I'm trying to follow the beginner tutorial at training.play-with-docker.com. At Task 2, step 6, I do the following and get the error as below:
PS C:\Users\david.zemens\Source\Repos\linux_tweet_app> docker container run --detach --publish 80:80 --name linux_tweet_app $DOCKERID/linux_tweet_app:1.0
d39667ed1deafc382890f312507ae535c3ab2804907d4ae495caaed1f9c2b2e1
C:\Program Files\Docker\Docker\Resources\bin\docker.exe: Error response from daemon: driver failed programming external connectivity on endpoint linux_tweet_app (a819223be5469f4e727daefaff3e82eb68eb0674e4a46ee1a32e703ce4bd384d): Error starting userland proxy: listen tcp 0.0.0.0:80: bind: An attempt was made to access a socket in a way forbidden by its access permissions.
I am using Docker Desktop on a Win10 machine locally. I've tried resetting Docker as suggested here. Error persists. Since something else must be using port 80, I should be able to avoid the error by using a different port, right?
PS C:\Users\david.zemens\Source\Repos\linux_tweet_app> docker container run --detach --publish 1337:1337 --name linux_tweet_app $DOCKERID/linux_tweet_app:1.0
Right! docker ps now confirms the container is running:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b700df12c2d1 dzemens/linux_tweet_app:1.0 "nginx -g 'daemon of…" About a minute ago Up About a minute 80/tcp, 443/tcp, 0.0.0.0:1337->1337/tcp linux_tweet_app
But when I try to view the webpage that the tutorial sends me to, I get an error in the browser.
I'm not sure how the link is dynamically generated but it looks something like this:
http://ip172-18-0-32-blsfgt2d7o0g00epuqi0-80.direct.labs.play-with-docker.com/
Browser error as below:
The proxy could not connect to the destination in time.
URL: http://ip172-18-0-32-blsfgt2d7o0g00epuqi0-80.direct.labs.play-with-docker.com/
Failure Description: :errno: 104 - 'Connection reset by peer' on socketfd -1:server state 7:state 9:Application response 502 cannotconnect
Another highly-upvoted answer suggests I need to "disable Windows 10 fast startup" -- I have not tried this yet, mainly because I'm not sure what the full repercussions are with that setting.
Is there something stupidly obvious that I'm overlooking here? Shouldn't I be able to run this on different ports? If not, why not? If I have to use 80:80, but System is already using that port, won't I have some further problems if I try to kill that pid?
PS C:\Users\david.zemens\Source\Repos\linux_tweet_app> netstat -a -n -o | findstr :80 | findstr LISTENING
TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4
TCP 0.0.0.0:8003 0.0.0.0:0 LISTENING 4
TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 1348
TCP 0.0.0.0:8081 0.0.0.0:0 LISTENING 4688
TCP 127.0.0.1:8080 0.0.0.0:0 LISTENING 2016
TCP 127.0.0.1:8082 0.0.0.0:0 LISTENING 28536
TCP [::]:80 [::]:0 LISTENING 4
TCP [::]:8003 [::]:0 LISTENING 4
TCP [::]:8080 [::]:0 LISTENING 1348
TCP [::]:8081 [::]:0 LISTENING 4688
I made a small change in the Dockerfile changing EXPOSE 80 443 to EXPOSE 1337 443 and I'm now able to view my app by navigating to localhost:1337 in my browser. I think that will get me through the next steps in the training module, but still curious if I'm doing something wrong.
This seems to work regardless of the change in Dockerfile (I've removed and republished after changing Dockerfile).
PS C:\Users\david.zemens\Source\Repos\linux_tweet_app> docker container run --detach --publish 1337:80 --name linux_tweet_app $DOCKERID/linux_tweet_app:1.0
Try this
> net stop winnat
> docker start ...
> net start winnat
A part of the problem is that you're using the wrong mapping. The application uses the port 80, but you're mapping the ports 1337 to 1337.
The correct command should be:
PS C:\Users\david.zemens\Source\Repos\linux_tweet_app> docker container run --detach --publish 1337:80 --name linux_tweet_app $DOCKERID/linux_tweet_app:1.0
It may be because your IIS or some other server is already running on port 80.
Try stop the IIS and it should work.
Reference: https://forums.docker.com/t/error-starting-userland-proxy-listen-tcp-0-0-0-0-bind-an-attempt-was-made-to-access-a-socket-in-a-way-forbidden-by-its-access-permissions/81299/7
Related
I am trying to follow a tutorial for Docker beginners (https://docs.docker.com/get-started/)
When I try to run this command:
$ docker run -d -p 80:80 docker/getting-started
I get this Error:
docker: Error response from daemon: driver failed programming external connectivity on endpoint suspicious_murdock (863f389a032ea76d187c4387701b9eb0b6d4de4d0a9ed414616fa6b4715346ab): Error starting userland proxy: listen tcp4 0.0.0.0:80: bind: address already in use.
I tried removing all the dockers docker rm -fv $(docker ps -aq) but it did nothing.
What can I do?
I had to stop apache2 from running on port :80 - sudo service apache2 stop
Or you can use a different port like docker run -d -p 8080:80 docker/getting-started. This way you do not need to stop the apache2 running on the host.
In case you change ports and still encounter the same problem especially on Ubuntu 18 try stopping your apache serve and mysql/mariadb port if you further encounter mysql/mariadb port already been used.
Try these two commands.
sudo service apache2 stop
sudo service mysql stop
sudo service mariadb stop
why is this error showing?
This error means that you have a process listening to port 80 (the default HTTP port). This is probably a server of some sorts like apache/nginx/lighttpd.
Other answers suggest closing a database (mysql/mariadb), but - if configured correctly - they will be using a different port (most often 3306). This means that stopping your database will probably not solve the issue, since they are not using port 80.
how to find out what is causing this?
from here:
In a terminal type (with sudo, so it also shows root processes):
sudo lsof -i :80
you should get something like this:
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
lighttpd 1713 www-data 4u IPv6 36989 0t0 TCP *:http (LISTEN)
lighttpd 1713 www-data 5u IPv4 36990 0t0 TCP *:http (LISTEN)
firefox-b 23384 your-user 150u IPv4 122957 0t0 TCP pop-os:37322->ef-in-f94.1e100.net:http (ESTABLISHED)
firefox-b 23384 your-user 174u IPv4 122155 0t0 TCP pop-os:37314->ef-in-f94.1e100.net:http (ESTABLISHED)
Note the (LISTEN) vs (ESTABLISHED) at the end. (LISTEN) is the culprit here, caused by the command lighttpd, which is a server. Also, the USER of lighttpd is www-data, which is not you, so it would not show without sudo.
Now, to stop it, use:
sudo service stop lighttpd
where you replace lighttpd with whatever the command is (of course you kind of want to know what you're doing here, since you don't accidentally want to pull your website offline).
I'm running a setup of 3 Ubuntu virtual machines. Two running the Python production code base and the other has a Memcached Docker container. On the Memcached machine I ran docker run -dit --name production-memcached --publish 11211:11211 memcached:latest.
The code base gets the following error message when trying to interact with it:
"exception": "TimeoutError(10060, 'A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond', None, 10060, None)"
I have ran docker exec -it production-memcached memcached stats and get the error message below.
failed to listen on TCP port 11211: Address already in use
However I've ran netstat -plnt and get tcp6 0 0 :::11211 :::* LISTEN 35030/docker-proxy, which looks fine to me.
I was able to get this to work by opening port 80 and using iptables to forward incoming port 80 to port 11211 but would prefer to use the Memcached port number.
The Memcached client is created by the following line:
client = base.Client(("domain.co.uk", 11211))
Any help would be appreciated, thanks.
DigitalOcean doesn't allow in-traffic on port 11211 to its virtual machines. If you want a Memcached machine you'll also need a virtual machine to act a proxy between you and it. I hope this saves someone the headache it caused me!
Following the tutorial on https://docs.docker.com/get-started/part2/.
I start my docker container with docker run -p 4000:80 friendlyhello
and see
* Serving Flask app "app" (lazy loading)
* Environment: production
WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead.
* Debug mode: off
* Running on http://0.0.0.0:8088/ (Press CTRL+C to quit)
But it's inaccessible from the expected path of localhost:4000.
$ curl http://localhost:4000/
curl: (7) Failed to connect to localhost port 4000: Connection refused
$ curl http://127.0.0.1:4000/
curl: (7) Failed to connect to 127.0.0.1 port 4000: Connection refused
Okay, so maybe it's not on my local host. Getting the container ID I retrieve the IP with
docker inspect --format '{{ .NetworkSettings.IPAddress }}' 7e5bace5f69c
and it returns 172.17.0.2 but no luck! curl continues to give the same responses. I can confirm something is running on 4000....
lsof -i :4000
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
com.docke 94812 travis 18u IPv6 0x7516cbae76f408b5 0t0 TCP *:terabase (LISTEN)
I'm pulling my hair out on this. I've read through the troubleshooting guide and can confirm
* not on a proxy
* don't use a custom dns
* I'm having issues connecting to docker, not docker connecting to my pip server.
Running the app.py with python app.py the server starts and I'm able to hit it. What am I missing?
Did you accidentally put port=8088 at the bottom of your app.py file? When you are running this the last line of your output is saying that your python app is exposed on port 8088 not 80.
To confirm you can run either modify the app.py file and rebuild the image, or alternatively you could run: docker run -p 4000:8088 friendlyhello which would map your local port 4000 to 8088 in the container.
Try to run it using:
docker run -p 4000:8088 friendlyhello
As you can see from the logs, your app starts on port 8088, but you connect 4000 to 80 where on 80, nothing is actually listening.
I am new to Docker and learning from here: https://www.lynda.com/Docker-tutorials/Run-container-ports-volumes/576584/604557-4.html?org=mastercard.com
I already went through the link and reponse seem confusing : https://github.com/docker/compose/issues/3277
Error:
docker container run -d --name web -p 8080:8080 jboss/wildfly
4f75dcbf8a56262a22239b5ef146a475f7d877a1707392561bb9419542510478
docker: Error response from daemon: driver failed programming external connectivity on endpoint web (645121a4674ed37eaeefb46c2afcff6512477dba4dd98f93d4f8f5e40750f111): Error starting userland proxy: listen tcp 0.0.0.0:8080: bind: address already in use.
$ sudo netstat -nlp | grep 8080
tcp6 0 0 :::8080 :::* LISTEN 2527/dockerd
The part 8080/tcp is confusing to me and not sure why it's coming.
docker container ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c65137b42e56 jboss/wildfly "/opt/jboss/wildfl..." 10 minutes ago Up 10 minutes 8080/tcp, 0.0.0.0:9090->9090/tcp web
If you are on mac try
docker container run -d --name web -p 127.0.0.1:8080:8080 jboss/wildfly
Good Luck
Daniel Farina
After setup of enketo express, When i run enketo-express using command "docker-compose up -d" on an ubuntu server, it shows an below error related to nginx
ERROR: for docker_nginx_1 Cannot start service nginx: b'driver failed programming external connectivity on endpoint docker_nginx_1 (7c414e255d50f42a0fa14d07c0b0d29125f666d77e55e5eb4437e43e3e4d9454): Error starting userland proxy: listen tcp 0.0.0.0:80: bind: address already in use'
ERROR: for nginx Cannot start service nginx: b'driver failed programming external connectivity on endpoint docker_nginx_1 (7c414e255d50f42a0fa14d07c0b0d29125f666d77e55e5eb4437e43e3e4d9454): Error starting userland proxy: listen tcp 0.0.0.0:80: bind: address already in use'
By default 80 port is used by the apache service on ubuntu server. This means you need to change your port.
Just try to Bind port 8081 of your ubuntu with the port 80 of the container. For this use this command,
$ run docker run -d -p 8081:80 --name webserver nginx
This creates the link you need to access it at http://localhost:8081/
Note- Change port in "setup/docker/docker-compose.yml" file. eg: 80:80 to 8081:80
It's because something is already running on port 80 on the host machine.
View which process it is, get the PID -
$ lsof -i:80
$ netstat -tulnap | grep :80
Kill the process -
$ kill -9 $PID
Try now & you will be good -
$ docker-compose up -d