-# $Id$
-# $URL$
import random
import base64
import os
from PLC.InterfaceTags import InterfaceTag, InterfaceTags
from PLC.NodeTags import NodeTag, NodeTags
-from PLC.Accessors.Accessors_standard import * # import node accessors
+from PLC.Accessors.Accessors_standard import * # import node accessors
# could not define this in the class..
# create a dict with the allowed actions for each type of node
+# reservable nodes being more recent, we do not support the floppy stuff anymore
allowed_actions = {
- 'regular' : [ 'node-preview',
- 'node-floppy',
- 'node-iso',
- 'node-usb',
- 'generic-iso',
- 'generic-usb',
- ],
- }
+ 'regular' :
+ [ 'node-preview',
+ 'node-floppy',
+ 'node-iso',
+ 'node-usb',
+ 'generic-iso',
+ 'generic-usb',
+ ],
+ 'reservable':
+ [ 'node-preview',
+ 'node-iso',
+ 'node-usb',
+ ],
+ }
# compute a new key
def compute_key():
class GetBootMedium(Method):
"""
- This method is a redesign based on former, supposedly dedicated,
+ This method is a redesign based on former, supposedly dedicated,
AdmGenerateNodeConfFile
- As compared with its ancestor, this method provides a much more
+ As compared with its ancestor, this method provides a much more
detailed interface, that allows to
- (*) either just preview the node config file -- in which case
+ (*) either just preview the node config file -- in which case
the node key is NOT recomputed, and NOT provided in the output
- (*) or regenerate the node config file for storage on a floppy
- that is, exactly what the ancestor method used todo,
+ (*) or regenerate the node config file for storage on a floppy
+ that is, exactly what the ancestor method used todo,
including renewing the node's key
(*) or regenerate the config file and bundle it inside an ISO or USB image
- (*) or just provide the generic ISO or USB boot images
+ (*) or just provide the generic ISO or USB boot images
in which case of course the node_id_or_hostname parameter is not used
action is expected among the following string constants according the
Apart for the preview mode, this method generates a new node key for the
specified node, effectively invalidating any old boot medium.
+ Note that 'reservable' nodes do not support 'node-floppy',
+ 'generic-iso' nor 'generic-usb'.
In addition, two return mechanisms are supported.
- (*) The default behaviour is that the file's content is returned as a
+ (*) The default behaviour is that the file's content is returned as a
base64-encoded string. This is how the ancestor method used to work.
To use this method, pass an empty string as the file parameter.
- (*) Or, for efficiency -- this makes sense only when the API is used
- by the web pages that run on the same host -- the caller may provide
- a filename, in which case the resulting file is stored in that location instead.
- The filename argument can use the following markers, that are expanded
+ (*) Or, for efficiency -- this makes sense only when the API is used
+ by the web pages that run on the same host -- the caller may provide
+ a filename, in which case the resulting file is stored in that location instead.
+ The filename argument can use the following markers, that are expanded
within the method
- %d : default root dir (some builtin dedicated area under /var/tmp/)
Using this is recommended, and enforced for non-admin users
- - %n : the node's name when this makes sense, or a mktemp-like name when
+ - %n : the node's name when this makes sense, or a mktemp-like name when
generic media is requested
- %s : a file suffix appropriate in the context (.txt, .iso or the like)
- %v : the bootcd version string (e.g. 4.0)
- %p : the PLC name
- %f : the nodefamily
- %a : arch
- With the file-based return mechanism, the method returns the full pathname
- of the result file;
+ With the file-based return mechanism, the method returns the full pathname
+ of the result file;
** WARNING **
It is the caller's responsability to remove this file after use.
- Options: an optional array of keywords.
+ Options: an optional array of keywords.
options are not supported for generic images
Currently supported are
- 'partition' - for USB actions only
tty - baudrate - parity - bits
e.g. ttyS0:115200:n:8
- 'variant:<variantname>'
- passed to build.sh as -V <variant>
+ passed to build.sh as -V <variant>
variants are used to run a different kernel on the bootCD
see kvariant.sh for how to create a variant
- 'no-hangcheck' - disable hangcheck
Tags: the following tags are taken into account when attached to the node:
'serial', 'cramfs', 'kvariant', 'kargs', 'no-hangcheck'
-
+
Security:
- Non-admins can only generate files for nodes at their sites.
- Non-admins, when they provide a filename, *must* specify it in the %d area
- Housekeeping:
+ Housekeeping:
Whenever needed, the method stores intermediate files in a
private area, typically not located under the web server's
accessible area, and are cleaned up by the method.
if len(parts) < 2:
raise PLCInvalidArgument, "Node hostname %s is invalid"%node['hostname']
return parts
-
+
# Generate the node (plnode.txt) configuration content.
#
# This function will create the configuration file a node
# renew the key and save it on the database
if renew_key:
node['key'] = compute_key()
+ node.update_last_download(commit=False)
node.sync()
# Generate node configuration file suitable for BootCD
for setting in settings:
if setting['category'] is not None:
categories.add(setting['category'])
-
+
for category in categories:
category_settings = InterfaceTags(self.api,{'interface_id':interface['interface_id'],
'category':category})
return file
# see also GetNodeFlavour that does similar things
- def get_nodefamily (self, node):
+ def get_nodefamily (self, node, auth):
pldistro = self.api.config.PLC_FLAVOUR_NODE_PLDISTRO
fcdistro = self.api.config.PLC_FLAVOUR_NODE_FCDISTRO
arch = self.api.config.PLC_FLAVOUR_NODE_ARCH
if not node:
return (pldistro,fcdistro,arch)
-
+
node_id=node['node_id']
-
+
# no support for deployment-based BootCD's, use kvariants instead
- node_pldistro = GetNodePldistro (self.api).call(auth, node_id)
+ node_pldistro = GetNodePldistro (self.api,self.caller).call(auth, node_id)
if node_pldistro: pldistro = node_pldistro
- node_fcdistro = GetNodeFcdistro (self.api).call(auth, node_id)
+ node_fcdistro = GetNodeFcdistro (self.api,self.caller).call(auth, node_id)
if node_fcdistro: fcdistro = node_fcdistro
- node_arch = GetNodeArch (self.api).call(auth,node_id)
+ node_arch = GetNodeArch (self.api,self.caller).call(auth,node_id)
if node_arch: arch = node_arch
-
+
return (pldistro,fcdistro,arch)
def bootcd_version (self):
return file(self.BOOTCDDIR + "/build/version.txt").readline().strip()
except:
raise Exception,"Unknown boot cd version - probably wrong bootcd dir : %s"%self.BOOTCDDIR
-
+
def cleantrash (self):
for file in self.trash:
if self.DEBUG:
os.unlink(file)
### handle filename
- # build the filename string
+ # build the filename string
# check for permissions and concurrency
# returns the filename
def handle_filename (self, filename, nodename, suffix, arch):
raise PLCInvalidArgument, "File %s not under %s"%(filename,self.WORKDIR)
### output should not exist (concurrent runs ..)
+ # numerous reports of issues with this policy
+ # looks like people sometime suspend/cancel their download
+ # and this leads to the old file sitting in there forever
+ # so, if the file is older than 5 minutes, we just trash
+ grace=5
+ if os.path.exists(filename) and os.path.getmtime(filename)-time.time() >= (grace*60):
+ os.unlink(filename)
if os.path.exists(filename):
- raise PLCInvalidArgument, "Resulting file %s already exists"%filename
+ raise PLCInvalidArgument, "Resulting file %s already exists - please try again in %d minutes"%\
+ (filename,grace)
- ### we can now safely create the file,
+ ### we can now safely create the file,
### either we are admin or under a controlled location
filedir=os.path.dirname(filename)
# dirname does not return "." for a local filename like its shell counterpart
# regular node, make build's arguments
# and build the full command line to be called
- if node_type == 'regular':
+ if node_type in [ 'regular', 'reservable' ]:
build_sh_options=""
- if "cramfs" in build_sh_spec:
+ if "cramfs" in build_sh_spec:
type += "_cramfs"
- if "serial" in build_sh_spec:
+ if "serial" in build_sh_spec:
build_sh_options += " -s %s"%build_sh_spec['serial']
if "variant" in build_sh_spec:
build_sh_options += " -V %s"%build_sh_spec['variant']
-
+
for karg in build_sh_spec['kargs']:
build_sh_options += ' -k "%s"'%karg
if self.DEBUG:
print "The build command line is %s" % command
- return command
+ return command
def call(self, auth, node_id_or_hostname, action, filename, options = []):
if options:
raise PLCInvalidArgument, "Options are not supported for node configs"
else:
- # create a dict for build.sh
+ # create a dict for build.sh
build_sh_spec={'kargs':[]}
# use node tags as defaults
# check for node tag equivalents
- tags = NodeTags(self.api,
- {'node_id': node['node_id'],
+ tags = NodeTags(self.api,
+ {'node_id': node['node_id'],
'tagname': ['serial', 'cramfs', 'kvariant', 'kargs', 'no-hangcheck']},
['tagname', 'value'])
if tags:
if tag['tagname'] == 'kvariant':
build_sh_spec['variant'] = tag['value']
if tag['tagname'] == 'kargs':
- build_sh_spec['kargs'].append(tag['value'].split())
+ build_sh_spec['kargs'] += tag['value'].split()
if tag['tagname'] == 'no-hangcheck':
build_sh_spec['kargs'].append('hcheck_reboot0')
# then options can override tags
nodename = "".join(map(hexa2,tempbytes))
# get nodefamily
- (pldistro,fcdistro,arch) = self.get_nodefamily(node)
+ (pldistro,fcdistro,arch) = self.get_nodefamily(node,auth)
self.nodefamily="%s-%s-%s"%(pldistro,fcdistro,arch)
# apply on globals
for attr in [ "BOOTCDDIR", "BOOTCDBUILD", "GENERICDIR" ]:
setattr(self,attr,getattr(self,attr).replace("@NODEFAMILY@",self.nodefamily))
-
+
filename = self.handle_filename(filename, nodename, suffix, arch)
-
+
# log call
if node:
self.message='GetBootMedium on node %s - action=%s'%(nodename,action)
### check we've got required material
version = self.bootcd_version()
-
+
if not os.path.isfile(self.BOOTCDBUILD):
raise PLCAPIError, "Cannot locate bootcd/build.sh script %s"%self.BOOTCDBUILD
os.chmod(self.WORKDIR,0777)
except:
raise PLCPermissionDenied, "Could not create dir %s"%self.WORKDIR
-
+
try:
# generate floppy config
floppy_text = self.floppy_contents(node,True)
if not os.path.isfile (node_image):
raise PLCAPIError,"Unexpected location of build.sh output - %s"%node_image
-
+
# handle result
if filename:
ret=os.system('mv "%s" "%s"'%(node_image,filename))
except:
self.cleantrash()
raise
-
+
# we're done here, or we missed something
raise PLCAPIError,'Unhandled action %s'%action
-
git://git.onelab.eu / plcapi.git / blobdiff