7fad2491e7
Reordering documenation for a cleaner presentation of details, and centralization of howto information. Change-Id: I758161b46cb19b8871e59cd2b3fcddbfc009b785
62 lines
2.6 KiB
ReStructuredText
62 lines
2.6 KiB
ReStructuredText
The ansible scripts that compose Bifrost download and install
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software via a number of means, which generally assumes connectivity
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to the internet.
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That connectivity is not required.
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If you want or need to install Bifrost without having a dependency on
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a connection to the internet, there are a number of steps that you will
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need to follow (many of which may have already been done in your
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environment anyway).
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Those steps can be broken down into two general categories; the first being
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steps that need to be done in your inventory file, and the second being
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steps that need to be done on your target host outside of Ansible.
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Ansible Specific Steps
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----------------------
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The script ``scripts/env-setup.sh`` will do a ``git clone`` to create
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``/opt/stack/ansible``, if it doesn't already exist. You can use the
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environment variables ``ANSIBLE_GIT_URL`` and ``ANSIBLE_GIT_BRANCH``
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to override the source URL and the branch name to pull from.
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Ansible uses Git submodules, which means if you are cloning from
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anything other than the canonical location (GitHub), you'll need
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to commit a patched ``.gitmodules`` to that repo so that submodules
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are also cloned from an alternate location - otherwise, the submodules
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will still try to clone from GitHub.
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Bifrost Specific Steps
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----------------------
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As a general rule, any URL referenced by Bifrost scripts is configured in a
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``playbook/roles/<role>/defaults/main.yml`` file, which means that all of those
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can be redirected to point to a local copy by creating a file named
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``playbooks/host_vars/<hostname>.yml`` and redirecting the appropriate variables.
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As an example, my current file looks like:
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.. code-block:: yaml
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ipa_kernel_upstream_url: file:///vagrant/coreos_production_pxe.vmlinuz
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ipa_ramdisk_upstream_url: file:///vagrant/coreos_production_pxe_image-oem.cpio.gz
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cirros_deploy_image_upstream_url: file:///vagrant/cirros-0.3.4-x86_64-disk.img
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dib_git_url: file:///vagrant/git/diskimage-builder
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ironicclient_git_url: file:///vagrant/git/python-ironicclient
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shade_git_url: file:///vagrant/git/shade
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ironic_git_url: file:///vagrant/git/ironic
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If this list becomes out of date, it's simple enough to find the things that
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need to be fixed by looking for any URLs in the
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``playbook/roles/<role>/defaults/main.yml`` files, as noted above.
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External Steps
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--------------
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Bifrost doesn't attempt to configure ``apt``, ``yum``, or ``pip``, so if you are
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working in an offline mode, you'll need to make sure those work independently.
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``pip`` in particular will be sensitive; Bifrost tends to use the most recent
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version of python modules, so you'll want to make sure your cache isn't stale.
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