add a common php image to base webapp, z-push and kdav on (#138)

* adapt webapp container for new php base image
* clean out webapp dockerfile
* complete switch of webapp to php-fpm
* update config in web container
* update readme
* remove logging config from docker-compose.yml
* add php container to tagging and publishing

php/Dockerfile

@@ -0,0 +1,79 @@
+ARG docker_repo=zokradonh
+FROM ${docker_repo}/kopano_base
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+ARG ADDITIONAL_KOPANO_PACKAGES=""
+ENV ADDITIONAL_KOPANO_PACKAGES=$ADDITIONAL_KOPANO_PACKAGES
+ARG ADDITIONAL_KOPANO_WEBAPP_PLUGINS=""
+ENV ADDITIONAL_KOPANO_WEBAPP_PLUGINS=$ADDITIONAL_KOPANO_WEBAPP_PLUGINS
+ARG DOWNLOAD_COMMUNITY_PACKAGES=1
+ENV DOWNLOAD_COMMUNITY_PACKAGES=$DOWNLOAD_COMMUNITY_PACKAGES
+ARG KOPANO_CORE_REPOSITORY_URL="file:/kopano/repo/core"
+ENV KOPANO_CORE_REPOSITORY_URL=$KOPANO_CORE_REPOSITORY_URL
+ARG KOPANO_REPOSITORY_FLAGS="trusted=yes"
+ENV KOPANO_REPOSITORY_FLAGS=$KOPANO_REPOSITORY_FLAGS
+ARG KOPANO_WEBAPP_REPOSITORY_URL="file:/kopano/repo/webapp"
+ENV KOPANO_WEBAPP_REPOSITORY_URL=$KOPANO_WEBAPP_REPOSITORY_URL
+ARG KOPANO_WEBAPP_SMIME_REPOSITORY_URL="file:/kopano/repo/smime"
+ENV KOPANO_WEBAPP_SMIME_REPOSITORY_URL=$KOPANO_WEBAPP_SMIME_REPOSITORY_URL
+ARG KOPANO_WEBAPP_MDM_REPOSITORY_URL="file:/kopano/repo/mdm"
+ENV KOPANO_WEBAPP_MDM_REPOSITORY_URL=$KOPANO_WEBAPP_MDM_REPOSITORY_URL
+ARG KOPANO_WEBAPP_FILES_REPOSITORY_URL="file:/kopano/repo/files"
+ENV KOPANO_WEBAPP_FILES_REPOSITORY_URL=$KOPANO_WEBAPP_FILES_REPOSITORY_URL
+ARG KOPANO_CORE_VERSION=newest
+ENV KOPANO_CORE_VERSION=$KOPANO_CORE_VERSION
+ARG KOPANO_WEBAPP_VERSION=newest
+ENV KOPANO_WEBAPP_VERSION=$KOPANO_WEBAPP_VERSION
+ARG KOPANO_WEBAPP_FILES_VERSION=newest
+ENV KOPANO_WEBAPP_FILES_VERSION=$KOPANO_WEBAPP_FILES_VERSION
+ARG KOPANO_WEBAPP_MDM_VERSION=newest
+ENV KOPANO_WEBAPP_MDM_VERSION=$KOPANO_WEBAPP_MDM_VERSION
+ARG KOPANO_WEBAPP_SMIME_VERSION=newest
+ENV KOPANO_WEBAPP_SMIME_VERSION=$KOPANO_WEBAPP_SMIME_VERSION
+ARG RELEASE_KEY_DOWNLOAD=0
+ENV RELEASE_KEY_DOWNLOAD=$RELEASE_KEY_DOWNLOAD
+
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
+# add install common php dependencies
+# hadolint ignore=SC2129
+RUN \
+    # community download and package as apt source repository
+    . /kopano/helper/create-kopano-repo.sh && \
+    if [ ${DOWNLOAD_COMMUNITY_PACKAGES} -eq 1 ]; then \
+        dl_and_package_community "core"; \
+    fi; \
+    echo "deb [${KOPANO_REPOSITORY_FLAGS}] ${KOPANO_CORE_REPOSITORY_URL} ./" > /etc/apt/sources.list.d/kopano.list; \
+    # save kopano version
+    echo "core-${KOPANO_CORE_VERSION}" > /kopano/buildversion; \
+    # install apt keys if supported kopano
+    if [ ${RELEASE_KEY_DOWNLOAD} -eq 1 ]; then \
+        curl -s -S -o - "${KOPANO_CORE_REPOSITORY_URL}/Release.key" | apt-key add -; \
+    fi; \
+    # install
+    set -x && \
+    apt-get update && apt-get install -y --no-install-recommends \
+        kopano-kwebd \
+        php-fpm \
+        crudini \
+        ca-certificates \
+        ${ADDITIONAL_KOPANO_PACKAGES} \
+    && rm -rf /var/cache/apt /var/lib/apt/lists
+
+# configure basics
+RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
+    sed -i -e 's/# de_DE.UTF-8 UTF-8/de_DE.UTF-8 UTF-8/' /etc/locale.gen && \
+    dpkg-reconfigure --frontend=noninteractive locales && \
+    update-locale LANG=en_US.UTF-8 && \
+    # configure php-fpm
+    mkdir -p /run/php && chown www-data:www-data /run/php && \
+    crudini --set /etc/php/7.0/fpm/php.ini PHP upload_max_filesize 500M && \
+    crudini --set /etc/php/7.0/fpm/php.ini PHP post_max_size 500M && \
+    crudini --set /etc/php/7.0/fpm/php.ini PHP max_input_vars 1800 && \
+    crudini --set /etc/php/7.0/fpm/php.ini Session session.save_path /run/sessions
+
+EXPOSE 9080/tcp
+
+COPY start-helper.sh /kopano/start-helper.sh
+COPY kweb.cfg /etc/kweb.cfg