Hi Jeff,
Before I start the container:
arch# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
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: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether c4:8e:8f:f7:6a:9d brd ff:ff:ff:ff:ff:ff
inet 192.168.1.4/24 brd 192.168.1.255 scope global dynamic wlp2s0
valid_lft 3189sec preferred_lft 3189sec
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:72:b7:fb:64 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 scope global docker0
valid_lft forever preferred_lft forever
inet6 fe80::42:72ff:feb7:fb64/64 scope link
valid_lft forever preferred_lft forever
arch# iptables-save
# Generated by iptables-save v1.4.21 on Tue Jan 12 20:59:13 2016
*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [45:2854]
:POSTROUTING ACCEPT [45:2854]
:DOCKER - [0:0]
-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
-A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
-A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE
COMMIT
# Completed on Tue Jan 12 20:59:13 2016
# Generated by iptables-save v1.4.21 on Tue Jan 12 20:59:13 2016
*mangle
:PREROUTING ACCEPT [1506330:1581501472]
:INPUT ACCEPT [1505336:1581278542]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [871835:287624586]
:POSTROUTING ACCEPT [871926:287632090]
:connman-INPUT - [0:0]
:connman-POSTROUTING - [0:0]
-A INPUT -j connman-INPUT
-A POSTROUTING -j connman-POSTROUTING
-A connman-INPUT -j CONNMARK --restore-mark --nfmask 0xffffffff --ctmask 0xffffffff
-A connman-POSTROUTING -j CONNMARK --save-mark --nfmask 0xffffffff --ctmask 0xffffffff
COMMIT
# Completed on Tue Jan 12 20:59:13 2016
# Generated by iptables-save v1.4.21 on Tue Jan 12 20:59:13 2016
*filter
:INPUT ACCEPT [258:45205]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [263:57608]
:DOCKER - [0:0]
-A FORWARD -o docker0 -j DOCKER
-A FORWARD -o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i docker0 ! -o docker0 -j ACCEPT
-A FORWARD -i docker0 -o docker0 -j ACCEPT
COMMIT
# Completed on Tue Jan 12 20:59:13 2016
arch# docker info
Containers: 42
Images: 57
Server Version: 1.9.1
Storage Driver: devicemapper
Pool Name: docker-8:5-548039-pool
Pool Blocksize: 65.54 kB
Base Device Size: 107.4 GB
Backing Filesystem:
Data file: /dev/loop0
Metadata file: /dev/loop1
Data Space Used: 3.692 GB
Data Space Total: 107.4 GB
Data Space Available: 6.533 GB
Metadata Space Used: 9.204 MB
Metadata Space Total: 2.147 GB
Metadata Space Available: 2.138 GB
Udev Sync Supported: true
Deferred Removal Enabled: false
Deferred Deletion Enabled: false
Deferred Deleted Device Count: 0
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
Library Version: 1.02.113 (2015-12-05)
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 4.2.5-1-ARCH
Operating System: Arch Linux (containerized)
CPUs: 4
Total Memory: 7.709 GiB
Name: arch
ID: OF5Y:H7O4:M4R6:GCF6:NSEU:LNG6:K7NV:FJDM:DUVI:6KOM:LTRB:EUPP
Now, I run
docker run -p jenkins
And now the output of the first three commands is:
arch# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
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: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether c4:8e:8f:f7:6a:9d brd ff:ff:ff:ff:ff:ff
inet 192.168.1.4/24 brd 192.168.1.255 scope global dynamic wlp2s0
valid_lft 2816sec preferred_lft 2816sec
3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:42:72:b7:fb:64 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 scope global docker0
valid_lft forever preferred_lft forever
inet6 fe80::42:72ff:feb7:fb64/64 scope link
valid_lft forever preferred_lft forever
7: veth21e0600@if6: <BROADCAST,MULTICAST,DYNAMIC,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default
link/ether 22:ab:91:58:b4:84 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet6 fe80::20ab:91ff:fe58:b484/64 scope link
valid_lft forever preferred_lft forever
arch# iptables-save
# Generated by iptables-save v1.4.21 on Tue Jan 12 21:05:29 2016
*nat
:PREROUTING ACCEPT [16:1412]
:INPUT ACCEPT [2:515]
:OUTPUT ACCEPT [117:7371]
:POSTROUTING ACCEPT [117:7371]
:DOCKER - [0:0]
-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
-A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
-A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE
COMMIT
# Completed on Tue Jan 12 21:05:29 2016
# Generated by iptables-save v1.4.21 on Tue Jan 12 21:05:29 2016
*mangle
:PREROUTING ACCEPT [1508715:1582563648]
:INPUT ACCEPT [1506675:1581613560]
:FORWARD ACCEPT [1038:726642]
:OUTPUT ACCEPT [873219:288212461]
:POSTROUTING ACCEPT [874348:288946607]
:connman-INPUT - [0:0]
:connman-POSTROUTING - [0:0]
-A INPUT -j connman-INPUT
-A POSTROUTING -j connman-POSTROUTING
-A connman-INPUT -j CONNMARK --restore-mark --nfmask 0xffffffff --ctmask 0xffffffff
-A connman-POSTROUTING -j CONNMARK --save-mark --nfmask 0xffffffff --ctmask 0xffffffff
COMMIT
# Completed on Tue Jan 12 21:05:29 2016
# Generated by iptables-save v1.4.21 on Tue Jan 12 21:05:29 2016
*filter
:INPUT ACCEPT [1597:380223]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [1647:645483]
:DOCKER - [0:0]
-A FORWARD -o docker0 -j DOCKER
-A FORWARD -o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i docker0 ! -o docker0 -j ACCEPT
-A FORWARD -i docker0 -o docker0 -j ACCEPT
COMMIT
# Completed on Tue Jan 12 21:05:29 2016
arch# docker info
Containers: 43
Images: 57
Server Version: 1.9.1
Storage Driver: devicemapper
Pool Name: docker-8:5-548039-pool
Pool Blocksize: 65.54 kB
Base Device Size: 107.4 GB
Backing Filesystem:
Data file: /dev/loop0
Metadata file: /dev/loop1
Data Space Used: 3.702 GB
Data Space Total: 107.4 GB
Data Space Available: 6.403 GB
Metadata Space Used: 9.355 MB
Metadata Space Total: 2.147 GB
Metadata Space Available: 2.138 GB
Udev Sync Supported: true
Deferred Removal Enabled: false
Deferred Deletion Enabled: false
Deferred Deleted Device Count: 0
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
Library Version: 1.02.113 (2015-12-05)
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 4.2.5-1-ARCH
Operating System: Arch Linux (containerized)
CPUs: 4
Total Memory: 7.709 GiB
Name: arch
ID: OF5Y:H7O4:M4R6:GCF6:NSEU:LNG6:K7NV:FJDM:DUVI:6KOM:LTRB:EUPP
Also and indeed I can see in
ps aux
That I have a connman process. Will learn about it, thanks for pointing out to that!