update README, add 'openssh-clients' to client container for ssh command + use latest cvmfs-config-eessi RPM

Author: boegel

…rfile.EESSI-client-pilot-centos7-2020.08 …rfile.EESSI-client-pilot-centos7-2020.09containers/Dockerfile.EESSI-client-pilot-centos7-2020.08 renamed to containers/Dockerfile.EESSI-client-pilot-centos7-2020.09 containers/Dockerfile.EESSI-client-pilot-centos7-2020.08 renamed to containers/Dockerfile.EESSI-client-pilot-centos7-2020.09

@@ -1,10 +1,9 @@
 FROM docker.io/library/centos:7.8.2003
 
-COPY cvmfs-config-eessi-0.1-1.noarch.rpm /root/cvmfs-config-eessi-0.1-1.noarch.rpm
-
 RUN yum install -y http://cvmrepo.web.cern.ch/cvmrepo/yum/cvmfs-release-latest.noarch.rpm \
- && yum install -y cvmfs cvmfs-config-default cvmfs-fuse3 sudo vim \
- && yum install -y /root/cvmfs-config-eessi-0.1-1.noarch.rpm
+ && yum install -y cvmfs cvmfs-config-default cvmfs-fuse3 sudo vim openssh-clients \
+ && curl -OL https://github.com/EESSI/filesystem-layer/releases/download/v0.2.1/cvmfs-config-eessi-0.2.1-1.noarch.rpm \
+ && yum install -y cvmfs-config-eessi-0.2.1-1.noarch.rpm
 
 RUN echo 'CVMFS_QUOTA_LIMIT=10000' > /etc/cvmfs/default.local \
   && echo 'CVMFS_HTTP_PROXY="DIRECT"' >> /etc/cvmfs/default.local

containers/README

@@ -0,0 +1,32 @@
+# Containers for EESSI
+
+This directory contains recipes for containers that are useful in the scope of the EESSI project.
+
+## Client container
+
+Container to provide easy access to EESSI pilot repository,
+see https://hub.docker.com/repository/docker/eessi/client-pilot and https://eessi.github.io/docs/pilot .
+
+### Build container
+
+```shell
+export EESSI_PILOT_VERSION=2020.09
+docker build --no-cache -f Dockerfile.EESSI-client-pilot-centos7-${EESSI_PILOT_VERSION} -t eessi/client-pilot:centos7-${EESSI_PILOT_VERSION} .
+```
+
+### Push to Docker Hub (requires credentials)
+
+```
+docker push eessi/client-pilot:centos7-${EESSI_PILOT_VERSION}
+```
+
+### Run (using Singularity)
+
+```
+mkdir -p /tmp/$USER/{var-lib-cvmfs,var-run-cvmfs,home}
+export SINGULARITY_BIND="/tmp/$USER/var-run-cvmfs:/var/run/cvmfs,/tmp/$USER/var-lib-cvmfs:/var/lib/cvmfs"
+export SINGULARITY_HOME="/tmp/$USER/home:/home/$USER"
+export EESSI_CONFIG="container:cvmfs2 cvmfs-config.eessi-hpc.org /cvmfs/cvmfs-config.eessi-hpc.org"
+export EESSI_PILOT="container:cvmfs2 pilot.eessi-hpc.org /cvmfs/pilot.eessi-hpc.org"
+singularity shell --fusemount "$EESSI_CONFIG" --fusemount "$EESSI_PILOT" docker://eessi/client-pilot:centos7-${EESSI_PILOT_VERSION}
+```