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+[**AsCode**](https://ascode.run) is a tool to define infrastructure as code using the [Starlark](https://github.com/google/starlark-go/blob/master/doc/spec.md) language on top of [Terraform](https://github.com/hashicorp/terraform). It allows to describe your infrastructure using an expressive language in Terraform without writing a single line of HCL, meanwhile, you have the complete ecosystem of [providers](https://www.terraform.io/docs/providers/index.html) -**AsCode** is a tool to define infrastructure as code using the [Starlark](https://github.com/google/starlark-go/blob/master/doc/spec.md) language on top of [Terraform](https://github.com/hashicorp/terraform). It allows to describe your infrastructure using an expressive language in Terraform without writing a single line of HCL, meanwhile, you have the complete ecosystem of [providers](https://www.terraform.io/docs/providers/index.html) +

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-### Why? - -Terraform is a great tool, with support for almost everything you can imagine, making it the industry leader. Terraform is based on HCL, a JSON-alike declarative language, with minimal control flow functionality. IMHO, to unleash the power of the IaC, a powerful, expressive language should be used, where basic elements like loops or functions are first-class citizens. - -### What is Starlark? - -> Starlark is a dialect of Python intended for use as a configuration language. A Starlark interpreter is typically embedded within a larger application, and this application may define additional domain-specific functions and data types beyond those provided by the core language. For example, Starlark is embedded within (and was originally developed for) the Bazel build tool, and Bazel's build language is based on Starlark. - -## Examples - -### Simple - -Creating am Amazon EC2 Instance is as easy as: - -```pyhon -aws = tf.provider("aws", "2.13.0") -aws.region = "us-west-2" - -aws.resource.instance(instance_type ="t2.micro", ami="ami-2757f631") -``` -### Using functions - -In this example we create 40 instances, 20 using ubuntu and 20 using ECS. - -```python -aws = tf.provider("aws") -aws.region = "us-west-2" - -# It creates a new instance for the given name, distro and type. -def new_instance(name, distro, type="t2.micro"): - instance = aws.resource.instance(name) - instance.instance_type = type - instance.ami = get_ami_id(distro) - - return instance - -amis = {} -ami_names_owners = { - "ubuntu": ["ubuntu/images/*/ubuntu-xenial-16.04-amd64-server-*", "099720109477"], - "ecs": ["*amazon-ecs-optimized", "591542846629"], -} - -# We create the AMI data-source for the given distro. -def get_ami_id(distro): - if distro in amis: - return amis[distro] - - data = ami_names_owners[distro] - - ami = aws.data.ami(distro) - ami.most_recent = True - ami.filter(name="name", values=[data[0]]) - ami.filter(name="virtualization-type", values=["hvm"]) - ami.owners = [data[1]] - - amis[distro] = ami.id - return ami.id - -# Creates 20 instances of each distro. -for i in range(20): - new_instance("ubuntu_%d" % i, "ubuntu") - new_instance("ecs_%d" % i, "ecs") - ``` - -### Using the runtime - -ascode comes with a built-in runtime with functions to work with `yaml`, `json`, `http`, etc. Take a look to the [documentation](/_documentation/runtime). - -``` -load("encoding/base64", "base64") -load("http", "http") - -dec = base64.encode("ascode is amazing") - -msg = http.get("https://httpbin.org/base64/%s" % dec) -print(msg.body()) -``` - - -## Installation - -The recommended way to install *ascode* it's download the binary from the [releases](https://github.com/mcuadros/ascode/releases) section. +## Table of Contents +- [Quick Install](https://ascode.run/docs/install/) +- [Getting Started](https://ascode.run/docs/getting-started/) +- [Examples](https://ascode.run/docs/example/) +- [GitHub Action](https://ascode.run/docs/github-action/) ## License GPL-3.0, see [LICENSE](LICENSE) - -[logo]: https://rawcdn.githack.com/mcuadros/hugo-ascode-theme/58eb37db93a6566800f44a0b488547c5078cc050/static/images/logo.svg \ No newline at end of file