bash devops snippets

ask_docker_compose_env_vars.sh

for line in $(cat docker-compose-integration-tests.yml | tr ' ' '\n' | sort -u | grep -Po '\${.+}' )
do
    var="${line/\$/""}"
    var="${var/\{/""}"
    var="${var/\}/""}"
    var=$(echo "$var" | cut -d ":" -f 1 | xargs)
    if [[ -z "${!var}" ]]; then
        echo "Enter $var value:"  && read _value
        export $var=$_value
        echo "$var=$_value" >>.env
    fi
done

download_env_variables.sh

function download_env_variables {

 echo_log ""
 echo_log "##### Starting to download environment variables #####"
 http_response=$(curl -s -o env_variables -w "%{http_code}" --user ${USER}:${PASSWORD} ${VARIABLES_MANAGER_SERVICE_URL})

 echo_log "## status:  $http_response ##"
 if [ $http_response == "200" ]; then
    cp env_variables /env/
    echo_log "## Exporting Environment Variables ##"
    source /env/env_variables
 else

    echo_log "## New Environment Variables could not be obtained ##"

    if [ -e /env/env_variables ]; then
       echo_log "## Exporting old env variables ##"
       source /env/env_variables
    else
       echo_log "## Environment file not found in : /env/env_variables ##"
       exit 1
    fi
 fi

}

filter_java_env_and_export.sh

function export_java_env {
  java_environments=""
  echo_log "## Exporting Java Environment Variables ##"

  while IFS='=' read -r name value ; do
    if [[ $name == *'JAVA_'* ]] && [[ $name != "JAVA_HOME" ]] && [[ $name != "JAVA_VERSION" ]]; then
      java_environments="$java_environments  ${!name} ";
    fi
  done < <(env)
  export CATALINA_OPTS="$java_environments"

}