deploy: add README.md and kokoro.sh

A README is added to the deploy/ directory to explain what the files are
in that directory.

The contents of the internal kokoro/vulndb/dbdiff/buid.sh file is copied
to deploy/kokoro.sh to make it easier to make modifications to the
kokoro config.

Change-Id: I62e829aa881729837e7adb56eaacc4f7e6618713
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/382194
Trust: Julie Qiu <julie@golang.org>
Run-TryBot: Julie Qiu <julie@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>

deploy/README.md

@@ -0,0 +1,15 @@
+# Deploy
+
+The Go vulndb project is hosted on GCP and uses a continuous integration
+service called “Kokoro” for running tests.
+
+This directory contains files used for kokoro test job configurations and for
+building and deploying the vulnerability database and worker.
+(Additional job definitions live in an internal repository).
+
+`kokoro.sh` acts as the entry point for scripts to be run via kokoro.
+
+`build.yaml` and `gcp-deploy.sh` are used to deploy the vulnerability database
+GCS bucket.
+
+`worker.yaml` is used to build the vulnerability database worker.

deploy/kokoro.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# Copyright 2022 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+set -e
+
+mkdir old-db
+gsutil -m cp -r gs://go-vulndb/* old-db
+
+go install golang.org/x/vulndb/cmd/gendb@latest
+go install golang.org/x/vulndb/cmd/dbdiff@latest
+
+export PATH=$PATH:$GOPATH/bin
+
+gendb -reports reports -out new-db
+dbdiff old-db new-db