transition to all versions numbers in labels (#175)

* update supercronic to the latest release
* update tagging for base
* fix version tag for core
* put versions for all containers into labels instead
* define vcf_ref once
* remove cache-from as caches will be invalidated early on because of passing the git ref early on
* do not rebuild when publishing
* do not rebuild when publishing
* reduce layers required for env assignment
* pull newer base images for kdav, scheduler and ssl if available
* alsp publish tag for ldap containers
* fix publishing of ssl container

base/Dockerfile

@@ -1,17 +1,33 @@
 FROM debian:stretch
 
-LABEL maintainer=az@zok.xyz \
-      version="2.0"
+ARG VCS_REF
+ARG ADDITIONAL_KOPANO_PACKAGES=""
+ARG DOWNLOAD_COMMUNITY_PACKAGES=1
+ARG KOPANO_CORE_REPOSITORY_URL="file:/kopano/repo/core"
+ARG KOPANO_CORE_VERSION=newest
+ARG KOPANO_REPOSITORY_FLAGS="trusted=yes"
+ARG RELEASE_KEY_DOWNLOAD=0
+ARG DEBIAN_FRONTEND=noninteractive
 
-ENV BASE_VERSION=1.0
+ENV BASE_VERSION=1.1.0
+
+LABEL maintainer=az@zok.xyz \
+    org.label-schema.name="Kopano base container" \
+    org.label-schema.description="Base image for containers running the Kopano groupware stack" \
+    org.label-schema.url="https://kopano.io" \
+    org.label-schema.vcs-ref=$VCS_REF \
+    org.label-schema.vcs-url="https://github.com/zokradonh/kopano-docker" \
+    org.label-schema.version=$BASE_VERSION \
+    org.label-schema.schema-version="1.0"
+
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
 RUN mkdir -p /kopano/repo /kopano/data /kopano/helper /kopano/path
 WORKDIR /kopano/repo
 
-ARG DEBIAN_FRONTEND=noninteractive
-
 # install basics
 # TODO require python3 or python3-minimal?
+# TODO install apt keys if supported kopano (instead of in core, php, meet, ...)
 # hadolint ignore=DL3005
 RUN apt-get update && \
     apt-get upgrade -y && \
@@ -34,20 +50,11 @@ RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
     dpkg-reconfigure --frontend=noninteractive locales && \
     update-locale LANG=en_US.UTF-8
 
-SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 ENV DOCKERIZE_VERSION v0.6.1
 RUN curl -L https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz | tar xzvf - -C /usr/local/bin
 
-ARG ADDITIONAL_KOPANO_PACKAGES=""
-ARG DOWNLOAD_COMMUNITY_PACKAGES=1
-ARG KOPANO_CORE_REPOSITORY_URL="file:/kopano/repo/core"
-ARG KOPANO_CORE_VERSION=newest
-ARG KOPANO_REPOSITORY_FLAGS="trusted=yes"
-ARG RELEASE_KEY_DOWNLOAD=0
-
 # get common utilities
 COPY create-kopano-repo.sh /kopano/helper/
 COPY kcconf.py /kopano/
-RUN echo $BASE_VERSION > /kopano/buildversion
 
 SHELL [ "/bin/bash", "-c"]