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Questions tagged [docker-swarm]

Docker-swarm is a tool that is able to create a cluster of docker nodes and deploy containers in this cluster.

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Docker Swarm Mesh not working on mixed Win7 / Linux cluster

I've got a mixed Docker Swarm Cluster with Linux machines and Win7 machines running VirtualBox via NAT (bridged option is not allowed). Win7 Win7 | | (port forwarding on 7946tcp/udp, 2377tcp, 4789udp) | …
Frankie
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Nagios Docker Stack Plugin works locally but not remote

I have a plugin to check the services running on docker. I've gone through all of the suggestions from the dozens of posts I have seen here, but I'm still not able to get this to work. The commands all run individually and the script runs as well,…
D.Fitz
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Differentiate docker swarm services by deployment target

I'm in the process of rolling out a High Availability docker swarm setup across multiple data centers, but I have a bit of a high-level question about configuration differentiation. Say I have a single docker service, called worker, and a HA…
Shookit
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how docker handles high availability

Coming from a VMware environment, my through process was that, Multiple Docker machines (swarm), mount the same NFS data stores A container (e.g. Maria dB) is deployed on the Docker swarm If a node in the swarm fails, the service is still running…
aristosv
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Zero Down Time deployment Node.js Docker

I have a React/Node.js application running on a single server using docker-compose. I'm trying to achieve a 0 downtime deployment for my react app. The process right now, does a webpack build (replaces the files in my dist folder) and then docker…
Hirad Roshandel
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A Docker container for each MySQL install

I'm looking to move the databases for my Wordpress sites to their own serve. My question is, for each site, should I run a separate docker container with it's own MySQL install, or is that overkill? In my head it makes sense, but I was hoping…
ok1ha
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How can I expose the docker tcp api to the private container network?

I'd like one of my containers to be able to control docker itself, the way I'm currently doing it is by simply exposing the socket internally, but I don't like this. What I'd really like to do is do it over tcp, authenticated. What I'm not sure of…
xenoterracide
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Monitoring and restarting docker container (docker-compose)

I'm looking into ways of deploying, monitoring and restarting (in cause of failure) my docker containers with docker-compose, but I can't find anything else than using swarm. Not that swarm is bad, but I want to study all the possibilities, pros and…
alexandernst
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Docker Issue - exit status 34

I am facing "exit status 34" while creating docker service. please suggest what is the issue. Docker version : Docker version 17.09.1-ce, build 19e2cf6 Error Log :nsenter: failed to unshare namespaces: Cannot allocate memory container_linux.go:265:…
Mayur Jaiswal
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cant docker swarm on google cloud platform work

I am trying to configure a sample docker swarm to work on my microservices on google cloud platform. The problem is when I finished following the steps in pluralsight, I cant access the service from the specified port I entered. I installed docker…
bexanderDbex
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How do I deal with tags for a docker stack deploy?

I've got a docker compose (3) file which I'm doing a docker stack deploy on. I do this in a Jenkins pipeline. The way I deal with tags is that i set an environment variable API_TAG and the (relevant part of the) corresponding docker compose file…
sbrattla
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Why do we see random delays in traffic between two Docker containers?

I'm looking at a Docker swarm host, which is the only host in our Docker swarm cluster (no, not recommended). Due to a DNS issue in Moby we've sent intra-container traffic via either the host's external IP (192.168.1.50) or via docker_gwbridge…
sbrattla
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Control periodic maintenance of services in a docker swarm

A simplified version of my current setup is as follows: 3 virtual machines: VM1, VM2, VM3 Each of them runs a docker-compose stack that includes a tomcat app and a DB. The DB is recreated nightly from raw data (running a docker container that…
cornuz
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Docker: Virtual machine as worker with its host as manager in swarm

I'm having troubles to find which advertise address the manager should use to work with the following setup: The problem is that if I use the default options of docker swarm init on the host, I can't get my docker machine to connect to this swarm…
Alexandre Germain
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Docker Swarm Failover

I have an application that has 2 containers: a database and the middleware. I would like to use docker-compose to deploy this application to a docker swarm. Each container in my application depends on a 3rd-party license which applies per processor.…
Stuporman
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