fix acme drift

index.ts

@@ -7,6 +7,9 @@ import { promisify } from 'util';
 
 const execFile = promisify(_execFile);
 
+const DEBUG = process.env.DEBUG === '1';
+const NGINX_CONF_PATH = process.env.NGINX_CONF_PATH || '/etc/nginx/nginx.conf';
+
 async function reloadNginx() {
   console.error('[nginx] Reloading...');
   try {
@@ -20,27 +23,57 @@ async function reloadNginx() {
   }
 }
 
+function renderTemplate(parsed: any): string {
+  const tpl = fs.readFileSync(
+    path.join(__dirname, '..', 'views', 'nginx.conf.mustache'),
+    'utf8',
+  );
+  const rendered = Mustache.render(tpl, parsed, undefined, {
+    escape: (v) => v,
+  });
+  return rendered;
+}
+
+function writeConfig(rendered: string) {
+  if (DEBUG) {
+    // DEBUG=1：和原来一样，直接往 stdout 打
+    console.error('[render] DEBUG=1, writing config to stdout instead of file');
+    console.log(rendered);
+  } else {
+    fs.writeFileSync(NGINX_CONF_PATH, rendered, 'utf8');
+    console.error('[render] Nginx config written to', NGINX_CONF_PATH);
+  }
+}
+
 async function main() {
   try {
-    if (process.argv[2] === 'renewCert') {
+    const mode = process.argv[2];
+
+    if (mode === 'renewCert') {
       console.error('[acme] Signing start');
-      await getData(process.env as any, 61000);
+      // 带超时的 getData
+      const parsed = await getData(process.env as any, 61000);
       console.error('[acme] Signing done');
-      await reloadNginx();
+
+      console.error('[render] Nginx config render start (renewCert)');
+      const rendered = renderTemplate(parsed);
+      writeConfig(rendered);
+      console.error('[render] Nginx config render done (renewCert)');
+
+      if (!DEBUG) {
+        await reloadNginx();
+      } else {
+        console.error('[nginx] DEBUG=1, skip reload');
+      }
     } else {
       console.error('[render] Nginx config render start');
       const parsed = await getData(process.env as any);
       console.error('[render] parsed');
-      const tpl = fs.readFileSync(
-        path.join(__dirname, '..', 'views', 'nginx.conf.mustache'),
-        'utf8',
-      );
-      const rendered = Mustache.render(tpl, parsed, undefined, {
-        escape: (v) => v,
-      });
-      console.log(rendered);
+      const rendered = renderTemplate(parsed);
+      writeConfig(rendered);
       console.error('[render] Nginx config render done');
     }
+
     process.exit(0);
   } catch (e) {
     console.error('[main] Error:', e);

src/acme.ts

@@ -8,7 +8,7 @@ let email: string;
 export const domainsToBeSigned: string[] = [];
 
 export async function addSignCert(domains: string[], payload: string) {
-  const pickedCert = await pickCert(domains);
+  const pickedCert = await pickCert(domains, true);
   if (pickedCert) {
     return pickedCert;
   }

src/check-cert.ts

@@ -10,12 +10,12 @@ class Cert {
   );
   constructor(public dir: string) {}
 
-  isNotExpired() {
+  isNotExpired(acme = false) {
     const now = new Date();
     const validFrom = new Date(this.cert.validFrom);
     const validTo = new Date(this.cert.validTo);
 
-    if (process.argv[2] === 'renewCert') {
+    if (process.argv[2] === 'renewCert' && acme) {
       const threshold = new Date(validTo.getTime() - 7 * 24 * 60 * 60 * 1000);
       return now > validFrom && now < threshold;
     }
@@ -27,8 +27,8 @@ class Cert {
     return this.cert.checkHost(domain);
   }
 
-  isOkWithDomains(domains: string[]) {
-    return domains.every((domain) => this.isOkWithDomain(domain));
+  isOkWithDomains(domains: string[], acme = false) {
+    return domains.every((domain) => this.isOkWithDomain(domain, acme));
   }
 }
 
@@ -40,8 +40,8 @@ const certs = fs
   .map((dir) => new Cert(dir))
   .filter((cert) => cert.isNotExpired());
 
-export async function pickCert(domains: string[]) {
-  const okCerts = certs.filter((cert) => cert.isOkWithDomains(domains));
+export async function pickCert(domains: string[], acme = false) {
+  const okCerts = certs.filter((cert) => cert.isOkWithDomains(domains, acme));
   if (!okCerts.length) {
     return;
   }

views/entrypoint.sh

 #!/bin/sh
 set -e
 
-node dist > /etc/nginx/nginx.conf
+NGINX_CONF_PATH="${NGINX_CONF_PATH:-/etc/nginx/nginx.conf}"
 
-if grep -q 'acme_required' /etc/nginx/nginx.conf; then
+node dist
+
+# 检查是否需要 ACME
+if grep -q 'acme_required' "$NGINX_CONF_PATH"; then
   echo "[entrypoint] ACME required detected, scheduling daily renewCert task" >&2
   (
     while true; do
       sleep 86400  # 24h
       echo "[entrypoint] Running daily cert renewal..." >&2
-      node dist renewCert || echo "[entrypoint] renewCert failed" >&2
+      if ! node dist renewCert; then
+        echo "[entrypoint] renewCert failed" >&2
+      fi
       echo "[entrypoint] Daily cert renewal finished." >&2
     done
   ) &