gistfile1.txt

root @ master-1 /root ### ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1454 qdisc pfifo_fast state UP qlen 1000
    link/ether 02:00:0a:0a:00:bf brd ff:ff:ff:ff:ff:ff
    inet 10.10.0.191/24 brd 10.10.0.255 scope global ens3
       valid_lft forever preferred_lft forever
    inet6 fe80::aff:fe0a:bf/64 scope link 
       valid_lft forever preferred_lft forever
3: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN 
    link/ether ba:d2:79:75:78:60 brd ff:ff:ff:ff:ff:ff
6: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN 
    link/ether 56:84:7a:fe:97:99 brd ff:ff:ff:ff:ff:ff
    inet 172.17.42.1/16 scope global docker0
       valid_lft forever preferred_lft forever
7: br0: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN 
    link/ether 9e:12:2b:a5:34:40 brd ff:ff:ff:ff:ff:ff
8: tun0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN 
    link/ether 12:fd:49:c8:5c:fc brd ff:ff:ff:ff:ff:ff
    inet 10.1.0.1/24 scope global tun0
       valid_lft forever preferred_lft forever
    inet6 fe80::10fd:49ff:fec8:5cfc/64 scope link 
       valid_lft forever preferred_lft forever
9: vovsbr: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP 
    link/ether e6:d5:a9:4c:a8:8b brd ff:ff:ff:ff:ff:ff
    inet6 fe80::e4d5:a9ff:fe4c:a88b/64 scope link 
       valid_lft forever preferred_lft forever
10: vlinuxbr: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master lbr0 state UP 
    link/ether 2a:12:10:bc:2f:04 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::2812:10ff:febc:2f04/64 scope link 
       valid_lft forever preferred_lft forever
11: lbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UP 
    link/ether 2a:12:10:bc:2f:04 brd ff:ff:ff:ff:ff:ff
    inet 10.1.0.1/24 scope global lbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::84cb:8bff:fed7:db2e/64 scope link 
       valid_lft forever preferred_lft forever
13: vethe8df995: <BROADCAST,UP,LOWER_UP> mtu 1450 qdisc noqueue master ovs-system state UP 
    link/ether 42:76:85:c5:3a:2f brd ff:ff:ff:ff:ff:ff
    inet6 fe80::4076:85ff:fec5:3a2f/64 scope link 
       valid_lft forever preferred_lft forever
17: veth71aa74c: <BROADCAST,UP,LOWER_UP> mtu 1450 qdisc noqueue master ovs-system state UP 
    link/ether 92:2e:ef:10:ed:e9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::902e:efff:fe10:ede9/64 scope link 
       valid_lft forever preferred_lft forever
root @ master-1 /root ### cat /etc/sysconfig/docker
# /etc/sysconfig/docker

# Modify these options if you want to change the way the docker daemon runs
#OPTIONS='--selinux-enabled'
OPTIONS='--insecure-registry=172.30.0.0/16 --selinux-enabled'

DOCKER_CERT_PATH=/etc/docker

# If you want to add your own registry to be used for docker search and docker
# pull use the ADD_REGISTRY option to list a set of registries, each prepended
# with --add-registry flag. The first registry added will be the first registry
# searched.
# ADD_REGISTRY='--add-registry registry.access.redhat.com'

# If you want to block registries from being used, uncomment the BLOCK_REGISTRY
# option and give it a set of registries, each prepended with --block-registry
# flag. For example adding docker.io will stop users from downloading images
# from docker.io
# BLOCK_REGISTRY='--block-registry'

# If you have a registry secured with https but do not have proper certs
# distributed, you can tell docker to not look for full authorization by
# adding the registry to the INSECURE_REGISTRY line and uncommenting it.
# INSECURE_REGISTRY='--insecure-registry'

# On an SELinux system, if you remove the --selinux-enabled option, you
# also need to turn on the docker_transition_unconfined boolean.
# setsebool -P docker_transition_unconfined 1

# Location used for temporary files, such as those created by
# docker load and build operations. Default is /var/lib/docker/tmp
# Can be overriden by setting the following environment variable.
# DOCKER_TMPDIR=/var/tmp

# Controls the /etc/cron.daily/docker-logrotate cron job status.
# To disable, uncomment the line below.
# LOGROTATE=false