Stop error when interface worry

[Valerio-Perez]

Issue description

Test environment

• ubuntu: 16.04
• powter-server version: 0.1.3

info file

dns-proxy:
    DNSPORT: 16350:16370
    WAN: eth0
sskcp:
    server:
        - { key: test, listenport: 7010, log-dir: /home/murka/snmplog, mode: sskcp }
        - { key: test, listenport: 7020, log-dir: /home/murka/snmplog, mode: sskcp }

How to reproduce

cd powter-server/
vi myinfo.yml 
cat myinfo.yml 
vi info.yml
make install INFO=/home/murka/powter-server/info.yml 
make test_state 
make update INFO=/home/murka/powter-server/info.yml

Actual results

(make -f sm.mk is_PREPARED_CONFGENED && make -f config.mk gen-conf && make -f sm.mk set_CONFGENED) || \
    (make -f sm.mk is_RUNNING_CONFQUEUED && make -f config.mk gen-conf && make -f sm.mk set_CONFQUEUED)
make[1]: Entering directory '/home/murka/powter-server'
make -f sm.mk is_PREPARED || make -f sm.mk is_CONFGENED 
make[2]: Entering directory '/home/murka/powter-server'
./is.sh RUNNING PREPARED 
The state is RUNNING, cannot perform actions.
sm.mk:9: recipe for target 'is_PREPARED' failed
make[2]: *** [is_PREPARED] Error 1
make[2]: Leaving directory '/home/murka/powter-server'
make[2]: Entering directory '/home/murka/powter-server'
./is.sh RUNNING CONFGENED 
The state is RUNNING, cannot perform actions.
sm.mk:9: recipe for target 'is_CONFGENED' failed
make[2]: *** [is_CONFGENED] Error 1
make[2]: Leaving directory '/home/murka/powter-server'
sm.mk:20: recipe for target 'is_PREPARED_CONFGENED' failed
make[1]: *** [is_PREPARED_CONFGENED] Error 2
make[1]: Leaving directory '/home/murka/powter-server'
make[1]: Entering directory '/home/murka/powter-server'
make -f sm.mk is_RUNNING || make -f sm.mk is_CONFQUEUED 
make[2]: Entering directory '/home/murka/powter-server'
./is.sh RUNNING RUNNING 
make[2]: Leaving directory '/home/murka/powter-server'
make[1]: Leaving directory '/home/murka/powter-server'
make[1]: Entering directory '/home/murka/powter-server'
vim /home/murka/powter-server/info.yml
cp /home/murka/powter-server/info.yml /home/murka/powter-server/server/info.queued.yml
rm -rf /home/murka/powter-server/server/conf.queued || true
mkdir /home/murka/powter-server/server/conf.queued
./confmgr.py validate --info /home/murka/powter-server/server/info.queued.yml
/home/murka/powter-server/server/info.queued.yml is valid
./confmgr.py divideinfo --info /home/murka/powter-server/server/info.queued.yml --dns /home/murka/powter-server/server/.dns-info.yml --sskcp /home/murka/powter-server/server/.sskcp-info.yml
/home/murka/powter-server/server/info.queued.yml is valid
mkdir /home/murka/powter-server/server/conf.queued/dnsconf
cd /home/murka/powter-server/server/dns-proxy-confgenerator && python3 -m confgenerator.cli -f /home/murka/powter-server/server/.dns-info.yml -d /home/murka/powter-server/server/conf.queued/dnsconf
cd /home/murka/powter-server/server/sskcp-confgenerator && python3 -m confgenerator.cli server -f /home/murka/powter-server/server/.sskcp-info.yml -d /home/murka/powter-server/server/conf.queued/sskcpconf
{'listenport': None, 'mode': None, 'key': None, 'info-file': '/home/murka/powter-server/server/.sskcp-info.yml', 'dest': '/home/murka/powter-server/server/conf.queued/sskcpconf', 'log-dir': None}
Load yaml file: /home/murka/powter-server/server/.sskcp-info.yml
Generate configuration structure.
 - create directory: /home/murka/powter-server/server/conf.queued/sskcpconf/7010
 - create log directory: /home/murka/snmplog/7010
 - create config.env.
Generate json file: /home/murka/powter-server/server/conf.queued/sskcpconf/7010/conf/kcp.json
Generate json file: /home/murka/powter-server/server/conf.queued/sskcpconf/7010/conf/ss.json
Generate configuration structure.
 - create directory: /home/murka/powter-server/server/conf.queued/sskcpconf/7020
 - create log directory: /home/murka/snmplog/7020
 - create config.env.
Generate json file: /home/murka/powter-server/server/conf.queued/sskcpconf/7020/conf/kcp.json
Generate json file: /home/murka/powter-server/server/conf.queued/sskcpconf/7020/conf/ss.json
make[1]: Leaving directory '/home/murka/powter-server'
make[1]: Entering directory '/home/murka/powter-server'
sed -i '/STATE =/c\STATE = CONFQUEUED' /home/murka/powter-server/.state.conf
make[1]: Leaving directory '/home/murka/powter-server'
make -f sm.mk is_CONFQUEUED && make -f stop.mk stop && make -f config.mk set-conf && make -f sm.mk set_CONFREADY
make[1]: Entering directory '/home/murka/powter-server'
./is.sh CONFQUEUED CONFQUEUED 
make[1]: Leaving directory '/home/murka/powter-server'
make[1]: Entering directory '/home/murka/powter-server'
make -C /home/murka/powter-server/server/sskcp-server-imageAPI-x86 stop NAME=powter-server-sskcp-7010 && make -C /home/murka/powter-server/server/sskcp-server-imageAPI-x86 remove NAME=powter-server-sskcp-7010;  make -C /home/murka/powter-server/server/sskcp-server-imageAPI-x86 stop NAME=powter-server-sskcp-7020 && make -C /home/murka/powter-server/server/sskcp-server-imageAPI-x86 remove NAME=powter-server-sskcp-7020;    
make[2]: Entering directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
docker-compose -p powter-server-sskcp-7010 -f /home/murka/powter-server/server/sskcp-server-imageAPI-x86/compose/powter-server-sskcp-7010.yml down
Stopping powter-server-sskcp-7010_sskcp-server_1 ... done
Removing powter-server-sskcp-7010_sskcp-server_1 ... done
make[2]: Leaving directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
make[2]: Entering directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
rm /home/murka/powter-server/server/sskcp-server-imageAPI-x86/compose/powter-server-sskcp-7010.yml
make[2]: Leaving directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
make[2]: Entering directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
docker-compose -p powter-server-sskcp-7020 -f /home/murka/powter-server/server/sskcp-server-imageAPI-x86/compose/powter-server-sskcp-7020.yml down
Stopping powter-server-sskcp-7020_sskcp-server_1 ... done
Removing powter-server-sskcp-7020_sskcp-server_1 ... done
make[2]: Leaving directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
make[2]: Entering directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
rm /home/murka/powter-server/server/sskcp-server-imageAPI-x86/compose/powter-server-sskcp-7020.yml
make[2]: Leaving directory '/home/murka/powter-server/server/sskcp-server-imageAPI-x86'
make -C /home/murka/powter-server/server/dns-proxy-imageAPI stop NAME=powter-server-dns
make[2]: Entering directory '/home/murka/powter-server/server/dns-proxy-imageAPI'
docker-compose -p powter-server-dns -f /home/murka/powter-server/server/dns-proxy-imageAPI/compose/powter-server-dns.yml exec dns-proxy ./clean 
ifconfig: eth0: error fetching interface information: Device not found
iptables v1.6.2: option "--to-source" requires an argument
Try `iptables -h' or 'iptables --help' for more information.
Makefile:20: recipe for target 'stop' failed
make[2]: *** [stop] Error 2
make[2]: Leaving directory '/home/murka/powter-server/server/dns-proxy-imageAPI'
stop.mk:11: recipe for target 'stop-dns' failed
make[1]: *** [stop-dns] Error 2
make[1]: Leaving directory '/home/murka/powter-server'
Makefile:26: recipe for target 'pop_config' failed
make: *** [pop_config] Error 2

Expected results

Stop without error.