The DevOps 2.1 Toolkit: Docker Swarm
The DevOps 2.1 Toolkit: Docker Swarm
Building, testing, deploying, and monitoring services inside Docker Swarm clusters
About the Book
The book envelops all aspects of building, testing, deploying, and monitoring services inside Docker Swarm clusters. We'll go through all the tools required for running a cluster. We'll go through the whole process with clusters running locally on a laptop. Once we are confident with the outcome, we'll translate the experience to different hosting providers like AWS, Azure, DigitalOcean, and so on.
The book goes deeper into one of the subjects explored in The DevOps 2.0 Toolkit. It is updated to use the latest and greatest features and techniques introduced in Docker 1.12.
We'll go through many practices and even more tools. While there will be a lot of theory, this is a hands-on book. You won't be able to complete it by reading it in a metro on a way to work. You'll have to read this book while in front of the computer and get your hands dirty.
About the Author
Table of Contents
- Preface
- Overview
- Audience
- About the Author
-
Continuous Integration With Docker Containers
- Defining a Fully Dockerized Manual Continuous Integration Flow
- Running Unit Tests And Building Service Binary
- Building Service Images
- Running Staging Tests
- Pushing Images To The Registry
-
Setting Up And Operating a Swarm Cluster
- Scalability
- Axis Scaling
- Clustering
- Docker Swarm Mode
- Setting Up a Swarm Cluster
- Deploying Services To The Swarm Cluster
- Scaling Services
- Failover
- What Now?
-
Docker Swarm Networking And Reverse Proxy
- Setting Up a Cluster
- Requirements Of Secured And Fault Tolerant Services Running With High Availability
- Running a Database In Isolation
- Running a Service Through a Reverse Proxy
- Creating a Reverse Proxy Service In Charge Of Routing Requests Depending On Their Base URLs
- Load Balancing Requests Across All Instances Of A Service
- What Now?
-
Service Discovery Inside A Swarm Cluster
- What Would Docker Swarm Look Like Without Service Discovery?
- What Does Standalone Docker Swarm Look Like With Service Discovery?
- Service Discovery In The Swarm Cluster
- Do We Need Service Discovery?
- Setting Up Consul As Service Registry Inside a Swarm Cluster
- Problems When Scaling Stateful Instances
- What Now?
-
Continuous Delivery and Deployment With Docker Containers
- Defining The Continuous Delivery Environment
- Setting Up Continuous Delivery Clusters
- Using Node Labels To Constrain Services
- Creating Services
- Walking Through Continuous Delivery Steps
- Reverting A Failed Deployment
- Walking The Extra Mile From Continuous Delivery To Continuous Deployment
- What Now?
-
Automating Continuous Deployment Flow With Jenkins
- Jenkins Architecture
- Production Environment Setup
- Jenkins Service
- Jenkins Failover
- Jenkins Agent
- Creating Services in Production and Production-Like Environments
- Automating Continuous Deployment Flow With Jenkins
- Creating Jenkins Pipeline Jobs
- What Now?
-
Exploring Docker Remote API
- Setting Up The Environment
- Operating Docker Swarm Through The Docker Remote API
- Using Docker Remote API to Automate Proxy Configuration
- Combining The Swarm Listener With The Proxy
- What Now?
-
Using Docker Stack And Compose YAML Files To Deploy Swarm Services
- Swarm Cluster Setup
- Creating Swarm Services Through Docker Stack Commands
- Deploying More Stacks
- To Stack Or Not To Stack
- Cleanup
-
Defining Logging Strategy
- The Need for Centralized Logging
- Setting Up ElasticSearch As The Logging Database
- Setting Up LogStash As The Logs Parser And Forwarder
- Forwarding Logs From All Containers Running Anywhere Inside A Swarm Cluster
- Exploring Logs
- Discussing Other Logging Solutions
- What Now?
-
Collecting Metrics and Monitoring The Cluster
- The Requirements Of a Cluster Monitoring System
- Choosing The Right Database To Store System Metrics
- Creating The Cluster
- Prometheus Metrics
- Exporting System Wide Metrics
- Scraping, Querying, and Visualizing Prometheus Metrics
- Using Grafana To Create Dashboards
- Exploring Docker Swarm & Container Overview Dashboard In Grafana
- Adjusting Services Through Dashboard Metrics
- Monitoring Best Practices
- What Now?
-
Embracing Destruction: Pets vs Cattle
- What Now?
-
Creating And Managing A Docker Swarm Cluster in Amazon Web Services (AWS)
- Installing AWS CLI and Setting Up The Environment Variables
- Setting Up A Swarm Cluster With Docker Machine and AWS CLI
- Setting Up A Swarm Cluster With Docker For AWS
- Automatically Setting Up A Swarm Cluster With Docker For AWS
- Setting Up A Swarm Cluster With Packer And Terraform
- Choosing The Right Tools To Create And Manage Swarm Clusters In AWS
-
Creating And Managing A Docker Swarm Cluster in DigitalOcean
- Setting Up The Environment Variables
- Setting Up A Swarm Cluster With Docker Machine and DigitalOcean API
- Setting Up A Swarm Cluster With Packer And Terraform
- Choosing The Right Tools To Create And Manage Swarm Clusters In DigitalOcean
- To DigitalOcean Or Not To DigitalOcean
-
Creating and Managing Stateful Services In a Swarm Cluster
- Exploring The Twelve-Factor App Methodology
- Setting Up A Swarm Cluster And The Proxy
- Running Stateful Services Without Data Persistence
- Persisting Stateful Services On The Host
- Persisting Stateful Services On A Network File System (NFS)
- Data Volume Orchestration
- Persisting Stateful Services With REX-Ray
- Choosing The Persistence Method For Stateful Services
- Persisting Stateful Services Without Replication
- Persisting Stateful Services With Synchronization And Replication
- Persisting Docker Flow Proxy State
- Persisting Mongo DB State
- What Now?
-
Managing Secrets In Docker Swarm Clusters
- Creating Secrets
- Consuming Secrets
- A Real-World Example of Using Secrets
- Using Secrets With Docker Compose
- Common Ways to Use Secrets
- What Now?
-
Appendix A: Monitor Your GitHub Repos With Docker And Prometheus
- Docker, Prometheus, and Grafana
- Getting Started
- Configuration
- Post Configuration
- Install Dashboard
- Conclusion
- About The Author Of The Appendix
- Farewell
- Contributions
- Is This The End?
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