"T`F@s_dZddlmZddlZddlZddlZddlmZddlmZddlm Z dZ ej e Z dZ ej e Zej d eZd Zd ZejeZd d ZddZddZdddZddZdddddZeeddddZddddZddZdd ZdS)!a< Mounts ------ **Summary:** configure mount points and swap files 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. 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. ``[ sda1 ]`` or ``[ sda1, 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,nobootwait", "0", "2"] On a systemd booted system that default is the mostly equivalent:: mount_default_fields: [none, none, "auto", "defaults,nofail,x-systemd.requires=cloud-init.service", "0", "2"] Note that `nobootwait` is an upstart specific boot option that somewhat equates to the more standard `nofail`. 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. **Internal name:** ``cc_mounts`` **Module frequency:** per instance **Supported distros:** all **Config keys**:: 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: size: <"auto"/size in bytes> maxsize: ) whitespaceN) type_utils)subp)utilz&^([x]{0,1}[shv]d[a-z][0-9]*|sr[0-9]+)$z^.+:.*z[%s]+z /etc/fstabzcomment=cloudconfigcCsM|d krdSx6d D].}|j|r|jdd krdSqWd S) NamirootswapT ephemeralebs:F)rzrootr)r r ) startswithfind)nameZenumnamersz$suggested_swapsize..csdS)Nr+r)r1)GBrrr2scSs|S)Nr)r1rrrr2scsdS)Nr/r)r1)r3rrr2s@cSs|dS)Nr+r)r1rrrr2srsizez%s MBzCsuggest %s swap for %s memory with '%s' disk given max=%s [max=%s]'i@i) r read_meminforstatvfsf_frsizef_bfreeminintitems isinstanceLOGr&)memsizemaxsizefsysZsugg_maxinfor9r.Zformulasr6topfuncZMBZpinfokvr)r3rsuggested_swapsizesX            rI)fnamer6returncs8dfdd}tjj|}tj|tj|ddkrktjdkswdkr|||d nIy|||d Wn2tjk rt j d |||d YnXtjj |rtj |d ytjd |gWn%tjk r3tj |YnXdS)zSize is in MiB.z6Failed to create swapfile '%s' of size %sMB via %s: %scstjd|||dkr;ddd||g}n)|dkrdddd|dd |g}ytj|d d WnQtjk r}z.tj||||tj|WYdd}~XnXdS) Nz3Creating swapfile in '%s' on fstype '%s' using '%s' fallocatez-lz%sMddz if=/dev/zerozof=%szbs=1Mzcount=%sZcaptureT)r@r&rProcessExecutionErrorrDrdel_file)rJr6methodcmde)errmsgfstyperr create_swaps      z$create_swapfile..create_swapr Zxfsr/ZbtrfsrMrLz4fallocate swap creation failed, will attempt with ddiZmkswapN)r/rV)rrdirnamer ensure_dirZget_mount_infoZkernel_versionrrNr@rDrchmodrO)rJr6rUswap_dirr)rSrTrcreate_swapfiles(    r[cCstjj|}t|jdkrytjd}Wn#tk rctj ddSYnXtj |t d|d|d|}tt |d}|stj d dStj tj d d d td||g|S)z fname: full path string of filename to setup size: the size to create. set to "auto" for recommended maxsize: the maximum size autor*z)Not creating swap: failed to read meminfoNrCrBrAr+r7z'Not creating swap: suggested size was 0msgzSetting up swap filerFargsi)rrrWrlowerrr8IOErrorr@r&rXrIr=Zlog_timer[)rJr6rBrZrAZmibsizerrrsetup_swapfiles"       racCst|ts tjddS|jdd}|jdd}|jdd}|o_|sstjddStjj|r/tjjd stjd ||Sy[xDt j d j D]-}|j |d rtjd ||SqWtjd |Wn&t k r.tjd||SYnXyet|tr\|dkr\t j|}t|trzt j|}td|d|d|SWn5t k r}ztjd|WYdd}~XnXdS)zdhandle the swap config, calling setup_swap if necessary. return None or (filename, size) z%input for swap config was not a dict.Nfilenamez /swap.imgr6rrBzno 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. 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