add build script

.dockerignore

@@ -1,2 +1,3 @@
 .dockerignore
 Dockerfile
+build.sh

build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+set -Eeuxo pipefail
+
+WWW_COMMIT=$(git rev-parse HEAD)
+WWW_IMAGE="registry.nrd.li/nrdli/www:${AKKOMA_COMMIT}"
+
+docker build \
+  -t "${WWW_IMAGE}" \
+  .
+docker push "${WWW_IMAGE}"