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Xapi Project's XenAPI Management Toolstack

Build

Xen API (or xapi) is a management stack that configures and controls Xen-enabled hosts and resource pools, and coordinates resources within the pool. Xapi exposes the Xen API interface for many languages and is a component of the XenServer project. Xen API is written mostly in OCaml 4.07.

Xapi is the main component produced by the Linux Foundation's Xapi Project.

Build and Install

To build xen-api from source, we recommend using opam with the xs-opam repository (further explanation in its readme).

  1. Install opam and git with your package manager.

  2. Clone this repo and work from its root.

    git clone https://github.com/xapi-project/xen-api && cd xen-api
  3. Figure out which version of ocaml-base-compiler to use.

    • Go to this xs-opam file, and look for OCAML_VERSION_FULL.

    • Run that line, e.g.:

      export OCAML_VERSION_FULL="4.14.1"
  4. Setup opam with your environment (i.e. switch).

    opam init
    opam switch create xen-api ocaml-base-compiler.$OCAML_VERSION_FULL
    # This basically "jumps you into" the environment you just created:
    eval $(opam env --switch=xen-api --set-switch)
  5. Get the Recommended Packages.

    # Add the xs-opam library as the main repo to check for versions at:
    opam repo add xs-opam https://github.com/xapi-project/xs-opam.git
    # Remove the default, because how it handles version conflicts is different:
    opam repo remove default
    # (NOT needed with opam>=2.1.0) Have opam now figure out what versions of each package to use:
    opam pin --yes add . --no-action
  6. Install all the Packages.

    opam install xs-toolstack
    # Update the current switch. (You're already on the correct one, just refresh it).
    eval $(opam env)
  7. Build xen-api.

    ./configure
    make
    make test

The binaries should now be in ./_build/install/default/bin!

Working From a Fork

If you are working from within a clone of a fork of this repository, you will need tags from the upstream repository in order to produce a build with the correct versioning string.

To fetch these tags, you must ensure that this repository is known to git (as a remote, often called upstream) and then you can fetch the tags as follows:

git remote add upstream https://github.com/xapi-project/xen-api
git fetch upstream --tags

You can check if this has been successful by invoking git describe.

You can then push these tags to your remote repository to ensure they are cloned in future:

git push origin --tags

Contributions

To contribute patches to xen-api, please fork the repository on Github, and then submit a pull request. If for some reason you can't use Github to submit a pull request, then you may send your patch for review to the [email protected] mailing list, with a link to a public git repository for review. We much prefer Github pull requests, however, and submitting a patch to the mailing list will take much more time for review.

Maintainers

Maintainers can be contacted via this mailing list: [email protected]

Licensing

This software is licensed under the GNU LGPLv2 license. Please see the LICENSE file for more information.