Rough and ready upgrading

abra

@@ -62,6 +62,7 @@ sub_help() {
 	echo "    run SERVICE CMD                       run a command in the specified service's container"
 	echo "    run_args SERVICE ARGS CMD             run, passing extra args to docker exec"
 	echo "    secret_generate SECRET VERSION [CMD]  generate a secret, store it in pass & as a Docker secret"
+	echo "    upgrade                               upgrade to the latest version"
 	echo "    ... (custom commands)"
 	echo ""
 	echo "Make sure \$STACK_NAME is set using direnv or -a"
@@ -237,6 +238,10 @@ sub_context_use() {
 	docker context use "$1"
 }
 
+sub_upgrade() {
+	curl -fsSL https://install.abra.autonomic.zone | bash
+}
+
 sub_context() {
 	SUBCOMMAND2=$1
 	shift