X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=plugins%2Fomf_resctl.py;h=cbea3ac45d3ef3e0a7630931bbcfdec615117849;hb=931588ce80de75383b980a3eab806a60396364ba;hp=1401bc809fa341fce9fa398c20cde64bdcf16c64;hpb=342c63a2acd2acfb5876b872cea47f152ca5f12e;p=nodemanager.git diff --git a/plugins/omf_resctl.py b/plugins/omf_resctl.py index 1401bc8..cbea3ac 100644 --- a/plugins/omf_resctl.py +++ b/plugins/omf_resctl.py @@ -1,57 +1,83 @@ # -# $Id$ -# $URL$ -# # NodeManager plugin - first step of handling omf_controlled slices +# """ -Overwrites the 'resctl' tag of slivers controlled by OMF so sm.py does the right thing +Overwrites the 'resctl' tag of slivers controlled by OMF so slivermanager.py does the right thing """ +import os, os.path +import glob import subprocess import tools import logger -priority = 11 - -### xxx this should not be version-dependent -service_name='omf-resctl-5.3' +priority = 50 -def start(options, conf): +def start(): logger.log("omf_resctl: plugin starting up...") def GetSlivers(data, conf = None, plc = None): - if 'accounts' not in data: + if 'accounts' not in data: logger.log_missing_data("omf_resctl.GetSlivers",'accounts') return try: xmpp_server=data['xmpp']['server'] + if not xmpp_server: + # we have the key but no value, just as bad + raise Exception except: # disabled feature - bailing out # xxx might need to clean up more deeply.. + logger.log("PLC config unsufficient (not enabled, or no server set), see the PLC_OMF category -- plugin exiting") return + # as hrn is set only at AddNode-time, upgraded myplcs might still miss this + # clue: just overwrite the hostname of all nodes + # for node in GetNodes(): UpdateNode(node['node_id'],{'hostname':node['hostname']}) + try: + node_hrn = data['hrn'] + if not node_hrn: raise Exception + except: + logger.log("Failed to read hrn from GetSlivers, using 'default' - *please upgrade PLCAPI*") + node_hrn='default # Failed to read hrn from GetSlivers, please upgrade PLCAPI' + for sliver in data['slivers']: name=sliver['name'] + sliver_pub_key_dir=os.path.join("/home", name, ".ssh/") + sliver_private_key=os.path.join(sliver_pub_key_dir, "id_rsa") for chunk in sliver['attributes']: if chunk['tagname']=='omf_control': - # filenames - yaml="/vservers/%s/etc/omf-resctl/omf-resctl.yaml"%name - template="%s.in"%yaml - # read template and replace - template=file(template).read() - yaml_contents=template\ - .replace('@XMPP_SERVER@',xmpp_server)\ - .replace('@NODE_HRN@','default')\ - .replace('@SLICE_NAME@',name) - changes=tools.replace_file_with_string(yaml,yaml_contents) - if changes: - sp=subprocess.Popen(['vserver',name,'exec','service',service_name,'restart'], - stdout=subprocess.PIPE,stderr=subprocess.STDOUT) - (output,retcod)=sp.communicate() - logger.log("omf_resctl: %s: restarted resource controller (retcod=%r)"%(name,retcod)) - logger.log("omf_resctl: got output\n%s"%output) - else: - logger.log("omf_resctl: %s: omf_control'ed sliver has no change" % name) + # scan all versions of omf-resctl + etc_path="/vservers/%s/etc/"%name + pattern = etc_path + "omf-resctl-*/omf-resctl.yaml.in" + templates = glob.glob (pattern) + if not templates: + logger.log("WARNING: omf_resctl plugin, no template found for slice %s using pattern %s"\ + %(name,pattern)) + continue + for template in templates: + # remove the .in extension + yaml=template[:-3] + # figure service name as subdir under etc/ + service_name=os.path.split(template.replace(etc_path,''))[0] + # read template and replace + template_contents=file(template).read() + yaml_contents=template_contents\ + .replace('@XMPP_SERVER@',xmpp_server)\ + .replace('@NODE_HRN@',node_hrn)\ + .replace('@SLICE_NAME@',name)\ + .replace('@SLIVER_PRIVATE_KEY@',sliver_private_key)\ + .replace('@SLIVER_PUB_KEY_DIR@',sliver_pub_key_dir) + changes=tools.replace_file_with_string(yaml,yaml_contents) + logger.log("yaml_contents length=%d, changes=%r"%(len(yaml_contents),changes)) + if changes: + sp=subprocess.Popen(['vserver',name,'exec','service',service_name,'restart'], + stdout=subprocess.PIPE,stderr=subprocess.STDOUT) + (output,retcod)=sp.communicate() + logger.log("omf_resctl: %s: restarted resource controller (retcod=%r)"%(name,retcod)) + logger.log("omf_resctl: got output\n%s"%output) + else: + logger.log("omf_resctl: %s: omf_control'ed sliver has no change" % name)