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Juju
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Juju vs Terraform: What are the differences?

Juju: Ubuntu Cloud brings freedom to the clouds. Juju is an open source, application and service modelling tool from Ubuntu that helps you deploy, manage and scale your applications on any cloud; Terraform: Describe your complete infrastructure as code and build resources across providers. With Terraform, you describe your complete infrastructure as code, even as it spans multiple service providers. Your servers may come from AWS, your DNS may come from CloudFlare, and your database may come from Heroku. Terraform will build all these resources across all these providers in parallel.

Juju belongs to "Server Configuration and Automation" category of the tech stack, while Terraform can be primarily classified under "Infrastructure Build Tools".

Some of the features offered by Juju are:

  • Consistent naming
  • Tagging
  • Ability to add user-controlled tags to created instances

On the other hand, Terraform provides the following key features:

  • Infrastructure as Code: Infrastructure is described using a high-level configuration syntax. This allows a blueprint of your datacenter to be versioned and treated as you would any other code. Additionally, infrastructure can be shared and re-used.
  • Execution Plans: Terraform has a "planning" step where it generates an execution plan. The execution plan shows what Terraform will do when you call apply. This lets you avoid any surprises when Terraform manipulates infrastructure.
  • Resource Graph: Terraform builds a graph of all your resources, and parallelizes the creation and modification of any non-dependent resources. Because of this, Terraform builds infrastructure as efficiently as possible, and operators get insight into dependencies in their infrastructure.

Terraform is an open source tool with 18.2K GitHub stars and 4.92K GitHub forks. Here's a link to Terraform's open source repository on GitHub.

- No public GitHub repository available -

What is Juju?

It is an open source, application and service modelling tool from Ubuntu that helps you deploy, manage and scale your applications on any cloud.

What is Terraform?

With Terraform, you describe your complete infrastructure as code, even as it spans multiple service providers. Your servers may come from AWS, your DNS may come from CloudFlare, and your database may come from Heroku. Terraform will build all these resources across all these providers in parallel.
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Why do developers choose Juju?
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        What are some alternatives to Juju and Terraform?
        OpenStack
        OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a datacenter, all managed through a dashboard that gives administrators control while empowering their users to provision resources through a web interface.
        Ansible
        Ansible is an IT automation tool. It can configure systems, deploy software, and orchestrate more advanced IT tasks such as continuous deployments or zero downtime rolling updates. Ansible鈥檚 goals are foremost those of simplicity and maximum ease of use.
        Chef
        Chef enables you to manage and scale cloud infrastructure with no downtime or interruptions. Freely move applications and configurations from one cloud to another. Chef is integrated with all major cloud providers including Amazon EC2, VMWare, IBM Smartcloud, Rackspace, OpenStack, Windows Azure, HP Cloud, Google Compute Engine, Joyent Cloud and others.
        Capistrano
        Capistrano is a remote server automation tool. It supports the scripting and execution of arbitrary tasks, and includes a set of sane-default deployment workflows.
        Puppet Labs
        Puppet is an automated administrative engine for your Linux, Unix, and Windows systems and performs administrative tasks (such as adding users, installing packages, and updating server configurations) based on a centralized specification.
        See all alternatives
        Decisions about Juju and Terraform
        John Kodumal
        John Kodumal
        CTO at LaunchDarkly | 3 upvotes 27K views
        atLaunchDarklyLaunchDarkly
        Armory
        Armory
        Packer
        Packer
        Terraform
        Terraform
        Spinnaker
        Spinnaker
        Ansible
        Ansible

        LaunchDarkly is almost a five year old company, and our methodology for deploying was state of the art... for 2014. We recently undertook a project to modernize the way we #deploy our software, moving from Ansible-based deploy scripts that executed on our local machines, to using Spinnaker (along with Terraform and Packer) as the basis of our deployment system. We've been using Armory's enterprise Spinnaker offering to make this project a reality.

        See more
        Joseph Kunzler
        Joseph Kunzler
        DevOps Engineer at Tillable | 9 upvotes 23.3K views
        atTillableTillable
        AWS CloudFormation
        AWS CloudFormation
        AWS Elastic Load Balancing (ELB)
        AWS Elastic Load Balancing (ELB)
        Amazon EC2
        Amazon EC2
        Amazon S3
        Amazon S3
        Terraform
        Terraform

        We use Terraform because we needed a way to automate the process of building and deploying feature branches. We wanted to hide the complexity such that when a dev creates a PR, it triggers a build and deployment without the dev having to worry about any of the 'plumbing' going on behind the scenes. Terraform allows us to automate the process of provisioning DNS records, Amazon S3 buckets, Amazon EC2 instances and AWS Elastic Load Balancing (ELB)'s. It also makes it easy to tear it all down when finished. We also like that it supports multiple clouds, which is why we chose to use it over AWS CloudFormation.

        See more
        AWS CloudFormation
        AWS CloudFormation
        Google Cloud Deployment Manager
        Google Cloud Deployment Manager
        Terraform
        Terraform

        I use Terraform because it hits the level of abstraction pocket of being high-level and flexible, and is agnostic to cloud platforms. Creating complex infrastructure components for a solution with a UI console is tedious to repeat. Using low-level APIs are usually specific to cloud platforms, and you still have to build your own tooling for deploying, state management, and destroying infrastructure.

        However, Terraform is usually slower to implement new services compared to cloud-specific APIs. It's worth the trade-off though, especially if you're multi-cloud. I heard someone say, "We want to preference a cloud, not lock in to one." Terraform builds on that claim.

        Terraform Google Cloud Deployment Manager AWS CloudFormation

        See more
        Pedro Arnal Puente
        Pedro Arnal Puente
        CTO at La Cupula Music SL | 7 upvotes 28.2K views
        atLa Cupula Music SLLa Cupula Music SL
        Ansible
        Ansible
        Packer
        Packer
        Terraform
        Terraform
        Amazon ElastiCache
        Amazon ElastiCache
        Redis
        Redis
        Amazon RDS for Aurora
        Amazon RDS for Aurora
        Amazon S3
        Amazon S3
        Amazon EC2
        Amazon EC2
        Debian
        Debian

        Our base infrastructure is composed of Debian based servers running in Amazon EC2 , asset storage with Amazon S3 , and Amazon RDS for Aurora and Redis under Amazon ElastiCache for data storage.

        We are starting to work in automated provisioning and management with Terraform , Packer , and Ansible .

        See more
        Interest over time
        Reviews of Juju and Terraform
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        How developers use Juju and Terraform
        Avatar of Royal Icing
        Royal Icing uses TerraformTerraform

        Terraform makes it so easy to deploy AWS and Google Cloud services, with the declarative approach avoiding so many headaches of manual work and possible mistakes.

        Avatar of B霉i Thanh
        B霉i Thanh uses TerraformTerraform
        • Infrastructure as Code.
        • Central tool to deploy all infratructure: AWS, CloudFlare, StatusCake
        Avatar of Prime Technologies
        Prime Technologies uses TerraformTerraform

        The entire AWS environments is described and setup using Terraform.

        Avatar of Binded
        Binded uses TerraformTerraform

        All of our infrastructure is stored as code thanks to Terraform.

        Avatar of Razorpay
        Razorpay uses TerraformTerraform

        We orchestrate our AWS infrastructure using Terraform.

        How much does Juju cost?
        How much does Terraform cost?
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