docker stack tutorial
We have to pass a docker-compose.yaml file as an argument to the docker stack deploy command using the compose-file or -c option. Continuing the same Nginx example, imagine we told Docker that those containers should expose port 80. I will add one other quick note though. app.run(host="0.0.0.0", port=8000, debug=True), FROM python:3.10.0a1-alpine If your replicas are not at full capacity yet, wait a moment and check again. Every swarm starts out with one manager node designated as the leader. When a node joins the swarm, it uses a token that not only verifies itself but also verifies it is joining the swarm you think it is. 2. Explanation: We can see that the service is replicated and able to access the localhost successfully. Create a file called app.py in the project directory and paste this in: Create a file called requirements.txt and paste these two lines in: Create a file called Dockerfile and paste this in: Create a file called docker-compose.yml and paste this in: The image for the web app is built using the Dockerfile defined above. PWD has actually automatically detected that we have a service running on that port! We can look at our running services by running the docker service ls command, which should show something like this: Voila! Well thankfully, thats where we are today. Go ahead and create a file on your first node called docker-compose.yml and populate it with the configuration above.You can do that easily with echo "
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