def set_hostname(hostname, log):
util.subp(['hostname', hostname])
platform = util.determine_platform()
log.info("Setting hostname on platform: %s", platform)
old_name = None
if platform == util.RH_PLATFORM:
old_name = set_hostname_rh(hostname, log)
else:
old_name = set_hostname_deb(hostname, log)
return old_name
def handle(_name, cfg, cloud, log, _args):
if "bootcmd" not in cfg:
return
try:
content = util.shellify(cfg["bootcmd"])
except:
log.warn("Failed to shellify bootcmd")
raise
try:
env = os.environ.copy()
env["INSTANCE_ID"] = cloud.get_instance_id()
util.subp(["/bin/sh"], content, env=env)
except:
log.warn("Failed to run commands from bootcmd")
raise
def route_info():
(route_out, err) = util.subp(["route", "-n"])
routes = []
for line in route_out.splitlines()[1:]:
if not line:
continue
toks = line.split()
if toks[0] == "Kernel" or toks[0] == "Destination":
continue
routes.append(toks)
return routes
def netdev_info(empty=""):
fields = ("hwaddr", "addr", "bcast", "mask")
(ifcfg_out, err) = util.subp(["ifconfig", "-a"])
devs = {}
for line in ifcfg_out.splitlines():
if len(line) == 0:
continue
if line[0] not in ("\t", " "):
curdev = line.split()[0]
devs[curdev] = {"up": False}
for field in fields:
devs[curdev][field] = ""
toks = line.lower().strip().split()
if toks[0] == "up":
devs[curdev]['up'] = True
fieldpost = ""
if toks[0] == "inet6":
fieldpost = "6"
for i in range(len(toks)):
if toks[i] == "hwaddr":
try:
devs[curdev]["hwaddr"] = toks[i + 1]
except IndexError:
pass
for field in ("addr", "bcast", "mask"):
target = "%s%s" % (field, fieldpost)
if devs[curdev].get(target, ""):
continue
if toks[i] == "%s:" % field:
try:
devs[curdev][target] = toks[i + 1]
except IndexError:
pass
elif toks[i].startswith("%s:" % field):
devs[curdev][target] = toks[i][len(field) + 1:]
if empty != "":
for (_devname, dev) in devs.iteritems():
for field in dev:
if dev[field] == "":
dev[field] = empty
return devs
def handle(_name, cfg, _cloud, _log, _args):
if util.get_cfg_option_bool(cfg, "disable_ec2_metadata", False):
util.subp(["route", "add", "-host", "169.254.169.254", "reject"])
def handle(_name, cfg, cloud, log, _args):
# fs_spec, fs_file, fs_vfstype, fs_mntops, fs-freq, fs_passno
defvals = [None, None, "auto", "defaults,nobootwait", "0", "2"]
defvals = cfg.get("mount_default_fields", defvals)
# these are our default set of mounts
defmnts = [["ephemeral0", "/mnt", "auto", defvals[3], "0", "2"],
["swap", "none", "swap", "sw", "0", "0"]]
cfgmnt = []
if "mounts" in cfg:
cfgmnt = cfg["mounts"]
# shortname matches 'sda', 'sda1', 'xvda', 'hda', 'sdb', xvdb, vda, vdd1
shortname_filter = r"^[x]{0,1}[shv]d[a-z][0-9]*$"
shortname = re.compile(shortname_filter)
for i in range(len(cfgmnt)):
# skip something that wasn't a list
if not isinstance(cfgmnt[i], list):
continue
# workaround, allow user to specify 'ephemeral'
# rather than more ec2 correct 'ephemeral0'
if cfgmnt[i][0] == "ephemeral":
cfgmnt[i][0] = "ephemeral0"
if is_mdname(cfgmnt[i][0]):
newname = cloud.device_name_to_device(cfgmnt[i][0])
if not newname:
log.debug("Iignoring nonexistant named mount %s", cfgmnt[i][0])
cfgmnt[i][1] = None
else:
if newname.startswith("/"):
cfgmnt[i][0] = newname
else:
cfgmnt[i][0] = "/dev/%s" % newname
else:
if shortname.match(cfgmnt[i][0]):
cfgmnt[i][0] = "/dev/%s" % cfgmnt[i][0]
# in case the user did not quote a field (likely fs-freq, fs_passno)
# but do not convert None to 'None' (LP: #898365)
for j in range(len(cfgmnt[i])):
if isinstance(cfgmnt[i][j], int):
cfgmnt[i][j] = str(cfgmnt[i][j])
for i in range(len(cfgmnt)):
# fill in values with defaults from defvals above
for j in range(len(defvals)):
if len(cfgmnt[i]) <= j:
cfgmnt[i].append(defvals[j])
elif cfgmnt[i][j] is None:
cfgmnt[i][j] = defvals[j]
# if the second entry in the list is 'None' this
# clears all previous entries of that same 'fs_spec'
# (fs_spec is the first field in /etc/fstab, ie, that device)
if cfgmnt[i][1] is None:
for j in range(i):
if cfgmnt[j][0] == cfgmnt[i][0]:
cfgmnt[j][1] = None
# for each of the "default" mounts, add them only if no other
# entry has the same device name
for defmnt in defmnts:
devname = cloud.device_name_to_device(defmnt[0])
if devname is None:
continue
if devname.startswith("/"):
defmnt[0] = devname
else:
defmnt[0] = "/dev/%s" % devname
cfgmnt_has = False
for cfgm in cfgmnt:
if cfgm[0] == defmnt[0]:
cfgmnt_has = True
break
if cfgmnt_has:
continue
cfgmnt.append(defmnt)
# now, each entry in the cfgmnt list has all fstab values
# if the second field is None (not the string, the value) we skip it
actlist = [x for x in cfgmnt if x[1] is not None]
if len(actlist) == 0:
return
comment = "comment=cloudconfig"
cc_lines = []
needswap = False
dirs = []
for line in actlist:
# write 'comment' in the fs_mntops, entry, claiming this
line[3] = "%s,comment=cloudconfig" % line[3]
if line[2] == "swap":
needswap = True
if line[1].startswith("/"):
dirs.append(line[1])
cc_lines.append('\t'.join(line))
fstab_lines = []
fstab = open("/etc/fstab", "r+")
ws = re.compile("[%s]+" % whitespace)
for line in fstab.read().splitlines():
try:
toks = ws.split(line)
if toks[3].find(comment) != -1:
continue
except:
pass
fstab_lines.append(line)
fstab_lines.extend(cc_lines)
fstab.seek(0)
fstab.write("%s\n" % '\n'.join(fstab_lines))
fstab.truncate()
fstab.close()
if needswap:
try:
util.subp(["swapon", "-a"])
except:
log.warn("Failed to enable swap")
for d in dirs:
if os.path.exists(d):
continue
try:
os.makedirs(d)
except:
log.warn("Failed to make '%s' config-mount", d)
try:
util.subp(["mount", "-a"])
except:
log.warn("'mount -a' failed")