com/tezos/tezos>`_
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which we don't use anymore and only mirrors what happens on GitLab.
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You also need to **choose the branch** of the network you want to connect
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to: *alphanet*, *zeronet* or *betanet*.
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The *master* branch is where code is merged, but there is no test
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network using the master branch directly.
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Install OPAM
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~~~~~~~~~~~~
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To compile Tezos, you need the `OPAM <https://opam.ocaml.org/>`__
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package manager, version *2.0.0*. This is the current latest
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version of OPAM and our build script will always use the latest
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released version (or prerelease) of OPAM. The build script will take
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care of setting-up OPAM, download the right version of the OCaml
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compiler, and so on.
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Use ``opam init --bare`` to avoid compiling the OCaml compiler now: it
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will be done in the next step.
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Install Tezos dependencies with OPAM
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Install the OCaml compiler and the libraries which Tezos depends on:
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::
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make build-deps
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This command creates a local opam switch ``_opam`` where the right
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version of OCaml is compiled and installed (this takes a while but
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it's only done once).
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After OCaml it will start with Tezos dependencies, OPAM is able to
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handle correctly the OCaml libraries but it is not always able to
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handle all external C libraries we depend on. On most system, it is
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able to suggest a call to the system package manager but it currently
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does not handle version check.
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Once the dependencies are done we can update opam's environment to
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refer to the new switch and compile the project:
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::
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eval $(opam env)
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make
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Lastly you can also add Tezos binaries to your ``PATH`` variable,
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activate bash autocompletion and after reading the Disclaimer a few
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hundred times you are allowed to disable it with
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``TEZOS_CLIENT_UNSAFE_DISABLE_DISCLAIMER=Y``.
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To add the default opam repository at a lower priority (for example to
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install or test other opam packages), you can use the following command:
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::
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opam repo add default --rank=-1
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