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#!/bin/bash
#############################################################################
# Copyright © 2019 Bell.
#
# 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.
#
#############################################################################
#
# This installation is for an RKE install of kubernetes
# after this run the standard oom install
# this installation can be run on any ubuntu 16.04/18.04 VM, RHEL 7.6 (root only), physical or cloud azure/aws host
# https://wiki.onap.org/display/DW/OOM+RKE+Kubernetes+Deployment
# source from https://jira.onap.org/browse/OOM-1598
#
# master/dublin 
#     RKE 0.1.16 Kubernetes 1.11.6, kubectl 1.11.6, Helm 2.9.1, Docker 18.06
#     20190428 RKE 0.2.1, Kubernetes 1.13.5, kubectl 1.13.5, Helm 2.12.3, Docker 18.09.5
# single node install, HA pending

usage() {
cat <<EOF
Usage: $0 [PARAMs]
example
sudo ./rke_setup.sh -b dublin -s rke.onap.cloud -e onap -l amdocs -v true
-u                  : Display usage
-b [branch]         : branch = master or dublin (required)
-s [server]         : server = IP or DNS name (required)
-e [environment]    : use the default (onap)
-k [key]            : ssh key name
-l [username]       : login username account (use ubuntu for example)
EOF
}

install_onap() {
  #constants
  PORT=8880
  KUBERNETES_VERSION=
  RKE_VERSION=0.2.1
  KUBECTL_VERSION=1.13.5
  HELM_VERSION=2.12.3
  DOCKER_VERSION=18.09
 
  # copy your private ssh key and cluster.yml file to the vm
  # on your dev machine
  #sudo cp ~/.ssh/onap_rsa .
  #sudo chmod 777 onap_rsa 
  #scp onap_rsa ubuntu@192.168.241.132:~/
  # on this vm
  #sudo chmod 400 onap_rsa 
  #sudo cp onap_rsa ~/.ssh
  # make sure public key is insetup correctly in 
  # sudo vi ~/.ssh/authorized_keys

  echo "please supply your ssh key as provided by the -k keyname - it must be be chmod 400 and chown user:user in ~/.ssh/"
  echo "The RKE version specific cluster.yaml is already integrated in this script for 0.2.1 no need for below generation..."
  echo "rke config --name cluster.yml"
  echo "specifically"
  echo "address: $SERVER"
  echo "user: $USERNAME"
  echo "ssh_key_path: $SSHPATH_PREFIX/$SSHKEY" 
  
  RKETOOLS=
  HYPERCUBE=
  POD_INFRA_CONTAINER=
  RKETOOLS=0.1.27
  HYPERCUBE=1.13.5-rancher1
  POD_INFRA_CONTAINER=rancher/pause:3.1

  cat > cluster.yml <<EOF
# generated from rke_setup.sh
nodes:
- address: $SERVER
  port: "22"
  internal_address: ""
  role:
  - controlplane
  - worker
  - etcd
  hostname_override: ""
  user: $USERNAME
  docker_socket: /var/run/docker.sock
  ssh_key: ""
  ssh_key_path: $SSHPATH_PREFIX/$SSHKEY
  ssh_cert: ""
  ssh_cert_path: ""
  labels: {}
services:
  etcd:
    image: ""
    extra_args: {}
    extra_binds: []
    extra_env: []
    external_urls: []
    ca_cert: ""
    cert: ""
    key: ""
    path: ""
    snapshot: null
    retention: ""
    creation: ""
    backup_config: null
  kube-api:
    image: ""
    extra_args: {}
    extra_binds: []
    extra_env: []
    service_cluster_ip_range: 10.43.0.0/16
    service_node_port_range: ""
    pod_security_policy: false
    always_pull_images: false
  kube-controller:
    image: ""
    extra_args: {}
    extra_binds: []
    extra_env: []
    cluster_cidr: 10.42.0.0/16
    service_cluster_ip_range: 10.43.0.0/16
  scheduler:
    image: ""
    extra_args: {}
    extra_binds: []
    extra_env: []
  kubelet:
    image: ""
    extra_args:
      max-pods: 900
    extra_binds: []
    extra_env: []
    cluster_domain: cluster.local
    infra_container_image: ""
    cluster_dns_server: 10.43.0.10
    fail_swap_on: false
  kubeproxy:
    image: ""
    extra_args: {}
    extra_binds: []
    extra_env: []
network:
  plugin: canal
  options: {}
authentication:
  strategy: x509
  sans: []
  webhook: null
system_images:
  etcd: rancher/coreos-etcd:v3.2.24-rancher1
  alpine: rancher/rke-tools:v$RKETOOLS
  nginx_proxy: rancher/rke-tools:v$RKETOOLS
  cert_downloader: rancher/rke-tools:v$RKETOOLS
  kubernetes_services_sidecar: rancher/rke-tools:v$RKETOOLS
  kubedns: rancher/k8s-dns-kube-dns:1.15.0
  dnsmasq: rancher/k8s-dns-dnsmasq-nanny:1.15.0
  kubedns_sidecar: rancher/k8s-dns-sidecar:1.15.0
  kubedns_autoscaler: rancher/cluster-proportional-autoscaler:1.0.0
  kubernetes: rancher/hyperkube:v$HYPERCUBE
  flannel: rancher/coreos-flannel:v0.10.0-rancher1
  flannel_cni: rancher/flannel-cni:v0.3.0-rancher1
  calico_node: rancher/calico-node:v3.4.0
  calico_cni: rancher/calico-cni:v3.4.0
  calico_controllers: ""
  calico_ctl: rancher/calico-ctl:v2.0.0
  canal_node: rancher/calico-node:v3.4.0
  canal_cni: rancher/calico-cni:v3.4.0
  canal_flannel: rancher/coreos-flannel:v0.10.0
  wave_node: weaveworks/weave-kube:2.5.0
  weave_cni: weaveworks/weave-npc:2.5.0
  pod_infra_container: $POD_INFRA_CONTAINER
  ingress: rancher/nginx-ingress-controller:0.21.0-rancher3
  ingress_backend: rancher/nginx-ingress-controller-defaultbackend:1.4-rancher1
  metrics_server: rancher/metrics-server:v0.3.1
ssh_key_path: $SSHPATH
ssh_cert_path: ""
ssh_agent_auth: false
authorization:
  mode: rbac
  options: {}
ignore_docker_version: false
kubernetes_version: "$KUBERNETES_VERSION"
private_registries: []
ingress:
  provider: ""
  options: {}
  node_selector: {}
  extra_args: {}
cluster_name: ""
cloud_provider:
  name: ""
prefix_path: ""
addon_job_timeout: 0
bastion_host:
  address: ""
  port: ""
  user: ""
  ssh_key: ""
  ssh_key_path: ""
  ssh_cert: ""
  ssh_cert_path: ""
monitoring:
  provider: ""
  options: {}
restore:
  restore: false
  snapshot_name: ""
dns: null
EOF



  echo "Installing on ${SERVER} for ${BRANCH}: RKE: ${RKE_VERSION} Kubectl: ${KUBECTL_VERSION} Helm: ${HELM_VERSION} Docker: ${DOCKER_VERSION} username: ${USERNAME}"
  sudo echo "127.0.0.1 ${SERVER}" >> /etc/hosts
  echo "Install docker - If you must install as non-root - comment out the docker install below - run it separately, run the user mod, logout/login and continue this script"
  curl https://releases.rancher.com/install-docker/$DOCKER_VERSION.sh | sh
  sudo usermod -aG docker $USERNAME

  echo "Install RKE"
  sudo wget https://github.com/rancher/rke/releases/download/v$RKE_VERSION/rke_linux-amd64
  mv rke_linux-amd64 rke
  sudo chmod +x rke
  sudo mv ./rke /usr/local/bin/rke

  echo "Install make - required for beijing+ - installed via yum groupinstall Development Tools in RHEL"
  # ubuntu specific
  sudo apt-get install make -y

  sudo curl -LO https://storage.googleapis.com/kubernetes-release/release/v$KUBECTL_VERSION/bin/linux/amd64/kubectl
  sudo chmod +x ./kubectl
  sudo mv ./kubectl /usr/local/bin/kubectl
  sudo mkdir ~/.kube
  wget http://storage.googleapis.com/kubernetes-helm/helm-v${HELM_VERSION}-linux-amd64.tar.gz
  sudo tar -zxvf helm-v${HELM_VERSION}-linux-amd64.tar.gz
  sudo mv linux-amd64/helm /usr/local/bin/helm

  echo "Bringing RKE up - using supplied cluster.yml"
  sudo rke up
  echo "wait 2 extra min for the cluster"
  sleep 60
  echo "1 more min"
  sleep 60
  echo "copy kube_config_cluter.yaml generated - to ~/.kube/config"
  sudo cp kube_config_cluster.yml ~/.kube/config
  # avoid using sudo for kubectl
  sudo chmod 777 ~/.kube/config
  echo "Verify all pods up on the kubernetes system - will return localhost:8080 until a host is added"
  echo "kubectl get pods --all-namespaces"
  kubectl get pods --all-namespaces
  echo "install tiller/helm"
  kubectl -n kube-system create serviceaccount tiller
  kubectl create clusterrolebinding tiller --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
  helm init --service-account tiller
  kubectl -n kube-system  rollout status deploy/tiller-deploy
  echo "upgrade server side of helm in kubernetes"
  if [ "$USERNAME" == "root" ]; then
    helm version
  else
    sudo helm version
  fi
  echo "sleep 30"
  sleep 30
  if [ "$USERNAME" == "root" ]; then
    helm init --upgrade
  else
    sudo helm init --upgrade
  fi
  echo "sleep 30"
  sleep 30
  echo "verify both versions are the same below"
  if [ "$USERNAME" == "root" ]; then
    helm version
  else
    sudo helm version
  fi
  echo "start helm server"
  if [ "$USERNAME" == "root" ]; then
    helm serve &
  else
    sudo helm serve &
  fi
  echo "sleep 30"
  sleep 30
  echo "add local helm repo"
  if [ "$USERNAME" == "root" ]; then
    helm repo add local http://127.0.0.1:8879
    helm repo list
  else
    sudo helm repo add local http://127.0.0.1:8879
    sudo helm repo list
  fi
  echo "To enable grafana dashboard - do this after running cd.sh which brings up onap - or you may get a 302xx port conflict"
  echo "kubectl expose -n kube-system deployment monitoring-grafana --type=LoadBalancer --name monitoring-grafana-client"
  echo "to get the nodeport for a specific VM running grafana"
  echo "kubectl get services --all-namespaces | grep graf"
  sudo docker version
  helm version
  kubectl version
  kubectl get services --all-namespaces
  kubectl get pods --all-namespaces
  echo "finished!"
}

BRANCH=
SERVER=
ENVIRON=
VALIDATE=false
USERNAME=ubuntu
SSHPATH_PREFIX=~/.ssh

while getopts ":b:s:e:u:l:k:v" PARAM; do
  case $PARAM in
    u)
      usage
      exit 1
      ;;
    b)
      BRANCH=${OPTARG}
      ;;
    e)
      ENVIRON=${OPTARG}
      ;;
    s)
      SERVER=${OPTARG}
      ;;
    l)
      USERNAME=${OPTARG}
      ;;
    k)
      SSHKEY=${OPTARG}
      ;;
    v)
      VALIDATE=${OPTARG}
      ;;
    ?)
      usage
      exit
      ;;
    esac
done

if [[ -z $BRANCH ]]; then
  usage
  exit 1
fi

install_onap $BRANCH $SERVER $ENVIRON $USERNAME $SSHPATH_PREFIX $SSHKEY $VALIDATE