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o o@�d�K � @ s� U d Z ddlZddlZddlZddlZddlmZ ddlmZ ddl m Z m Z m Z ddl mZ ddlmZ ddlmZmZ dd lmZ d Zed �Zd gZd ddeeeed�geg d�Zeed< ee�Z dZe� e�Z dZ e� e �Z e� de �Z dZ!dZ"dZ#dZ$e�%e&�Z'dd� Z(d d � Z)d d � Z*d5d d!�Z+d5d"d#�Z,d6d$d%�Z-d&e.d'e.d(dfd)d*�Z/d7d+d,�Z0d-d.� Z1d/e.d0ed1ed2e2d(df d3d4�Z3dS )8z-Mounts: Configure mount points and swap files� N)� whitespace)�dedent)�subp� type_utils�util)�Cloud)�Config)� MetaSchema� get_meta_doc)� PER_INSTANCEa This module can add or remove mountpoints from ``/etc/fstab`` as well as configure swap. The ``mounts`` config key takes a list of fstab entries to add. Each entry is specified as a list of ``[ fs_spec, fs_file, fs_vfstype, fs_mntops, fs-freq, fs_passno ]``. For more information on these options, consult the manual for ``/etc/fstab``. When specifying the ``fs_spec``, if the device name starts with one of ``xvd``, ``sd``, ``hd``, or ``vd``, the leading ``/dev`` may be omitted. Any mounts that do not appear to either an attached block device or network resource will be skipped with a log like "Ignoring nonexistent mount ...". Cloud-init will attempt to add the following mount directives if available and unconfigured in `/etc/fstab`:: mounts: - ["ephemeral0", "/mnt", "auto","defaults,nofail,x-systemd.requires=cloud-init.service", "0", "2"] - ["swap", "none", "swap", "sw", "0", "0"] In order to remove a previously listed mount, an entry can be added to the `mounts` list containing ``fs_spec`` for the device to be removed but no mountpoint (i.e. ``[ swap ]`` or ``[ swap, null ]``). The ``mount_default_fields`` config key allows default options to be specified for the values in a ``mounts`` entry that are not specified, aside from the ``fs_spec`` and the ``fs_file``. If specified, this must be a list containing 6 values. It defaults to:: mount_default_fields: [none, none, "auto","defaults,nofail,x-systemd.requires=cloud-init.service", "0", "2"] Non-systemd init systems will vary in ``mount_default_fields``. Swap files can be configured by setting the path to the swap file to create with ``filename``, the size of the swap file with ``size`` maximum size of the swap file if using an ``size: auto`` with ``maxsize``. By default no swap file is created. a< # Mount ephemeral0 with "noexec" flag, /dev/sdc with mount_default_fields, # and /dev/xvdh with custom fs_passno "0" to avoid fsck on the mount. # Also provide an automatically sized swap with a max size of 10485760 # bytes. mounts: - [ /dev/ephemeral0, /mnt, auto, "defaults,noexec" ] - [ sdc, /opt/data ] - [ xvdh, /opt/data, auto, "defaults,nofail", "0", "0" ] mount_default_fields: [None, None, auto, "defaults,nofail", "0", "2"] swap: filename: /my/swapfile size: auto maxsize: 10485760 �all� cc_mounts�Mountsz%Configure mount points and swap filesz� # Create a 2 GB swap file at /swapfile using human-readable values swap: filename: /swapfile size: 2G maxsize: 2G )�id�name�title� description�distros�examples� frequency�activate_by_schema_keys�metaz&^([x]{0,1}[shv]d[a-z][0-9]*|sr[0-9]+)$z^.+:.*z[%s]+z /etc/fstabzcomment=cloudconfig� i @c C s8 | dv rdS dD ]}| � |�r| �d�dkr dS qdS )N)�ami�root�swapT)� ephemeral�ebs�:���F)� startswith�find)r �enumname� r# �</usr/lib/python3/dist-packages/cloudinit/config/cc_mounts.py�is_meta_device_name{ s �r% c C s t �| �rdS dS )NTF)�NETWORK_NAME_RE�match)r r# r# r$ �is_network_device� s r( c C sH t |�d|f d|f g}|D ]}d| |f }tj�|�r!| S qd S )Nzp%sz-part%sz%s%s)�str�os�path�exists)� device_path�partition_number�potential_suffixes�suffix�potential_partition_devicer# r# r$ � _get_nth_partition_for_device� s � �r2 c C sX t j�| ��d�d }t j�d|�}|d ur&t j�|t j�|��d�d �}t j�|�S )N�/r z /sys/block/)r* r+ �realpath�split�joinr, )r- �partition_path� device_name�sys_pathr# r# r$ �_is_block_device� s � r: c C s t �d| � | }|dkrd}t �d� t| �r| S t�|�\}}|}|r5|�||�}||kr5t �d||� t|�rS||�}|sAd S |�d�sKd|f }t �d||� n t� | �r]d|f }d }|d u rit |d �}n t ||�}|d u rtd S t ||�r�|d ur|S |S d S ) Nz+Attempting to determine the real name of %sr � ephemeral0z2Adjusted mount option from ephemeral to ephemeral0z Mapped device alias %s to %sr3 z/dev/%sz Mapped metadata name %s to %s� ) �LOG�debugr( r �expand_dotted_devname�getr% r �DEVICE_NAME_REr' r2 r: )� startname� transformer�aliases�devnamer- r. �origr7 r# r# r$ �sanitize_devname� sF � rG c C s` | d u r t �� d } | d }d|| d�}|d u r |d u r |}n2|rKt�|�}|j|j }||d< |d u r>tt|d �|�}n||d krJt|d �}n|d u rQ|}||d< | dt k r^| }n| d t k ridt }n t t � | t ��t }t||�}||d < i } |� � D ]\} } t | t�r�d | t | | < q�| | | < q�t�d | d | d | d | d | d � |S )N�total� �na)�avail�max_in�memrK � g�������?�max� �sizez%s MBzCsuggest %s swap for %s memory with '%s' disk given max=%s [max=%s]'rM rL )r � read_meminfor* �statvfs�f_frsize�f_bfree�min�int�GB�round�math�sqrt�items� isinstance�MBr= r> ) �memsize�maxsize�fsys�sugg_max�inforS rK �minsizerQ �pinfo�k�vr# r# r$ �suggested_swapsize� sN � �rh �fnamerQ �returnc s� d� � �fdd�}t j�| �}t�|� t�|�d ��dkr%t�� dk s)�dkr0|| |d� n z|| |d � W n tjyM t � d � || |d� Y nw t j� | �rZt� | d � z t�d | g� W d S tjyr t� | � � w )zSize is in MiB.z6Failed to create swapfile '%s' of size %sMB via %s: %sc s� t �d| �|� |dkrddd| | g}n|dkr$ddd| dd | g}z tj|d d � W d S tjyJ } zt �� | |||� t�| � � d }~ww ) Nz3Creating swapfile in '%s' on fstype '%s' using '%s'� fallocatez-lz%sM�ddz if=/dev/zerozof=%szbs=1Mzcount=%sT)�capture)r= r> r �ProcessExecutionErrorrc r �del_file)ri rQ �method�cmd�e��errmsg�fstyper# r$ � create_swap s. �� ��z$create_swapfile.<locals>.create_swapr< �xfs)rN � �btrfsrl rk z4fallocate swap creation failed, will attempt with ddi� �mkswapN)r* r+ �dirnamer � ensure_dir�get_mount_info�kernel_versionr rn r= rc r, �chmodro )ri rQ rv �swap_dirr# rs r$ �create_swapfile s, � �r� c C s� t j�| �}t|��� dkr2zt�� d }W n ty% t� d� Y dS w t� |� t |||d�}tt |d ��}|sCt� d� dS tj tj dt| |gd � | S ) z� fname: full path string of filename to setup size: the size to create. set to "auto" for recommended maxsize: the maximum size �autorH z)Not creating swap: failed to read meminfoN)ra r` r_ r z'Not creating swap: suggested size was 0zSetting up swap file)�msg�func�args)r* r+ r{ r) �lowerr rR �IOErrorr= r> r| rh rW �log_timer� )ri rQ r` r� r_ �mibsizer# r# r$ �setup_swapfileG s. � � �r� c C sZ t | t�s t�d� dS | �dd�}| �dd�}| �dd�}|r"|s)t�d� dS tj�|�rstj�d �s=t�d |� |S z$t � d �� � D ]}|� |d �rYt�d |� | W S qEt�d |� W n t yr t�d|� | Y S w z t |t�r�|dkr�t �|�}t |t�r�t �|�}t|||d�W S t y� } z t�d|� W Y d}~dS d}~ww )zahandle the swap config, calling setup_swap if necessary. return None or (filename, size) z%input for swap config was not a dict.N�filenamez /swap.imgrQ r r` zno need to setup swapz /proc/swapsz:swap file %s exists, but no /proc/swaps exists, being safe� zswap file %s already in usez+swap file %s exists, but not in /proc/swapsz.swap file %s exists. Error reading /proc/swapsr� )ri rQ r` zfailed to setup swap: %s)r] �dictr= �warningr@ r> r* r+ r, r � load_file� splitlinesr � Exceptionr) � human2bytesr� )�swapcfgri rQ r` �linerr r# r# r$ �handle_swapcfgi sP � � �� ��r� r �cfg�cloudr� c $ s� d}|j �� }|r d}d d d|ddg}|�d|�}ddd|d ddgg d �g}g }d |v r1|d }t�d |� g } i } g } tj�t�rst � t�� � D ](} t | v rV| � | � qJzt�| �} W n tyf Y nw | | | d < | � | � qJ|�di �}tt|��D ]r}t|| t�s�t�d|d t�|| �� qt|| d �}t||j|d�}||kr�t�d||� |d u r�t�d|� q|| v r�t�d|| | � q||| d < tt|| ��D ]}|| | d u r�q�t|| | �|| |< q�qtt|��D ]U}tt|��D ](}t|| �|k�r|| � || � �q || | d u �r'|| || |< �q || d d u �rMt|�D ]}|| d || d k�rKd || d< �q6q�|D ]a}|d }t||j|d�}||k�rjt�d||� |d u �rwt�d|� �qP|| v �r�t�d|| | � �qP||d < d}|D ]}|d |d k�r�d} n�q�|�r�t�d|� �qP|� |� �qPg }|D ]}|d d u �r�t�d|d � �q�|� |� �q�t |�di ��}|�r�|� |d dd ddg� t|�d k�r�t�d � d S g }d}d}g } |D ]-} d | d t f | d < | d dk�rd}| d � d!��r"| � | d � |� d"� | �� �q�d#d$� t � � � � D �} | D ]&} zt �!| � W n t�yS t �"td%| � Y nw |�s^| | v�r^d}�q9d&d$� |D �� d'd$� | D ��� fd(d$��D ��fd)d$�� D � } | �#|� d*d+� | � } t �$t| � g }!|�r�|!� d,d-g� t| �d k�r�t�d.� nt�d/| � d}|�r�|!� d0d-g� |�r�|!� d1d2g� d3}"|!D ]0}#d4d5� |#� }"zt%�%|#� t�|"d6� W �q� t%j&�y� t�|"d7� t �"t|"d7� Y �q�w d S )8Nzdefaults,nobootwaitz=defaults,nofail,x-systemd.requires=cloud-init.service,_netdevr� �0�2�mount_default_fieldsr; z/mnt� )r �noner �swr� r� �mountszmounts configuration is %sr �device_aliasesz,Mount option %s not a list, got a %s insteadr< )rD zchanged %s => %sz#Ignoring nonexistent named mount %sz&Device %s already defined in fstab: %sz changed default device %s => %sz+Ignoring nonexistent default named mount %sFTz-Not including %s, already previously includedz$Skipping nonexistent device named %sr r� r� z No modifications to fstab neededz%s,%srI r3 � c S s g | ] \}}d |v r|d �qS )� mountpointr# )�.0rf rg r# r# r$ � <listcomp>: s zhandle.<locals>.<listcomp>z Failed to make '%s' config-mountc S � g | ]}t �d |��qS �r� ��WS�sub�r� �nr# r# r$ r� H � c S r� r� r� r� r# r# r$ r� I r� c � g | ] }|� vrd | �qS )z- r# )r� �drop)�saddsr# r$ r� K s c r� )z+ r# )r� �add)�sdropsr# r$ r� K s z%s � �swaponz-az No changes to /etc/fstab made.zChanges to fstab: %s�mount� systemctlz daemon-reloadz#Activating swap and mounts with: %szActivate mounts: %s:r� �PASS�FAIL)'�distro� uses_systemdr@ r= r> r* r+ r, � FSTAB_PATHr r� r� � MNT_COMMENT�appendr� r5 r� �range�lenr] �listr� r �obj_namer) rG �device_name_to_devicerc r� r r6 r� r\ r| �logexc�extend� write_filer rn )$r r� r� r� � def_mnt_optsr� �defvals�defmnts�cfgmnt� fstab_lines� fstab_devs� fstab_removedr� �toksr� �i�start� sanitized�j�defmnt� cfgmnt_has�cfgm�actlist�x�swapret�cc_lines�needswap�need_mount_all�dirs� mount_points�d�sops�contents� activate_cmds�fmtrq r# )r� r� r$ �handle� sH � � � �� � �� �� �� ���� ��r� )N)NNN)NN)4�__doc__�loggingrZ r* �re�stringr �textwrapr � cloudinitr r r �cloudinit.cloudr �cloudinit.configr �cloudinit.config.schemar r �cloudinit.settingsr �MODULE_DESCRIPTION�exampler r �__annotations__�DEVICE_NAME_FILTER�compilerA �NETWORK_NAME_FILTERr& r� r� r� r^ rX � getLogger�__name__r= r% r( r2 r: rG rh r) r� r� r� r� r� r# r# r# r$ �<module> sf (��� � 19 8""0
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