#!/bin/bash
#
# Copyright 2018 Huawei Technologies Co., Ltd.
#
# 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
#

stack_name="onap"
portal_hostname="portal.api.simpledemo.onap.org"
full_deletion=false

# default branch for cloning integration repo
integration_gerrit_branch=$(git rev-parse --abbrev-ref HEAD)
# default branch for cloning oom repo
# by default, assume oom branch is the same as integration branch
oom_gerrit_branch=$(git rev-parse --abbrev-ref HEAD)

if [ -z "$WORKSPACE" ]; then
    export WORKSPACE=$(git rev-parse --show-toplevel)
fi


usage() {
    echo "Usage: $0 [ -n <number of VMs {2-15}> ][ -s <stack name> ][ -d <domain> ][ -i <integration_branch> ][ -o <oom_branch> ][ -r ][ -q ] <env>" 1>&2;

    echo "n:    Number of worker VMs to deploy. This number must be between 2 and 15." 1>&2;
    echo "s:    Stack name. This name will be used for naming of resources." 1>&2;
    echo "d:    Base domain name to be used in portal UI URLs." 1>&2;
    echo "i:    Branch of integration repo to clone." 1>&2;
    echo "o:    Branch of oom repo to clone." 1>&2;
    echo "r:    Delete all ONAP resource within tenant." 1>&2;
    echo "q:    Quiet delete of all ONAP resources within tenant." 1>&2;

    exit 1;
}


while getopts ":n:s:d:i:o:rq" o; do
    case "${o}" in
        n)
            if [[ ${OPTARG} =~ ^[0-9]+$ ]];then
                if [ ${OPTARG} -ge 2 -a ${OPTARG} -le 15 ]; then
                    vm_num=${OPTARG}
                else
                    usage
                fi
            else
                usage
            fi
            ;;
        s)
            if [[ ! ${OPTARG} =~ ^[0-9]+$ ]];then
                stack_name=${OPTARG}
            else
                usage
            fi
            ;;
        d)
            if [[ ! ${OPTARG} =~ ^[0-9]+$ ]];then
                portal_hostname=${OPTARG}
            else
                usage
            fi
            ;;
        i)
            integration_gerrit_branch=${OPTARG}
            ;;
        o)
            oom_gerrit_branch=${OPTARG}
            ;;
        r)
            echo "The following command will delete all information relating to onap within your enviroment"
            read -p "Are you certain this is what you want? (type y to confirm):" answer

            if [ $answer = "y" ] || [ $answer = "Y" ] || [ $answer = "yes" ] || [ $answer = "Yes"]; then
                echo "This may delete the work of other colleages within the same enviroment"
                read -p "Are you certain this is what you want? (type y to confirm):" answer2

                if [ $answer2 = "y" ] || [ $answer2 = "Y" ] || [ $answer2 = "yes" ] || [ $answer2 = "Yes"]; then
                    full_deletion=true
                else
                    echo "Ending program"
                    exit 1
                fi
            else
                echo "Ending program"
                exit 1
            fi
            ;;
        q)
            full_deletion=true
            ;;
        *)
            usage
            ;;
    esac
done
shift $((OPTIND-1))

if [ "$#" -ne 1 ]; then
   usage
fi

ENV_FILE=$1

if [ ! -f $ENV_FILE ];then
    echo ENV file does not exist or was not given
    exit 1
fi

set -x

SSH_KEY=~/.ssh/onap_key

if ! hash openstack jq java
then
    echo "ERROR: Required commands not found; please install openstack CLI, jq, java."
    exit 2
fi

SO_ENCRYPTION_KEY=aa3871669d893c7fb8abbcda31b88b4f
export OS_PASSWORD_ENCRYPTED_FOR_ROBOT=$(echo -n "$OS_PASSWORD" | openssl aes-128-ecb -e -K "$SO_ENCRYPTION_KEY" -nosalt | xxd -c 256 -p)

#Use new encryption method
pushd $WORKSPACE/deployment/heat/onap-rke/scripts
javac Crypto.java
#SO_ENCRYPTION_KEY=aa3871669d893c7fb8abbcda31b88b4f
export OS_PASSWORD_ENCRYPTED=$(java Crypto "$OS_PASSWORD" "$SO_ENCRYPTION_KEY")
popd

for n in $(seq 1 5); do
    if [ $full_deletion = true ] ; then
        $WORKSPACE/deployment/heat/onap-rke/scripts/teardown-onap.sh -n $stack_name -q
    else
        $WORKSPACE/deployment/heat/onap-rke/scripts/teardown-onap.sh -n $stack_name
    fi

    cd $WORKSPACE/deployment/heat/onap-rke
    envsubst < $ENV_FILE > $ENV_FILE~
    if [ -z "$vm_num" ]; then
        cp onap-oom.yaml onap-oom.yaml~
    else
        ./scripts/gen-onap-oom-yaml.sh $vm_num > onap-oom.yaml~
    fi

    if ! openstack stack create -t ./onap-oom.yaml~ -e $ENV_FILE~ $stack_name --parameter integration_gerrit_branch=$integration_gerrit_branch --parameter oom_gerrit_branch=$oom_gerrit_branch -parameter portal_hostname=$portal_hostname; then
        break
    fi

    while [ "CREATE_IN_PROGRESS" == "$(openstack stack show -c stack_status -f value $stack_name)" ]; do
        sleep 20
    done

    STATUS=$(openstack stack show -c stack_status -f value $stack_name)
    echo $STATUS
    if [ "CREATE_COMPLETE" != "$STATUS" ]; then
        break
    fi

    for i in $(seq 1 30); do
	sleep 30
	NFS_IP=$(openstack stack output show $stack_name nfs_vm_ip -c output_value -f value)
        K8S_IP=$(openstack stack output show $stack_name k8s_01_vm_ip -c output_value -f value)
	timeout 1 ping -c 1 "$NFS_IP" && break
    done

    timeout 1 ping -c 1 "$NFS_IP" && break

    echo Error: OpenStack infrastructure issue: unable to reach NFS server "$NFS_IP"
    sleep 10
done

if ! timeout 1 ping -c 1 "$NFS_IP"; then
    exit 2
fi

# wait until all k8s VMs have fully initialized
for VM_NAME in $(grep _vm: ./onap-oom.yaml~ | cut -d: -f1); do
    echo $VM_NAME
    VM_IP=$(openstack stack output show $stack_name ${VM_NAME}_ip -c output_value -f value)
    ssh-keygen -R $VM_IP
    until ssh -o StrictHostKeychecking=no -i $SSH_KEY ubuntu@$VM_IP ls -ad /dockerdata-nfs/.git; do
        sleep 1m
    done
done

cat > ./cluster.yml~ <<EOF
# GENERATED for $stack_name
nodes:
EOF

for VM_NAME in $(grep -E 'k8s_.+_vm:' ./onap-oom.yaml~ | cut -d: -f1); do
    echo $VM_NAME
    VM_IP=$(openstack stack output show $stack_name ${VM_NAME}_ip -c output_value -f value)
    VM_PRIVATE_IP=$(openstack stack output show $stack_name ${VM_NAME}_private_ip -c output_value -f value)
    VM_HOSTNAME=$stack_name-$(echo $VM_NAME | tr '_' '-' | cut -d- -f1,2)
    cat >> ./cluster.yml~ <<EOF
- address: $VM_IP
  port: "22"
  internal_address: $VM_PRIVATE_IP
  role:
  - worker
  hostname_override: "$VM_HOSTNAME"
  user: ubuntu
  ssh_key_path: "$SSH_KEY"
EOF
done

for VM_NAME in $(grep -E 'orch_.+_vm:' ./onap-oom.yaml~ | cut -d: -f1); do
    echo $VM_NAME
    VM_IP=$(openstack stack output show $stack_name ${VM_NAME}_ip -c output_value -f value)
    VM_PRIVATE_IP=$(openstack stack output show $stack_name ${VM_NAME}_private_ip -c output_value -f value)
    VM_HOSTNAME=$stack_name-$(echo $VM_NAME | tr '_' '-' | cut -d- -f1,2)
    cat >> ./cluster.yml~ <<EOF
- address: $VM_IP
  port: "22"
  internal_address: $VM_PRIVATE_IP
  role:
  - controlplane
  - etcd
  hostname_override: "$VM_HOSTNAME"
  user: ubuntu
  ssh_key_path: "$SSH_KEY"
EOF
done

DOCKER_PROXY=$(openstack stack output show $stack_name docker_proxy -c output_value -f value)

cat >> ./cluster.yml~ <<EOF
services:
  kube-api:
    service_cluster_ip_range: 10.43.0.0/16
    pod_security_policy: false
    always_pull_images: false
  kube-controller:
    cluster_cidr: 10.42.0.0/16
    service_cluster_ip_range: 10.43.0.0/16
  kubelet:
    cluster_domain: cluster.local
    cluster_dns_server: 10.43.0.10
    fail_swap_on: false
network:
  plugin: canal
authentication:
  strategy: x509
ssh_key_path: "$SSH_KEY"
ssh_agent_auth: false
authorization:
  mode: rbac
ignore_docker_version: false
kubernetes_version: "v1.13.5-rancher1-2"
private_registries:
- url: $DOCKER_PROXY
  is_default: true
cluster_name: "$stack_name"
restore:
  restore: false
  snapshot_name: ""
EOF

rm -rf ./target
mkdir -p ./target
cp ./cluster.yml~ ./target/cluster.yml
pushd ./target

wget https://github.com/rancher/rke/releases/download/v0.2.1/rke_linux-amd64
mv rke_linux-amd64 rke
chmod +x rke

# spin up k8s with RKE
until ./rke up; do
    sleep 1m
    ./rke remove
done

scp -i $SSH_KEY ./kube_config_cluster.yml root@$NFS_IP:/root/.kube/config
popd


sleep 2m
ssh -o StrictHostKeychecking=no -i $SSH_KEY ubuntu@$NFS_IP "sed -u '/Cloud-init.*finished/q' <(tail -n+0 -f /var/log/cloud-init-output.log)"

exit 0