chore: add helper script for pushing images (#233)

hack/push.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -e
+
+DEFAULT_REPO="autonomy"
+
+REPO="${1}"
+TAG="${2}"
+
+
+images=( trustd proxyd blockd osd talos )
+for i in ${images[@]}; do
+    if [ "${REPO}" != "${DEFAULT_REPO}" ]; then
+        docker tag ${DEFAULT_REPO}/${i}:${TAG} ${REPO}/${i}:${TAG}
+    fi
+    docker push ${REPO}/${i}:${TAG}
+done
+