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.. note::
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ÚallZcc_update_hostnamezUpdate HostnamezUpdate hostname and fqdna¡ # By default: when ``preserve_hostname`` is not specified cloud-init
# updates ``/etc/hostname`` per-boot based on the cloud provided
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# after boot cloud-init will no longer modify it.
#
# This default cloud-init behavior is equivalent to this cloud-config:
preserve_hostname: false
zh # Prevent cloud-init from updating the system hostname.
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ze # Prevent cloud-init from updating ``/etc/hostname``
preserve_hostname: true
z© # Set hostname to "external.fqdn.me" instead of "myhost"
fqdn: external.fqdn.me
hostname: myhost
prefer_fqdn_over_hostname: true
zÇ # Set hostname to "external" instead of "external.fqdn.me" when
# cloud metadata provides the ``local-hostname``: "external.fqdn.me".
prefer_fqdn_over_hostname: false
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