In the previous chapter, we created a basic scalable GitLab architecture using Terraform and Ansible. In this chapter, we will continue with the same structure, but we will change some things and create even more resiliency. One of the weak points of the architecture we first designed was that the frontend servers had more than one GitLab component installed, which could prove to be a problem if one component breaks down. We will run the Sidekiq component on another server to mitigate this risk. Another weakness was the shared filesystem. Network File System (NFS) is known to have some performance and file-locking problems; GitLab has developed Gitaly as a replacement, and we will install it in this chapter. Another issue is that there was no monitoring available in the basic scalable architecture. We will install that in this chapter as well.
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Mastering GitLab 12
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Mastering GitLab 12
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Overview of this book
GitLab is an open source repository management and version control toolkit with functions for enterprises and personal software projects. It offers configurability options, extensions, and APIs that make it an ideal tool for enterprises to manage the software development life cycle.
This book begins by explaining GitLab options and the components of the GitLab architecture. You will learn how to install and set up GitLab on-premises and in the cloud, along with understanding how to migrate code bases from different systems, such as GitHub, Concurrent Versions System, Team Foundation Version Control, and Subversion. Later chapters will help you implement DevOps culture by introducing the workflow management tools in GitLab and continuous integration/continuous deployment (CI/CD). In addition to this, the book will guide you through installing GitLab on a range of cloud platforms, monitoring with Prometheus, and deploying an environment with GitLab. You'll also focus on the GitLab CI component to assist you with creating development pipelines and jobs, along with helping you set up GitLab runners for your own project. Finally, you will be able to choose a high availability setup that fits your needs and helps you monitor and act on results obtained after testing.
By the end of this book, you will have gained the expertise you need to use GitLab features effectively, and be able to integrate all phases in the development process.
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Current Title:
Mastering GitLab 12
Table of Contents (30 chapters)
Preface
Free Chapter
Section 1: Install and Set Up GitLab On-Premises or in the Cloud
Introducing the GitLab Architecture
Installing GitLab
Configuring GitLab Using the Web UI
Configuring GitLab from the Terminal
Section 2: Migrating Data from Different Locations
Importing Your Project from GitHub to GitLab
Migrating from CVS
Switching from SVN
Moving Repositories from TFS
Section 3: Implement the GitLab DevOps Workflow
GitLab Vision - the Whole Toolchain in One Application
Create Your Product, Verify, and Package it
The Release and Configure Phase
Monitoring with Prometheus
Integrating GitLab with CI/CD Tools
Section 4: Utilize GitLab CI and CI Runners
Setting Up Your Project for GitLab Continuous Integration
Installing and Configuring GitLab Runners
Using GitLab Runners with Docker or Kubernetes
Autoscaling GitLab CI Runners
Monitoring CI Metrics
Section 5: Scale the Server Infrastructure (High Availability Setup)
Creating a Basic HA Architecture Using Horizontal Scaling
Managing a Hybrid HA Environment
Making Your Environment Fully Distributed
Using Geo to Create Distributed Read-Only Copies of GitLab
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