Update docker

docker/admin.entrypoint.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+fail() {
+    printf '%s\n' "$1" >&2 ## Send message to stderr.
+    exit "${2-1}"          ## Return a code specified by $2, or 1 by default.
+}
+
+[[ -d migrations ]] || fail "Error: Must be run from the backend directory."
+
+export SSHECRET_ADMIN_DATABASE="/opt/sshecret-admin/sshecret_admin.db"
+export SSHECRET_ADMIN_PASSWORD_MANAGER_DIRECTORY="/opt/sshecret-admin"
+
+alembic upgrade head
+
+sshecret-admin run --host 0.0.0.0