added Dockerfile.postgresql & added dockerhub build hooks

Dockerfile.postgresql

@@ -0,0 +1,14 @@
+FROM postgresql
+MAINTAINER André Bauer <monotek23@gmail.com>
+
+LABEL org.label-schema.build-date="$BUILD_DATE" \
+      org.label-schema.name="Zammad" \
+      org.label-schema.license="AGPL-3.0" \
+      org.label-schema.description="Docker container for Zammad - postgresql" \
+      org.label-schema.url="https://zammad.org" \
+      org.label-schema.vcs-url="https://github.com/zammad/zammad" \
+      org.label-schema.vcs-type="Git" \
+      org.label-schema.vendor="Zammad" \
+      org.label-schema.schema-version="1.0" \
+      org.label-schema.docker.cmd="sysctl -w vm.max_map_count=262144;docker-compose up --build"
+

docker-compose.yml

@@ -32,7 +32,9 @@ services:
     volumes:
       - data-zammad:/home/zammad
 volumes:
-  data-zammad:
+  data-postgresql:
     driver: local
   data-ruby:
     driver: local
+  data-zammad:
+    driver: local

hooks/build

@@ -0,0 +1,14 @@
+#!/bin/bash
+#
+# build hook for dockerhubs autobuild feature
+# builds stable and develop images from only one branch
+#
+
+. "hooks/config"
+
+for DOCKER_IMAGE in ${DOCKER_IMAGES}; do
+
+    echo "Build Zammad Docker image ${DOCKER_IMAGE} for DockerHubs ${DOCKER_REPO}:${DOCKER_IMAGE} repo"
+    docker build --build-arg PACKAGER_REPO=${PACKAGER_REPO} --build-arg BUILD_DATE=$(date -u +”%Y-%m-%dT%H:%M:%SZ”) -t ${DOCKER_REPO}:${DOCKER_IMAGE} Dockerfile.${DOCKER_IMAGE}
+
+done

hooks/config

@@ -0,0 +1,7 @@
+#!/bin/bash
+#
+# build hooks
+#
+
+DOCKER_IMAGES="elasticsearch nginx postgresql zammad"
+DOCKER_REPO="monotek/zammad-docker-compose"

hooks/push

@@ -0,0 +1,14 @@
+#!/bin/bash
+#
+# build hook for dockerhubs autobuild feature
+#
+
+. "hooks/config"
+
+for DOCKER_IMAGE in ${DOCKER_IMAGES}; do
+
+    echo "Push Zammad Docker image ${DOCKER_IMAGE} to DockerHubs ${DOCKER_REPO}:${DOCKER_IMAGE} repo"
+    docker push ${DOCKER_REPO}:${DOCKER_IMAGE}
+
+done
+