I have two containers running on Ubuntu Server 22.04 LTS.
One of them is Selenium Grid and the second one is Python container that works in the connection with mentioned above Selenium container.
How can I get these two containers correctly restarted after system poweroff or reboot?
I tried this:
docker update --restart [on-failure] [always] [unless-stopped] container_grid docker update --restart [on-failure] [always] [unless-stopped] container_python
The Selenium Grid container restarts correctly, but Python container keeps restarting in a loop.
As I can suppose it cannot by some reason establish connection to the second one, exits with the code 1 and keeps restarting.
How can I avoid this? Maybe there is a solution that adds delay or sets the order of containers restart after turning on the system? Or should I simply add some delay in Python code because there is no any simple solution to this?
I am not software developer but automation engineer so could somebody help me with the solution. Maybe it would e Docker Compose or something else.
Thanks in advance.
So) Solved this problem via crontab.
Selenium container starts in accordance with "--restart on-failure" option.
My Python container starts with a delay in accordance with crontab command:
#reboot sleep 20 && docker start [python_container]
I'm quite new to software development and having some issues setting up a docker container.
I've pull the docker container and run it. Now I want to apply some configuration to my container with
docker run --rm --network="ansible_default" -v C:\folder\folder1\ansible\playbooks:/ansible/playbooks docker.<address>/ansible ansible-playbook -i host localhost.playbook.yml
But when I run the above code, it just gives an error:
ERROR the playbook localhost.playbook.yml does not appear to be a file
I am running on administration powershell and have cd into the folder that contains the yaml files. (so inside C:\folder\folder1\ansible\playbooks)
Do I need ansible installed? Any pointers would be greatly appreciated!
EDIT: The docker container exits with a code 2, I'm supposed to be able to access it via localhost:8080 but it's just a blank screen. Exited(2) I'm not too sure what it means, haven't found much success online.
Turns out the solution is to reinstall Docker.
I am using docker for the first time and I was trying to implement this -
https://docs.docker.com/get-started/part2/#tag-the-image
At one stage I was trying to connect with localhost by this command -
$ curl http://localhost:4000
which showed this error-
curl: (7) Failed to connect to localhost port 4000: Connection refused
However, I have solved this by following code -
$ docker-machine ip default
$ curl http://192.168.99.100:4000
After that everything was going fine, but in the last part, I was trying to run the app by using following line according to the tutorial...
$ docker run -p 4000:80 anibar/get-started:part1
But, I got this error
C:\Program Files\Docker Toolbox\docker.exe: Error response from daemon: driver failed programming external connectivity on endpoint goofy_bohr (63f5691ef18ad6d6389ef52c56198389c7a627e5fa4a79133d6bbf13953a7c98): Bind for 0.0.0.0:4000 failed: port is already allocated.
You need to make sure that the previous container you launched is killed, before launching a new one that uses the same port.
docker container ls
docker rm -f <container-name>
Paying tribute to IgorBeaz, you need to stop running the current container. For that you are going to know current CONTAINER ID:
$ docker container ls
You get something like:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
12a32e8928ef friendlyhello "python app.py" 51 seconds ago Up 50 seconds 0.0.0.0:4000->80/tcp romantic_tesla
Then you stop the container by:
$ docker stop 12a32e8928ef
Finally you try to do what you wanted to do, for example:
$ docker run -p 4000:80 friendlyhello
I tried all the above answers, none of them worked, in my case even docker container ls doesn't show any container running. It looks like the problem is due to the fact that the docker proxy is still using ports although there are no containers running. In my case I was using ubuntu. Here's what I tried and got the problem solved, just run the following two commands:
sudo service docker stop
sudo rm -f /var/lib/docker/network/files/local-kv.db
I solved it this way:
First, I stopped all running containers:
docker-compose down
Then I executed a lsof command to find the process using the port (for me it was port 9000)
sudo lsof -i -P -n | grep 9000
Finally, I "killed" the process (in my case, it was a VSCode extension):
kill -9 <process id>
The quick fix is a just restart docker:
sudo service docker stop
sudo service docker start
Above two answers are correct but didn't work for me.
I kept on seeing blank like below for docker container ls
then I tried, docker container ls -a and after that it showed all the process previously exited and running.
Then docker stop <container id> or docker container stop <container id> didn't work
then I tried docker rm -f <container id> and it worked.
Now at this I tried docker container ls -a and this process wasn't present.
When I used nginx docker image, I also got this error:
docker: Error response from daemon: driver failed programming external connectivity on endpoint recursing_knuth (9186f7d7f523732b99d3510029cde9679f3f3fe7b7eb5f612d54c4aacea58220): Bind for 0.0.0.0:8080 failed: port is already allocated.
And I solved it using following commands:
$ docker container ls
$ docker stop [CONTAINER ID]
Then, running this docker container(like this) again is ok:
$ docker run -v $PWD/vueDemo:/usr/share/nginx/html -p 8080:80 -d nginx:alpine
You just need to stop the previous docker container.
I have had same problem with docker-compose, to fix it:
Killed docker-proxy processe
Restart docker
Start docker-compose again
docker ps will reveal the list of containers running on docker. Find the one running on your needed port and note down its PID.
Stop and remove that container using following commands:
docker stop PID
docker rm PID
Now run docker-compose up and your services should run as you have freed the needed port.
on linux 'sudo systemctl restart docker' solved the issue for me
For anyone having this problem with docker-compose.
When you have more than one project (i.e. in different folders) with similar services you need to run docker-compose stop in each of your other projects.
If you are using Docker-Desktop, you can quit Docker Desktop and then restart it. It solved the problem for me.
In my case, there was no process to kill.
Updating docker fixed the problem.
It might be a conflict with the same port specified in docker-compose.yml and docker-compose.override.yml or the same port specified explicitly and using an environment variable.
I had a docker-compose.yml with ports on a container specified using environment variables, and a docker-compose.override.yml with one of the same ports specified explicitly. Apparently docker tried to open both on the same container. docker container ls -a listed neither because the container could not start and list the ports.
For me the containers where not showing up running, so NOTHING was using port 9010 (in my case) BUT Docker still complained.
I did not want to reset my Docker (for Windows) so what I did to resolve it was simply:
Remove the network (I knew that before a container was using this network with the port in question (9010) docker network ls docker network rm blabla (or id)
I actually used a new network rather than the old (buggy) one but shouldn't be needed
Restart Docker
That was the only way it worked for me. I can't explain it but somehow the "old" network was still bound to that port (9010) and Docker kept on "blocking" it (whinching about it)
FOR WINDOWS;
I killed every process that docker use and restarted the docker service on services. My containers are working now.
It is about ports that is still in use by Docker even though you are not using on that moment.
On Linux, you can run sudo netstat -tulpn to see what is currently listening on that port. You can then choose to configure either that process or your Docker container to bind to a different port to avoid the conflict.
Stopping the container didn't work for me either. I changed the port in docker-compose.yml.
For me, the problem was mapping the same port twice.
Due to a parametric docker run, it ended up being something like
docker run -p 4000:80 -p 4000:80 anibar/get-started:part1
notice double mapping on port 4000.
The log is not informative enough in this case, as it doesn't state I was the cause of the double mapping, and that the port is no longer bound after the docker run command returns with a failure.
Don't forget the easiest fix of all....
Restart your computer.
I have tried most of the above and still couldn't fix it. Then just restart my Mac and then it's all back to normal.
For anyone still looking for a solution, just make sure you have binded your port the right way round in your docker-compose.yml
It goes:
- <EXTERNAL SERVER PORT>:<INTERNAL CONTAINER PORT>
Had the same problem. Went to Docker for Mac Dashboard and clicked restart. Problem solved.
my case was dump XD I was exposing port 80 twice :D
ports:
- '${APP_PORT:-80}:80'
- '${APP_PORT:-8080}:8080'
APP_PORT is defined, thus 80 was exposed twice.
I tried almost all solutions and found out the probable/possible reason/solution. So, If you are using traefik or any other networking server, they internally facilitate proxy for load balacing. That, most use the blueprint as it, works pretty fine. It then passes the load control entirely to nginx or similiar proxy servers. So, stopping, killing(networking server) or pruning might not help.
Solution for traefik with nginx,
sudo /etc/init.d/nginx stop
# or
sudo service nginx stop
# or
sudo systemctl stop nginx
Credits
How to stop docker processes
Making Docker Stop Itself <- Safe and Fast
this is the best way to stop containers and all unstoppable processes: making docker do the job.
go to docker settings > resources. change any of the resource and click apply and restart.
docker will stop itself and its every process -- even the most stubborn ones that might not be killed by other commonly used commands such as kill or more wild commands like rm suggested by others.
i ran into a similar problem before and all the good - proper - tips from my colleagues somehow did not work out. i share this safe trick whenever someone in my team asks me about this.
Error response from daemon: driver failed programming external connectivity on endpoint foobar
Bind for 0.0.0.0:8000 failed: port is already allocated
hope this helps!
simply restart your computer, so the docker service gets restarted
I am trying to connect to docker containers using the default SSHManager.
These containers only have a running sshd, with public key authentication, and julia installed.
Here is my dockerfile:
FROM rastasheep/ubuntu-sshd
RUN apt-get update && apt-get install -y julia
RUN mkdir -p /root/.ssh
ADD id_rsa.pub /root/.ssh/authorized_keys
I am running the container using:
sudo docker run -d -p 3333:22 -it --name julia-sshd julia-sshd
And then in the host machine, using the julia repl, I get the following error:
julia> import Base:SSHManager
julia> addprocs(["root#localhost:3333"])
stdin: is not a tty
Worker 2 terminated.
ERROR (unhandled task failure): EOFError: read end of file
Master process (id 1) could not connect within 60.0 seconds.
exiting.
I have tested that I can connect to the container via ssh without password.
I have also tested that in julia repl I can add a regular machine with julia installed to the cluster and it works fine.
But I cannot get this two things working together. Any help or suggestions will be apreciated.
I recommend you to also deploy the Master in a Docker container. It makes your environment easily and fully reproducible.
I'm working on a way of deploying Workers in Docker containers on-demand. i.e., the Master deployed in a container can deploy further DockerizedJuliaWorkers. It is similar to https://github.com/gsd-ufal/Infra.jl but assuming that Master and Workers run on the same host, which makes things not so hard.
It is an on-going work and I plan to finish next weeks. In a nutshell:
1) You'll need a simple DockerBackend and a wrapper to transparently run containers, set up SSH, and call addprocs with all the low-level parameters (i.e., the DockerizedJuliaWorker.jl file):
https://github.com/NaelsonDouglas/DistributedMachineLearningThesis/tree/master/src/docker
2) Read here how to build the Docker image (Dockerfile is included):
https://github.com/NaelsonDouglas/DistributedMachineLearningThesis
Please tell me if you have any suggestion on how to improve it.
Best,
André Lage.
I was trying rancher.
I used the command:
sudo docker run -d --restart=always -p 8080:8080 rancher/server
to start run it.
Then I stopped the container and removed it. But if I stop and restart the docker daemon or reboot my laptop, and lookup running containers using docker ps command, it will have rancher server running again. How do I stop/remove it completely and make sure it will not run again.
Note: following issue 11008 and PR 15348 (commit fd8b25c, docker v1.11.2), you would avoid the issue with:
sudo docker run -d --restart=unless-stopped -p 8080:8080 rancher/server
In your current situation, thanks to PR 19116, you can use docker update to update the restart policy.
docker update --restart=unless-stopped <yourContainerID_or_Name>
Then stop your container, restart your docker daemon: it won't restart said container.
The OP codefire points to another reason in the comments:
When I first ran the start rancher server command, I didn't notice that it was being downloaded. So I may have retried that command a couple times.
That must be why the job kept on restarting even after stopping and removing containers that was started as rancher server.
After stopping and removing 8+ containers, it finally stopped
That is why I have aliases to quickly remove any stopped containers.
it keeps restarting because you're using --restart=always flag
Run
docker logs <CONTAINER_ID>
to see if your code is encountering any errors that does not allow the container to run properly
Thanks for the answers, but for me even using the answer von VonC the problem continues.
After researching Kubernetes was running the image again and again.
Use kubectl get nodes to get the nodes u have and later run:
kubectl drain NODE_ID --delete-emptydir-data --ignore-daemonsets
These solutions are correct! But for me there was a situation when these answers did not work out. That's because I was running service in the background I did not remove it so it keeps running even you remove container it will restart it again and so on...
So answer to that specific problem is
docker service rm service name or id
Docker run in your locahost if you shutdown/kill docker damen then docker stop and inside in docker container delete data if you not save your data in external volume.
docker run -d nginxlogs:/var/log/nginx -p 5000:80 nginx