installer/cli/bin/commands/clean

#!/usr/bin/env bash
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
set -e
. "$STREAMPIPES_WORKDIR/bin/common"

cli_help_clean() {
  cat <<EOF
Remove all dangling StreamPipes images and created configurations/data volumes

Usage: streampipes clean [OPTIONS]

Options:
  -v, --volumes   Remove all unused StreamPipes data volumes
EOF

  exit 1
}

[ "$1" == '--help' ] || [ "$1" == '-h' ] && cli_help_clean

if [ "$#" -gt 2 ]; then
    fatal "Illegal number of arguments, see 'streampipes ${0##*/} --help'"
fi

while [[ "$#" -gt 0 ]]; do
    case $1 in
        -v|--volumes) clean_volumes=true; shift ;;
        *) fatal "Unsupported command $1, see 'streampipes ${0##*/} --help'" >&2 ;;
    esac
done

remove_dangling_images(){
  if [ "$(docker images -f dangling=true | grep "apachestreampipes")" ]; then
    info "Removing dangling StreamPipes images"
    dangling_imgs=$(docker images -f dangling=true | grep "apachestreampipes" | awk '{print $3}')
    for img in "${dangling_imgs[@]}"
    do
    	run "docker rmi $img"
    done
  else
    info "No dangling StreamPipes images found"
  fi
}

remove_unused_volumes(){
  # > /dev/null 2>&1
  if [ "$(docker volume ls --filter name=streampipes -q)" ]; then
    info "Removing StreamPipes docker volumes"
    run "docker volume rm $(docker volume ls --filter name=streampipes -q)"
  else
    info "No unused StreamPipes docker volumes found"
  fi
}

remove_docker_network(){
  if [ "$(docker network ls --filter name=spnet -q)" ]; then
    info "Removing StreamPipes docker network"
    run "docker network rm spnet" > /dev/null 2>&1
  else
    info "No StreamPipes docker network found"
  fi
}

continue_check(){

  if [ "$clean_volumes" = true ]; then
    cat << EOF
$(warning "This will remove:")
    - StreamPipes docker network
    - all unused StreamPipes data volumes
    - all dangling StreamPipes images

EOF
  else
    cat << EOF
$(warning "This will remove:")
    - StreamPipes docker network
    - all dangling StreamPipes images

EOF
  fi
  read -p "Are you sure you want to continue? [y/N]: " input

  if [[ "$input" != "y"  && "$input" != "Y" && "$input" != "yes" && "$input" != "Yes" && "$input" != "YES" ]]; then
    exit 1
  fi
}

clean_system() {
  if is_streampipes_running; then
    warning "Cannot run 'streampipes ${0##*/}' on running environment"
  else
    continue_check
    remove_dangling_images
    remove_docker_network
    if [ "$clean_volumes" = true ]; then
      remove_unused_volumes
    fi
  fi
}

clean_system