Add base image script

nextcloud/containers/base-micro/create_base_image.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -o errexit
+
+source ../create_images.shlib
+
+if [[ -z $1 ]] || [[ -z $2 ]]; then
+  echo "Usage: $0 <image_name> <release_version>"
+  exit
+fi
+
+## Build micro image
+bootstrap_env "scratch"
+
+# Install a basic filesystem and minimal set of packages, and microdnf
+dnf install -y --disablerepo=* --installroot $MOUNTPOINT --releasever $RELEASEVER \
+  $CENTOS_RELEASE_REPOS $CENTOS_RELEASE $CENTOS_GPG
+
+dnf install -y --installroot $MOUNTPOINT                    \
+  --releasever $RELEASEVER glibc-minimal-langpack --nodocs  \
+  --setopt install_weak_deps=False
+
+# Cleanup
+clean
+
+buildah unmount $CONTAINER
+# Save the container to an image
+buildah commit --squash $CONTAINER "localhost/${IMAGE_NAME}:stream${RELEASEVER}"
+