Add docker-compose to build image

Author: calind

images/build/Dockerfile

@@ -160,6 +160,15 @@ RUN set -ex \
     && chmod 0755 /usr/local/bin/kustomize \
     && chown root:root /usr/local/bin/kustomize
 
+# ------------------------------------------------------------------------------------------------
+# docker-compose
+
+RUN set -ex \
+    && export DOCKER_COMPOSE_VERSION="1.29.2" \
+    && curl -sL -o /usr/local/bin/docker-compose "https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/docker-compose-Linux-x86_64" \
+    && chmod +x /usr/local/bin/docker-compose \
+    && chown root:root /usr/local/bin/docker
+
 # ------------------------------------------------------------------------------------------------
 # Run tini as PID 1 and avoid signal handling issues