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ntp configuration is specified, ntp will be installed. If there is a
default ntp config file in the image or one is present in the
distro's ntp package, it will be copied to a file with ``.dist``
appended to the filename before any changes are made. A list of ntp
pools and ntp servers can be provided under the ``ntp`` config key.
If no ntp ``servers`` or ``pools`` are provided, 4 pools will be used
in the format ``{0-3}.{distro}.pool.ntp.org``.z� # Override ntp with chrony configuration on Ubuntu
ntp:
enabled: true
ntp_client: chrony # Uses cloud-init default chrony configuration
a� # Provide a custom ntp client configuration
ntp:
enabled: true
ntp_client: myntpclient
config:
confpath: /etc/myntpclient/myntpclient.conf
check_exe: myntpclientd
packages:
- myntpclient
service_name: myntpclient
template: |
## template:jinja
# My NTP Client config
{% if pools -%}# pools{% endif %}
{% for pool in pools -%}
pool {{pool}} iburst
{% endfor %}
{%- if servers %}# servers
{% endif %}
{% for server in servers -%}
server {{server}} iburst
{% endfor %}
pools: [0.int.pool.ntp.org, 1.int.pool.ntp.org, ntp.myorg.org]
servers:
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- ntp.ubuntu.com
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When unprovided or 'auto' the default client preferred
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configuration is written.)r) r$ z� The executable name for the ``ntp_client``.
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selected ``ntp_client``.z� The systemd or sysvinit service name used to
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rD c C s( t j|�rdS |dkr dg}| |� dS )ah Install ntp client package if not already installed.
@param install_func: function. This parameter is invoked with the contents
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@param packages: list. This parameter defaults to ['ntp'].
@param check_exe: string. The name of a binary that indicates the package
the specified package is already installed.
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rE c C s t jj| �r tj| | d � dS )z�Rename any existing ntp client config file
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@param service_name: string. The name of the NTP client service.
@param servers: A list of strings specifying ntp servers. Defaults to empty
list.
@param pools: A list of strings specifying ntp pools. Defaults to empty
list.
@param path: A string to specify where to write the rendered template.
@param template_fn: A string to specify the template source file.
@param template: A string specifying the contents of the template. This
content will be written to a temporary file before being used to render
the configuration file.
@raises: ValueError when path is None.
@raises: ValueError when template_fn is None and template is None.
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S )aO Validate user-provided ntp:config option values.
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@param ntp_config: Dictionary of configuration value under 'ntp'.
@raises: ValueError describing invalid values provided.
z, z(Missing required ntp:config keys: {keys})�keysr r zJEither ntp:config:template or ntp:config:template_name values are requiredz ntp:config:r z6Expected a config file path {keypath}. Found ({value}))�keypath�valuer zHExpected a list of required package names for {keypath}. Found ({value})Nz5Expected a string type for {keypath}. Found ({value})z$Invalid ntp configuration:\n{errors}�
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