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Diffstat (limited to 'playbooks/openstack/advanced-configuration.md')
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diff --git a/playbooks/openstack/advanced-configuration.md b/playbooks/openstack/advanced-configuration.md index e8f4cfc32..8df3c40b0 100644 --- a/playbooks/openstack/advanced-configuration.md +++ b/playbooks/openstack/advanced-configuration.md @@ -273,6 +273,38 @@ openshift_openstack_cluster_node_labels: mylabel: myvalue ``` +`openshift_openstack_provision_user_commands` allows users to execute +shell commands via cloud-init for all of the created Nova servers in +the Heat stack, before they are available for SSH connections. +Note that you should use custom ansible playbooks whenever +possible, like this `provision_install_custom.yml` example playbook: +``` +- import_playbook: openshift-ansible/playbooks/openstack/openshift-cluster/provision.yml + +- name: My custom actions + hosts: cluster_hosts + tasks: + - do whatever you want here + +- import_playbook: openshift-ansible/playbooks/openstack/openshift-cluster/install.yml +``` +The playbook leverages a two existing provider interfaces: `provision.yml` and +`install.yml`. For some cases, like SSH keys configuration and coordinated reboots of +servers, the cloud-init runcmd directive may be a better choice though. User specified +shell commands for cloud-init need to be either strings or lists, for example: +``` +- openshift_openstack_provision_user_commands: + - set -vx + - systemctl stop sshd # fences off ansible playbooks as we want to reboot later + - ['echo', 'foo', '>', '/tmp/foo'] + - [ ls, /tmp/foo, '||', true ] + - reboot # unfences ansible playbooks to continue after reboot +``` + +**Note** To protect Nova servers from recreating when the user-data changes via +`openshift_openstack_provision_user_commands`, the +`user_data_update_policy` parameter configured to `IGNORE` for Heat resources. + The `openshift_openstack_nodes_to_remove` allows you to specify the numerical indexes of App nodes that should be removed; for example, ['0', '2'], |