streaming-pacman/start.sh
#!/bin/bash
#set -e

PRJ_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
UTILS_DIR="${PRJ_DIR}/utils"
TMP_FOLDER="${PRJ_DIR}/tmp"
TFS_PATH="${PRJ_DIR}/terraform/aws"
STATE_FILE_PATH="${TFS_PATH}/terraform.tfstate"
LOGS_FOLDER="${PRJ_DIR}/logs"
LOG_FILE_PATH="${LOGS_FOLDER}/start.log"

export EXAMPLE="streaming-pacman"


function init_vars_from_tf_output() {
    ENVIRONMENT_ID=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".environment_id.value" -r)
    KAFKA_CLUSTER_ID=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".confluent_kafka_cluster_id.value" -r)
    KSQLDB_CLUSTER_ID=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".confluent_ksql_cluster_id.value" -r)
    KSQLDB_ENDPOINT=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".confluent_ksql_cluster_api_endpoint.value" -r)
    KSQLDB_CLUSTER_SERVICE_ACCOUNT_ID=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".confluent_ksql_cluster_service_account_id.value" -r)
    KSQLDB_CLUSTER_API_KEY=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".confluent_ksql_cluster_api_key.value" -r)
    KSQLDB_CLUSTER_API_SECRET=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".confluent_ksql_cluster_api_secret.value" -r)
    PACMAN_URL=$(terraform output -json -state=${STATE_FILE_PATH} | jq ".Pacman.value" -r)
    

}

function create_infra_with_tf (){

    # DELTA_CONFIGS_DIR=delta_configs
    # source $DELTA_CONFIGS_DIR/env.delta
    
    # create_tfvars_file
    cd $TFS_PATH
    terraform init
    terraform apply --auto-approve

}

function check_mvn() {
  if [[ $(type mvn 2>&1) =~ "not found" ]]; then
    echo "'mvn' is not found. Install 'mvn' and try again"
    exit 1
  fi

  return 0
}


function validate_pre_reqs {

    ccloud::validate_version_cli 2.38.0 \
        && print_pass "confluent CLI version ok" \
        || exit 1

    ccloud::validate_logged_in_cli \
        && print_pass "logged into confluent CLI" \
        || exit 1

    check_jq \
        && print_pass "jq found" \
        || exit 1

    check_mvn \
        && print_pass "mvn found" \
        || exit 1
}

function create_ksqldb_app {

    init_vars_from_tf_output

    MAX_WAIT=720
    echo "Waiting up to $MAX_WAIT seconds for Confluent Cloud ksqlDB cluster $KSQLDB_ENDPOINT to be UP"

    confluent environment use $ENVIRONMENT_ID
    
    #retry $MAX_WAIT ccloud::validate_ccloud_ksqldb_endpoint_ready $KSQLDB_ENDPOINT || exit 1

    #################################################################
    # Confluent Cloud ksqlDB application
    #################################################################
    KSQLDB_BASIC_AUTH_USER_INFO="${KSQLDB_CLUSTER_API_KEY}:${KSQLDB_CLUSTER_API_SECRET}"

    cd $PRJ_DIR

    export KSQLDB_ENDPOINT=$KSQLDB_ENDPOINT
    export KSQLDB_BASIC_AUTH_USER_INFO=$KSQLDB_BASIC_AUTH_USER_INFO
    ./create_ksqldb_app.sh || exit 1

}

function start_demo {

    # Source demo-specific configurations
    source $PRJ_DIR/config/demo.cfg

    source $UTILS_DIR/demo_helper.sh 

    validate_pre_reqs 

    ccloud::prompt_continue_ccloud_demo || exit 1 

    create_infra_with_tf

    create_ksqldb_app

    welcome_screen

}


#http://patorjk.com/software/taag/#p=display&f=ANSI%20Regular&t=pacman%20demo%0A%20Confluent%20
function welcome_screen {

    echo "                                                                                                  ";
    echo "                                                                                                  ";   
    echo " ██████   █████   ██████ ███    ███  █████  ███    ██     ██████  ███████ ███    ███  ██████      ";
    echo " ██   ██ ██   ██ ██      ████  ████ ██   ██ ████   ██     ██   ██ ██      ████  ████ ██    ██     ";
    echo " ██████  ███████ ██      ██ ████ ██ ███████ ██ ██  ██     ██   ██ █████   ██ ████ ██ ██    ██     ";
    echo " ██      ██   ██ ██      ██  ██  ██ ██   ██ ██  ██ ██     ██   ██ ██      ██  ██  ██ ██    ██     ";
    echo " ██      ██   ██  ██████ ██      ██ ██   ██ ██   ████     ██████  ███████ ██      ██  ██████      ";
    echo "                                                                                                  ";    
    echo "                                                                                                  ";
    echo "      ██████  ██████  ███    ██ ███████ ██      ██    ██ ███████ ███    ██ ████████               ";
    echo "     ██      ██    ██ ████   ██ ██      ██      ██    ██ ██      ████   ██    ██                  ";  
    echo "     ██      ██    ██ ██ ██  ██ █████   ██      ██    ██ █████   ██ ██  ██    ██                  ";
    echo "     ██      ██    ██ ██  ██ ██ ██      ██      ██    ██ ██      ██  ██ ██    ██                  ";    
    echo "      ██████  ██████  ██   ████ ██      ███████  ██████  ███████ ██   ████    ██                  ";
    echo "                                                                                                  ";
    echo "                                                                                                  ";
    echo "                               ================================================.                  ";
    echo "                                    .-.   .-.     .--.                         |                  ";
    echo "                                   | OO| | OO|   / _.-' .-.   .-.  .-.   .''.  |                  ";
    echo "                                   |   | |   |   \  '-. '-'   '-'  '-'   '..'  |                  ";
    echo "                                   '^^^' '^^^'    '--'                         |                  ";
    echo "                               ===============.  .-.  .================.  .-.  |                  ";
    echo "                                              | |   | |                |  '-'  |                  ";
    echo "                                              | |   | |                |       |                  ";
    echo "                                              | ':-:' |                |  .-.  |                  ";
    echo "                               l42            |  '-'  |                |  '-'  |                  ";
    echo "                               ==============='       '================'       |                  ";                                                                      
    echo 
    echo "**************************************************************************************************";
    echo 
    echo 
    echo "Handy links: "
    echo " - PLAY HERE --> ${PACMAN_URL} ";
    echo
    echo "Cloud resources are provisioned and accruing charges. To destroy this demo and associated resources run ->"
    echo "    ./stop.sh"
    echo
}

mkdir $LOGS_FOLDER
start_demo 2>&1 | tee -a $LOG_FILE_PATH