def configure_docker_hostnames_to_dnsmasq():
hostname2ip_map = {}
cli = get_client()
try:
containers = cli.containers()
except docker.client.APIError as e:
logger.error("error when doing docker ps.")
return
for container in containers:
try:
container_info = cli.inspect_container(container)
hostname_ip = utility.parse_hostname_ip(container_info)
hostname2ip_map[hostname_ip[0]] = hostname_ip[1]
except docker.client.APIError as e:
logger.error("error when inspecting container:" + container["Id"])
GangerDns.generate_dnsmasq_host(hostname2ip_map)
GangerDns.restart_dns_masq()
parser.add_option(
"-b",
"--docker-bridge",
dest="bridge",
action="store",
default="docker0",
help="the name of docker network bridge",
)
parser.add_option("-s", "--dns-server", dest="dserver", action="store", help="upstream dns server name")
# parser.add_option("", "")
(options, args) = parser.parse_args()
numeric_level = getattr(logging, options.log_level.upper(), None)
if not isinstance(numeric_level, int):
raise ValueError("Invalid log level: %s" % options.log_level)
logging.basicConfig(level=numeric_level)
# set docker host
docker_host = options.url
if options.init_dns:
gangerdns = GangerDns(options.dserver, options.bridge)
gangerdns.configure_dnsmasq()
GangerDns.restart_dns_masq()
elif options.docker_description != None:
conf = GangerConfiguration(options.docker_description)
start_dockers(conf.get_docker_specs())
elif options.update_dns:
configure_docker_hostnames_to_dnsmasq()
