get list of docker tags (when jq is available)

Signed-off-by: Felix Bartels <felix@host-consultants.de>

Makefile

@@ -156,7 +156,7 @@ publish-web: build-web tag-web
 	docker push $(docker_repo)/kopano_web:latest
 
 publish-konnect: build-konnect tag-konnect
-	docker push $(docker_repo)/kopano_konnect:latest
+	component=konnect make publish-container
 
 publish-playground: build-playground
 	docker push $(docker_repo)/kopano_playground:latest

setup.sh

@@ -34,22 +34,69 @@ plugin_menu() {
 	[[ "$msg" ]] && echo "$msg"; :
 }
 
+docker_tag_search () {
+	set +e
+	# Display help
+	if [[ "${1}" == "" ]]; then
+		echo "Usage: docker tags repo/image"
+		echo "       docker tags image"
+		return
+	fi
+
+	# Full repo/image was supplied
+	if [[ $1 == *"/"* ]]; then
+		name=$1
+
+	# Only image was supplied, default to library/image
+	else
+		name=library/${1}
+	fi
+	#printf "Searching tags for ${name}"
+
+	# Fetch all pages, because the only endpoint supporting pagination params
+	# appears to be tags/lists, but that needs authorization
+	results=""
+	i=0
+	has_more=0
+	while [ $has_more -eq 0 ]; do
+		i=$((i+1))
+		result=$(curl "https://registry.hub.docker.com/v2/repositories/${name}/tags/?page=${i}" 2>/dev/null | jq -r '."results"[]["name"]' 2>/dev/null)
+		has_more=$?
+		if [[ ! -z "${result// }" ]]; then results="${results} ${result}"; fi
+			#printf "."
+	done
+
+	echo "$results" | xargs -n1 | sort -ru | xargs
+}
+
 if [ ! -e ./.env ]; then
 	PRINT_SETUP_SUCCESS=""
 
 	echo "Creating an .env file for you"
+	if type jq > /dev/null; then
+		echo "Available tags in https://hub.docker.com/r/zokradonh/kopano_core/: $(docker_tag_search zokradonh/kopano_core)"
+	fi
 	value_default=latest
 	read -p "Which tag do you want to use for Kopano Core components? [$value_default]: " new_value
 	CORE_VERSION=${new_value:-$value_default}
 
+	if type jq > /dev/null; then
+		echo "Available tags in https://hub.docker.com/r/zokradonh/kopano_webapp/: $(docker_tag_search zokradonh/kopano_webapp)"
+	fi
 	value_default=latest
 	read -p "Which tag do you want to use for Kopano WebApp? [$value_default]: " new_value
 	WEBAPP_VERSION=${new_value:-$value_default}
 
+	if type jq > /dev/null; then
+		echo "Available tags in https://hub.docker.com/r/zokradonh/kopano_zpush/: $(docker_tag_search zokradonh/kopano_zpush)"
+	fi
 	value_default=latest
 	read -p "Which tag do you want to use for Z-Push? [$value_default]: " new_value
 	ZPUSH_VERSION=${new_value:-$value_default}
 
+	if type jq > /dev/null; then
+		echo "Available tags in https://hub.docker.com/r/zokradonh/kopano_konnect/: $(docker_tag_search zokradonh/kopano_konnect)"
+	fi
 	value_default=latest
 	read -p "Which tag do you want to use for Kopano Konnect? [$value_default]: " new_value
 	KONNECT_VERSION=${new_value:-$value_default}