#
# 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.
#

#
# Dockerfile for guacamole-client
#

# Use args for Tomcat image label to allow image builder to choose alternatives
# such as `--build-arg TOMCAT_JRE=jre8-alpine`
#

ARG TOMCAT_VERSION=8.0.20
ARG TOMCAT_JRE=jre8

# Use official maven image for the build
FROM maven:3-jdk-8 AS builder

ARG GUACAMOLE_GIT_URL=https://github.com/apache/guacamole-client.git
ARG GUACAMOLE_VERSION=latest

# Build environment variables
ENV \
    BUILD_DIR=/tmp/guacamole-docker-BUILD

# Copy source to container for sake of build
RUN \
    set -x \
    && git clone --recursive -b "${GUACAMOLE_VERSION}" "${GUACAMOLE_GIT_URL}" "${BUILD_DIR}"

# Apply patches
COPY patches/ /patches/
RUN cd "${BUILD_DIR}" \
    && set -x \
    && for patch in /patches/*.patch; do \
      echo Applying patch: $patch \
      && git apply "$patch" \
    ; done \
    && for script in /patches/*.sh; do \
        echo Running patch script: $script; \
        chmod -v +x "$script"; \
        "$script"; \
    done

# Add configuration scripts
RUN mkdir -p /opt/guacamole/
RUN cp -rv "${BUILD_DIR}/guacamole-docker/bin/" /opt/guacamole/bin/

# Run the build itself
RUN /opt/guacamole/bin/build-guacamole.sh "$BUILD_DIR" /opt/guacamole

# For the runtime image, we start with the official Tomcat distribution
FROM tomcat:${TOMCAT_VERSION}-${TOMCAT_JRE}

# This is where the build artifacts go in the runtime image
WORKDIR /opt/guacamole

# Copy artifacts from builder image into this image
COPY --from=builder /opt/guacamole/ .

# Start Guacamole under Tomcat, listening on 0.0.0.0:8080
EXPOSE 8080
CMD ["/opt/guacamole/bin/start.sh" ]