Docker includes swarm mode for natively managing a cluster of Docker Engines called a swarm. You can use the Docker CLI to create a swarm, deploy application services to a swarm, and manage swarm. Docker: Now Powered by Swarm and Kubernetes. That same week, when I and the rest of the Docker Captains got to sit down with some of the lead engineers, product managers and Solomon himself (Docker founder), one thing was made clear. Current Docker EE customers were quite happy with Swarm, and weren't looking for the 'exit' to Kubernetes.
Part1 shows how to create a username/repository:tag but it doesn’t say what the:tag should be. Should it always be:tag or should it be my version #. Or something else? I am working through the of the docker get started tutorial.
Everything was working great till I needed to test my swarm with curl localhost. The hostname never changes, which makes me believe that the swarm is not working. I run all the commands shown and get all the expected results except this.
Part 4 Again the swarm issue persists. I have created the vms but cannot access them from the url or with curl. Am I just missing something?
There is a about something here but it doesn’t explain how to do this, do I even need to? Running on Mac Sierra V 10.12.5. I mean its exactly the same as the tutorial. Docker-compose.yml iversion: '3' services: web: image: mjwrazor/repository:4 deploy: replicas: 5 resources: limits: cpus: '0.1' memory: 50M restartpolicy: condition: on-failure ports: - '80:80' networks: - webnet networks: webnet: Dockerfile `# Use an official Python runtime as a base image FROM python:2.7-slim # Set the working directory to /app WORKDIR /app # Copy the current directory contents into the container at /app ADD. /app # Install any needed packages specified in requirements.txt RUN pip install -r requirements.txt # Make port 80 available to the world outside this container EXPOSE 80 # Define environment variable ENV NAME World # Run app.py when the container launches CMD 'python', 'app.py'` There is no extension on the Dockerfile right? I ran the commands in exact sequence given in the tutorial. I went back to do it again.
When I make changes do I need to bump the tag an push every time? Or can I just make changes and only create a new tag when I want to? Is exact copy of the tutorial code.
When I try docker swarm init after restarting I get Error response from daemon: This node is already part of a swarm. Use 'docker swarm l join another one. Im also having problems. It was working at part 2, but the part 3 which introduces docker swarm doesnt work.
My docker-compose.yml and Dockerfile are the same as the tutorial. Im getting the usual connected refused at localhost:4000 and localhost:80. I am using ubuntu 16.04.
I have apache installed so it was using port 80, but i put down the apache service and the swarm still doenst work. The services are up though, because using comands like docker container ls, docker service ls, and docker inspect respond just like the tutorial. So i think its a port mapping issue. Hi there, I’m having the same issue.
Here are running machines and vm1 is the swarm manager: ubuntu1810@ubuntu:$ docker-machine ls NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS myvm1 - virtualbox Running tcp://192.168.99.100:2376 v18.09.0 myvm2 - virtualbox Running tcp://192.168.99.102:2376 v18.09.0 myvm3 - virtualbox Running tcp://192.168.99.101:2376 v18.09.0 When I open 192.168.99.100 on Firefox, it displays this: Seems weird issue Edit1: I’ve just found the solution right here:. Seems that was due to version of boot2docker.iso Powered by, best viewed with JavaScript enabled.