feat: support configuring kv path, persist kv data in docker

Author: shiftinv

Dockerfile

@@ -1,9 +1,18 @@
-FROM denoland/deno:alpine-1.45.0
+FROM denoland/deno:alpine-1.46.3
+
+RUN mkdir /data && chown deno:deno /data
+VOLUME /data
+ENV KV_PATH=/data/kv.sqlite3
 
 USER deno
 WORKDIR /app
 
 COPY . .
 RUN deno cache src/main.ts
 
-CMD ["run", "--allow-env", "--allow-net=:8080,discord.com", "--unstable-kv", "src/main.ts"]
+CMD [\
+    "run",\
+    "--allow-env", "--allow-net=:8080,discord.com", "--allow-read=/data", "--allow-write=/data",\
+    "--unstable-kv",\
+    "src/main.ts"\
+]

docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3'
-
 services:
   main:
     image: shiftinv/github-webhook-filter

src/config.ts

@@ -13,10 +13,12 @@ export default {
     debug: parseBool(get("DEBUG", "0")),
     hostname: get("HOSTNAME", "127.0.0.1"),
     port: parseInt(get("PORT", "8080")),
+
     signKey: get("SIGN_KEY", null),
     maxWebhookRetries: parseInt(get("MAX_RETRIES", "3")),
     maxWebhookRetryMs: parseInt(get("MAX_RETRY_MS", "30000")),
     mainRedirect: get("MAIN_REDIRECT", null),
+    KV_PATH: get("KV_PATH", null) ?? undefined,
 
     // set by deno deploy
     deployId: get("DENO_DEPLOYMENT_ID", "<unknown>"),

src/kv.ts

@@ -1,9 +1,10 @@
+import config from "./config.ts";
 import type { RequestLog } from "./util.ts";
 
 const KEY_EXPIRY = 3; // seconds
 const MAX_RETRIES = 50;
 
-const kv = await Deno.openKv();
+const kv = await Deno.openKv(config.KV_PATH);
 
 export async function getAndIncrementKV(key: string, reqLog: RequestLog): Promise<number> {
     const kvKey = ["pr-comment", key];