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heat_template_version: pike
# NOTE: You don't need to pass the parameter explicitly from the
# parent template, it can be specified via the parameter_defaults
# in the resource_registry instead, if you want to override the default
# and/or share values with other templates in the tree.
parameters:
extra_username:
type: string
default: extrauser
description: >
This is an example showing how you can do firstboot configuration
of the nodes via cloud-init. To enable this, replace the default
mapping of OS::TripleO::NodeUserData in ../overcloud_resource_registry*
resources:
userdata:
type: OS::Heat::MultipartMime
properties:
parts:
- config: {get_resource: user_config}
- config: {get_resource: ssh_config}
# Get cloud-init to create an extra user, in addition to the default for the
# distro. Note there are various options, including configuring ssh keys,
# but atm I can only see how to specify the keys explicitly, not via metadata
user_config:
type: OS::Heat::CloudConfig
properties:
cloud_config:
users:
- default
- name: {get_param: extra_username}
# Setup ssh key for the extra user to match the key installed for the default
# user, e.g that provided via the nova keypair on instance boot
ssh_config:
type: OS::Heat::SoftwareConfig
properties:
config:
str_replace:
template: |
#!/bin/bash
mkdir -p /home/$user/.ssh
chmod 700 /home/$user/.ssh
os-apply-config --key public-keys.0.openssh-key --type raw > /home/$user/.ssh/authorized_keys
chmod 600 /home/$user/.ssh/authorized_keys
chown -R $user:$user /home/$user/.ssh
params:
$user: {get_param: extra_username}
outputs:
# This means get_resource from the parent template will get the userdata, see:
# http://docs.openstack.org/developer/heat/template_guide/composition.html#making-your-template-resource-more-transparent
# Note this is new-for-kilo, an alternative is returning a value then using
# get_attr in the parent template instead.
OS::stack_id:
value: {get_resource: userdata}
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