X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/46eb68a8b8105d0746e28fe0d2a4309a01a040d9..87b47a1da6fb8cb3a203f1e906cd9066ec335cae:/code/main.py diff --git a/code/main.py b/code/main.py index 17bbd62..7ab52b5 100755 --- a/code/main.py +++ b/code/main.py @@ -52,24 +52,229 @@ class InvirtWeb(View): super(self.__class__,self).__init__() connect() self._cp_config['tools.require_login.on'] = True + self._cp_config['tools.mako.imports'] = ['from invirt.config import structs as config', + 'from invirt import database'] + @cherrypy.expose @cherrypy.tools.mako(filename="/list.mako") - def list(self): + def list(self, result=None): """Handler for list requests.""" checkpoint.checkpoint('Getting list dict') d = getListDict(cherrypy.request.login, cherrypy.request.state) + if result is not None: + d['result'] = result checkpoint.checkpoint('Got list dict') return d index=list @cherrypy.expose + @cherrypy.tools.mako(filename="/help.mako") + def help(self, subject=None, simple=False): + """Handler for help messages.""" + + help_mapping = { + 'Autoinstalls': """ +The autoinstaller builds a minimal Debian or Ubuntu system to run as a +ParaVM. You can access the resulting system by logging into the serial console server +with your Kerberos tickets; there is no root password so sshd will +refuse login.

+ +

Under the covers, the autoinstaller uses our own patched version of +xen-create-image, which is a tool based on debootstrap. If you log +into the serial console while the install is running, you can watch +it. +""", + 'ParaVM Console': """ +ParaVM machines do not support local console access over VNC. To +access the serial console of these machines, you can SSH with Kerberos +to %s, using the name of the machine as your +username.""" % config.console.hostname, + 'HVM/ParaVM': """ +HVM machines use the virtualization features of the processor, while +ParaVM machines rely on a modified kernel to communicate directly with +the hypervisor. HVMs support boot CDs of any operating system, and +the VNC console applet. The three-minute autoinstaller produces +ParaVMs. ParaVMs typically are more efficient, and always support the +console server.

+ +

More details are on the +wiki, including steps to prepare an HVM guest to boot as a ParaVM +(which you can skip by using the autoinstaller to begin with.)

+ +

We recommend using a ParaVM when possible and an HVM when necessary. +""", + 'CPU Weight': """ +Don't ask us! We're as mystified as you are.""", + 'Owner': """ +The owner field is used to determine quotas. It must be the name of a +locker that you are an AFS administrator of. In particular, you or an +AFS group you are a member of must have AFS rlidwka bits on the +locker. You can check who administers the LOCKER locker using the +commands 'attach LOCKER; fs la /mit/LOCKER' on Athena.) See also administrator.""", + 'Administrator': """ +The administrator field determines who can access the console and +power on and off the machine. This can be either a user or a moira +group.""", + 'Quotas': """ +Quotas are determined on a per-locker basis. Each locker may have a +maximum of 512 mebibytes of active ram, 50 gibibytes of disk, and 4 +active machines.""", + 'Console': """ +Framebuffer: At a Linux boot prompt in your VM, try +setting fb=false to disable the framebuffer. If you don't, +your machine will run just fine, but the applet's display of the +console will suffer artifacts. +""", + 'Windows': """ +Windows Vista: The Vista image is licensed for all MIT students and will automatically activate off the network; see the licensing confirmation e-mail for details. The installer requires 512 MiB RAM and at least 7.5 GiB disk space (15 GiB or more recommended).
+Windows XP: This is the volume license CD image. You will need your own volume license key to complete the install. We do not have these available for the general MIT community; ask your department if they have one, or visit http://msca.mit.edu/ if you are staff/faculty to request one. +""" + } + + if not subject: + subject = sorted(help_mapping.keys()) + if not isinstance(subject, list): + subject = [subject] + + return dict(simple=simple, + subjects=subject, + mapping=help_mapping) + help._cp_config['tools.require_login.on'] = False + + def parseCreate(self, fields): + kws = dict([(kw, fields.get(kw)) for kw in 'name description owner memory disksize vmtype cdrom autoinstall'.split()]) + validate = validation.Validate(cherrypy.request.login, cherrypy.request.state, strict=True, **kws) + return dict(contact=cherrypy.request.login, name=validate.name, description=validate.description, memory=validate.memory, + disksize=validate.disksize, owner=validate.owner, machine_type=getattr(validate, 'vmtype', Defaults.type), + cdrom=getattr(validate, 'cdrom', None), + autoinstall=getattr(validate, 'autoinstall', None)) + + @cherrypy.expose + @cherrypy.tools.mako(filename="/list.mako") + @cherrypy.tools.require_POST() + def create(self, **fields): + """Handler for create requests.""" + try: + parsed_fields = self.parseCreate(fields) + machine = controls.createVm(cherrypy.request.login, cherrypy.request.state, **parsed_fields) + except InvalidInput, err: + pass + else: + err = None + cherrypy.request.state.clear() #Changed global state + d = getListDict(cherrypy.request.login, cherrypy.request.state) + d['err'] = err + if err: + for field in fields.keys(): + setattr(d['defaults'], field, fields.get(field)) + else: + d['new_machine'] = parsed_fields['name'] + return d + + @cherrypy.expose @cherrypy.tools.mako(filename="/helloworld.mako") - def helloworld(self): - return {} - return "Hello world!\nYour request: "+repr(dir(cherrypy.request)) + def helloworld(self, **kwargs): + return {'request': cherrypy.request, 'kwargs': kwargs} helloworld._cp_config['tools.require_login.on'] = False + class MachineView(View): + # This is hairy. Fix when CherryPy 3.2 is out. (rename to + # _cp_dispatch, and parse the argument as a list instead of + # string + + def __getattr__(self, name): + try: + machine_id = int(name) + cherrypy.request.params['machine_id'] = machine_id + return self + except ValueError: + return None + + @cherrypy.expose + @cherrypy.tools.mako(filename="/info.mako") + def info(self, machine_id): + """Handler for info on a single VM.""" + machine = validation.Validate(cherrypy.request.login, cherrypy.request.state, machine_id=machine_id).machine + d = infoDict(cherrypy.request.login, cherrypy.request.state, machine) + checkpoint.checkpoint('Got infodict') + return d + index = info + + @cherrypy.expose + @cherrypy.tools.mako(filename="/vnc.mako") + def vnc(self, machine_id): + """VNC applet page. + + Note that due to same-domain restrictions, the applet connects to + the webserver, which needs to forward those requests to the xen + server. The Xen server runs another proxy that (1) authenticates + and (2) finds the correct port for the VM. + + You might want iptables like: + + -t nat -A PREROUTING -s ! 18.181.0.60 -i eth1 -p tcp -m tcp \ + --dport 10003 -j DNAT --to-destination 18.181.0.60:10003 + -t nat -A POSTROUTING -d 18.181.0.60 -o eth1 -p tcp -m tcp \ + --dport 10003 -j SNAT --to-source 18.187.7.142 + -A FORWARD -d 18.181.0.60 -i eth1 -o eth1 -p tcp -m tcp \ + --dport 10003 -j ACCEPT + + Remember to enable iptables! + echo 1 > /proc/sys/net/ipv4/ip_forward + """ + machine = validation.Validate(cherrypy.request.login, cherrypy.request.state, machine_id=machine_id).machine + + token = controls.vnctoken(machine) + host = controls.listHost(machine) + if host: + port = 10003 + [h.hostname for h in config.hosts].index(host) + else: + port = 5900 # dummy + + status = controls.statusInfo(machine) + has_vnc = hasVnc(status) + + d = dict(on=status, + has_vnc=has_vnc, + machine=machine, + hostname=cherrypy.request.local.name, + port=port, + authtoken=token) + return d + @cherrypy.expose + @cherrypy.tools.mako(filename="/command.mako") + @cherrypy.tools.require_POST() + def command(self, command_name, machine_id, **kwargs): + """Handler for running commands like boot and delete on a VM.""" + back = kwargs.get('back', None) + try: + d = controls.commandResult(cherrypy.request.login, cherrypy.request.state, command_name, machine_id, kwargs) + if d['command'] == 'Delete VM': + back = 'list' + except InvalidInput, err: + if not back: + raise + print >> sys.stderr, err + result = err + else: + result = 'Success!' + if not back: + return d + if back == 'list': + cherrypy.request.state.clear() #Changed global state + raise cherrypy.InternalRedirect('/list?result=%s' % urllib.quote(result)) + elif back == 'info': + raise cherrypy.HTTPRedirect(cherrypy.request.base + '/machine/%d/' % machine_id, status=303) + else: + raise InvalidInput('back', back, 'Not a known back page.') + + machine = MachineView() + def pathSplit(path): if path.startswith('/'): path = path[1:] @@ -93,16 +298,6 @@ class Checkpoint: checkpoint = Checkpoint() -def jquote(string): - return "'" + string.replace('\\', '\\\\').replace("'", "\\'").replace('\n', '\\n') + "'" - -def helppopup(subj): - """Return HTML code for a (?) link to a specified help topic""" - return ('(?)') - def makeErrorPre(old, addition): if addition is None: return @@ -113,7 +308,6 @@ def makeErrorPre(old, addition): Template.database = database Template.config = config -Template.helppopup = staticmethod(helppopup) Template.err = None class JsonDict: @@ -172,33 +366,6 @@ def hasVnc(status): return 'location' in d return False -def parseCreate(username, state, fields): - kws = dict([(kw, fields.getfirst(kw)) for kw in 'name description owner memory disksize vmtype cdrom autoinstall'.split()]) - validate = validation.Validate(username, state, strict=True, **kws) - return dict(contact=username, name=validate.name, description=validate.description, memory=validate.memory, - disksize=validate.disksize, owner=validate.owner, machine_type=getattr(validate, 'vmtype', Defaults.type), - cdrom=getattr(validate, 'cdrom', None), - autoinstall=getattr(validate, 'autoinstall', None)) - -def create(username, state, path, fields): - """Handler for create requests.""" - try: - parsed_fields = parseCreate(username, state, fields) - machine = controls.createVm(username, state, **parsed_fields) - except InvalidInput, err: - pass - else: - err = None - state.clear() #Changed global state - d = getListDict(username, state) - d['err'] = err - if err: - for field in fields.keys(): - setattr(d['defaults'], field, fields.getfirst(field)) - else: - d['new_machine'] = parsed_fields['name'] - return templates.list(searchList=[d]) - def getListDict(username, state): """Gets the list of local variables used by list.tmpl.""" @@ -221,7 +388,7 @@ def getListDict(username, state): elif m.type.hvm: has_vnc[m] = "WTF?" else: - has_vnc[m] = "ParaVM"+helppopup("ParaVM Console") + has_vnc[m] = "ParaVM" max_memory = validation.maxMemory(username, state) max_disk = validation.maxDisk(username) checkpoint.checkpoint('Got max mem/disk') @@ -242,47 +409,6 @@ def getListDict(username, state): can_clone=can_clone) return d -def vnc(username, state, path, fields): - """VNC applet page. - - Note that due to same-domain restrictions, the applet connects to - the webserver, which needs to forward those requests to the xen - server. The Xen server runs another proxy that (1) authenticates - and (2) finds the correct port for the VM. - - You might want iptables like: - - -t nat -A PREROUTING -s ! 18.181.0.60 -i eth1 -p tcp -m tcp \ - --dport 10003 -j DNAT --to-destination 18.181.0.60:10003 - -t nat -A POSTROUTING -d 18.181.0.60 -o eth1 -p tcp -m tcp \ - --dport 10003 -j SNAT --to-source 18.187.7.142 - -A FORWARD -d 18.181.0.60 -i eth1 -o eth1 -p tcp -m tcp \ - --dport 10003 -j ACCEPT - - Remember to enable iptables! - echo 1 > /proc/sys/net/ipv4/ip_forward - """ - machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine - - token = controls.vnctoken(machine) - host = controls.listHost(machine) - if host: - port = 10003 + [h.hostname for h in config.hosts].index(host) - else: - port = 5900 # dummy - - status = controls.statusInfo(machine) - has_vnc = hasVnc(status) - - d = dict(user=username, - on=status, - has_vnc=has_vnc, - machine=machine, - hostname=state.environ.get('SERVER_NAME', 'localhost'), - port=port, - authtoken=token) - return templates.vnc(searchList=[d]) - def getHostname(nic): """Find the hostname associated with a NIC. @@ -336,35 +462,6 @@ def getDiskInfo(data_dict, machine): data_dict['%s_size' % name] = "%0.1f GiB" % (disk.size / 1024.) return disk_fields -def command(username, state, path, fields): - """Handler for running commands like boot and delete on a VM.""" - back = fields.getfirst('back') - try: - d = controls.commandResult(username, state, fields) - if d['command'] == 'Delete VM': - back = 'list' - except InvalidInput, err: - if not back: - raise - print >> sys.stderr, err - result = err - else: - result = 'Success!' - if not back: - return templates.command(searchList=[d]) - if back == 'list': - state.clear() #Changed global state - d = getListDict(username, state) - d['result'] = result - return templates.list(searchList=[d]) - elif back == 'info': - machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine - return ({'Status': '303 See Other', - 'Location': 'info?machine_id=%d' % machine.machine_id}, - "You shouldn't see this message.") - else: - raise InvalidInput('back', back, 'Not a known back page.') - def modifyDict(username, state, fields): """Modify a machine as specified by CGI arguments. @@ -443,86 +540,6 @@ def modify(username, state, path, fields): info_dict['result'] = result return templates.info(searchList=[info_dict]) - -def helpHandler(username, state, path, fields): - """Handler for help messages.""" - simple = fields.getfirst('simple') - subjects = fields.getlist('subject') - - help_mapping = { - 'Autoinstalls': """ -The autoinstaller builds a minimal Debian or Ubuntu system to run as a -ParaVM. You can access the resulting system by logging into the serial console server -with your Kerberos tickets; there is no root password so sshd will -refuse login.

- -

Under the covers, the autoinstaller uses our own patched version of -xen-create-image, which is a tool based on debootstrap. If you log -into the serial console while the install is running, you can watch -it. -""", - 'ParaVM Console': """ -ParaVM machines do not support local console access over VNC. To -access the serial console of these machines, you can SSH with Kerberos -to %s, using the name of the machine as your -username.""" % config.console.hostname, - 'HVM/ParaVM': """ -HVM machines use the virtualization features of the processor, while -ParaVM machines rely on a modified kernel to communicate directly with -the hypervisor. HVMs support boot CDs of any operating system, and -the VNC console applet. The three-minute autoinstaller produces -ParaVMs. ParaVMs typically are more efficient, and always support the -console server.

- -

More details are on the -wiki, including steps to prepare an HVM guest to boot as a ParaVM -(which you can skip by using the autoinstaller to begin with.)

- -

We recommend using a ParaVM when possible and an HVM when necessary. -""", - 'CPU Weight': """ -Don't ask us! We're as mystified as you are.""", - 'Owner': """ -The owner field is used to determine quotas. It must be the name of a -locker that you are an AFS administrator of. In particular, you or an -AFS group you are a member of must have AFS rlidwka bits on the -locker. You can check who administers the LOCKER locker using the -commands 'attach LOCKER; fs la /mit/LOCKER' on Athena.) See also administrator.""", - 'Administrator': """ -The administrator field determines who can access the console and -power on and off the machine. This can be either a user or a moira -group.""", - 'Quotas': """ -Quotas are determined on a per-locker basis. Each locker may have a -maximum of 512 mebibytes of active ram, 50 gibibytes of disk, and 4 -active machines.""", - 'Console': """ -Framebuffer: At a Linux boot prompt in your VM, try -setting fb=false to disable the framebuffer. If you don't, -your machine will run just fine, but the applet's display of the -console will suffer artifacts. -""", - 'Windows': """ -Windows Vista: The Vista image is licensed for all MIT students and will automatically activate off the network; see the licensing confirmation e-mail for details. The installer requires 512 MiB RAM and at least 7.5 GiB disk space (15 GiB or more recommended).
-Windows XP: This is the volume license CD image. You will need your own volume license key to complete the install. We do not have these available for the general MIT community; ask your department if they have one. -""" - } - - if not subjects: - subjects = sorted(help_mapping.keys()) - - d = dict(user=username, - simple=simple, - subjects=subjects, - mapping=help_mapping) - - return templates.help(searchList=[d]) - - def badOperation(u, s, p, e): """Function called when accessing an unknown URI.""" return ({'Status': '404 Not Found'}, 'Invalid operation.') @@ -558,7 +575,6 @@ def infoDict(username, state, machine): ('memory', 'RAM'), 'DISK_INFO', ('state', 'state (xen format)'), - ('cpu_weight', 'CPU weight'+helppopup('CPU Weight')), ] fields = [] machine_info = {} @@ -612,17 +628,9 @@ def infoDict(username, state, machine): ram=machine.memory, max_mem=max_mem, max_disk=max_disk, - owner_help=helppopup("Owner"), fields = fields) return d -def info(username, state, path, fields): - """Handler for info on a single VM.""" - machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine - d = infoDict(username, state, machine) - checkpoint.checkpoint('Got infodict') - return templates.info(searchList=[d]) - def unauthFront(_, _2, _3, fields): """Information for unauth'd users.""" return templates.unauth(searchList=[{'simple' : True, @@ -644,13 +652,8 @@ def throwError(_, __, ___, ____): """Throw an error, to test the error-tracing mechanisms.""" raise RuntimeError("test of the emergency broadcast system") -mapping = dict(#list=listVms, - vnc=vnc, - command=command, +mapping = dict( modify=modify, - info=info, - create=create, - help=helpHandler, unauth=unauthFront, admin=admin, overlord=admin,