mirror of
https://github.com/ceph/ceph
synced 2025-01-08 20:21:33 +00:00
74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
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"""
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Functions to netsplit test machines.
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At present, you must specify monitors to disconnect, and it
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drops those IP pairs. This means OSDs etc on the hosts which use
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the same IP will also be blocked! If you are using multiple IPs on the
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same host within the cluster, daemons on those other IPs will get
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through.
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"""
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import logging
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import re
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log = logging.getLogger(__name__)
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def get_ip_and_ports(ctx, daemon):
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assert daemon.startswith('mon.')
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addr = ctx.ceph['ceph'].mons['{a}'.format(a=daemon)]
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ips = re.findall("[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+[:[0-9]*]*", addr)
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assert len(ips) > 0
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plain_ip = re.match("[0-9\.]*", ips[0]).group()
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assert plain_ip is not None
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port_list = []
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for ip in ips:
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ip_str, port_str = re.match("([0-9\.]*)([:[0-9]*]*)", ip).groups()
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assert ip_str == plain_ip
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if len(port_str) > 0:
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port_list.append(port_str)
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return (plain_ip, port_list)
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def disconnect(ctx, config):
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assert len(config) == 2 # we can only disconnect pairs right now
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# and we can only disconnect mons right now
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assert config[0].startswith('mon.')
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assert config[1].startswith('mon.')
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(ip1, _) = get_ip_and_ports(ctx, config[0])
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(ip2, _) = get_ip_and_ports(ctx, config[1])
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(host1,) = ctx.cluster.only(config[0]).remotes.iterkeys()
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(host2,) = ctx.cluster.only(config[1]).remotes.iterkeys()
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assert host1 is not None
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assert host2 is not None
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host1.run(
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args = ["sudo", "iptables", "-A", "INPUT", "-p", "tcp", "-s",
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ip2, "-j", "DROP"]
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)
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host2.run(
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args = ["sudo", "iptables", "-A", "INPUT", "-p", "tcp", "-s",
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ip1, "-j", "DROP"]
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)
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def reconnect(ctx, config):
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assert len(config) == 2 # we can only disconnect pairs right now
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# and we can only disconnect mons right now
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assert config[0].startswith('mon.')
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assert config[1].startswith('mon.')
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(ip1, _) = get_ip_and_ports(ctx, config[0])
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(ip2, _) = get_ip_and_ports(ctx, config[1])
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(host1,) = ctx.cluster.only(config[0]).remotes.iterkeys()
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(host2,) = ctx.cluster.only(config[1]).remotes.iterkeys()
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assert host1 is not None
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assert host2 is not None
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host1.run(
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args = ["sudo", "iptables", "-D", "INPUT", "-p", "tcp", "-s",
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ip2, "-j", "DROP"]
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)
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host2.run(
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args = ["sudo", "iptables", "-D", "INPUT", "-p", "tcp", "-s",
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ip1, "-j", "DROP"]
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)
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