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j$�Z%dd� Z&dd� Z'dd � Z(d d � Z)d d � Z*d!d"� Z+d#d$� Z,d%d&� Z-efd'd
�Z.efd(d)�Z/efd*d+�Z0efd,d-�Z1d.d/� Z2d0d1� Z3e%e
j4ffe%e
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j5ffgZ6d2d3� Z7d4d5� Z8dBd7d8�Z9d9d:� Z:d;d<� Z;d=d>� Z<d?d@� Z=edAk�r�e=� dS )Ca� Cloud-Init DataSource for VMware
This module provides a cloud-init datasource for VMware systems and supports
multiple transports types, including:
* EnvVars
* GuestInfo
Netifaces (https://github.com/al45tair/netifaces)
Please note this module relies on the netifaces project to introspect the
runtime, network configuration of the host on which this datasource is
running. This is in contrast to the rest of cloud-init which uses the
cloudinit/netinfo module.
The reasons for using netifaces include:
* Netifaces is built in C and is more portable across multiple systems
and more deterministic than shell exec'ing local network commands and
parsing their output.
* Netifaces provides a stable way to determine the view of the host's
network after DHCP has brought the network online. Unlike most other
datasources, this datasource still provides support for JINJA queries
based on networking information even when the network is based on a
DHCP lease. While this does not tie this datasource directly to
netifaces, it does mean the ability to consistently obtain the
correct information is paramount.
* It is currently possible to execute this datasource on macOS
(which many developers use today) to print the output of the
get_host_info function. This function calls netifaces to obtain
the same runtime network configuration that the datasource would
persist to the local system's instance data.
However, the netinfo module fails on macOS. The result is either a
hung operation that requires a SIGINT to return control to the user,
or, if brew is used to install iproute2mac, the ip commands are used
but produce output the netinfo module is unable to parse.
While macOS is not a target of cloud-init, this feature is quite
useful when working on this datasource.
For more information about this behavior, please see the following
PR comment, https://bit.ly/3fG7OVh.
The authors of this datasource are not opposed to moving away from
netifaces. The goal may be to eventually do just that. This proviso was
added to the top of this module as a way to remind future-us and others
why netifaces was used in the first place in order to either smooth the
transition away from netifaces or embrace it further up the cloud-init
stack.
� N)�dmi)�log)�sources�util)�ProcessExecutionError�subp�whichz /sys/class/dmi/id/product_uuidzNo value foundZenvvar� guestinfozvmware-rpctoolZredactzcleanup-guestinfo�
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Setting the hostname:
The hostname is set by way of the metadata key "local-hostname".
Setting the instance ID:
The instance ID may be set by way of the metadata key "instance-id".
However, if this value is absent then the instance ID is read
from the file /sys/class/dmi/id/product_uuid.
Configuring the network:
The network is configured by setting the metadata key "network"
with a value consistent with Network Config Versions 1 or 2,
depending on the Linux distro's version of cloud-init:
Network Config Version 1 - http://bit.ly/cloudinit-net-conf-v1
Network Config Version 2 - http://bit.ly/cloudinit-net-conf-v2
For example, CentOS 7's official cloud-init package is version
0.7.9 and does not support Network Config Version 2. However,
this datasource still supports supplying Network Config Version 2
data as long as the Linux distro's cloud-init package is new
enough to parse the data.
The metadata key "network.encoding" may be used to indicate the
format of the metadata key "network". Valid encodings are base64
and gzip+base64.
ZVMwareNc C s$ t jj| ||||� d | _t| _d S )N)r �
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_get_data loads the metadata, userdata, and vendordata from one of
the following locations in the given order:
* envvars
* guestinfo
Please note when updating this function with support for new data
transports, the order should match the order in the dscheck_VMware
function from the file ds-identify.
N� �metadataZuserdataZ
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zDataSourceVMware._get_datac C s< t | j�}tjd|� t|� tj| j|g�| _| j� dS )a( setup(is_new_instance)
This is called before user-data and vendor-data have been processed.
Unless the datasource has set mode to 'local', then networking
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brought up the OS at this point.
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z!DataSourceVMware._get_subplatformc C sB d| j krtjd� n tjd� d| jj� i| j d< | j d d S )N�networkz using metadata network configz using fallback network config�config)r r r r Zgenerate_fallback_config)r r r r �network_config� s
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C sT | j rd| j kr| j d S ttd��&}t|j� �j� j� | j d< | j d S Q R X d S )Nz instance-id�r)r �open�PRODUCT_UUID_FILE_PATH�str�read�rstripr! )r Zid_filer r r �get_instance_id s
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z$DataSourceVMware.get_public_ssh_keysc C sH d }t | jkr| jt }nt| jkr.| jt }| jtkrDt|| j� d S )N)�REDACTr �CLEANUP_GUESTINFOr r" �guestinfo_redact_keysr )r Zkeys_to_redactr r r r( s
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__module__� __qualname__�__doc__Zdsnamer r) r. r% �propertyr3 r: r@ r( r r r r r
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a bytes class or a string.
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handle_returned_guestinfo_val returns the provided value if it is
not empty or set to GUESTINFO_EMPTY_YAML_VAL, otherwise None is
returned
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guestinfo.r )rN r r r r0 r s r0 c C s dt | � j� jddd�S )Nzvmx.�.�_� ���)r0 �upper�replace)rN r r r r/ v s r/ c C s, t | �}|sd S t | d �}tt| �||�S )Nz .encoding)�guestinfo_envvar_get_valuerQ r/ )rN rT rO r r r r z s
r c C s t | �}t| tjj|d��S )Nr )r/ rY r r r )rN Zenv_keyr r r r` � s r` c C s0 t | |�}|sdS t | d |�}tt| �||�S )zj
guestinfo returns the guestinfo value for the provided key, decoding
the value when required
Nz .encoding)�guestinfo_get_valuerQ r0 )rN r rT rO r r r r � s
c C s� t jd| � yHt|dt| � g�\}}|tkr<t jd| � n|sLt jd| � t| |�S tk
r� } z.|jtkr~t jd| � nt j
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Returns a guestinfo value for the specified key.
z"Getting guestinfo value for key %sz info-get zNo value found for key %sz(Failed to get guestinfo value for key %sz,Failed to get guestinfo value for key %s: %sNz%Unexpected error while trying to get zguestinfo value for key %sz?Unexpected error while trying to get guestinfo value for key %s) r r r r0 �NOVALr# rY r �stderrr �logexc� Exception)rN r �stdoutrc r# r r r ra � s2
ra c C s� |dkr d}t jd| |� y t|dt| �|f g� dS tk
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Sets a guestinfo value for the specified key. Set value to an empty string
to clear an existing guestinfo key.
r � z$Setting guestinfo key=%s to value=%szinfo-set %s %sTz.Failed to set guestinfo key=%s to value=%s: %sNz%Unexpected error while trying to set z guestinfo key=%s to value=%szAUnexpected error while trying to set guestinfo key=%s to value=%s)r r r r0 r r rd re )rN �valuer r# r r r rW � s.
rW c C s� | sdS t | �ttfkr | g} x`| D ]X}t|�}tjd|� t|t|�sTtjd|� tjd|� t|d d|�s$tjd|� q$W dS )z�
guestinfo_redact_keys redacts guestinfo of all of the keys in the given
list. each key will have its value set to "---". Since the value is valid
YAML, cloud-init can still read it if it tries.
Nz clearing %szfailed to clear %szclearing %s.encodingz .encodingr zfailed to clear %s.encoding) �type�list�tupler0 r r$ rW rS r# )�keysr rN r? r r r rC � s
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load first attempts to unmarshal the provided data as JSON, and if
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N)r Z load_json�jsonZJSONDecodeError� TypeErrorZ load_yaml)rP r r r r' � s
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configuration.
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)r Zlist_from_depends� datasources)Zdependsr r r �get_datasource_list0 s rv c
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| � nd| d k�r| d d }|�rr| �rr|jt j�} | �rrt| �dk�rXtjd|| � nd| d k�rr| d d }| �r�|�r�| jt j�}|�r�t|�dk�r�tjd|
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aI
Returns the default IPv4 and IPv6 addresses based on the device(s) used for
the default route. Please note that None may be returned for either address
family if that family has no default route or if there are multiple
addresses associated with the device used by the default route for a given
address.
�defaultNr\ z,device %s has more than one ipv4 address: %s�addrr z,device %s has more than one ipv6 address: %s)NN)NN) � netifaces�gateways�AF_INET�AF_INET6r � ifaddressesrR r Zwarning)
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rP Y n"X x |D ]}|d rX|d } P qXW | S )zoGet fully qualified domain name from name.
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z0.0.0.0Nr � )�stripr � get_hostname�socketZ getaddrinfoZ
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Returns false if the address is loopback, link local or unspecified;
otherwise true is returned.
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Returns host information such as the host name and network interfaces.
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interfaces)zby-maczby-ipv4zby-ipv6�hostnamezlocal-hostnameZlocal_hostnamezby-maczby-ipv4zby-ipv6Nrx r z00:00:00:00:00:00r r �mac)rp � OrderedDictr� r r� r� rV rX ry r� r} r ZAF_LINKr{ r| r� �appendrs rt )r- r� Z default_ipv4Z default_ipv6Zby_mac�by_ipv4�by_ipv6ZifacesZdev_nameZ addr_famsZaf_linkr~ r r� rN rT Z
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NFr1 r� zby-ipv4zby-ipv6r z<waiting on network: wait4=%s, ready4=%s, wait6=%s, ready6=%sr\ zwaiting on network complete)�WAIT_ON_NETWORK�WAIT_ON_NETWORK_IPV4ro �boolr Ztranslate_bool�WAIT_ON_NETWORK_IPV6r� r rR r r �timeZsleep)
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