Updated quickstart doc
I merged "quickstart" doc with "ansible-deployment" and "deploy-all-in-one-node". All three of them was covering same topic and added a lot of confusion for new users. I added some clarification lines from myself, with main goal to recive one straightforward document for new users. Change-Id: I793244c47ffbe0ba304e79bacf708494e59d99c4
This commit is contained in:
Proskurin Kirill
parent
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commit
58ee9c4b84
@ -1,141 +0,0 @@
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Kolla with Ansible!
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===================
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Kolla supports deploying Openstack using
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`Ansible <https://docs.ansible.com>`__.
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Getting Started
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---------------
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To run the Ansible playbooks, an inventory file which tracks all of the
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available nodes in the environment must be specified. With this
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inventory file Ansible will log into each node via ssh (configurable)
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and run tasks. Ansible does not require password-less logins via ssh,
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however it is highly recommended to setup ssh-keys.
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Two sample inventory files are provided, *all-in-one*, and *multinode*.
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The "all-in-one" inventory defaults to use the Ansible "local"
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connection type, which removes the need to setup ssh keys in order to
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get started quickly.
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More information on the Ansible inventory file can be found in the Ansible
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`inventory introduction <https://docs.ansible.com/intro_inventory.html>`__.
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Prerequisites
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-------------
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.. NOTE:: Install is *very* sensitive about version of components. Please
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review carefully because default Operating System repos are likely out of
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date.
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===================== =========== =========== =========================
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Component Min Version Max Version Comment
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===================== =========== =========== =========================
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Ansible 1.9.3 none On deployment host
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Docker 1.6.0 1.8.2 On target nodes
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Docker Python 1.2.0 none On target nodes
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===================== =========== =========== =========================
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Docker Python Library (aka docker-py) is also needed to build images
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locally.
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Directory Structure
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-------------------
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When deploying, the following directories will be modified. Make sure
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kolla-ansible have permission to access them.
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- /etc/kolla/
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When deploying, the following directories may be modified. But the path
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could be changed in `/etc/kolla/globals.yml`.
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- /usr/share/kolla
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The sysctl(ansible module) may create temporary file in `/etc/` for
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updating sysctl.
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Deploying
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---------
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Add the etc/kolla directory to /etc/kolla on the deployment host. Inside
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of this directory are two files and a minimum number of parameters which
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are listed below.
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All variables for the environment can be specified in the files:
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"/etc/kolla/globals.yml" and "/etc/kolla/passwords.yml"
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The kolla\_\*\_address variables can both be the same. Please specify
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an unused IP address in your network to act as a VIP for
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kolla\_internal\_address. The VIP will be used with keepalived and
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added to your "api\_interface" as specified in the globals.yml
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::
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kolla_external_address: "openstack.example.com"
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kolla_internal_address: "10.10.10.254"
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The "network\_interface" variable is the interface that we bind all our
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services to. For example, when starting up Mariadb it will bind to the
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IP on the interface list in the "network\_interface" variable.
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::
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network_interface: "eth0"
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The "neutron\_external\_interface" variable is the interface that will
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be used for your external bridge in Neutron. Without this bridge your
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instance traffic will be unable to access the rest of the Internet. In
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the case of a single interface on a machine, you may use a veth pair
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where one end of the veth pair is listed here and the other end is in a
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bridge on your system.
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::
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neutron_external_interface: "eth1"
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The docker\_pull\_policy specifies whether Docker should always pull
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images from the repository it is configured for, or only in the case
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where the image isn't present locally. If you are building your own
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images locally without pushing them to the Docker Registry, or a local
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registry, you must set this value to "missing" or when you run the
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playbooks docker will attempt to fetch the latest image upstream.
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::
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docker_pull_policy: "always"
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For All-In-One deploys, the following commands can be run. These will
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setup all of the containers on the localhost. These commands will be
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wrapped in the kolla-script in the future.
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::
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cd ./kolla/ansible
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ansible-playbook -i inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml site.yml
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To run the playbooks for only a particular service, Ansible tags can be
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used. Multiple tags may be specified, and order is still determined by
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the playbooks.
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::
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cd ./kolla/ansible
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ansible-playbook -i inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml site.yml --tags rabbitmq
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ansible-playbook -i inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml site.yml --tags rabbitmq,mariadb
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Finally, you can view ./kolla/tools/openrc-example for an example of an
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openrc you can use with your environment. If you wish you may also run
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the following command to initiate your environment with an glance image
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and neutron networks.
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::
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cd ./kolla/tools
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./init-runonce
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Further Reading
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---------------
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Ansible playbook documentation can be found in the Ansible
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`playbook documentation <http://docs.ansible.com/playbooks.html>`__.
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@ -1,72 +0,0 @@
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Deploy OpenStack all in one node using Ansible
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==============================================
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Deploy OpenStack to ubuntu host(ubuntu docker image)
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----------------------------------------------------
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The machine minimal requirements:
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- two network interfaces.
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The machine recommended requirements:
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- two network interfaces.
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- more than 8gb main memory.
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- at least 40gb disk space.
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It is generally a good idea to run a recent kernel. On Ubuntu LTS::
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sudo apt-get install linux-image-generic-lts-vivid
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sudo reboot
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The guide assumes that you have build images using the following command.
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::
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tools/build.py --registry 172.22.2.81:4000 --base ubuntu --type source --push
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The IP, "172.22.2.81", is the host running private docker registry.
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To deploy a private docker registry,
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please read the document DeployingRegistryServer_.
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First, add ``--insecure-registry 172.22.2.81:4000``
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to ``DOCKER_OPTS`` in ``/etc/default/docker``.
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And restart the docker service.
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This will permit Docker to pull from the deployment's private registry.
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Clone the kolla repository and copy kolla config to ``"/etc"``:
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::
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git clone https://github.com/openstack/kolla
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cd kolla
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cp -rf etc/kolla/ /etc/
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And modify the file, ``"/etc/kolla/globals.yml"``. Do the below tasks.
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- Set ``"kolla_base_distro"`` to ``"ubuntu"``.
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- Set ``"kolla_install_type"`` to ``"source"``.
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- Set ``"docker_registry"`` to ``"172.22.2.81:4000"``.
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- Change kolla_internal_address value.
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Specify an unissued IP address in the deployment environment
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Change the following values if needed:
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- network_interface
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- neutron_external_interface
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After doing these tasks, run the following command in kolla directory:
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::
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tools/kolla-ansible -i ansible/inventory/all-in-one -p ansible/site.yml deploy
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Deployment takes between 10 and 15 minutes from
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a local private registry on gigabit networks.
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.. _DeployingRegistryServer: https://docs.docker.com/registry/deploying/
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@ -34,8 +34,6 @@ Kolla Overview
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deployment-philosophy
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quickstart
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ansible-deployment
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deploy-all-in-one-node
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heat-dev-env
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vagrant-dev-env
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image-building
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@ -9,21 +9,31 @@ available. These options permit the evaluation of Kolla without
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disrupting the host operating system.
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If developing or evaluating Kolla on an OpenStack cloud environment that
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supports Heat, follow the :doc:`Heat evaluation and developer environment guide <devenv-heat>`.
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supports Heat, follow the :doc:`Heat evaluation and developer environment
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guide <heat-dev-env>`.
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If developing or evaluating Kolla on a system that provides VirtualBox,
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Vagrant may be used and is documented in the :doc:`Vagrant evaluation and developer environment guide <devenv-vagrant>`.
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If developing or evaluating Kolla on a system that provides VirtualBox or
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Libvirt in addition to Vagrant, use the Vagrant virtual environment documented
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in :doc:`Vagrant evaluation and
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developer environment guide <vagrant-dev-env>`.
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If evaluating or deploying OpenStack on bare-metal with Kolla, follow the
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instructions in this document to get started.
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Host machine requirements
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---------------------------------
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The machine recommended requirements:
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- Two network interfaces.
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- More than 8gb main memory.
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- At least 40gb disk space.
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Installing Dependencies
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-----------------------
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Kolla is tested on Fedora/Ubuntu/CentOS. It should work with other OS
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distributions, but some need further testing. If other OS distributions can
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be verified, update this doc accordingly. For Fedora/Ubuntu, follow below
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recommendations:
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Kolla is tested on CentOS, Oracle Linux, RHEL and Ubuntu. It should work with
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other OS distributions, but some need further testing.
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Fedora: Kolla will not run on Fedora 22 or later currently. Fedora 22
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compresses kernel modules with the .xz compressed format. The guestfs system
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@ -32,21 +42,32 @@ package supermin in CentOS needs to be updated to add .xz compressed format
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support.
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Ubuntu: For Ubuntu based systems where Docker is used, do not use AUFS when
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starting Docker daemon unless you are running the Ubuntu with 3.19 kernel or
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above. AUFS requires CONFIG\_AUFS\_XATTR=y set when building the kernel. On
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starting Docker daemon, unless running Ubuntu uses 3.19 kernel or above.
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AUFS requires CONFIG\_AUFS\_XATTR=y set when building the kernel. On
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Ubuntu, versions prior to 3.19 did not set this flag to be compatible with
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Docker. If unable to upgrade the kernel, the Kolla community recommends using
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a different storage backend such as btrfs when running Docker daemon.
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Docker. In order to update kernel in Ubuntu 14.04 LTS to 3.19, run:
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On the deployment host Ansible>=1.8.4 must be installed and is the only
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requirement for deploying OpenStack. To build the Docker container images
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locally the dependencies docker>=1.7.0 and the Python libraries
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docker-py>=1.2.0 and Jinja2>=2.6 must be installed.
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::
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The deployment target nodes require the installation of docker>=1.7.0 and
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docker-py>=1.2.0.
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sudo apt-get install linux-image-generic-lts-vivid
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To install Kolla Python dependencies use:
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If unable to upgrade the kernel, the Kolla community recommends using a
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different storage backend such as btrfs when running Docker daemon.
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.. NOTE:: Install is *very* sensitive about version of components. Please
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review carefully because default Operating System repos are likely out of
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date.
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===================== =========== =========== =========================
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Component Min Version Max Version Comment
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===================== =========== =========== =========================
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Ansible 1.9.4 none On deployment host
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Docker 1.8.2 1.8.2 On target nodes
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Docker Python 1.2.0 none On target nodes
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Python Jinja2 2.6.0 none On deployment host
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===================== =========== =========== =========================
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To install Python dependencies use:
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::
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@ -63,21 +84,39 @@ command:
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curl -sSL https://get.docker.io | bash
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This command will install the most recent stable version of Docker, but please
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note what Kolla releases are not in sync with docker in any way, so some things
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could stop working with new version. Kolla release 1.0.0-liberty tested to
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work with docker 1.8.2, to check you docker version run this command:
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::
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docker --version
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If this version is higher than recomended, consider downgrade it using this
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commands:
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::
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# Centos 7
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yum downgrade docker-engine-1.8.2-1
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service docker-engine restart
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# Ubuntu 14.04 LTS
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sudo apt-get install docker-engine=1.8.2-0~trusty
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On the system where the OpenStack CLI/Python code is run, the Kolla community
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recommends installing the OpenStack python clients if they are not installed.
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This could be a completely different machine then the deployment host or
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deployment targets. Before installing the OpenStack python client, there are
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the following requirements needed by your system:
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deployment targets. Before installing the OpenStack python client, the
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following requirements are needed to build the client code:
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::
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# Ubuntu
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apt-get install -y python-dev python-pip libffi-dev libssl-dev
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sudo apt-get install -y python-dev python-pip libffi-dev libssl-dev
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# Fedora
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yum install -y python-devel python-pip libffi-devel openssl-devel
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# Centos
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# Centos 7
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easy_install pip
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yum install -y python-devel libffi-devel openssl-devel
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@ -90,16 +129,20 @@ To install these clients use:
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OpenStack uses healthcheck timers which run off wall-clock time rather then
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starting a timer and expring the timer, encoding the expiration in the message
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contents. In some cases, this timer interval can be on the order of 60
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seconds. For OpenStack to Operate correctly with these tight health-check
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seconds. For OpenStack to operate correctly with these tight health-check
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timer intervals, the Kolla community highly recommends running the ntpd
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service on all deployment targets. To install, start, and enable ntp on
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CentOS execute the following:
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service on all deployment targets. To install, start, and enable ntp
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execute the following:
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::
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# Centos 7
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yum -y install ntp
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chkconfig ntpd enable
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service ntpd start
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systemctl enable ntpd
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systemctl start ntpd
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# Ubuntu
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sudo apt-get install ntp
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Libvirt is started by default on many operating systems. Please disable libvirt
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on any machines that will be deployment targets. Only one copy of libvirt may
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@ -112,9 +155,10 @@ be running at a time.
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Kolla deploys OpenStack using
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`Ansible <http://www.ansible.com>`__. Install Ansible from distribution
|
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packaging if the distro packaging has 1.8.4 or greater available. Currently
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Ubuntu's version of Ansible is too old to use from packaging. On RPM
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based systems install from packaging using:
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packaging if the distro packaging has recommended version available.
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Currently all implemented distro versons of Ansible are too old to use distro packaging.
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Once distro packaging is updated install from packaging using:
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::
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@ -139,47 +183,152 @@ Building Container Images
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The Kolla community does not currently generate new images for each commit
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to the repository. The push time for a full image build to the docker registry
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||||
is about 5 hours on 100mbit Internet, so there are technical limitations to
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using the Docker Hub registry with our current OpenStack CI/CD systems.
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using the Docker Hub registry with the current OpenStack CI/CD systems.
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The Kolla community builds and pushes tested images for each tagged release of
|
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Kolla, but if running from master, it is recommended to build images locally.
|
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All Docker images can be built as follows.
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Before running the below instructions, ensure the docker daemon is running
|
||||
or the build process would fail:
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||||
or the build process will fail. To build images using default parameters run:
|
||||
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||||
::
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tools/build.py
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||||
|
||||
By default docker will build all containers using Centos as base image and
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||||
binary installation as base installation method. To change this behavior,
|
||||
please use the following parameters with build.py:
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||||
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||||
::
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||||
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||||
--base [ubuntu|centos|fedora|oraclelinux]
|
||||
--type [binary|source]
|
||||
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||||
A docker build of all containers on Xeon hardware with SSDs and 100mbit network
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||||
takes roughly 30 minutes. The CentOS mirrors are flakey and the RDO delorean
|
||||
repository is not mirrored at all. As a result occasionally some containers
|
||||
fail to build. To rectify this, the build tool will automatically attempt three
|
||||
retries of a build operation if the first one fails.
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||||
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||||
It is also possible to build individual containers. If for some reason the glance
|
||||
containers failed to build, all glance related containers can be rebuilt as follows:
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It is also possible to build individual containers. As an example, if the
|
||||
glance containers failed to build, all glance related containers can be
|
||||
rebuilt as follows:
|
||||
|
||||
::
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||||
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||||
tools/build.py glance
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||||
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||||
Starting Kolla
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||||
--------------
|
||||
|
||||
Configure Ansible by reading the
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||||
:doc:`Kolla Ansible configuration Guide <ansible-deployment>` documentation.
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||||
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||||
Finally, run the deploy operation:
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||||
In order to see all available parameters, run:
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||||
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||||
::
|
||||
|
||||
./tools/kolla-ansible deploy
|
||||
tools/build.py -h
|
||||
|
||||
A bare metal system takes three minutes to deploy AIO. A virtual machine
|
||||
deployment takes five minutes to deploy AIO. These are estimates; different
|
||||
hardware may be faster or slower but should be near these results.
|
||||
Deploying Kolla
|
||||
---------------
|
||||
|
||||
The Kolla community provide two example methods of Kolla deploy: *all-in-one* and
|
||||
*multinode*. The "all-in-one" deploy is similar to `devstack
|
||||
<http://docs.openstack.org/developer/devstack/>`__ deploy which installs all
|
||||
OpenStack services on a single host. In the "multinode" deploy, OpenStack
|
||||
services can be run on specific hosts. This documentation only describes
|
||||
deploying *all-in-one* method as most simple one.
|
||||
|
||||
Each method is represented as an Ansible inventory file. More information on the
|
||||
Ansible inventory file can be found in the Ansible `inventory introduction
|
||||
<https://docs.ansible.com/intro_inventory.html>`__.
|
||||
|
||||
Copy the etc/kolla directory from the git to /etc/kolla on the deployment
|
||||
host. All variables for the environment can be specified in the files:
|
||||
"/etc/kolla/globals.yml" and "/etc/kolla/passwords.yml"
|
||||
|
||||
Start by editing /etc/kolla/globals.yml. Check and edit, if needed, these
|
||||
parameters: kolla_base_distro, kolla_install_type.
|
||||
|
||||
The kolla\_\*\_address variables can both be the same. Please specify
|
||||
an unused IP address in the network to act as a VIP for
|
||||
kolla\_internal\_address. The VIP will be used with keepalived and
|
||||
added to the "api\_interface" as specified in the globals.yml
|
||||
|
||||
::
|
||||
|
||||
kolla_external_address: "openstack.example.com"
|
||||
kolla_internal_address: "10.10.10.254"
|
||||
|
||||
If the environment doesn't have a free IP address available for VIP
|
||||
configuration, the host's IP address may be used here by disabling HAProxy by
|
||||
adding:
|
||||
|
||||
::
|
||||
|
||||
enable_haproxy: "no"
|
||||
|
||||
Note this method is not recommended and generally not tested by the
|
||||
development community, but included since sometimes a free IP is not available
|
||||
in a testing environment.
|
||||
|
||||
The "network\_interface" variable is the interface to which Kolla binds API
|
||||
services. For example, when starting up Mariadb it will bind to the
|
||||
IP on the interface list in the "network\_interface" variable.
|
||||
|
||||
::
|
||||
|
||||
network_interface: "eth0"
|
||||
|
||||
The "neutron\_external\_interface" variable is the interface that will
|
||||
be used for the external bridge in Neutron. Without this bridge the deployment
|
||||
instance traffic will be unable to access the rest of the Internet. In
|
||||
the case of a single interface on a machine, a veth pair may be used where
|
||||
one end of the veth pair is listed here and the other end is in a bridge on
|
||||
the system.
|
||||
|
||||
::
|
||||
|
||||
neutron_external_interface: "eth1"
|
||||
|
||||
The docker\_pull\_policy specifies whether Docker should always pull
|
||||
images from the repository it is configured for, or only in the case
|
||||
where the image isn't present locally. If building local images without
|
||||
pushing them to the Docker registry, please set this value to "missing"
|
||||
or when running deployment Docker will attempt to fetch the latest image
|
||||
upstream.
|
||||
|
||||
::
|
||||
|
||||
docker_pull_policy: "missing"
|
||||
|
||||
For "all-in-one" deploys, the following commands can be run. These will
|
||||
setup all of the containers on the localhost. These commands will be
|
||||
wrapped in the kolla-script in the future.
|
||||
|
||||
::
|
||||
|
||||
tools/kolla-ansible deploy
|
||||
|
||||
In order to see all available parameters, run:
|
||||
|
||||
::
|
||||
|
||||
tools/kolla-ansible -h
|
||||
|
||||
A bare metal system with Ceph takes 18 minutes to deploy. A virtual machine
|
||||
deployment takes 25 minutes. These are estimates; different hardware may be
|
||||
faster or slower but should be near these results.
|
||||
|
||||
After successful deployment of OpenStack, the Horizon dashboard will be
|
||||
avalible by entering IP addr or hostname from "kolla_external_address",
|
||||
or kolla_internal_address in case then kolla_external_address uses
|
||||
kolla_internal_address.
|
||||
|
||||
Useful tools
|
||||
-------------
|
||||
View tools/openrc-example for an example of an openrc that may be used with
|
||||
the environment. The following command will initialize an environment with a
|
||||
glance image and neutron networks:
|
||||
|
||||
::
|
||||
|
||||
tools/init-runonce
|
||||
|
||||
Debugging Kolla
|
||||
---------------
|
||||
@ -194,22 +343,23 @@ executing:
|
||||
If any of the containers exited, this indicates a bug in the container. Please
|
||||
seek help by filing a bug or contacting the developers via IRC.
|
||||
|
||||
the logs can be examined by executing:
|
||||
The logs can be examined by executing:
|
||||
|
||||
::
|
||||
|
||||
docker exec -it rsyslog bash
|
||||
|
||||
The logs from all services in all containers may be read from
|
||||
/var/log/SERVICE_NAME
|
||||
|
||||
If the stdout logs are need, please run:
|
||||
|
||||
::
|
||||
|
||||
docker logs <container-name>
|
||||
|
||||
Note some of the containers don't log to stdout at present so the above
|
||||
command will provide no information. Instead they log to files
|
||||
in /var/log/<service_> inside the container. The Kolla community is
|
||||
working to improve auditing and make things more consistent. The Kolla
|
||||
community expects this work to complete by Liberty rc1. An example of
|
||||
reading the logs for nova-api:
|
||||
Note that some of the containers don't log to stdout at present so the above
|
||||
command will provide no information.
|
||||
|
||||
::
|
||||
|
||||
docker exec -t nova_api more /var/log/nova/nova-api.log
|
||||
|
||||
Note reading the logs via an exec operation can only be done if the
|
||||
container is running.
|
||||
To learn more about Docker command line operation please refer to `Docker
|
||||
documentation <https://docs.docker.com/reference/commandline/cli/>`__.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user