Docker - SWARM - Hands-on - DevOps

Master docker compose in depth, using YAML to orchestrate a voting app stack with Redis, PostgreSQL, a Python voting frontend, .NET worker, and Node.js results, plus networks and version evolution.

Explore the example voting app architecture, including a Python Flask voting service, Redis messaging, a .NET worker, and a Node.js result UI with Postgres, deployed via docker run.

Learn to deploy a multi-service voting application with docker compose, linking redis and postgres, configuring ports 5000 and 5001, and launching containers with the compose up command.

Upgrade the docker compose file to version 3, use a shared network for all services, and fix postgres with POSTGRES_PASSWORD; deploy with docker compose up.

Explore hands-on coding exercises for docker commands, docker files, and docker compose, practice building images, writing docker files, and validating solutions in the browser.

Access real hands-on labs hosted on kodekloud in your browser. Udemy students gain free access through the course checkout link; create a kodekloud account and mark labs complete.

Explore Docker Swarm in depth, including Raft consensus, quorum, and manager nodes. Learn how to achieve high availability, load balancing, and fault tolerance across a swarm.

Demonstrates creating a docker swarm, adding master and worker nodes, using join tokens to authenticate, and handling failures with quorum considerations.

Explore Docker services in Docker Swarm orchestration, creating replicated and global services, how the manager schedules tasks, distributes replicas across workers, and updates service replicas.

Show how to create and update docker services, scale replicas, publish ports, and withstand node failures by distributing tasks across master and worker nodes in a swarm.

Explore overlay networks in Docker Swarm, the ingress routing mesh, and how container names and the built-in DNS enable reliable inter-container communication.

Explore Docker stacks in a swarm, converting service commands into a Docker Compose file, and deploying the full application with Docker stack deploy.

Deploy a docker stack from a version 3 compose file, run services such as redis, database, vote, worker, and result, and scale the voting app to two replicas.

Use a web-based docker swarm visualizer to view services and containers across master and worker nodes. Run the visualizer image from docker hub and expose port 8080 to access UI.

Explain how continuous integration and delivery use a Docker-based ci/cd pipeline to automatically build, test, package, and deploy code from multiple developers with Jenkins and Robot Framework.

Discover how Docker integrates with CI/CD pipelines, from Dockerfiles and image builds to tests, pushes to registries, and production deployment on Kubernetes or ECS.

Learn how to use Docker Registry for private storage, push images to Docker Hub or internal registries, run a registry container on port 5000, and integrate with CI/CD pipelines.

Deploy a local Docker registry server using the official registry image, push and pull images to a private registry, and browse them with a web frontend in Play with Docker.

Docker Cloud provisions hosts on cloud providers, sets up docker swarm, and runs containers per a stack file, while integrating with GitHub/Bitbucket for automated builds to Docker Hub.

Deploy the example voting app on Docker Cloud by integrating AWS, creating a node cluster, and deploying a stack file with postgres, redis, voting, and result services with endpoints.

Explore a high-level introduction to Kubernetes, its architecture, pods, deployments, and services, comparing it with Docker Swarm, with a demo on Google Cloud Platform.

Deploy and manage a demo voting app on Google Cloud's Kubernetes Engine, creating pods and services, configuring Redis and Postgres, and exposing the app via a load balancer.

Explore setting up a Kubernetes cluster on play-with-k8s.com, deploy voting app pods and services with kubectl, and verify the app runs with integrated services.

Explore advanced Docker topics, including architecture, Docker Compose, Docker Swarm, services, and stacks, plus overlay and ingress networking, and demonstrate CI/CD integration with Docker.