lcgdocker

#!/bin/bash -xe

# Script to start LCG docker containers
#
#     $ lcgdocker docker-image [working-space-area]
#

if test "x$1" = "x" ; then
    echo "The name of a docker image is required!"
    echo "Examples: slc6, centos7, ubuntu16, ubuntu18, fedora31, centos8"
    exit 1
fi
DOCKER_IMAGE=$1
echo "Docker image will be: $DOCKER_IMAGE"

pull="yes"
FULL_IMAGE_PATH=gitlab-registry.cern.ch/sft/docker/$DOCKER_IMAGE

if test "x$2" = "xlocal" ; then
    wrksp=$3
    FULL_IMAGE_PATH=$DOCKER_IMAGE
    pull="no"
else
    wrksp=$2
fi
if test "x$wrksp" = "x" || test ! -d $wrksp ; then
   wrksp="/build/$USER"
   if test ! -d $wrksp ; then
      wrksp="/tmp/$USER"
      mkdir -p $wrksp
   fi
fi
WORKSPACE="$wrksp/jenkins/workspace"
mkdir -p $WORKSPACE/docker
echo "Using WORKSPACE_HOST= $WORKSPACE"

export WORKSPACE_HOST=$WORKSPACE
export WORKSPACE='/workspace'

touch $WORKSPACE_HOST/controlfile

# Prepare number of cpus to use in the container
TOTALCPU=`nproc --all`
CONTAINERS_LIMIT=$(($EXECUTOR_NUMBER+1))

if [ -z $DOCKER_CPUS ]; then
	DOCKER_CPUS=$(($TOTALCPU/$CONTAINERS_LIMIT))
fi

USER_ID=$(id $(whoami) -u)
GROUP_ID=$(id $(whoami) -g)

# Pull image from gitlab
if test "x$pull" = "xyes" ; then
   docker pull $FULL_IMAGE_PATH
fi

if [ -e $WORKSPACE_HOST/docker ]; then
    rm -rf $WORKSPACE_HOST/docker
fi
mkdir -p $WORKSPACE_HOST/docker

docker run -it --rm --privileged -e WORKSPACE=$WORKSPACE \
                    -e USER=sftnight \
                    -e SHELL=$SHELL \
                    -u sftnight \
                    -v /ccache:/ccache \
                    -v /ec/conf:/ec/conf \
                    -v /cvmfs:/cvmfs \
                    -v /eos:/eos \
		    $FULL_IMAGE_PATH bash