From 4ae49c6361ee0ee7d1e0670f41158ae282b29716 Mon Sep 17 00:00:00 2001
From: Apollon Oikonomopoulos <apollon@noc.grnet.gr>
Date: Wed, 20 Apr 2011 12:23:10 +0300
Subject: [PATCH] Add GRNET's configuration migration scripts
tools/cfgupgrade_grnet: Migrate GRNET's old configuration parameters
tools/upgrade-kvm-runtime: Handle kvm runtime upgrades, removing the obsolete
run_as parameter
Use responsibly.
Signed-off-by: Apollon Oikonomopoulos <apollon@noc.grnet.gr>
---
Makefile.am | 2 ++
tools/cfgupgrade_grnet | 56 +++++++++++++++++++++++++++++++++++++++
tools/upgrade-kvm-runtime | 47 ++++++++++++++++++++++++++++++++
3 files changed, 105 insertions(+)
create mode 100755 tools/cfgupgrade_grnet
create mode 100755 tools/upgrade-kvm-runtime
diff --git a/Makefile.am b/Makefile.am
index cc1558b9c..c8d61ec31 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -361,6 +361,8 @@ dist_tools_SCRIPTS = \
tools/cfgshell \
tools/cfgupgrade \
tools/cfgupgrade12 \
+ tools/cfgupgrade_grnet \
+ tools/upgrade-kvm-runtime \
tools/cluster-merge \
tools/lvmstrap \
tools/move-instance \
diff --git a/tools/cfgupgrade_grnet b/tools/cfgupgrade_grnet
new file mode 100755
index 000000000..02bce5587
--- /dev/null
+++ b/tools/cfgupgrade_grnet
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+import os
+import sys
+
+from ganeti import config
+
+
+cfg = config.ConfigWriter(cfg_file=sys.argv[1], offline=True)
+
+if "kvm" in cfg._config_data.cluster.hvparams:
+ kvm = cfg._config_data.cluster.hvparams["kvm"]
+
+ if "run_as" in kvm:
+ if kvm["run_as"]:
+ print "Found run_as HV parameter, replacing with 'user' security model"
+ kvm["security_model"] = "user"
+ kvm["security_domain"] = kvm["run_as"]
+ else:
+ print "Found empty run_as KVM HV parameter, removing"
+ del kvm["run_as"]
+
+instances = cfg._config_data.instances
+
+for name in instances:
+ instance = instances[name]
+ if "run_as" in instance.hvparams:
+ if instance.hvparams["run_as"]:
+ print "Found old 'run_as' parameter, converting to 'user' security model"
+ instance.hvparams["security_model"] = "user"
+ instance.hvparams["security_domain"] = instance.hvparams["run_as"]
+ else:
+ print "Found empty run_as KVM HV parameter, removing"
+ del instance.hvparams["run_as"]
+
+ if instance.disk_template != "blockdev":
+ continue
+
+ for disk in instance.disks:
+ if len(disk.logical_id) == 3:
+ print "Found old blockdev configuration on instance %s, fixing" % name
+ lid = disk.logical_id[2]
+ if not lid.startswith("/dev/disk/"):
+ lid = os.path.join("/dev/disk", lid)
+
+ disk.logical_id = ["manual", lid]
+ try:
+ disk.physical_id = ["manual", lid]
+ except AttributeError:
+ pass
+
+print "Verifying configuration"
+cfg.VerifyConfig()
+
+print "Writing config"
+cfg._WriteConfig()
diff --git a/tools/upgrade-kvm-runtime b/tools/upgrade-kvm-runtime
new file mode 100755
index 000000000..616386897
--- /dev/null
+++ b/tools/upgrade-kvm-runtime
@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+
+import os
+import sys
+
+from glob import glob
+
+from ganeti import constants
+from ganeti import serializer
+from ganeti import utils
+from ganeti.hypervisor.hv_kvm import KVMHypervisor
+
+if len(sys.argv) == 1:
+ root = KVMHypervisor._CONF_DIR
+else:
+ root = sys.argv[1]
+
+for path in glob(os.path.join(root, "*.runtime")):
+ try:
+ data = utils.ReadFile(path)
+ except EnvironmentError, e:
+ print "Failed to read file %s: %s" % (path, str(e))
+ continue
+
+ try:
+ kvm_cmd, nics, hvparams = serializer.Load(data)
+ except Exception, e:
+ print "Failed to parse file %s: %s" % (path, str(e))
+ continue
+
+ # Replace the run_as parameter or remove it completely
+ if "run_as" in hvparams:
+ if hvparams["run_as"]:
+ print "Replacing 'run_as' in %s with 'security_model' = 'user'" % path
+ hvparams["security_model"] = "user"
+ hvparams["security_domain"] = hvparams["run_as"]
+ else:
+ print "Removing 'run_as' from %s" % path
+
+ del hvparams["run_as"]
+
+ try:
+ utils.WriteFile(path,
+ data=serializer.Dump((kvm_cmd, nics, hvparams)),
+ backup=True)
+ except EnvironmentError, e:
+ print "Failed to write %s" % path
--
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