I have installed a docker image "gitlab/gitlab-ce" on windows 10 and I try to run with following command.
docker run --detach --hostname https://localhost/ --publish 40443:80 --name GitLab --restart always --volume d:\gitlab\config:/etc/gitlab --volume d:\gitlab\logs:/var/log/gitlab --volume d:\gitlab\data:/var/opt/gitlab gitlab/gitlab-ce:latest
but when it doesn't accessible in browser.
"This site can’t be reached.
localhost unexpectedly closed the connection."
I don't known what is wrong here in GitLab document the host name is "gitlab.example.com" and I don't known what is domain refer to.
You should use your own ip instead of "localhost" word.Because localhost IP is different for the docker.So you should check your ip address with ipconfig cmd command.And set the docker run command with your ip address.
I have write step by step at this comment : https://stackoverflow.com/a/66357935/11040700
Your docker container is exposed on :40443 port
Ref.: https://docs.docker.com/config/containers/container-networking/
P.S. hostname should be without https://
Related
I have a container running nifi (--name nifi) exposing port 8080 and another container running nifi registry (--name nifireg) exposing port 10808. I can get to both UI's, and I am able to connect nifi to the registry in the registry services by using the registry container's IP (172.17.0.5). These containers are also on a docker network called nifi-net. My issue is that the registry client is unable to talk to the registry when using the container name.
From the nifi I can ping by container IP as well as by name (ping nifireg), so there is some level of connectivity. But if I change the registry client to point to http://nifireg:180880 or even http://nifi-net.nifireg:18080 it clocks for a while and then eventually returns this error:
Unable to obtain listing of buckets: java.net.ConnectException: Connection refused (Connection refused)
What needs to be done to allow nifi to connect to the nifi registry using the container name?
EDIT: Here is how I set everything up:
docker run -d --name nifi -p 8080:8080 apache/nifi
docker run -d --name nifireg -p 18080:18080 apache/nifi-registry
I added the netorking after the fact, but that shouldn't be an issue.
docker network create nifi-net
docker network connect nifi-net nifi
docker network connect nifi-net nifireg
I don't understand why this solved the problem, but destroying the containers and recreating them with the --net nifi-net option at spin-up solved the problem.
docker run -d --name nifi --net nifi-net -p 8080:8080 apache/nifi
docker run -d --name nifireg --net nifi-net -p 18080:18080 apache/nifi-registry
The docs state that you can add them to a network after the fact, and I am able to ping from one container to the other using the name. I guess it's just a lesson that I need to use docker networking more.
I would suggest using docker-compose to manage the deployment since you can define the network once in docker-compose.yaml and not have to worry about it agian.
Plus it lets you learn about docker networking :P
I'm running a Java web application on a Docker cluster running those commands:
PS C:\Users\Marco\test_workspace> docker run -v test_web_application.war:/usr/local/tomcat/webapps/TestWebApplication.war -it -p 8080:8080 --network "host" -d Tomcat
The actual output confirms that the container is running:
At this point i want to access to the container through it's IP address from my host and i'm using the command inspect to identify the IP:
But, as the screenshot shows, i don't see any IP assigned.
Thus, my questions are:
Why the command --network "host" to assign an IP address shared with the host didn't worked ?
Finally, how can i access to my web application from the host ?
Command option --network="host" isn't supported for Docker for Windows (more information: https://docs.docker.com/network/host/).
You can access your application on localhost:8080 with launch option -p 8080:8080.
I'm following the following tutorial on how to start a basic nginx server in a docker container. However, the example's nginx docker container runs on localhost (0.0.0.0) as shown here:
Meanwhile, when I run it it for some reason it runs on the IP 10.0.75.2:
Is there any particular reason why this is happening? And is there any way to get it to run on localhost like in the example?
Edit: I tried using --net=host but had no results:
The default network is bridged. The 0.0.0.0:49166->443 shows a port mapping of exposed ports in the container to high level ports on your host because of the -P option. You can manually map specific ports by changing that flag to something like -p 8080:80 -p 443:443 to have port 8080 and 443 on your host map into the container.
You can also change the default network to be your host network as you've requested. This removes some of the isolation and protections provided by the container, and limits your ability to configure integrations between containers, which is why it is not the default option. That syntax would be:
docker run --name nginx1 --net=host -d nginx
Edit: from your comments and a reread I see you're also asking about where the 10.0.75.2 ip address comes from. This is based on how you launch the docker daemon. That IP binding is assigned when you pass the --ip flag to the daemon documentation here. If you're running docker in a vm with docker-machine, I'd expect this to be the IP of your vm.
A good turnaround is to set using -p flag (--publish short)
docker run -d -p 3000:80 --name <your_image_name> nginx:<version_tag>
I am trying to set up gitlab inside a docker container, where my docker container is running on a remote CentOS 7 server. Apparently, gitlab is running just fine because I can access the container and perform wget and also from the server. However, I cannot do the wget from my local machine. I would like to configure it so that I can access from anywhere, but I have no idea how to do this configuration or what it's missing.
I created the docker container like this:
sudo docker run --detach --hostname gitlab.example.com --publish 18080:80 --publish 12222:22 --publish 1443:443 --name gitlab --restart always --volume /srv/gitlab/config:/etc/gitlab --volume /srv/gitlab/logs:/var/log/gitlab --volume /srv/gitlab/data:/var/opt/gitlab gitlab/gitlab-ce:latest
just as the official documentation http://doc.gitlab.com/omnibus/docker/#after-starting-a-container was saying.
I would like to access via http://public_ip:18080. How can I achieve that?
I already tried opening port 18080 in CentOS:
$ sudo firewall-cmd --zone=public --add-port=18080/tcp --permanent
$ sudo firewall-cmd --reload
but it's not working (and I don't really know what I'm doing here).
The container is running and the command
docker ps -a
shows this:
88510679f781 gitlab/gitlab-ce:latest "/assets/wrapper" About an hour ago Up About an hour 0.0.0.0:12222->22/tcp, 0.0.0.0:18080->80/tcp, 0.0.0.0:1443->443/tcp gitlab
I can access the webpage from inside the server and from different machines inside the same cluster using the private ip of my server and port 18080. However, I cannot access with the preconfigured public ip of the server.
EDIT:
As pointed out in the replies, the issue was that the firewall was not letting us listen on every port. Changing the mapping to an available port made the trick
I have a CentOS docker container on a CentOS docker host. When I use this command to run the docker image docker run -d --net=host -p 8777:8777 ceilometer:1.x the docker container get host's IP but doesn't have ports assigned to it.
If I run the same command without "--net=host" docker run -d -p 8777:8777 ceilometer:1.x docker exposes the ports but with a different IP. The docker version is 1.10.1. I want the docker container to have the same IP as the host with ports exposed. I also have mentioned in the Dockerfile the instruction EXPOSE 8777 but with no use when "--net=host" is mentioned in the docker run command.
I was confused by this answer. Apparently my docker image should be reachable on port 8080. But it wasn't. Then I read
https://docs.docker.com/network/host/
To quote
The host networking driver only works on Linux hosts, and is not supported on Docker for Mac, Docker for Windows, or Docker EE for Windows Server.
That's rather annoying as I'm on a Mac. The docker command should report an error rather than let me think it was meant to work.
Discussion on why it does not report an error
https://github.com/docker/for-mac/issues/2716
Not sure I'm convinced.
The docker version is 1.10.1. I want the docker container to have same ip as the host with ports exposed.
When you use --net=host it tells the container to use the hosts networking stack. So you can't expose ports to the host, because it is the host (as far as the network stack is concerned).
docker inspect might not show the expose ports, but if you have an application listening on a port, it will be available as if it were running on the host.
On Linux, I have always used --net=host when myapp needed to connect to an another docker container hosting PostgreSQL.
myapp reads an environment variable DATABASE in this example
Like Shane mentions this does not work on MacOS or Windows...
docker run -d -p 127.0.0.1:5432:5432 postgres:latest
So my app can't connect to my other other docker container:
docker run -e DATABASE=127.0.0.1:5432 --net=host myapp
To work around this, you can use host.docker.internal instead of 127.0.0.1 to resolve your hosts IP address.
Therefore, this works
docker run -e DATABASE=host.docker.internal:5432 -d myapp
Hope this saves someone time!