Need advice about which tool to choose?Ask the StackShare community!
GitLab vs Terraform: What are the differences?
Introduction
GitLab and Terraform are two popular tools used in the software development process. While both serve different purposes, they are essential in managing and deploying applications. In this article, we will explore the key differences between GitLab and Terraform.
Integration with Version Control System: GitLab is primarily a Git repository management tool that allows users to host and manage their source code repositories. It provides a centralized platform for collaboration, version control, and continuous integration/continuous deployment (CI/CD) pipelines. On the other hand, Terraform is an infrastructure as code tool that allows users to define and provision infrastructure resources across various cloud providers. While GitLab integrates with Git and enables version control for code assets, Terraform focuses on managing infrastructure resources.
Scope of Management: GitLab covers the complete lifecycle of software development, including version control management, issue tracking, continuous integration, and continuous deployment. It provides a comprehensive platform for developers to collaborate and manage the entire software development process. On the contrary, Terraform focuses solely on infrastructure as code. It enables users to define infrastructure resources in a declarative language and manage their provisioning and configuration. Terraform does not provide features for code version control or CI/CD pipelines.
Workflow: GitLab follows a collaborative workflow where developers can create branches, manage and review code changes, and merge them into the main codebase. It provides features like merge request and code review to ensure code quality and collaboration among team members. Terraform, on the other hand, follows an infrastructure provisioning workflow. Users define the desired state of infrastructure resources in a Terraform configuration file, and Terraform applies the changes to create, modify, or delete resources accordingly.
Platform Support: GitLab is a web-based application that can be accessed using a web browser from any operating system. It supports Git repositories and can integrate with various cloud providers, enabling deployment to different environments. Terraform, being an infrastructure as code tool, has broader platform support. It can be used on multiple operating systems, including Windows, macOS, and various Linux distributions. Additionally, Terraform supports multiple cloud providers, making it more versatile for managing infrastructure resources.
Level of Abstraction: GitLab operates at a higher level of abstraction, focusing on code management, collaboration, and CI/CD pipelines. It provides a user-friendly interface, project management features, and extensive integration options. On the other hand, Terraform operates at a lower level of abstraction, dealing with the provisioning and configuration of infrastructure resources. It requires users to define infrastructure configurations using a domain-specific language (HCL) or JSON. Terraform provides flexibility and fine-grained control over infrastructure resources.
Extensibility and Customization: GitLab offers a wide range of integrations and extensions that can be used to customize the platform and enhance its functionality. It has an extensive marketplace of plugins and integrations to integrate with other tools and services. Terraform, on the other hand, provides a modular approach to infrastructure management. Users can leverage community-maintained or custom-built modules to extend Terraform's capabilities and manage complex infrastructure setups more efficiently.
In summary, GitLab is a comprehensive platform for code management, collaboration, and CI/CD pipelines, whereas Terraform is an infrastructure as code tool focused on managing infrastructure resources using a declarative approach. GitLab covers the complete software development lifecycle, while Terraform focuses solely on infrastructure provisioning and configuration.
Ok, so first - AWS Copilot is CloudFormation under the hood, but the way it works results in you not thinking about CFN anymore. AWS found the right balance with Copilot - it's insanely simple to setup production-ready multi-account environment with many services inside, with CI/CD out of the box etc etc. It's pretty new, but even now it was enough to launch Transcripto, which uses may be a dozen of different AWS services, all bound together by Copilot.
I first used BitBucket because it had private repo's, and it didn't disappoint me. Also with the smooth integration of Jira, the decision to use BitBucket as a full application maintenance service was as easy as 1, 2, 3.
I honestly love BitBucket, by the looks, by the UI, and the smooth integration with Tower.
Do you review your Pull/Merge Request before assigning Reviewers?
If you work in a team opening a Pull Request (or Merge Request) looks appropriate. However, have you ever thought about opening a Pull/Merge Request when working by yourself? Here's a checklist of things you can review in your own:
- Pick the correct target branch
- Make Drafts explicit
- Name things properly
- Ask help for tools
- Remove the noise
- Fetch necessary data
- Understand Mergeability
- Pass the message
- Add screenshots
- Be found in the future
- Comment inline in your changes
Read the blog post for more detailed explanation for each item :D
What else do you review before asking for code review?
Using an inclusive language is crucial for fostering a diverse culture. Git has changed the naming conventions to be more language-inclusive, and so you should change. Our development tools, like GitHub and GitLab, already supports the change.
SourceLevel deals very nicely with repositories that changed the master branch to a more appropriate word. Besides, you can use the grep linter the look for exclusive terms contained in the source code.
As the inclusive language gap may happen in other aspects of our lives, have you already thought about them?
One of the magic tricks git performs is the ability to rewrite log history. You can do it in many ways, but git rebase -i
is the one I most use. With this command, It’s possible to switch commits order, remove a commit, squash two or more commits, or edit, for instance.
It’s particularly useful to run it before opening a pull request. It allows developers to “clean up” the mess and organize commits before submitting to review. If you follow the practice 3 and 4, then the list of commits should look very similar to a task list. It should reveal the rationale you had, telling the story of how you end up with that final code.
Out of most of the VCS solutions out there, we found Gitlab was the most feature complete with a free community edition. Their DevSecops offering is also a very robust solution. Gitlab CI/CD was quite easy to setup and the direct integration with your VCS + CI/CD is also a bonus. Out of the box integration with major cloud providers, alerting through instant messages etc. are all extremely convenient. We push our CI/CD updates to MS Teams.
Gitlab as A LOT of features that GitHub and Azure DevOps are missing. Even if both GH and Azure are backed by Microsoft, GitLab being open source has a faster upgrade rate and the hosted by gitlab.com solution seems more appealing than anything else! Quick win: the UI is way better and the Pipeline is way easier to setup on GitLab!
Because Pulumi uses real programming languages, you can actually write abstractions for your infrastructure code, which is incredibly empowering. You still 'describe' your desired state, but by having a programming language at your fingers, you can factor out patterns, and package it up for easier consumption.
We use Terraform to manage AWS cloud environment for the project. It is pretty complex, largely static, security-focused, and constantly evolving.
Terraform provides descriptive (declarative) way of defining the target configuration, where it can work out the dependencies between configuration elements and apply differences without re-provisioning the entire cloud stack.
AdvantagesTerraform is vendor-neutral in a way that it is using a common configuration language (HCL) with plugins (providers) for multiple cloud and service providers.
Terraform keeps track of the previous state of the deployment and applies incremental changes, resulting in faster deployment times.
Terraform allows us to share reusable modules between projects. We have built an impressive library of modules internally, which makes it very easy to assemble a new project from pre-fabricated building blocks.
DisadvantagesSoftware is imperfect, and Terraform is no exception. Occasionally we hit annoying bugs that we have to work around. The interaction with any underlying APIs is encapsulated inside 3rd party Terraform providers, and any bug fixes or new features require a provider release. Some providers have very poor coverage of the underlying APIs.
Terraform is not great for managing highly dynamic parts of cloud environments. That part is better delegated to other tools or scripts.
Terraform state may go out of sync with the target environment or with the source configuration, which often results in painful reconciliation.
I personally am not a huge fan of vendor lock in for multiple reasons:
- I've seen cost saving moves to the cloud end up costing a fortune and trapping companies due to over utilization of cloud specific features.
- I've seen S3 failures nearly take down half the internet.
- I've seen companies get stuck in the cloud because they aren't built cloud agnostic.
I choose to use terraform for my cloud provisioning for these reasons:
- It's cloud agnostic so I can use it no matter where I am.
- It isn't difficult to use and uses a relatively easy to read language.
- It tests infrastructure before running it, and enables me to see and keep changes up to date.
- It runs from the same CLI I do most of my CM work from.
Pros of GitLab
- Self hosted508
- Free431
- Has community edition339
- Easy setup242
- Familiar interface240
- Includes many features, including ci137
- Nice UI113
- Good integration with gitlabci84
- Simple setup57
- Has an official mobile app35
- Free private repository34
- Continuous Integration31
- Open source, great ui (like github)23
- Slack Integration18
- Full CI flow15
- Free and unlimited private git repos11
- All in one (Git, CI, Agile..)10
- User, group, and project access management is simple10
- Intuitive UI8
- Built-in CI8
- Full DevOps suite with Git6
- Both public and private Repositories6
- Integrated Docker Registry5
- So easy to use5
- CI5
- Build/pipeline definition alongside code5
- It's powerful source code management tool5
- Dockerized4
- It's fully integrated4
- On-premises4
- Security and Stable4
- Unlimited free repos & collaborators4
- Not Microsoft Owned4
- Excellent4
- Issue system4
- Mattermost Chat client4
- Great for team collaboration3
- Free private repos3
- Because is the best remote host for git repositories3
- Built-in Docker Registry3
- Opensource3
- Low maintenance cost due omnibus-deployment3
- I like the its runners and executors feature3
- Beautiful2
- Groups of groups2
- Multilingual interface2
- Powerful software planning and maintaining tools2
- Review Apps feature2
- Kubernetes integration with GitLab CI2
- One-click install through DigitalOcean2
- Powerful Continuous Integration System2
- It includes everything I need, all packaged with docker2
- The dashboard with deployed environments2
- HipChat intergration2
- Many private repo2
- Kubernetes Integration2
- Published IP list for whitelisting (gl-infra#434)2
- Wounderful2
- Native CI2
- Supports Radius/Ldap & Browser Code Edits1
Pros of Terraform
- Infrastructure as code121
- Declarative syntax73
- Planning45
- Simple28
- Parallelism24
- Well-documented8
- Cloud agnostic8
- It's like coding your infrastructure in simple English6
- Immutable infrastructure6
- Platform agnostic5
- Extendable4
- Automation4
- Automates infrastructure deployments4
- Portability4
- Lightweight2
- Scales to hundreds of hosts2
Sign up to add or upvote prosMake informed product decisions
Cons of GitLab
- Slow ui performance28
- Introduce breaking bugs every release9
- Insecure (no published IP list for whitelisting)6
- Built-in Docker Registry2
- Review Apps feature1
Cons of Terraform
- Doesn't have full support to GKE1