kaws

kaws is a tool for creating and managing Kubernetes clusters on AWS using Terraform. It ties together several other tools to make Kubernetes deployment easy, repeatable, and secure.

kaws is not intended to support every possible deployment scenario for Kubernetes clusters. It follows a specific approach used by InQuicker, involving specific software, services, and conventions. Specifically, kaws creates Kubernetes clusters in AWS using CoreOS servers, all managed by declarative configuration files with Terraform.

Status

kaws has not yet reached version 1.0, and is not recommended for production usage until it has. In accordanace with Semantic Versioning, while kaws is < 1.0, backwards incompatible changes may occur. Major expected changes include using rkt as the container runtime for Kubernetes. See the issues for details.

kaws has not been reviewed by security professionals. For information about the threat model of kaws, see the security document.

Synopsis

USAGE:
    kaws [FLAGS] [SUBCOMMAND]

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

SUBCOMMANDS:
    admin      Commands for managing cluster administrators
    cluster    Commands for managing a cluster's infrastructure
    help       Prints this message or the help message of the given subcommand(s)
    init       Initializes a new repository for managing Kubernetes clusters

Start by creating a new repository with the init command.

Goals

• Define infrastructure as code for predictability and repeatability
• Produce secure, highly available Kubernetes clusters
• Generate and distribute Kubernetes API access credentials securely
• Avoid shell scripting as much as possible

Supported platforms

At this time, kaws has only been developed for and tested on OS X. Support for Linux is planned.

Installing dependencies

kaws requires the following other programs to be available on your system:

• Terraform, version 0.7 or greater
• OpenSSL
• kubectl, version 1.4.0 or greater

OS X

All the dependencies can be installed with Homebrew:

brew install terraform openssl kubernetes-cli

To use the Homebrew-installed OpenSSL, prefix the cargo build command (in the section on build from source below) with:

OPENSSL_INCLUDE_DIR=`brew --prefix openssl`/include OPENSSL_LIB_DIR=`brew --prefix openssl`/lib

Installing kaws

Once all the required dependencies are installed on your system, you can install kaws.

Precompiled binaries

Signed precompiled binaries for tagged version numbers are available for download on the releases page.

Building from source

1. Install the appropriate version of Rust for your system.
2. Run git clone [email protected]:InQuicker/kaws.git.
3. Inside the freshly cloned repository, run cargo build --release.
4. Copy the binary from target/release/kaws to a directory in your PATH, such as /usr/local/bin.

Documentation

Detailed documentation is available in the docs directory. A good place to start is the overview.

Legal

kaws is released under the MIT license. See LICENSE for details.