Use a custom OpenJDK base container image.
Change-Id: I9b24bdaf5f07974de12ae408df3b9a25e8268a48
diff --git a/src/main/docker/runtime/build b/src/main/docker/runtime/build
new file mode 100755
index 0000000..01347d7
--- /dev/null
+++ b/src/main/docker/runtime/build
@@ -0,0 +1,36 @@
+#! /bin/sh
+# SPDX-FileCopyrightText: © 2022 Matthias Andreas Benkard <code@mail.matthias.benkard.de>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+set -euo pipefail
+
+cd "$(dirname $(readlink -e "$0"))"
+
+image=docker.benkard.de/mulk/openjdk-runtime:latest
+use_kaniko=no
+
+./prepare
+
+if [[ "${use_kaniko}" == yes ]]; then
+ docker run \
+ --mount type=bind,src="$PWD",target=/workspace \
+ gcr.io/kaniko-project/warmer:latest \
+ --cache-dir=/workspace/cache \
+ --image=registry.access.redhat.com/ubi8/ubi-micro:latest \
+ --image=registry.access.redhat.com/ubi8/ubi-minimal:latest
+
+ docker run \
+ --mount type=bind,src="$PWD",target=/workspace \
+ --mount type=bind,src="$HOME/.docker",target=/root/.docker,ro=true \
+ gcr.io/kaniko-project/executor:latest \
+ --dockerfile Dockerfile \
+ --destination "${image}" \
+ --context dir:///workspace/ \
+ --cache=true \
+ --cache-ttl=16800h0m0s \
+ --reproducible=true
+else
+ docker build -t "${image}" .
+ docker push "${image}"
+fi