I have created a docker container which is running on a particular VM in azure (or consider any cloud).That container has a java/nodejs/Csharp application running which needs to access Jenkins server which is running in a company network.
So will i be able to access jenkins from that docker container?If no,please provide a solution on how to access.
You can use --network=host option to let your container run in the same network context as the server you're trying to connect to if it's accessible from the container host.
Of course you should specify a specific network or routes if possible.
https://docs.docker.com/engine/reference/run/#network-settings
Related
i got a service running on another machine on the same network, and i want my docker to access it's API
It's not an option to dockerize this service, so
Is there a way to give this docker full access to the network ? Or at least this machine and it's coresponding port
B"H
I have a docker container on EC2 attempting to connect to DocumentDB. DocuementDB needs to be within the vpc network.
When attempting to connect to DocumentDB in a none host mode the connection fails, but when I (hack and) mount the container to use host network mode it does work. But for simple deployments and replicating my containers it's a problem.
Any idea how to connect to DocumentDB (without ssh tunneling) from within docker hosted on EC2?
If I understand correctly, you are running the container in none networking mode. None means you want to disable all the networking for your container. Most frequent used modes are either bridge or host.
You can also refer the below post which talks how to run docker container in ECS and connect to documentdb.
https://aws.amazon.com/blogs/database/deploy-a-containerized-application-with-amazon-ecs-and-connect-to-amazon-documentdb-securely/
Host : ubuntu
Installed Docker kubernetes on it
After logging into one container, can i run some command to fetch some data from host?
example : helm version from host
The whole point with containers is isolation. An app in a container should in almost all cases not know about the environment it is run in. A microservice should communicate with other services using the network, typically http
Does exist any way to do this:
run one service (container) with main application - server (flask application);
server allows to run another services, them are also flask applications;
but I want to run each new service in separate container ?
For example, I have endpoint /services/{id}/run at the server, each id is some service id. Docker image is the same for all services, each service is running on separate port.
I would like something like this:
request to server - <host>//services/<id>/run -> application at server make some magic command/send message to somewhere -> service with id starts in new container.
I know that at least locally I can use docker-in-docker or simply mount docker socket in container and work with docker inside this container. But I would like to find way to work across multiple machines (each service can run on another machine).
For Kubernetes: I know how create and run pods and deployments, but I can't find how to run new container on command from another container. Can I somehow communicate with k8s from container to run new container?
Generally:
can I run new container from another without docker-in-docker and mounting docker socket;
can I do it with/without Kubernetes?.
Thanks for advance.
I've compiled all of the links that were in the comments under the question. I would advise taking a look into them:
Docker:
StackOverflow control Docker from another container.
The link explaining the security considerations is not working but I've managed to get it with the Webarchive: Don't expose the Docker socket (not even to a container)
Exposing dockerd API
Docker Engine Security
Kubernetes:
Access Clusters Using the Kubernetes API
Kubeflow in the spite of machine learning deployments
we have two machine…one is windows machine and another in Linux machine. My application is running under Docker Container at Linux machine. our data base is running at Windows machine.our application need to get data from windows machine DB.
As we have given proper data source detail like IP, username ,password in our application. it works when we do not use docker container but when we use docker container it do not work.
Can anyone help me out to get this solution that how we can connect outside DB from Docker enabled application as we are totally new guys in term of Docker.
Any help would be much appreciated.
Container's default network is "bridge",you should choose macvlan or host network.
method 1
docker run -d --net host image
this container will share your host IP address and will be able to access your database.
method 2
Use docker network create command to create a macvlan network,refrence here
then create your container by
docker run -d --net YOURNETWORK image
The container will have an IP address which is the same gateway with its host.
There are a lot of issues that could be affecting your container's ability to communicate with your database. In the future you should compose your question with as much detail as possible. To correctly answer this you will, at a minimum, need to include the following details:
Linux distribution name & version
Docker version
Output of docker inspect from the container
Linux firewall configuration
Network configuration
Is your Windows machine running on the same local network / subnet as your Linux machine? If so, please provide information about the subnet, as the default bridge set up by Docker may restrict access to local resources, whereas those over a wide area network would still be accessible.
You can try passing the --network=host option to your docker run command like so: docker run --network=host <image name>. Doing so eliminates the need to specify port mappings in your run command, as they are ignored when using the host's network.
Please edit your question and include the above requested details to get a complete answer.