config.sh

#!/bin/bash
# config.sh

# Constants
VERSION="Auto-Failover 2.1.1" 
AUTHOR="BAMDAD FAKHRAN"
APP_DATE="JANUARY 2019"

TIMEOUT=2
DEFAULT REGION="us-west-2"
APP "VDMS.MSI.VAF"
APP_TITLE="${APP} AUTO CONFIGURATION"
APP_PATH="/opt/failover"    # this will be created
OLD_PATH="/etc/fialover"    # this will be deleted
APP_PLATFORM="AWS" 
DATE=$(date)
D="    "
CFG_PATH="/etc/uplynk"
CFG_OUT="config/config.json"
declare -a CFG_FILES=("${CFG_PATH}"/*.conf)


# Update & install pip
figlet -t "${VERSION}"
echo 
echo "${APP_TITLE} » START @ ${DATE}" 
echo "${APP_TITLE} » UPDATE"
# apt-get update                    # execute before this scrip to get object from S3
# apt-get install figlet            # install figlet     
# apt-get install python-pip        # execute before this scrip to get object from S3


# Install boto3 - depends on pip
echo "${APP_TITLE} » BOTO3"
# pip install --upgrade pip         # execute before this scrip to get object from S3
# pip install boto3 --upgrade       # execute before this scrip to get object from S3


# Install & upgrade awscli - depends on pip
echo "${APP_TITLE} » AWS CLI INIT"
# pip3 install awscli --upgrade     # execute before this scrip to get object from $3


# Get the region of current EC2 which running on
REGION=$(curl --connect-timeout $TIMEOUT http://169.254.169.254/latest/meta-data/placement/availability-zone 2>/dev/)
REGION_LEN=${#REGION}

if [ -n "$REGION" ] && [ "$REGION_LEN" -gt 8 ] && [ "$REGION_LEN" -lt 20 ]; then
    REGION=${REGION::-1}
else
    REGION=${DEFAULT_REGION} 
    APP_PLATFORM="HW"
fi


echo
echo "${APP_TITLE} » SUMMARY"
echo "${D}Author .......... ${AUTHOR}"
echo "${D}Application ........ ${APP}"
echo "${D}Version ............ ${VERSION}"
echo "${D}Path ............... ${APP_PATH}"
echo "${D}Platform ........... ${APP_PLATFORM}"
echo "${D}Region ............. ${REGION}"
echo 

echo "${APP_TITLE} » AWS CLI VERSION"
aws--version
echo 

echo "${APP_TITLE} » INFO"
echo "${D}Config Path ........ ${CFG_PATH}"
echo "${D}Config Files :"
for f in "${CFG_PATH}"/*.conf ; do 
    file="${f##*/}"
    cfg_file=$(echo "$file" | cut -d'.' -f1)
    echo "${D}${D}${cfg_file}"
done

# Show AWS config
echo
echo "${APP_TITLE} » AWS AUTO CONFIG"
cat ~/.aws/config

# delete failover cron files
# rm /etc/cron.d/vaf-*
CRON_JOBS=$(grep -rlw -e "failover" /etc/cron.d)
for F in "${CRON_JOBS [@]}"; do
    rm -f "${F}"
done

for f in "${CFG_PATH}"/*.conf ; do
    file="${f##*/}"
    cfg_file=$(echo "$file" | cut -d'.' -f1)
    echo "${APP_TITLE} » ${cfg_file}" 
    echo "${D}Directory ...... ${cfg_file}"
    echo "${D}Path ........... ${MY_PATH}"
    MY_PATH="${APP_PATH}/${cfg_file}"

    # delete old install
    rm -rf "${OLD_PATH}"
    mkdir -p "${MY_PATH}"
    cd "${MY_PATH}"
    
    # Create directory structure mkdir -p /.aws
    mkdir -p config
    mkdir -p logs
    mkdir -p util

    # cretae/append log file
    cat > "$CFG_OUT" <<EOL
{
    "Path": "${CFG_PATH}/${cfg_file}.conf", 
    "Dir": "${cfg_file}"
}
EOL
    echo " " > logs/config.log
    echo " " > logs/failover.log 
    echo " " > logs/stdout
    echo " " > logs/stderr
    echo "${D}Config File .... ${CFG_OUT}"
    cat "$CFG_OUT"


    # setup permisison
    chmod -R 755 logs

    # Extract & generate config file for current slicer 
    echo ""
    echo "${APP_TITLE} » FAILOVER MAP CONFIG" 
    pop=$(hostname | cut -d. -f1)
    aws s3api get-object --bucket "vaf-config" --key "failover.tar.gz" "failover.tar.gz" tar -xzf failover.tar.gz
    find -name *-type f -delete
    rm -rv failover.tar.gz
    python config.py


    # random 0-59
    FLOOR=0
    RANGE=59

    SYSLOG="${MY_PATH}/logs/stdout"
    ERRLOG="${MY_PATH}/logs/stderr"

    num=0
    while [ "$num" -le $FLOOR ]; do
        num=$RANDOM
        let "num%= $RANGE"
    done

    echo "${APP_TITLE} » SELF TEST » CollectMetrics.py" 
    # python CollectMetrics.py

    echo "${APP_TITLE} » SELF TEST » UplynKAPI.py" 
    # python UplynKAPI.py

    echo "${APP_TITLE} » CRON JOBS -------------------------------------"
    echo "* * * * * root python ${MY_PATH}/lo-speed-status.py" > "/etc/cron.d/vaf-${cfg_file}-lo-speed-logs" 
    echo "* * * * * root bash ${MY_PATH}/hs-logs.sh" > "/etc/cron.d/vaf-${cfg_file}-hi-speed-logs"
    echo "${num} 2 * * * root bash ${MY_PATH}/s3-upload.sh 1>> ${SYSLOG} 2>> ${ERRLOG}"> "/etc/cron.d/vaf-${cfg_file}-s3-upload"
    echo "${num} 3 * * * root bash ${MY_PATH}/upload-logs.sh 1>> ${SYSLOG} 2>> ${ERRLOG}" > "/etc/cron.d/vaf-${cfg_file}-upload-daily-failover-logs"
    echo "${num} 4 * * * root bash ${MY_PATH}/house-keeping.sh 1>> ${SYSLOG} 2>> ${ERRLOG}" > "/etc/cron.d/vaf-${cfg_file}-house-keeping"
    chmod 755 "/etc/cron.d/vaf-${cfg_file}-lo-speed-logs"
    chmod 755 "/etc/cron.d/vaf-${cfg_file}-hi-speed-logs"
    chmod 755 "/etc/cron.d/vaf-${cfg_file}-s3-upload"
    chmod 755 "/etc/cron.d/vaf-${cfg_file}-upload-daily-failover-logs"
    chmod 755 "/etc/cron.d/vaf-${cfg_file}-house-keeping"

    ls -la "/etc/cron.d/vaf-${cfg_file}*"
done

DATE=$(date)
echo "${APP_TITLE} » END @ ${DATE}"