gecko/testing/docker/build.sh

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#! /bin/bash -e
# This file is a wrapper around docker build with specific concerns around image
# versions and registry deployment... It also attempts to detect any potential
# missing dependencies and warns you about them.
gecko_root="$( cd "$( dirname "${BASH_SOURCE[0]}" )/../.." && pwd )"
usage() {
echo "Build a docker image (and tag it)"
echo
echo "$0 <image-name>"
echo
echo " Images are defined in testing/docker/<image-name>."
echo " For more see: $PWD/README.md"
echo
}
usage_err() {
echo $1
echo
usage
exit 1
}
find_registry() {
local reg="$1/REGISTRY"
if [ -f $reg ];
then
echo $folder
return
fi
}
build() {
local image_name=$1
local folder="$gecko_root/testing/docker/$image_name"
local folder_reg="$folder/REGISTRY"
local folder_ver="$folder/VERSION"
local could_deploy=false
if [ "$image_name" == "" ];
then
usage
return
fi
test -d "$folder" || usage_err "Unknown image: $image_name"
# Assume that if an image context directory does not contain a VERSION file then
# it is not suitable for deploying. Default to using 'latest' as the tag and
# warn the user at the end.
if [ ! -f $folder_ver ]; then
echo "This image does not contain a VERSION file. Will use 'latest' as the image version"
local tag="$image_name:latest"
else
local version=$(cat $folder_ver)
test -n "$version" || usage_err "$folder_ver is empty aborting..."
# Fallback to default registry if one is not in the folder...
if [ ! -f "$folder_reg" ]; then
folder_reg=$PWD/REGISTRY
fi
local registry=$(cat $folder_reg)
test -n "$registry" || usage_err "$folder_reg is empty aborting..."
local tag="$registry/$image_name:$version"
local could_deploy=true
fi
if [ -f $folder/build.sh ]; then
shift
$folder/build.sh -t $tag $* || exit 1
else
# use --no-cache so that we always get the latest updates from yum
# and use the latest version of system-setup.sh
( cd $folder/.. && docker build --no-cache -t $tag $image_name ) || exit 1
fi
echo "Success built $image_name and tagged with $tag"
if [ "$could_deploy" = true ]; then
echo "If deploying now you can run 'docker push $tag'"
else
echo "*****************************************************************"
echo "WARNING: No VERSION file was found in the image directory."
echo "Image has not been prepared for deploying at this time."
echo "However, the image can be run locally. To prepare to "
echo "push to a user account on a docker registry, tag the image "
echo "by running 'docker tag $tag [REGISTRYHOST/][USERNAME/]NAME[:TAG]"
echo "prior to running 'docker push'."
echo "*****************************************************************"
fi
}
if ! which docker > /dev/null; then
echo "Docker must be installed read installation instructions at docker.com"
echo
usage
exit 1
fi
# TODO: In the future we should check minimum docker version it does matter.
if ! docker version > /dev/null;
then
echo "Docker server is unresponsive run 'docker ps' and check that docker is"
echo "running"
echo
usage
exit 1
fi
build $*