Added build with buildah and deploy to kubernetes

deploy/build-image.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+zig build -Drelease-small=true
+
+ret=0; buildah images adyxax/alpine &>/dev/null || ret=$?
+if [[ "${ret}" != 0 ]]; then
+	buildah rmi --all
+	ALPINE_LATEST=$(curl --silent https://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/x86_64/ |
+		perl -lane '$latest = $1 if $_ =~ /^<a href="(alpine-minirootfs-\d+\.\d+\.\d+-x86_64\.tar\.gz)">/; END {print $latest}'
+	)
+	if [ ! -e "./${ALPINE_LATEST}" ]; then
+		echo "Fetching ${ALPINE_LATEST}..."
+		curl --silent "https://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/x86_64/${ALPINE_LATEST}" \
+			--output "./${ALPINE_LATEST}"
+	fi
+
+	ctr=$(buildah from scratch)
+	buildah add "${ctr}" "${ALPINE_LATEST}" /
+	buildah run "${ctr}" /bin/sh -c 'apk upgrade --no-cache'
+	buildah run "${ctr}" /bin/sh -c 'apk add --no-cache pcre sqlite-libs'
+	buildah commit "${ctr}" adyxax/alpine
+	buildah rm "${ctr}"
+fi
+
+ret=0; buildah images adyxax/wasm4 &>/dev/null || ret=$?
+if [[ "${ret}" != 0 ]]; then
+	wasm4=$(buildah from adyxax/alpine)
+	buildah run "${wasm4}" /bin/sh -c 'apk add --no-cache nodejs-current npm'
+	buildah run "${wasm4}" /bin/sh -c 'npm install -g wasm4'
+	buildah commit "${wasm4}" adyxax/wasm4
+else
+	wasm4=$(buildah from adyxax/wasm4)
+fi
+
+buildah copy "${wasm4}" zig-out/lib/cart.wasm /
+
+buildah config \
+	--author 'Julien Dessaux' \
+	--cmd "w4 run --port 80 --no-open --no-qr /cart.wasm" \
+	--port 80 \
+	"${wasm4}"
+
+buildah commit "${wasm4}" adyxax/grenade-brothers
+buildah rm "${wasm4}"