From 9f43a4cb874966a22c1284868f481b1dbb8434e8 Mon Sep 17 00:00:00 2001
From: Valentin Lab <valentin.lab@kalysto.org>
Date: Wed, 9 Dec 2020 10:07:25 +0100
Subject: [PATCH] new: dev: [compose-core] added ``service_base_image_id``
 function for charms

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>
---
 bin/compose-core | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/bin/compose-core b/bin/compose-core
index 2feb638..f6d54cc 100755
--- a/bin/compose-core
+++ b/bin/compose-core
@@ -514,6 +514,19 @@ service_base_image_export_dir() {
 }
 export -f service_base_image_export_dir
 
+
+service_base_image_id() {
+    local service="$1" src="$2" dst="$3" base_image
+    shift
+    base_image=$(service_base_docker_image "$service") || return 1
+    if ! docker_has_image "$base_image"; then
+        docker pull "$base_image"
+    fi
+    docker inspect "$base_image" --format="{{ .Id }}"
+}
+export -f service_base_image_id
+
+
 ##
 ## Generic
 ##