#!/usr/bin/env bash

## pre-configure
opsys=$(uname -s | tr '[:upper:]' '[:lower:]')

## Install

pip install -q --user --upgrade pip awscli aws-shell cfn-flip yamllint \
  && echo "installed user-level pip things: aws-shell awscli cfn-flip yamllint"

mkdir ~/.local/bin #doesn't get made by `pip --user` if your python comes from brew?

pushd ~/.local/bin #now this should work

# Getting Started with Amazon EKS - Install and Configure <b>kubectl</b> for Amazon EKS  - https://docs.aws.amazon.com/eks/latest/userguide/getting-started.html#get-started-kubectl
curl -so aws-iam-authenticator "https://amazon-eks.s3-us-west-2.amazonaws.com/1.11.5/2018-12-06/bin/${opsys}/amd64/aws-iam-authenticator" \
  && chmod 700 aws-iam-authenticator \
  && echo "installed aws-iam-authenticator"
curl -so kubectl "https://amazon-eks.s3-us-west-2.amazonaws.com/1.11.5/2018-12-06/bin/${opsys}/amd64/kubectl" \
  && chmod 700 kubectl \
  && echo "installed kubectl"

#kubectx/kubens #os independent bash only
curl -so kubectx https://raw.githubusercontent.com/ahmetb/kubectx/master/kubectx \
  && chmod 700 kubectx \
  && echo "installed kubectx"
curl -so kubens https://raw.githubusercontent.com/ahmetb/kubectx/master/kubens \
  && chmod 700 kubens \
  && echo "installed kubens"

# Kustomize install script
#opsys=linux  # or darwin, or windows 
# //TODO: check for rate-limiting by GitHub API, lol.
#curl -s https://api.github.com/repos/kubernetes-sigs/kustomize/releases/latest |\
#  grep browser_download |\
#  grep -i ${opsys} |\
#  cut -d '"' -f 4 |\
#  xargs curl -s -O -L
curl -s -O -L "https://github.com/kubernetes-sigs/kustomize/releases/download/v1.0.11/kustomize_1.0.11_${opsys}_amd64"
mv kustomize_*_${opsys}_amd64 ~/.local/bin/kustomize
chmod u+x ~/.local/bin/kustomize \
    && echo "installed kustomize"

# Helm
pushd ~/
curl -s -O -L "https://storage.googleapis.com/kubernetes-helm/helm-v2.12.1-${opsys}-amd64.tar.gz"
tar xz -f helm-v2.12.1-${opsys}-amd64.tar.gz -C /tmp

mv /tmp/${opsys}-amd64/helm ~/.local/bin/
~/.local/bin/helm init --client-only
rm -rfv helm-v2.11.0-${opsys}-amd64.tar.gz
popd

# eksctl eksctl.io written by weaveworks
curl --silent --location "https://github.com/weaveworks/eksctl/releases/download/latest_release/eksctl_${opsys}_amd64.tar.gz" | tar xz -C /tmp
mv /tmp/eksctl ~/.local/bin


## Config Files

if [ ! -d ~/.kube ]; then mkdir ~/.kube; fi

# **IF** you made the cluster with this user
# aws eks update-kubeconfig --name cluster_name
# else
#echo "export KUBECONFIG=~/.kube/<thing>:$KUBECONFIG" >> ~/.bashrc

echo "remember to source ~/.bashrc"

## END
popd