manage

#!/bin/bash
export MSYS_NO_PATHCONV=1
# getDockerHost; for details refer to https://github.com/bcgov/DITP-DevOps/tree/main/code/snippets#getdockerhost
. /dev/stdin <<<"$(cat <(curl -s --raw https://raw.githubusercontent.com/bcgov/DITP-DevOps/main/code/snippets/getDockerHost))" 
export DOCKERHOST=$(getDockerHost)
set -e

function echoError (){
  _msg=${1}
  _red='\e[31m'
  _nc='\e[0m' # No Color
  echo -e "${_red}${_msg}${_nc}"
}

function echoWarning (){
  _msg=${1}
  _yellow='\e[33m'
  _nc='\e[0m' # No Color
  echo -e "${_yellow}${_msg}${_nc}"
}

function isInstalled () {
  rtnVal=$(type "$1" >/dev/null 2>&1)
  rtnCd=$?
  if [ ${rtnCd} -ne 0 ]; then
    return 1
  else
    return 0
  fi
}

function isS2iInstalled () {
  S2I_EXE=s2i
  if ! isInstalled ${S2I_EXE}; then
    echoError "The ${S2I_EXE} executable is needed and not on your path."
    echoError "It can be downloaded from here: https://github.com/openshift/source-to-image/releases"
    echoError "Make sure you extract the binary and place it in a directory on your path."
    exit 1
  fi
}

function isJQInstalled () {
  JQ_EXE=jq
  if ! isInstalled ${JQ_EXE}; then
    echoError "The ${JQ_EXE} executable is required and was not found on your path."
    echoError "Installation instructions can be found here: https://stedolan.github.io/jq/download"
    echoError "Alternatively, a package manager such as Chocolatey (Windows) or Brew (Mac) can be used to install this dependecy."
    exit 1
  fi
}

function isCurlInstalled () {
  CURL_EXE=curl
  if ! isInstalled ${CURL_EXE}; then
    echoError "The ${CURL_EXE} executable is required and was not found on your path."
    echoError "If your shell of choice doesn't come with curl preinstalled, try installing it using either [Homebrew](https://brew.sh/) (MAC) or [Chocolatey](https://chocolatey.org/) (Windows)."
    exit 1
  fi
}

function isNgrokInstalled () {
  NGROK_EXE=ngrok
  if ! isInstalled ${NGROK_EXE}; then
    echoError "The ${NGROK_EXE} executable is needed and not on your path."
    echoError "It can be downloaded from here: https://ngrok.com/download"
    echoError "Alternatively, a package manager such as Chocolatey (Windows) or Brew (Mac) can be used to install this dependecy."
    exit 1
  fi
}

function checkNgrokTunnelActive () {
  if [ -z "${SITE_URL}" ]; then
    echoError "It appears that ngrok tunneling is not enabled."
    echoError "Please open another shell in the scripts folder and execute start-ngrok.sh before trying again."
    exit 1
  fi
}

function generateKey(){
  (
    _length=${1:-48}
    # Format can be `-base64` or `-hex`
    _format=${2:--base64}

    echo $(openssl rand ${_format} ${_length})
  )
}

function generateSeed(){
  (
    _prefix=${1}
    _seed=$(echo "${_prefix}$(generateKey 32)" | fold -w 32 | head -n 1 )
    _seed=$(echo -n "${_seed}")
    echo ${_seed}
  )
}

SCRIPT_HOME="$(cd "$(dirname "$0")" && pwd)"

# =================================================================================================================
# Usage:
# -----------------------------------------------------------------------------------------------------------------
usage() {
  cat <<-EOF
    
      Usage: $0 [command] [options]
    
      Commands:
    
      build - Build the docker images for the project.
              You need to do this first, since the builds require
              a combination of Docker and S2I builds.
    
      up -  Creates the application containers from the built images
            and starts the services based on the docker-compose.yml file.

            You can pass in a list of containers to start.  
            By default all containers will be started.
            
      start - Same as up

      logs - Display the logs from the docker compose run (ctrl-c to exit).

      stop - Stops the services.  This is a non-destructive process.  The volumes and containers
             are not deleted so they will be reused the next time you run start.
    
      down - Brings down the services and removes the volumes (storage) and containers.

      rm - Same as down
EOF
  exit 1
}
# -----------------------------------------------------------------------------------------------------------------
# Functions:
# -----------------------------------------------------------------------------------------------------------------
build-aries-cloudagent() {
  #
  # aries-cloudagent
  #
  echo -e "\nBuilding aries-cloudagent image ..."
  docker-compose build
}

build-email-verification-service() {
  #
  # email-verification-service
  #
  BASE_IMAGE="registry.access.redhat.com/rhscl/python-36-rhel7"
  echo -e "\nBuilding email-verification-service image from ${BASE_IMAGE}..."
  ${S2I_EXE} build \
    '../src' \
    "$BASE_IMAGE" \
    'email-verification-service'
}

buildImages() {
  build-email-verification-service
  build-aries-cloudagent
}

configureEnvironment() {

  if [ -f .env ]; then
    while read line; do
      if [[ ! "$line" =~ ^\# ]] && [[ "$line" =~ .*= ]]; then
        export ${line//[$'\r\n']}
      fi
    done <.env
  fi

  for arg in $@; do
    case "$arg" in
      *=*)
        export ${arg}
        ;;
    esac
  done
}

getStartupParams() {
  CONTAINERS=""
  ARGS="--force-recreate"

  for arg in $@; do
    case "$arg" in
    *=*)
      # Skip it
      ;;
    -*)
      ARGS+=" $arg"
      ;;
    *)
      CONTAINERS+=" $arg"
      ;;
    esac
  done

  if [ -z "$CONTAINERS" ]; then
    CONTAINERS="$DEFAULT_CONTAINERS"
  fi

  echo ${ARGS} ${CONTAINERS}
}

deleteVolumes() {
  _projectName=${COMPOSE_PROJECT_NAME:-docker}

  echo "Stopping and removing any running containers ..."
  docker-compose down -v

  _pattern="^${_projectName}_\|^docker_"
  _volumes=$(docker volume ls -q | grep ${_pattern})

  if [ ! -z "${_volumes}" ]; then
    echo "Removing project volumes ..."
    echo ${_volumes} | xargs docker volume rm
  else
    echo "No project volumes exist."
  fi
}

toLower() {
  echo $(echo ${@} | tr '[:upper:]' '[:lower:]')
}
# =================================================================================================================

pushd ${SCRIPT_HOME} >/dev/null
COMMAND=$(toLower ${1})
shift || COMMAND=usage

case "${COMMAND}" in
start|up)
  if [ -z "$SITE_URL" ]; then
    isJQInstalled
    isCurlInstalled
    isNgrokInstalled
  
    export SITE_URL=$(${CURL_EXE} http://localhost:4040/api/tunnels | ${JQ_EXE} --raw-output '.tunnels | map(select(.name | contains("(http)"))) | .[0] | .public_url')
    checkNgrokTunnelActive
  fi

  if [ -z "${AGENT_WALLET_SEED}" ]; then
    export AGENT_WALLET_SEED=$(generateSeed indy-evs)
  fi

  _startupParams=$(getStartupParams $@)
  configureEnvironment $@
  docker-compose up -d ${_startupParams}
  docker-compose logs -f
 ;;
logs)
  configureEnvironment $@
  docker-compose logs -f
  ;;
stop)
  configureEnvironment
  docker-compose stop 
  ;;
rm|down)
  unset AGENT_WALLET_SEED 
  configureEnvironment
  docker-compose down
  deleteVolumes
  ;;
build)
  isS2iInstalled
  _startupParams=$(getStartupParams $@)
  configureEnvironment $@
  case "$@" in
    aries-cloudagent)
      build-aries-cloudagent
      ;;
    email-verification-service)
      build-email-verification-service
      ;;
    *)
      buildImages
      ;;
  esac
  ;;
*)
  usage
  ;;
esac

popd >/dev/null