Projects in Docker

Learn how Docker creates and manages containers, and why containers are faster and more portable than traditional virtual machines, using the basic commands and tools introduced in this course.

Download the stable Docker for Windows installer and run it on Windows 10. Enable virtualization, Hyper-V, and containers, ensure eight gigabytes of memory, and review community versus enterprise editions.

Install docker on Mac by downloading from docker dot com and launching the app after dragging it to Applications. On Linux, enable apt, add the docker repository, and install docker.

Explore Docker basics by pulling Ubuntu images from Docker Hub, creating containers with docker run, and managing containers and images using commands like docker ps, exec, stop, and rm.

Create a lightweight docker image using alpine base, install lighttpd, configure and serve a simple index file, then run a container with port 80 exposure to host.

Deploy a microservices-based mean stack blog with docker containers, decoupled back end, database, and front end served by a reverse proxy.

Set up three docker directories for db, app, and web; build the database image from the mongo:3 base, and minimize layers by combining apt-get update and upgrade in one run.

Build a node-based application image for a dockerized api server by writing a dockerfile, installing dependencies with npm, exposing port 3000, and wiring express, body-parser, and mongoose.

Builds the final web server image using nginx, installs openssl, creates a htpasswd with a build-arg, configures nginx with a secure site and a /api proxy to a node backend.

Launch three containers for the database, the app, and the web server, exposing ports 80 and 3000. Route API calls through nginx to the backend and serve content, illustrating microservices.

Examine the drawbacks of a docker-based microservices architecture, including missing authentication for the database, in-container data storage, hard-coded network addresses, and how volumes and local secrets improve persistence and security.

Learn how a container orchestration system ensures high availability by managing micro services, scaling out with multiple containers, and maintaining the desired state across manager and worker nodes.

initialize a docker swarm and create a one-container service on port 3000, then scale replicas while the swarm’s registry and load balancer ensure high availability and automatic recovery.

Deploy a blog app on Docker Swarm by creating an overlay network, naming services (db_server, app_server, web_server), enabling replicas for high availability, and ensuring service name DNS resolves across containers.

Learn to automate swarm deployments with docker stack by writing a YAML configuration that defines services, networks, and volumes, then deploy and manage replicas with restart policies.

Learn to deploy a private service registry in a docker swarm, scatter containers across multiple hosts, and bind the registry to a node with an overlay network and port 5000.

Learn how to distribute services on multiple Docker Swarm nodes by using a private service registry, deploying replicated services, and achieving high availability with dynamic rebalancing.

Explores how Docker uses union file systems and copy-on-write to manage images, and shows how to persist data across nodes with volumes, bind mounts, and named volumes.

Create a dedicated NFS share on a separate server and mount it into a Mongo container using a Docker named volume with an NFS driver and no root squash.

build a stateful swarm with Docker stack by mounting a shared NFS-backed named volume across manager and worker nodes, ensuring data persistence and high availability.

Learn how configuration management automates infrastructure for hosting containers, using Ansible to describe the desired state, install software, and manage swarm orchestration with YAML playbooks.

Install ansible on mac with brew, verify the installation, and configure ubuntu prerequisites: python, ssh, passwordless login, and passwordless sudo for unattended playbooks.

Write an Ansible playbook to configure a swarm, defining hosts and inventory, using become for root access, and setting variables for images, services, and volumes.

Explore writing an Ansible playbook to install docker prerequisites and the docker package with apt and pip. See how task naming and idempotence with inventory-driven execution enable repeatable deployments.

Build three docker images for database, app, and web server using Ansible's docker_image module, upload files with synchronize, and ensure idempotent execution before starting containers in the next lecture.

Learn to create a Docker swarm and its network using Ansible. Handle idempotence with conditionals, register outputs, and command module strategies.

This lecture demonstrates running Docker Swarm services with containers and mounted volumes, configuring db, app, and web services, exposing port 80, and restoring the desired state using Ansible.

Explore Docker basics, building images and containers, and deploying a blog app using MongoDB and Node.js images. Learn swarm clustering, resiliency, and Ansible-driven automation.