Purge Fedora getting started of old info
Remove all of the old tools/openstack related info from the on_fedora docs - the best source of documentation for Fedora is now the RDO docs (for Heat RPM package installs), or the on_devstack guide for development installs. Change-Id: Id33d94cc063361698eb87315a56ef7f720ecaa73 Partial-Bug: #1182428
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Steven Hardy
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@ -23,343 +23,17 @@ Getting Started With Heat on Fedora
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To include code in the script that should not appear in the output, make it
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a comment block.
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..
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#!/bin/bash
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# Exit on error
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set -e
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Installing OpenStack and Heat on Fedora
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---------------------------------------
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Get Heat
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--------
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Either the Grizzly, or Havana release of OpenStack is required. If you are using Grizzly, you should use the stable/grizzly branch of Heat.
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Clone the heat repository_ from GitHub at ``git://github.com/openstack/heat.git``. Note that OpenStack must be installed before heat.
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Optionally, one may wish to install Heat via RPM. Creation instructions are in the readme in the heat-rpms_ repository at ``git://github.com/heat-api/heat-rpms.git``.
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Instructions for installing the RDO OpenStack distribution on Fedora are available at ``http://openstack.redhat.com/Quickstart``
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.. _repository: https://github.com/openstack/heat
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.. _heat-rpms: https://github.com/heat-api/heat-rpms
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Instructions for installing Heat on RDO are also available at ``http://openstack.redhat.com/Docs``
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Install OpenStack
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Alternatively, if you require a development environment not a package-based install, the suggested method is devstack, see instructions at :doc:`on_devstack`
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Example Templates
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-----------------
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Installing OpenStack on Fedora 17/18
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Note:
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- On Fedora 17 using the `Preview Repository`_ to install the OpenStack Folsom release is recommended
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- On Fedora 18 you can use the included OpenStack Folsom release or the Grizzly `Preview Repository`_
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A script called "``openstack``" in the tools directory of the repository will install and start OpenStack for you on Fedora::
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./tools/openstack install -y -r ${MYSQL_ROOT_PASSWORD}
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If you use this method, you will need to manually create a guest network. How this is done depends on your environment. An example network create operation:
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..
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SUBNET=10.0.0.0/24
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::
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sudo nova-manage network create demonet ${SUBNET} 1 256 --bridge=demonetbr0
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Where ``${SUBNET}`` is of the form ``10.0.0.0/24``. The network range here, must *not* be one used on your existing physical network. It should be a range dedicated for the network that OpenStack will configure. So if ``10.0.0.0/24`` clashes with your local network, pick another subnet.
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Currently, the bridge is not created immediately upon running this command, but is actually added when Nova first requires it.
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If you wish to set up OpenStack manually on Fedora, read `Getting Started With OpenStack On Fedora`_.
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.. _Getting Started With OpenStack on Fedora: http://fedoraproject.org/wiki/Getting_started_with_OpenStack_on_Fedora_17
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.. _Preview Repository: http://fedoraproject.org/wiki/OpenStack#Preview_repository
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Download or alternatively generate a JEOS image
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-----------------------------------------------
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It is possible to either use an image-building tool to create an image or download a prebuilt image of a desired distribution.
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Download a prebuilt image and copy to libvirt images location
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Download a prebuilt image from ``http://fedorapeople.org/groups/heat/prebuilt-jeos-images/``.
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Note: This example assumes F17-x86_64-cfntools qcow2 was downloaded.
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::
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sudo cp Downloads/F17-x86_64-cfntools.qcow2 /var/lib/libvirt/images
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Register with glance:
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::
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glance image-create --name=F17-x86_64-cfntools --disk-format=qcow2 --container-format=bare < /var/lib/libvirt/images/F17-x86_64-cfntools.qcow2
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Alternatively see JEOS image-building documentation
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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If you wish to create your own JEOS image from scratch, there are a number of approaches which can be used.
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One approach is using the Oz image-building tool, which is documented in the `jeos building documentation`_.
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.. _jeos building documentation: http://docs.openstack.org/developer/heat/getting_started/jeos_building.html
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Install and Configure Heat
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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Install heat from source
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------------------------
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In the heat directory, run the install script::
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sudo ./install.sh
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If running OpenStack grizzly installed via tools/openstack, it is necessary to modify the default service user password::
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sudo sed -i "s/verybadpass/secrete/" /etc/heat/heat.conf
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Source the keystone credentials created with tools/openstack
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------------------------------------------------------------
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::
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source ~/.openstack/keystonerc
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Note: these credentials will be required for all future steps.
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Allocate Floating IP Addresses to OpenStack
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-------------------------------------------
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If you want to use templates that depend on ``AWS::EC2::EIP`` or ``AWS::EC2::EIPAssociation`` (multi-instance stacks often do, single-instance less often but it's still possible), see the wiki page on `Configuring Floating IPs`_.
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.. _Configuring Floating IPs: http://wiki.openstack.org/Heat/Configuring-Floating-IPs
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Setup the MySQL database for Heat
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---------------------------------
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::
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heat-db-setup rpm -y -r ${MYSQL_ROOT_PASSWORD}
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Note: the first argument is either ``rpm`` for RPM-based distros (such as Fedora) or ``deb`` for Debian-based distros (such as Ubuntu). To prompt for confirmation when e.g. installing MySQL Server, omit the ``-y`` option. Run ``heat-db-setup --help`` for detailed documentation.
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Register heat with keystone
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---------------------------
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::
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sudo -E ./bin/heat-keystone-setup
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Note: The ``-E`` option to ``sudo`` preserves the environment, specifically the keystone credentials, when ``heat-keystone-setup`` is run as root. This script needs to run as root in order to read the admin password.
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Register a SSH key-pair with OpenStack Nova
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-------------------------------------------
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This is for Heat to associate with the virtual machines.
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::
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nova keypair-add --pub_key ~/.ssh/id_rsa.pub ${USER}_key
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Verify JEOS registration
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~~~~~~~~~~~~~~~~~~~~~~~~
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Check that there is a ``F17-x86_64-cfntools`` JEOS in glance:
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..
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GLANCE_INDEX=$(cat <<EOF
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::
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glance index
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..
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EOF
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)
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$GLANCE_INDEX | grep -q "F17-x86_64-cfntools"
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Update heat engine configuration file
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-------------------------------------
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The heat engine configuration file should be updated with the address of the bridge device (demonetbr0), however this device is not created by nova-network until the first instance is launched, so we assume that $BRIDGE_IP is 10.0.0.1 if $SUBNET is 10.0.0.0/24 as in the instructions above:
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..
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BRIDGE_IP=`echo $SUBNET | awk -F'[./]' '{printf "%d.%d.%d.%d", $1, $2, $3, or($4, 1)}'`
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::
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sudo sed -i -e "/^\[DEFAULT\]/ a\\\nheat_metadata_server_url=http://${BRIDGE_IP}:8000/\n" /etc/heat/heat.conf
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sudo sed -i -e "/^\[DEFAULT\]/ a\\\nheat_waitcondition_server_url=http://${BRIDGE_IP}:8000/v1/waitcondition/" /etc/heat/heat.conf
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sudo sed -i -e "/^\[DEFAULT\]/ a\\\nheat_watch_server_url=http://${BRIDGE_IP}:8003/" /etc/heat/heat.conf
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Launch the Heat services
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------------------------
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::
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sudo -E bash -c 'heat-api-cfn & heat-engine &'
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..
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sleep 5
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Launch a Wordpress instance
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---------------------------
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::
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heat-cfn create wordpress --template-url=https://raw.github.com/openstack/heat-templates/master/cfn/WordPress_Single_Instance.template --parameters="InstanceType=m1.xlarge;DBUsername=${USER};DBPassword=verybadpass;KeyName=${USER}_key"
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List stacks
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-----------
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::
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heat-cfn list
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List stack events
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-----------------
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::
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heat-cfn event-list wordpress
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Describe the ``wordpress`` stack
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--------------------------------
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..
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HEAT_DESCRIBE=$(cat <<EOF
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::
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heat-cfn describe wordpress
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..
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EOF
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)
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After a few seconds, the ``StackStatus`` should change from ``CREATE_IN_PROGRESS`` to ``CREATE_COMPLETE``.
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..
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# Wait for Stack creation
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CREATING="<StackStatus>CREATE_IN_PROGRESS</StackStatus>"
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retries=24
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while $HEAT_DESCRIBE | grep -q $CREATING && ((retries-- > 0))
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do
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echo "Waiting for Stack creation to complete..." >&2
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sleep 5
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done
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$HEAT_DESCRIBE | grep -q "<StackStatus>CREATE_COMPLETE</StackStatus>"
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Verify instance creation
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------------------------
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Because the software takes some time to install from the repository, it may be a few minutes before the Wordpress intance is in a running state. One way to check is to login via ssh and ``tail -f /var/log/yum.log``. Once ``mysql-server`` installs, the instance should be ready to go.
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..
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WebsiteURL=$($HEAT_DESCRIBE | sed \
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-e '/<OutputKey>WebsiteURL<\/OutputKey>/,/<\/member>/ {' \
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-e '/<OutputValue>/ {' \
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-e 's/<OutputValue>\([^<]*\)<\/OutputValue>/\1/' \
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-e p \
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-e '}' -e '}' \
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-e d \
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)
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HOST=`echo $WebsiteURL | sed -r -e 's#http://([^/]+)/.*#\1#'`
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retries=9
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while ! ping -q -c 1 $HOST >/dev/null && ((retries-- > 0)); do
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echo "Waiting for host networking..." >&2
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sleep 2
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done
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test $retries -ge 0
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sleep 10
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retries=49
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while ! ssh -o PasswordAuthentication=no -o StrictHostKeyChecking=no \
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-q -t -l ec2-user $HOST \
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sudo grep -q mysql-server /var/log/yum.log && \
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((retries-- > 0))
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do
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echo "Waiting for package installation..." >&2
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sleep 5
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done
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test $retries -ge 0
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echo "Pausing to wait for application startup..." >&2
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sleep 60
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Point a web browser at the location given by the ``WebsiteURL`` Output as shown by ``heat-cfn describe``::
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wget ${WebsiteURL}
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Delete the instance when done
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-----------------------------
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::
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heat-cfn delete wordpress
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heat-cfn list
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Note: This operation will show no running stack.
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Other Templates
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---------------
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Check out the ``Wordpress_2_Instances_with_EBS_EIP.template``. This uses a few different APIs in OpenStack nova, such as the Volume API, the Floating IP API and the Security Groups API, as well as the general nova launching and monitoring APIs.
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IPtables rules
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--------------
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Some templates require the instances to be able to connect to the heat CFN API (for metadata update via cfn-hup and waitcondition notification via cfn-signal):
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Open up port 8000 so that the guests can communicate with the heat-api-cfn server::
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sudo iptables -I INPUT -p tcp --dport 8000 -j ACCEPT -i demonetbr0
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Open up port 8003 so that the guests can communicate with the heat-api-cloudwatch server::
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sudo iptables -I INPUT -p tcp --dport 8003 -j ACCEPT -i demonetbr0
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Note the above rules will not persist across reboot, so you may wish to add them to /etc/sysconfig/iptables
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Start the Heat Cloudwatch server
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--------------------------------
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If you wish to try any of the HA or autoscaling templates (which collect stats from instances via the CloudWatch API), it is neccessary to start the heat-api-cloudwatch server::
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sudo -E bash -c 'heat-api-cloudwatch &'
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Further information on using the heat cloudwatch features is available in the Using-Cloudwatch_ wiki page
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.. _Using-Cloudwatch: http://wiki.openstack.org/Heat/Using-CloudWatch
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Using the OpenStack Heat API
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----------------------------
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CloudFormation (heat-api-cfn) and a native OpenStack Heat API (heat-api) are provided. To use the recommended Heat API, a python client library is necessary. To use this library, clone the python-heatclient repository_ from GitHub at ``git://github.com/openstack/python-heatclient.git``.
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Install python-heatclient from source
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-------------------------------------
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In the python-heatclient directory, run the install script::
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sudo ./setup.py install
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Note that python-heatclient may be installed on a different server than heat itself.
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Note that pip can be used to install python-heatclient, but the instructions vary for each distribution. Read your distribution documentation if you wish to install with pip.
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Start the OpenStack specific Heat API
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-------------------------------------
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When using heat-pythonclient, the OpenStack API service provided by heat must be started::
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sudo bash -c 'heat-api &'
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List stacks
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-----------
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::
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heat stack-list
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..
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echo; echo 'Success!'
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Check out the example templates at ``https://github.com/openstack/heat-templates``. Here you can view example templates which will work with several Fedora versions.
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