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Questions tagged [docker-swarm]

The tag has no usage guidance.

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Docker Container Port Mapping

We have a docker container with IIS with the following environment Docker, Docker-Swarm, Windows Server 2019, Virtual Box and Portainer. When the containers are deployed every container with the ...
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Hadoop - resource manager doesn't start on docker container with stack deploy

Hadoop resourcemanger can't connect to namenode. I've deployed hadoop to docker container with docker stack deploy. But when I run containers with docker-compose up it works fine. I want to manage ...
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Labelling each container differently with the same image in docker swarm

I have a docker swarm and I want to run a particular container on all the swarm nodes. I would like to have a different label for the container running on each of the swarm node. How can I do it.
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Docker not logging out anything from spring boot app

So I'm running a spring boot app in a docker swarm on Amazon (using Docker for AWS) and I'm having this persistent issue where I can't get any logs from the app. Docker for AWS is set up so that the ...
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IPv6 does not work in Docker swarm?

I have an Ubuntu server 16.04 LTS running both IPv4 and IPv6 (dual-stack). This server is also running Docker. However, I have problems whenever I try to access the containers in the swarm, but only ...
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1answer
387 views

When using docker swarm node in the overlay network I lost connectivity if connecting from another host

Created my service using the following command with docker: docker service create --mount type=bind,src=/tmp/postgres,dst=/var/lib/postgresql/data --name dev_db --network mynetwork -p 5432:5432 -d ...
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1answer
2k views

How do I properly resolve the IP of another container in a Docker Swarm? (DNS)

I'm playing with deploying services in a Docker Swarm. I'm having trouble letting a container consistently connect to a container on a different node. Let's say I'm building a GlusterFS pool; I need ...
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173 views

Network placement of Docker managers and workers

I have a classic segmented network (a DMZ network and an internal LAN network with a router/firewall in between) and a Docker Swarm cluster compound by 3 nodes, all managers (Dm). The way we have ...
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Docker swarm containers networking and placement

I am using a Docker Swarm cluster and I am trying to work out the best way of interconnecting and placing some containers implementing my application. The architecture is still pretty much "...
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43 views

MacOS docker: How to change docker image location through cmd line?

In mac docker gui allow you to move docker image location by going through Preferences>disk>move disk image However, I would like to do it using a script in commandline. Therefore, I am ...
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1answer
130 views

Invalid AWS role or insufficient permissions

I followed the Link Amazon Web Services to Docker Cloud article step-by-step and successfully generated a role ARN, but when I enter the ARN to link my docker cloud account, I'm getting the following ...
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1answer
676 views

docker swarm with heterogenous nodes: limit by available resources?

I have a small docker swarm running in my office: one 40-core (128GB RAM) and two 8-core (16GB RAM each). When I deploy a service across the swarm, the jobs are running, but they are spread evenly ...
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How to combine multiple applications with Docker?

Given the following setup of applications: App A: Docker-compose with a PostgreSQL image and a custom app image which uses that PostgreSQL image App B: Docker-compose with a PostgreSQL image and a ...