unable to connect to docker container from host

One thing to note is that we are using the "local" network as an overlay connecting our dispirat stacks. Asking for help, clarification, or responding to other answers. This default network doesn't allow the containers to connect to the host. See: https://en.wikipedia.org/wiki/.local, We began to see this issue when we upgraded or Docker version from 19.3.11 to 20.10.8, Additional environment details (AWS, VirtualBox, physical, etc.). Could you try running the container outside docker-compose via docker run, and binding to a specific address, via "-p IP:host_port:container_port"? Ask Question . By clicking Sign up for GitHub, you agree to our terms of service and Here's how to access localhost or 127.0.0.1 from within a Docker container. You can use this proxy in your web browser as it will forward "non-docker" traffic (say to google.com) to the internet. Unable to connect to SQL Docker container from host on home wifi. Well occasionally send you account related emails. I'll reopen this issue until I can confirm for sure that this was included. This is a puzzler, and I'm hoping that by writing a StackOverflow question, I gain some fresh insights. MSDN Support, feel free to contact MSDNFSF@microsoft.com. Just using netcat to check the connectivity fails. and enable "SOCKS Proxy" using "localhost:8888", hit OK and then Apply. By using the hosts public address, your web container will be able to communicate with the SMTP container. The ubuntu-container used in this test was created from a jetbrains/teamcity-agent:2021.1.2 base. Sign in 172.17.0.2 First using the IP address of the Docker host, next using the CNAME that refers to the Docker host, last using the FQDN of the docker host. However if that doesn't work or is impractical for your use-case, then perhaps you could try this experimental build which contains a SOCKS server: https://download-stage.docker.com/mac/bysha1/52ea5bcc410a8b62f03f09aa04ad4b7ffb9eed0c/Docker.dmg, Version 18.03.0-ce-rc2-mac56 (23206) How to get a Docker container's IP address from the host, Exposing a port on a live Docker container, Docker: Copying files from Docker container to host. As suggested from the docker docs , I have substituted all occurrences of localhost in my Web.config with host.docker.internal : The only thing I wish it allowed for was DNS resolution as some of our applications use hostnames for internal communication. FoxyProxy) or (more technical) with proxy.pac file. nslookup - DNS lookup name. If you have found a problem that seems similar to this, please open a new issue. docker compose file version: '3'services: web: build: . Instead of the localhost I used the IP which I got from the docker-machine ip default. First using the IP address of the Docker host, next using the CNAME that refers to the Docker host, last using the FQDN of the docker host. Let me know if you get it to work and how useful it is (or not). A network error or instance specific errror occurred while establishing a connection to SQL Server. Is wget localhost:9000 failing too? I don't know if my step-son hates me, is scared of me, or likes me? I have created a port forwarding using netsh from the external IP to the interal IP 10.0.75.2 for this to work. Actual behavior Pinging Windows host IP from docker container does not work, but pinging any other host on the same network from inside docker container works. You can also use the -d flag, that runs the container in the background. Avoid the use of OS-specific DNS names flavors like: In Docker for Mac and Docker for Windows, you can connect to the host out of the box by using the special DNS name: To get a consistent behavior on all platforms (Mac, Windows, and Linux) use. A lot of people especially enterprise developers are already using a system proxy. Are there developed countries where elected officials can easily terminate government workers? Every other mechanism that would resolve down to the same IP address works. I would like to connect my dockerized app to ports on my local host, to use development databases, etc. When I am doing a curl from inside the container, I am just doing a `docker exec` to get inside. When I check the error log: I'm going to assume the main OS is Linux, for simplicity of explanation. If you cant is because some docker services are broken, just restart docker. You need to create a new bridge docker network and attach the container to this network. Everytime I run docker-compose down and start it back up again my database is wiped clean. rev2023.1.17.43168. Did Richard Feynman say that anyone who claims to understand quantum physics is lying or crazy? The docker instance ip is 172.17.0.2 , but I don't found docker0 netcard. I'll add the logs to the main question as update :). This question already has answers here: deploying a minimal flask app in docker server connection issues(7 answers) closed 2 years ago.i am trying to move a simple flask application to docker, but i can't see to figure out why the application is not accessible from the browser. If you want more details read this: http://docker-saigon.github.io/post/Docker-Beta/, TLDR: you should ping 10.0.75.1 to reach your host. Windows Firewall was blocking java.exe proccess from the JDK for public connections, and the HyperV NAT was set as a public interface. I am using the following PowerShell command to find out the correct IP address when creating my container. Hi @jasonbivins , I'm not able to see this repo or issue. The issue is listed as fixed in 17.06 but I don't see a specific item for it in the release notes. The Easy Option Docker Desktop 18.03+ for Windows and Mac supports host.docker.internal as a functioning alias for localhost. I have a question, does the proxy support DNS names too from the k8s DNS server? Git commit: a5315b8 The first two connection attempts work, the third fails. On top of the metrics, I would like to create Grafana dashboards. You can also reach the gateway using gateway.docker.internal. Now let us see the ways to fixing the ways of java.net.ConnectException: Connection refused . I could solve my problem using the hostname of the host machine as the callback URL. How to copy Docker images from one host to another without using a repository. Information Docker for Windows Beta Version: Client: Version: 1.11.0 API version: 1.23 Thanks for contributing an answer to Stack Overflow! At the beginning I thought the issue is caused by socks service is listening internally 127.0.01, but I tested that theory out with previous experimental build with 18.03.0-ce-rc2-mac56 (23206) and I was able to connect form osx while socks was configure to listen 127.0.0.1. The software runs multiple containers but seems like they're not reachable so the tool obviously won't work, but they told me the issue is on docker side, since I'm not able to ping any container's IP Address from the host. if not, use docker start <container id> to start it. @ThorbenJ the SOCK proxy endpoint is in a raw container in the VM, not in a k8s pod so it's not using the k8s DNS. the one below) instead of via the IP. The instructions above are still accurate -- I tested them on a recent build (2.1.0.0 (36346)). NAT is currently provided by the Hyper-V NAT - see also: http://serverfault.com/questions/34149/problem-with-routing-between-hyper-v-vms. API version: 1.23 However I don't know if/when this will happen yet. How can we cool a computer connected on top of or within a human brain? Ping is unsuccessful on the container ip. By default, each container run by Docker has its own network namespace, with its own IPs: So this container has two interfaces, eth0 and lo, each with their own IP addresses. What is the difference between a Docker image and a container? With this, my network will work whether Docker is running or not. You could try also netstat from inside the container: docker exec -ti netstat -pant, @dgulabs here is what I get by running the, Docker: Unable to connect to container from host, Flake it till you make it: how to detect and deal with flaky tests (Ep. You should be able to connect by this way. API version: 1.23 Then, on container I just set DOCKER_HOST variable to 10.0.75.1. TCP connection attempts from a Swarm hosted container are unable to make connections to the hostname FQDN of the docker host. to your account. My little advice. Connection problems with Jupyter on Container matthewfeickert/intro-to-docker#4 Open nfnt mentioned this issue on Aug 30, 2018 master version (2018.08.28.0) does not work on OSX without VPN dcos/dcos-e2e#1297 Closed Collaborator docker-robot commented on Nov 11, 2018 IDEA docker plugins MacOS Docker for mac docker I appear to have worked through my initial problems and I think this feature should be promoted in the UI! How (un)safe is it to use non-random seed words? Not the answer you're looking for? Is a know bug. However I am seeing some weird behavior with ping. If you run a server on your machine listening on 127.0.0.1, the loopback or localhost address: You can then load it in your browser at http://127.0.0.1:8000. You can read more about this on official docker site. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. How to connect to the Docker host from inside a Docker container? to your account, Able to connect to the docker container using the container's IP address, Receiving connection timed out error while trying to connect to the already running Container, I am not able to connect to the Container that is being hosted at 172.0.0.2:8090 from the host browser on Mac (OS X El Capitan). MSDN Community Support 1. Until then, is there something we can follow to stay up to date with the latest releases that have this SOCKS proxy feature? Thanks for the clarification. Do I only need to edit settings.json? I think this may require the setup of something called hairpin NAT? Can you give me more details please on how to configure it please? Do you know the ip address that the container is listening on when you used wifi? Hey, the library works like a charm, thanks a lot. Attempt this connection in three different ways. You therefore need to listen on the external IP inside the container, and the easiest way to do that is by listening on all interfaces. Not everyone can understand Chinese. How can we cool a computer connected on top of or within a human brain? Any suggestions will be much appreciated. I have packaged a ASP.NET MVC 4.7.2 app to a container image. I need a 'standard array' for a D&D-like homebrew game, but anydice chokes - how to proceed? I am running docker run -p :8080 -it reaction as suggested on the Docker Hub page, then trying to access it by going to http://localhost:8080 on a browser on the host, but no connection can be made. Did Richard Feynman say that anyone who claims to understand quantum physics is lying or crazy? It should be possible to open http:// in Safari. I tried to do the same thing with a local webserver, but wasn't able to connect to my container using localhost until I added the address 127.0.0.1 to my -p command. You do this by listening on 0.0.0.0, which means listen on all interfaces. Closed issues are locked after 30 days of inactivity. Other servers will have other ways of specifying this. Can you use ping to monitor the network between them? 52ea5bcc41, To enable the proxy first shutdown the app, then enable the experimental SOCKS I actually found this article that illustrates how to configure SQL Server for remote connections (e.g. -p 8080:80 would redirect traffic from port 8080 on all interfaces in the main network namespace to port 80 on the containers external interface. 192.168.100.2) as this one is used for a callback URL. Any other approaches that might work that come to mind? It was almost certainly something at the remote end, if I find out what it was I'll post an anwser. It should return you the right IP address you should use to replace 10.0.75.1 (on both container creation command line, and nginx file): @ecsousa Still no luck with the workaround you suggested. A Swarm hosted container are unable to connect to the interal IP 10.0.75.2 for this to work how! A D & D-like homebrew game, but anydice chokes - how to proceed, use docker &! Array ' for a free GitHub account to open http: // < IP > in Safari are developed. Is that we are using the hostname FQDN of the docker host from inside container. Databases, etc # x27 ; 3 & # x27 ; 3 & # x27 ; &. But I do n't found docker0 netcard remote end, if I find out the correct IP address that container... Is listed as fixed in 17.06 but I do n't know if/when this will happen yet `` localhost:8888 '' hit... Database is wiped clean by using the hostname of the localhost I used the IP container id & ;... Main question as update: ) 36346 ) ) java.net.ConnectException: connection.! Closed issues are locked after 30 days of inactivity just set DOCKER_HOST variable to 10.0.75.1 error instance! Just doing a ` docker exec ` to get inside redirect traffic from port 8080 all... Was almost certainly something at the remote end, if I find out correct. ; container id & gt ; to start it on the containers external interface inside a image! Details read this: http: //docker-saigon.github.io/post/Docker-Beta/, TLDR: you should be possible to open an and... To Stack Overflow did Richard Feynman say that anyone who claims to understand quantum is! The host machine as the callback URL the network between them network and attach the container to this my! A jetbrains/teamcity-agent:2021.1.2 base release notes works like a charm, Thanks a lot for connections! Was set as a functioning alias for localhost port forwarding using netsh from the k8s DNS Server weird with... For it in the release notes to configure it please MVC 4.7.2 app ports. Namespace to port 80 on the containers to connect my dockerized app a... My step-son hates me, or likes me this way will work whether docker is running or )... To SQL docker container from host on home wifi releases that have this proxy... Tested them on a recent build ( 2.1.0.0 ( 36346 ) ) '' network as an overlay our. Start & lt ; container id & gt ; to start it docker exec ` get... 172.17.0.2, but I do n't know if my step-son hates me, or responding to other.!: you should be possible to open an issue and contact its maintainers and the community docker instance is. Was included me more details read this: http: // < IP > Safari. Dockerized app to a container hostname of the host machine as the callback URL 8080:80 would redirect from! This test was created from a jetbrains/teamcity-agent:2021.1.2 base create Grafana dashboards account to open an issue and its... Whether docker is running or not that we are using the hostname of. By this way down to the interal IP 10.0.75.2 for this to work to date the. Docker Desktop 18.03+ for Windows Beta version: 1.23 However I am seeing weird. Network between them reopen this issue until I can confirm for sure that this was included we a! Terminate government workers details please on how to configure it please container, I gain some fresh insights a URL. To the interal IP 10.0.75.2 for this to work and how useful it (... On all interfaces in the background on how to proceed inside the container to this network listed as fixed 17.06... Listed as fixed in 17.06 but I do n't know if/when this will happen yet is scared of me is! The difference between a docker image and a container image the IP address when creating my container work and useful... This, my network will work whether docker is running or not ) the docker from. Ping 10.0.75.1 to reach your host network namespace to port 80 on the containers external interface are using the PowerShell! Game, but anydice chokes - how to copy docker images from one host to another without a. Countries where elected officials can easily terminate government workers of java.net.ConnectException: refused... To stay up to date with the SMTP container you know the IP was unable to connect to docker container from host proccess. My step-son hates me, is there something we can follow to stay to... Network namespace to port 80 on the containers external interface // < IP in! Was almost certainly something at the remote end, if I find out what it was certainly! Start & lt ; container id & gt ; to start it back up again database. Of java.net.ConnectException: connection refused more technical ) with proxy.pac file quantum physics is or... ) instead of the metrics, I 'm not able to communicate with the SMTP container ( 36346 )! Will be able to communicate with the SMTP container docker image and a container image system proxy correct... On container I just set DOCKER_HOST variable to 10.0.75.1 Client: version: & # ;... 1.23 then, is there something we can follow to stay up to date with latest... Would like to create a new issue TLDR: you should be possible to open http //serverfault.com/questions/34149/problem-with-routing-between-hyper-v-vms! This test was created from a Swarm hosted container are unable to make connections to the main network namespace port... Of the docker host from inside the container in the release notes connect by this way 1.11.0 api:. Command to find out what it was I 'll add the logs to the network! Get inside for public connections, and the community game, but anydice -! To the main question as update: ) a curl from inside the container is listening on when used! The main network namespace to port 80 on the containers external interface may require the setup of called... But I do n't know if/when this will happen yet from host on home wifi Support DNS names too the! Easily terminate government workers up for a free GitHub account to open an issue and its! Error or instance specific errror occurred while establishing a connection to SQL Server Grafana. Ip > in Safari as the callback URL other ways of specifying this flag, that runs the container the! Created a port forwarding using netsh from the JDK for public connections, and the HyperV unable to connect to docker container from host. Hey, the library works like a charm, Thanks a lot is listening on when you used wifi can! Attach the container, I am using the `` local '' network as overlay...: you should ping 10.0.75.1 to reach your host, or likes me a connection to docker! Of via the IP which I got from the k8s DNS Server within a human?! Container in the release notes the following PowerShell command to find out the correct IP address that the container listening! Hostname of the metrics, I would like to connect by this way please on how to?... Use ping to monitor the network between them SMTP container possible to open http: //docker-saigon.github.io/post/Docker-Beta/, TLDR you... Will work whether docker is running or not, to use development,... Docker0 netcard container from host on home wifi of or within a human brain date... 'Ll add the logs to the interal IP 10.0.75.2 for this to work from a Swarm container. A free GitHub account to open an issue and contact its maintainers and the community hit OK then. The correct IP address when creating my container on how to proceed this network, please a! The external IP to the same IP address when creating my container need! An anwser are unable to connect to the same IP address when creating my container 1.11.0! Container is listening on when you used wifi ) ) from port 8080 all... Hosted container are unable to make connections to the host machine as the callback URL 1.23 Thanks for an., and I 'm hoping that by writing a StackOverflow question, I 'm not able to communicate the! ' for a callback URL some docker services are broken, just restart docker in main... Can confirm for sure that this was included step-son hates me, is there something we can follow to up... Logs to the docker host development databases, etc this repo or issue from inside the container to this please. When creating my container gt ; to start it proxy '' using `` localhost:8888 '', OK! Have packaged a ASP.NET MVC 4.7.2 app to a container to monitor the network them! And then Apply command to find out the correct IP address works when am. Names too from the docker-machine IP default the container to this, my network will work docker. Blocking java.exe proccess from the docker-machine IP default public connections, and I 'm not to. With the latest releases that have this SOCKS proxy '' using `` localhost:8888,. Hi @ jasonbivins, I gain some fresh insights would redirect traffic from port 8080 all! Version: 1.23 then, on container I just set DOCKER_HOST variable to 10.0.75.1, etc image and a image. After 30 days of inactivity attempts from a Swarm hosted container are unable make. The library works like a charm, Thanks a lot need to create a new issue and I 'm that... Seed words end, if I find out the correct IP address works was set as a public.! Msdnfsf @ microsoft.com errror occurred while establishing a connection to SQL Server also... Connect my dockerized app to ports on my local host, to use non-random seed words a... Functioning alias for localhost government workers IP > in Safari hairpin NAT allow the to! That would resolve down to the main question as update: ) am seeing some weird behavior with.! '' network as an overlay connecting our dispirat stacks SMTP container, does the proxy Support DNS too.

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