Port published via Docker -- can't connect - docker

Question

I'm trying to run jupyter/jupyter-notebook in a Docker container.
#!/bin/bash
docker run --detach --name jupyter \
--publish 4000:8888 \
--volume /root/docker/jupyter:/home/jovyan \
jupyter/tensorflow-notebook start-notebook.sh --NotebookApp.password='sha1:XXXXXXX...'
However, something seems to go wrong.
root#vmd16038:~/docker# wget 0.0.0.0:4000
--2016-12-30 11:55:32-- http://0.0.0.0:4000/
Connecting to 0.0.0.0:4000... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Retrying.
It works when I do it from inside the container though.
root#vmd16038:~/docker# docker exec -it jupyter wget localhost:8888
--2016-12-30 10:58:54-- http://localhost:8888/
Resolving localhost (localhost)... ::1, 127.0.0.1
Connecting to localhost (localhost)|::1|:8888... connected.
HTTP request sent, awaiting response... 302 Found
Location: /tree [following]
--2016-12-30 10:58:54-- http://localhost:8888/tree
Reusing existing connection to [localhost]:8888.
HTTP request sent, awaiting response... 302 Found
Location: /login?next=%2Ftree [following]
--2016-12-30 10:58:54-- http://localhost:8888/login?next=%2Ftree
Reusing existing connection to [localhost]:8888.
HTTP request sent, awaiting response... 200 OK
Length: 5176 (5.1K) [text/html]
Saving to: ‘index.html’
index.html 100%[==========================================================>] 5.05K --.-KB/s in 0s
2016-12-30 10:58:54 (562 MB/s) - ‘index.html’ saved [5176/5176]
Output of docker ps
65edf25e4de4 jupyter/tensorflow-notebook "tini -- start-notebo" 6 minutes ago Up 6 minutes 0.0.0.0:4000->8888/tcp
What could be going wrong here? I'm quite new to Docker and I don't know how to debug this problem.
Update: As requested by #cen, docker inspect jupyter
[
{
"Id": "af3f5185f0a84f151fa3889eb0f6133403b9c85838d4027a256f07b904ea9f36",
"Created": "2016-12-30T11:02:33.95435373Z",
"Path": "tini",
"Args": [
"--",
"start-notebook.sh",
"--NotebookApp.password=sha1:XXXXXXXXX..."
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 21923,
"ExitCode": 0,
"Error": "",
"StartedAt": "2016-12-30T11:02:34.250859339Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:6f160f85eb62403786a30639eedd63412e8381a10d492a378c07f220e9332336",
"ResolvConfPath": "/var/lib/docker/containers/af3f5185f0a84f151fa3889eb0f6133403b9c85838d4027a256f07b904ea9f36/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/af3f5185f0a84f151fa3889eb0f6133403b9c85838d4027a256f07b904ea9f36/hostname",
"HostsPath": "/var/lib/docker/containers/af3f5185f0a84f151fa3889eb0f6133403b9c85838d4027a256f07b904ea9f36/hosts",
"LogPath": "/var/lib/docker/containers/af3f5185f0a84f151fa3889eb0f6133403b9c85838d4027a256f07b904ea9f36/af3f5185f0a84f151fa3889eb0f6133403b9c85838d4027a256f07b904ea9f36-json.log",
"Name": "/jupyter",
"RestartCount": 0,
"Driver": "aufs",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": [
"/root/docker/jupyter:/home/jovyan"
],
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"8888/tcp": [
{
"HostIp": "127.0.0.1",
"HostPort": "4000"
}
]
},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "",
"Cgroup": "",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": null,
"UTSMode": "",
"UsernsMode": "",
"ShmSize": 67108864,
"Runtime": "runc",
"ConsoleSize": [
0,
0
],
"Isolation": "",
"CpuShares": 0,
"Memory": 0,
"CgroupParent": "",
"BlkioWeight": 0,
"BlkioWeightDevice": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DiskQuota": 0,
"KernelMemory": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": -1,
"OomKillDisable": false,
"PidsLimit": 0,
"Ulimits": null,
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0
},
"GraphDriver": {
"Name": "aufs",
"Data": null
},
"Mounts": [
{
"Source": "/root/docker/jupyter",
"Destination": "/home/jovyan",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
}
],
"Config": {
"Hostname": "af3f5185f0a8",
"Domainname": "",
"User": "jovyan",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"8888/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/opt/conda/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"DEBIAN_FRONTEND=noninteractive",
"CONDA_DIR=/opt/conda",
"SHELL=/bin/bash",
"NB_USER=jovyan",
"NB_UID=1000",
"HOME=/home/jovyan",
"LC_ALL=en_US.UTF-8",
"LANG=en_US.UTF-8",
"LANGUAGE=en_US.UTF-8",
"XDG_CACHE_HOME=/home/jovyan/.cache/"
],
"Cmd": [
"start-notebook.sh",
"--NotebookApp.password=sha1:XXXXXXXXX..."
],
"Image": "jupyter/tensorflow-notebook",
"Volumes": null,
"WorkingDir": "/home/jovyan/work",
"Entrypoint": [
"tini",
"--"
],
"OnBuild": null,
"Labels": {}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "1101443ef853ceecafa98b81ddf5598a35af6c68dbb76ec54dcbe3d11453c467",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"8888/tcp": [
{
"HostIp": "127.0.0.1",
"HostPort": "4000"
}
]
},
"SandboxKey": "/var/run/docker/netns/1101443ef853",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "331bbeaa9e0d5b447e76d87224f2685b4fdcf33ef96f3d1918093f8c3760a8e1",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.5",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:05",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "a762e41b430703ebc04210030c60988c92fcd64aa0ab224e779f2523e51de1a3",
"EndpointID": "331bbeaa9e0d5b447e76d87224f2685b4fdcf33ef96f3d1918093f8c3760a8e1",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.5",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:05"
}
}
}
}
]
And netstat -nat | grep 4000
tcp 0 0 127.0.0.1:4000 0.0.0.0:* LISTEN

Answer 1

0.0.0.0 means that it is listening on all IP addresses, it is not valid as a destination for sending HTTP requests. Please try the following on the Docker host machine.
$ wget localhost:4000

Answer 2

you are using wrong IP address wget 0.0.0.0:4000 instead of it use
localhost:4000 or eth0(IP):4000