#!/usr/bin/env bash

# Copyright 2017 The Kubernetes Authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

###############################################################################

#

# dev-build.sh

#

# Convenience script for developing kops AND nodeup.

#

# This script (by design) will handle building a full kops cluster in AWS,

# with a custom version of the nodeup, protokube and dnscontroller.

#

# This script and Makefile uses aws client

# https://aws.amazon.com/cli/

# and make sure you `aws configure`

#

# # Example usage

#

# KOPS_STATE_STORE="s3://my-dev-s3-state" \

# CLUSTER_NAME="fullcluster.name.mydomain.io" \

# NODEUP_BUCKET="s3-devel-bucket-name-store-nodeup" \

# IMAGE="kope.io/k8s-1.6-debian-jessie-amd64-hvm-ebs-2017-05-02" \

# ./dev-build.sh

#

# # TLDR;

# 1. setup dns in route53

# 2. create s3 buckets - state store and nodeup bucket

# 3. set zones appropriately, you need 3 zones in a region for HA

# 4. run script

# 5. find bastion to ssh into (look in ELBs)

# 6. use ssh-agent and ssh -A

# 7. your pem will be the access token

# 8. user is admin, and the default is debian

#

# # For more details see:

#

# https://github.com/kubernetes/kops/blob/master/docs/getting_started/aws.md

#

###############################################################################

. "$(dirname "${BASH_SOURCE[0]}")/common.sh"

#

# Check that required binaries are installed

#

command -v make >/dev/null 2>&1 || { echo >&2 "I require make but it's not installed. Aborting."; exit 1; }

command -v go >/dev/null 2>&1 || { echo >&2 "I require go but it's not installed. Aborting."; exit 1; }

command -v docker >/dev/null 2>&1 || { echo >&2 "I require docker but it's not installed. Aborting."; exit 1; }

command -v aws >/dev/null 2>&1 || { echo >&2 "I require aws cli but it's not installed. Aborting."; exit 1; }

#

# Check that expected vars are set

#

[ -z "$KOPS_STATE_STORE" ] && echo "Need to set KOPS_STATE_STORE" && exit 1;

[ -z "$CLUSTER_NAME" ] && echo "Need to set CLUSTER_NAME" && exit 1;

[ -z "$NODEUP_BUCKET" ] && echo "Need to set NODEUP_BUCKET" && exit 1;

[ -z "$IMAGE" ] && echo "Need to set IMAGE or use the image listed here https://github.com/kubernetes/kops/blob/master/channels/stable" && exit 1;

# Cluster config

NODE_COUNT=${NODE_COUNT:-3}

NODE_ZONES=${NODE_ZONES:-"us-west-2a,us-west-2b,us-west-2c"}

NODE_SIZE=${NODE_SIZE:-m4.xlarge}

MASTER_ZONES=${MASTER_ZONES:-"us-west-2a,us-west-2b,us-west-2c"}

MASTER_SIZE=${MASTER_SIZE:-m4.large}

KOPS_CREATE=${KOPS_CREATE:-yes}

# NETWORK

TOPOLOGY=${TOPOLOGY:-private}

NETWORKING=${NETWORKING:-calico}

# How verbose go logging is

VERBOSITY=${VERBOSITY:-10}

cd "${KOPS_ROOT}"

GIT_VER=git-$(git describe --always)

[ -z "$GIT_VER" ] && echo "we do not have GIT_VER something is very wrong" && exit 1;

echo ==========

echo "Starting build"

# removing CI=1 because it forces a new upload every time

# export CI=1

make && UPLOAD_DEST=s3://${NODEUP_BUCKET} make upload

# removing make test since it relies on the files in the bucket

# && make test

KOPS_VERSION=$(kops version --short)

KOPS_BASE_URL="http://${NODEUP_BUCKET}.s3.amazonaws.com/kops/${KOPS_VERSION}/"

echo "KOPS_BASE_URL=${KOPS_BASE_URL}"

echo "NODEUP_URL=${KOPS_BASE_URL}linux/amd64/nodeup"

echo ==========

echo "Deleting cluster ${CLUSTER_NAME}. Elle est finie."

kops delete cluster \

--name $CLUSTER_NAME \

--state $KOPS_STATE_STORE \

-v $VERBOSITY \

--yes

echo ==========

echo "Creating cluster ${CLUSTER_NAME}"

kops_command="NODEUP_URL=${KOPS_BASE_URL}linux/amd64/nodeup KOPS_BASE_URL=${KOPS_BASE_URL} kops create cluster --name $CLUSTER_NAME --state $KOPS_STATE_STORE --node-count $NODE_COUNT --zones $NODE_ZONES --master-zones $MASTER_ZONES --node-size $NODE_SIZE --master-size $MASTER_SIZE -v $VERBOSITY --image $IMAGE --channel alpha --topology $TOPOLOGY --networking $NETWORKING"

if [[ $TOPOLOGY == "private" ]]; then

kops_command+=" --bastion='true'"

fi

if [ -n "${KOPS_FEATURE_FLAGS+x}" ]; then

kops_command=KOPS_FEATURE_FLAGS="${KOPS_FEATURE_FLAGS}" $kops_command

fi

if [[ $KOPS_CREATE == "yes" ]]; then

kops_command="$kops_command --yes"

fi

eval $kops_command

echo ==========

echo "Your k8s cluster ${CLUSTER_NAME}, awaits your bidding."