
­­­­­­­­­­­­­­­­­­
<!DOCTYPE html>
<html>
3
\me=                 @   s.  d dl Z d dlZd dlZd dlZd dlZd dlmZ d dlZd dlm	Z	 d dl
mZ d dlmZ d dlmZmZmZmZmZ d dlmZmZ d dlmZ d d	lmZmZ d d
lmZ d dlmZ ej e!Z"ddgZ#dZ$dZ%dZ&G dd dej'j(Z)dd Z*dd Z+G dd dej,Z-e-ej.ffgZ/dd Z0dS )    N)urlparse)ConnectionError)HTTPConnection)PoolManager)dminetsources
url_helperutil)
EventScope	EventType)NoDHCPLeaseError)EphemeralDHCPv4EphemeralIPv6Network)DataSourceHostname)ProcessExecutionErrorzhttp://169.254.42.42zhttp://[fd00:42::42]      
   c                   s*   e Zd ZdZ fddZdddZ  ZS )SourceAddressAdapterzF
    Adapter for requests to choose the local address to bind to.
    c                s   || _ tt| jf | d S )N)source_addresssuperr   __init__)selfr   kwargs)	__class__ (/usr/lib/python3.6/DataSourceScaleway.pyr   +   s    zSourceAddressAdapter.__init__Fc             C   s0   t jtjtjdfg }t|||| j|d| _d S )N   )Z	num_poolsmaxsizeblockr   socket_options)r   Zdefault_socket_optionssocketZ
SOL_SOCKETZSO_REUSEPORTr   r   Zpoolmanager)r   Zconnectionsr   r    r!   r   r   r   init_poolmanager/   s    z%SourceAddressAdapter.init_poolmanager)F)__name__
__module____qualname____doc__r   r#   __classcell__r   r   )r   r   r   &   s   r   c             C   s`   y&t j| d|d|dd d}tj|jS  t jk
rZ } z|jdkrHdS  W Y dd}~X nX dS )aQ  
    Retrieve user data or vendor data.

    Scaleway user/vendor data API returns HTTP/404 if user/vendor data is not
    set.

    This function calls `url_helper.readurl` but instead of considering
    HTTP/404 as an error that requires a retry, it considers it as empty
    user/vendor data.

    Also, be aware the user data/vendor API requires the source port to be
    below 1024 to ensure the client is root (since non-root users can't bind
    ports below 1024). If requests raises ConnectionError (EADDRINUSE), the
    caller should retry to call this function on an other port.
    Nr   c             S   s   |j dkot|jtjj S )Ni  )code
isinstancecauserequests
exceptionsr   )_excr   r   r   <lambda>W   s   
z%query_data_api_once.<locals>.<lambda>)datatimeoutretriesZsessionZexception_cbi  )r	   readurlr
   decode_binarycontentsUrlErrorr)   )api_addressr2   requests_sessionrespr/   r   r   r   query_data_api_once<   s    
r;   c             C   s"  xt dt|dD ] }ytjd| | tj }d}yRt|j}|}|d dkr^|dd }tj	|dtj
dd d }	|	tjkrd	}W n tk
r   Y nX |jd
t||fd t|||d}
tjd|  |
S  tjk
r } z$tjd| | tjd |}wW Y dd}~X qX qW |dS )a/  Get user or vendor data.

    Handle the retrying logic in case the source port is used.

    Scaleway metadata service requires the source port of the client to
    be a privileged port (<1024).  This is done to ensure that only a
    privileged user on the system can access the metadata service.
    r   r   z*Trying to get %s data (bind on port %d)...z0.0.0.0r   [N)protoz0::zhttp://)r   )r2   r9   z%s-data downloadedz%Error while trying to get %s data: %s   )rangemaxLOGdebugr,   ZSessionr   netlocr"   getaddrinfoIPPROTO_TCPAF_INET6
ValueErrorZmountr   r;   r	   r7   warningtimeZsleep)Zapi_typer8   r3   r2   Zportr9   Z	localhostZurl_addressaddress
addr_protor1   r/   last_excr   r   r   query_data_apid   s>    




rN   c                   s   e Zd ZdZejejejej	hiZ
 fddZdd Zdd Zedd	 Zd
d Zdd Zedd Zedd Zdd Zdd ZdddZedd Zedd Z  ZS )DataSourceScalewayScalewayc                s   t t| j||| tjtj|ddgi g| _t| jjdt	| _
t| jjdt| _t| jjdt| _d | _tj| _t| _d | _d | _d | _d| _d| jj kr|  j| jd 7  _d S )NZ
datasourcerP   r3   r2   max_waitTmetadata_urls)r   rO   r   r
   ZmergemanydictZget_cfg_by_pathZds_cfgintgetDEF_MD_RETRIESr3   DEF_MD_TIMEOUTr2   DEF_MD_MAX_WAITrQ   _fallback_interfacer   UNSET_network_configDS_BASE_URLSrR   userdata_urlvendordata_urlephemeral_fixed_addresshas_ipv4keys)r   Zsys_cfgdistropaths)r   r   r   r      s    zDataSourceScaleway.__init__c             C   s|   t j  }tj|| j| jdd\}}|rZtjd| | d| _| d| _| d| _	dS tjd|t
t j  |  tdS )	zO
        Define metadata_url based upon api-metadata URL availability.
        F)urlsrQ   r2   Zconnect_synchronouslyz%s is reachablez/conf?format=jsonz/user_data/cloud-initz/vendor_data/cloud-initNz3Unable to reach api-metadata at %s after %s seconds)rJ   r	   Zwait_for_urlrQ   r2   rB   rC   metadata_urlr\   r]   rS   r   )r   rc   Z
start_timeZ	avail_urlr.   r   r   r   _set_metadata_url   s"    z$DataSourceScaleway._set_metadata_urlc             C   sZ   t j| j| j| jd}tjtj|j	| _
td| j| j| j| _td| j| j| j| _d S )N)r2   r3   z	user-datazvendor-data)r	   r4   rd   r2   r3   jsonloadsr
   r5   r6   metadatarN   r\   Zuserdata_rawr]   Zvendordata_raw)r   r:   r   r   r   _crawl_metadata   s    z"DataSourceScaleway._crawl_metadatac              C   s>   t jd} | dkrdS tjjdr&dS tj }d|kr:dS dS )a   
        There are three ways to detect if you are on Scaleway:

        * check DMI data: not yet implemented by Scaleway, but the check is
          made to be future-proof.
        * the initrd created the file /var/run/scaleway.
        * "scaleway" is in the kernel cmdline.
        zsystem-manufacturerrP   Tz/var/run/scalewayZscalewayN)r   Zread_dmi_dataospathexistsr
   Zget_cmdline)Zvendor_nameZcmdliner   r   r   	ds_detect   s    

zDataSourceScaleway.ds_detectc             C   s   |dkrt jd| g S g }x|D ]~}t|j}|d dkrH|dd	 }tj|d tjdd d }|tjkr|dkr||g7 }q"q"|tjkr"|dkr"||g7 }q"q"W |S )
Nipv4ipv6zInvalid IP version : %sr   r<   r   )r=   )rn   ro   r?   )	rB   rC   r   rD   r"   rE   rF   ZAF_INETrG   )r   r=   rc   Zfiltered_urlsZurlrK   rL   r   r   r   _set_urls_on_ip_version   s$    




z*DataSourceScaleway._set_urls_on_ip_versionc          !   C   s4  | j d krtj | _ | jry`t| j| j H}tjtj	d| j
| jfd tjtj	d| jd |d | _d| jd< W d Q R X W n> tttfk
r } ztjtt| d| _W Y d d }~X nX | js0yVt| j| j > tjtj	d	| j
| jfd tjtj	d| jd d
| jd< W d Q R X W n tk
r.   dS X dS )Nz3Set api-metadata URL depending on IPv4 availability)logfuncmsgfuncargszCrawl of metadata service)rq   rr   rs   zfixed-addressrn   Z
net_in_useFz3Set api-metadata URL depending on IPv6 availabilityro   T)rX   r   find_fallback_nicr_   r   ra   r
   Zlog_timerB   rC   re   rR   ri   r^   rh   r   r   r   Zlogexcstrr   )r   rn   er   r   r   	_get_data  sV    





zDataSourceScaleway._get_datac          	   C   s  | j dkr tjdtj tj| _ | j tjkr2| j S | jdkrFtj | _| jd dkrFi }i }x| jd D ]}|d | j	krd|d< dd	d
g|d< qjd|j
 kr|d  |d  d|d  f7  < n|d  d|d  f|d< |d dkrj|d dd}d|j
 kr |d  |g7  < qj|g|d< qjW ||| j< d|d| _ ndd| j d}ddig}| jd r|dd| jd d  d| jd d  ddd| jd d  dgdg7 }||d < d!|gd"| _ tjd#| j  | j S )$z`
        Configure networking according to data received from the
        metadata API.
        Nz5Found None as cached _network_config. Resetting to %sZ
private_ipZ
public_ipsrK   TZdhcp4z169.254.42.42/32z
62.210.0.1)toviaroutesZ	addresses/netmaskZfamilyZinet6gatewayz::/0)rz   ry   r   )versionZ	ethernetsZphysicalz%s)typenamer   ro   Zstaticz::0)Znetworkprefixr~   )r   rK   r}   r{   subnetsr   )r   configznetwork_config : %s)rZ   rB   rI   r   rY   rX   r   ru   rh   r^   r`   rC   )r   ZnetcfgZip_cfgZipZrouter   r   r   r   network_configM  sV    




z!DataSourceScaleway.network_configc             C   s   d S )Nr   )r   r   r   r   launch_index  s    zDataSourceScaleway.launch_indexc             C   s
   | j d S )Nid)rh   )r   r   r   r   get_instance_id  s    z"DataSourceScaleway.get_instance_idc             C   sb   dd | j d D }d}t|}x<| j jdg D ]*}|j|s@q0|j||d  jdd q0W |S )Nc             S   s   g | ]}|d  qS )keyr   ).0r   r   r   r   
<listcomp>  s    z:DataSourceScaleway.get_public_ssh_keys.<locals>.<listcomp>Zssh_public_keyszAUTHORIZED_KEY=Ztagsr.    )rh   lenrT   
startswithappendreplace)r   Zssh_keysZakeypreZplentagr   r   r   get_public_ssh_keys  s    
z&DataSourceScaleway.get_public_ssh_keysFc             C   s   t | jd dS )NZhostnameF)r   rh   )r   ZfqdnZ
resolve_ipZmetadata_onlyr   r   r   get_hostname  s    zDataSourceScaleway.get_hostnamec             C   s   d S )Nr   )r   r   r   r   availability_zone  s    z$DataSourceScaleway.availability_zonec             C   s   d S )Nr   )r   r   r   r   region  s    zDataSourceScaleway.region)FFF)r$   r%   r&   Zdsnamer   ZNETWORKr   ZBOOT_NEW_INSTANCEZBOOTZBOOT_LEGACYZdefault_update_eventsr   re   ri   staticmethodrm   rp   rx   propertyr   r   r   r   r   r   r   r(   r   r   )r   r   rO      s$   
AM
rO   c             C   s   t j| tS )N)r   Zlist_from_dependsdatasources)Zdependsr   r   r   get_datasource_list  s    r   )1rf   Zloggingrj   r"   rJ   Zurllib.parser   r,   Zrequests.exceptionsr   Zurllib3.connectionr   Zurllib3.poolmanagerr   Z	cloudinitr   r   r   r	   r
   Zcloudinit.eventr   r   Zcloudinit.net.dhcpr   Zcloudinit.net.ephemeralr   r   Zcloudinit.sourcesr   Zcloudinit.subpr   Z	getLoggerr$   rB   r[   rU   rW   rV   ZadaptersZHTTPAdapterr   r;   rN   Z
DataSourcerO   ZDEP_FILESYSTEMr   r   r   r   r   r   <module>   s8   
(4  $