Minion doc
Document the basic install for the undercloud minion Related-Blueprint: undercloud-minion Change-Id: Idbcd60c89ed3e078c4ee41743e4d9955bae2e86d
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Alex Schultz
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@ -12,6 +12,7 @@ Documentation on how to enable and configure various features available in
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network_isolation_virt
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ssl
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ipsec
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undercloud_minion
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node_placement
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ops_tools
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high_availability
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@ -0,0 +1,137 @@
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Installing a Undercloud Minion
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==============================
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.. note::
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This is optional functionality that is helpful for large scale related
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deployments.
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.. note::
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The minion functionality is only available starting from the Train cycle.
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The undercloud can be scaled horizontally by installing and configuring undercloud
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minions. The minions can expand the number of heat-engine and ironic-conductors
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available the overall undercloud installation. The undercloud minions can be
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added and removed as necessary to scale processing during a deployment.
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Installation Steps
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------------------
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.. note::
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The minion requires an undercloud has been installed. The undercloud
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installation process has two output files that we will need to install the
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minion.
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#. Log in to your machine (baremetal or VM) where you want to install the
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minion as a non-root user (such as the stack user)::
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ssh <non-root-user>@<minion-machine>
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.. note::
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If you don't have a non-root user created yet, log in as root and create
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one with following commands::
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sudo useradd stack
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sudo passwd stack # specify a password
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echo "stack ALL=(root) NOPASSWD:ALL" | sudo tee -a /etc/sudoers.d/stack
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sudo chmod 0440 /etc/sudoers.d/stack
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su - stack
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.. note::
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The minion is intended to work correctly with SELinux enforcing.
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Installations with the permissive/disabled SELinux are not recommended.
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The ``minion_enable_selinux`` config option controls that setting.
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.. note::
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vlan tagged interfaces must follow the if_name.vlan_id convention, like for
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example: eth0.vlan100 or bond0.vlan120.
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#. Enable needed repositories:
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.. admonition:: RHEL
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:class: rhel
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Enable optional repo::
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sudo yum install -y yum-utils
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sudo yum-config-manager --enable rhelosp-rhel-7-server-opt
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.. include:: ../repositories.txt
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.. We need to manually continue our list numbering here since the above
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"include" directive breaks the numbering.
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3. Install the TripleO CLI, which will pull in all other necessary packages as dependencies::
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sudo yum install -y python-tripleoclient
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#. Copy the `tripleo-undercloud-outputs.yaml` and `tripleo-undercloud-passwords.yaml`
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from the undercloud to the node being provisioned as a minion::
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scp tripleo-undercloud-outputs.yaml tripleo-undercloud-passwords.yaml <non-root-user>@<minion-machine>:
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#. Prepare the configuration file::
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cp /usr/share/python-tripleoclient/minion.conf.sample ~/minion.conf
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Update the settings in this file to match the desired configuration. The
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options in the minion.conf are similarly configured as the undercloud.conf
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on the undercloud node. It is important to configure the `minion_local_ip`
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and the `minion_local_interface` to match the available interfaces on the
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minion system.
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.. note::
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The minion configured interface and ip must be on the control plane network.
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#. Run the command to install the minion:
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To deploy a minion::
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openstack undercloud minion install
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#. Verify services
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- Heat Engine
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By default only the heat-engine service is configured. To verify it has
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been configured correctly, run the following on the undercloud::
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source ~/stackrc
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openstack orchestration service list
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Example output::
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(undercloud) [stack@undercloud ~]$ openstack orchestration service list
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+------------------------+-------------+--------------------------------------+------------------------+--------+----------------------------+--------+
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| Hostname | Binary | Engine ID | Host | Topic | Updated At | Status |
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+------------------------+-------------+--------------------------------------+------------------------+--------+----------------------------+--------+
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| undercloud.localdomain | heat-engine | b1af4e18-6859-4b73-b1cf-87674bd0ce1f | undercloud.localdomain | engine | 2019-07-25T23:19:34.000000 | up |
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| minion.localdomain | heat-engine | 3a0d7080-06a9-4049-bb00-dbdcafbce0fc | minion.localdomain | engine | 2019-07-25T23:19:24.000000 | up |
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| undercloud.localdomain | heat-engine | f6ccea46-2b30-4869-b06f-935c342a9ed6 | undercloud.localdomain | engine | 2019-07-25T23:19:34.000000 | up |
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| minion.localdomain | heat-engine | eef759de-f7d3-472a-afbc-878eb6a3b9c0 | minion.localdomain | engine | 2019-07-25T23:19:24.000000 | up |
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| minion.localdomain | heat-engine | 7f076afe-5116-45ad-9f08-aab7fbfda40b | minion.localdomain | engine | 2019-07-25T23:19:24.000000 | up |
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| undercloud.localdomain | heat-engine | 038ead61-91f1-4739-8537-df63a9e2c917 | undercloud.localdomain | engine | 2019-07-25T23:19:34.000000 | up |
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| undercloud.localdomain | heat-engine | f16a4f55-b053-4650-9202-781aef55698e | undercloud.localdomain | engine | 2019-07-25T23:19:36.000000 | up |
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| minion.localdomain | heat-engine | e853d9c9-9f75-4958-ad9b-49e4b63b79b2 | minion.localdomain | engine | 2019-07-25T23:19:24.000000 | up |
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+------------------------+-------------+--------------------------------------+------------------------+--------+----------------------------+--------+
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- Ironic Conductor
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If the ironic conductor service has been enabled, run the following on the
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undercloud::
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source ~/stackrc
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openstack baremetal conductor list
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Example output::
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(undercloud) [stack@undercloud ~]$ openstack baremetal conductor list
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+------------------------+-----------------+-------+
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| Hostname | Conductor Group | Alive |
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+------------------------+-----------------+-------+
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| undercloud.localdomain | | True |
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| minion.localdomain | | True |
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+------------------------+-----------------+-------+
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@ -8,6 +8,7 @@ TripleO Install Guide
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introduction/introduction
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environments/environments
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installation/installation
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advanced_deployment/undercloud_minion
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basic_deployment/basic_deployment_cli
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basic_deployment/basic_deployment_ui
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basic_deployment/tempest
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