Packer

vs

Dokku

Vagrant is an open-source software building portable and virtual development environments. With Vagrant, developers and devops can create development environments that mirror production environment by providing the same operating system, packages, users, and configurations. Vagrant can be spin up environments for VirtualBox, KVM, Hyper-V, Docker containers, VMware, and AWS, and integrates with exiting configuration tooling such as Ansible, Chef, Docker, Puppet or Salt

Ansible is an open-source software provisioning, configuration management, and application-deployment tool. With Ansible you can streamline your deployment process, allowing you to roll out enterprise scale applications with the bush of a button or a command via the terminal. Ansible itself is written in Python and has a minimal learning curve, allowing you to build simple setup procedures that can manage all of your CI/CD needs.

Terraform is an open-source infrastructure as code software tool created by HashiCorp. It allows infrastructure to be expressed as code in a simple, human readable language called HCL (HashiCorp Configuration Language). The Terraform CLI automatically reads configuration files and provides an execution plan of changes, which can be reviewed for safety and then applied and provisioned.

CapRover is an free and easy-to-use application deployment and server manager for NodeJS, Python, PHP, ASP.NET, Ruby, MySQL, MongoDB, Postgres, WordPress and more. With CapRover you can create your own PaaS (Platform-as-a-Service) similar to that of Heroku, and deploying it to your own cloud instance.

Swarmlet is a free and open-source, self-hosted Platform as a Service that runs on any single server. It's mainly intended for use with multiple servers, a server cluster / swarm. Swarmlet is inspired by Dokku and brings the same simplicity to Docker Swarm. Swarmlet also uses Traefik v2 and Let's Encrypt to provide automatic SSL and load balancing on your apps.

Terraform is an open-source infrastructure as code software tool created by HashiCorp. It allows infrastructure to be expressed as code in a simple, human readable language called HCL (HashiCorp Configuration Language). The Terraform CLI automatically reads configuration files and provides an execution plan of changes, which can be reviewed for safety and then applied and provisioned.