add php-fpm container

Signed-off-by: Gong Sophia <sophia.gong@intel.com>

.travis.yml

@@ -26,6 +26,7 @@ env:
   - DOCKERFILE_DIR=rabbitmq
   - DOCKERFILE_DIR=perl
   - DOCKERFILE_DIR=php
+  - DOCKERFILE_DIR=php-fpm
   - DOCKERFILE_DIR=postgres
   - DOCKERFILE_DIR=python
   - DOCKERFILE_DIR=redis

php-fpm/Dockerfile

@@ -0,0 +1,71 @@
+FROM clearlinux:latest AS builder
+MAINTAINER sophia.gong@intel.com
+
+ARG swupd_args
+# Move to latest Clear Linux release to ensure
+# that the swupd command line arguments are
+# correct
+RUN swupd update --no-boot-update $swupd_args
+
+# Grab os-release info from the minimal base image so
+# that the new content matches the exact OS version
+COPY --from=clearlinux/os-core:latest /usr/lib/os-release /
+
+# Install additional content in a target directory
+# using the os version from the minimal base
+RUN source /os-release && \
+    mkdir /install_root \
+    && swupd os-install -V ${VERSION_ID} \
+    --path /install_root --statedir /swupd-state \
+    --bundles=os-core-update,php-basic --no-scripts
+
+# For some Host OS configuration with redirect_dir on,
+# extra data are saved on the upper layer when the same
+# file exists on different layers. To minimize docker
+# image size, remove the overlapped files before copy.
+RUN mkdir /os_core_install
+COPY --from=clearlinux/os-core:latest / /os_core_install/
+RUN cd / && \
+    find os_core_install | sed -e 's/os_core_install/install_root/' | xargs rm -d || true
+
+
+FROM clearlinux/os-core:latest
+
+COPY --from=builder /install_root /
+
+RUN set -ex \
+	mkdir -p /var/www/html \
+	&& cd /usr/share/defaults/php \
+	&& { \
+		echo '[global]'; \
+		echo 'error_log = /proc/self/fd/2'; \
+		echo; echo '; https://github.com/docker-library/php/pull/725#issuecomment-443540114'; echo 'log_limit = 8192'; \
+		echo; \
+		echo '[www]'; \
+		echo '; if we send this to /proc/self/fd/1, it never appears'; \
+		echo 'access.log = /proc/self/fd/2'; \
+		echo; \
+		echo 'clear_env = no'; \
+		echo; \
+		echo '; Ensure worker stdout and stderr are sent to the main error log.'; \
+		echo 'catch_workers_output = yes'; \
+		echo 'decorate_workers_output = no'; \
+	} | tee php-fpm.d/docker.conf \
+	&& { \
+		echo '[global]'; \
+		echo 'daemonize = no'; \
+		echo; \
+		echo '[www]'; \
+		echo 'listen = 9000'; \
+	} | tee php-fpm.d/zz-docker.conf
+
+WORKDIR /var/www/html
+
+COPY docker-php-entrypoint /usr/local/bin/
+RUN chmod +x /usr/local/bin/docker-php-entrypoint
+ENTRYPOINT ["docker-php-entrypoint"]
+
+STOPSIGNAL SIGQUIT
+
+EXPOSE 9000
+CMD ["php-fpm"]

php-fpm/README.md

@@ -0,0 +1,37 @@
+php-fpm
+==========
+This provides a Clear Linux* php-fpm instance.
+
+Build
+-----
+```
+docker build -t clearlinux/php-fpm .
+```
+
+Or just pull it from Dockerhub
+---------------------------
+```
+docker pull clearlinux/php-fpm
+```
+
+start a php-fpm instance
+-----------------------
+```
+docker run --name some-php-fpm clearlinux/php-fpm
+```
+
+Test
+-----------------------
+```
+docker exec -it some-php-fpm bash
+php-fpm -t
+```
+
+More typical, php-fpm works with nginx, mariadb, for example in wordpress use case. For details, please refer to clearlinux wordpress micro service. 
+
+
+Extra Build ARGs
+----------------
+- ``swupd_args`` Specifies [SWUPD](https://github.com/clearlinux/swupd-client/blob/master/docs/swupd.1.rst#options) flags
+
+Default build args in Docker are on: https://docs.docker.com/engine/reference/builder/#arg

php-fpm/docker-php-entrypoint

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- php-fpm "$@"
+fi
+
+exec "$@"