fix: pin chart to exact latest version at provision time, fix health check URL

src/services/cloudflare.ts

@@ -44,7 +44,7 @@ export async function getCustomerDnsRecord(slug: string): Promise<{ exists: bool
 
 export async function checkCustomerHealth(slug: string): Promise<{ reachable: boolean; status: number | null }> {
   try {
-    const res = await fetch(`https://${slug}.lunarfront.tech/health`, {
+    const res = await fetch(`https://${slug}.lunarfront.tech/api/health`, {
       signal: AbortSignal.timeout(5000),
     });
     return { reachable: res.ok, status: res.status };

src/services/git.ts

@@ -4,6 +4,23 @@ import { tmpdir } from "os";
 import { join } from "path";
 import { config } from "../lib/config";
 
+async function getLatestChartVersion(): Promise<string> {
+  const res = await fetch("https://api.digitalocean.com/v2/registry/lunarfront/repositories/lunarfront/tags?page=1&per_page=100", {
+    headers: { Authorization: `Bearer ${config.doToken}` },
+  });
+  const data = await res.json() as { tags: { tag: string }[] };
+  const versions = (data.tags ?? [])
+    .map(t => t.tag)
+    .filter(t => /^\d+\.\d+\.\d+$/.test(t))
+    .sort((a, b) => {
+      const [aMaj, aMin, aPat] = a.split(".").map(Number);
+      const [bMaj, bMin, bPat] = b.split(".").map(Number);
+      return bMaj - aMaj || bMin - aMin || bPat - aPat;
+    });
+  if (!versions.length) throw new Error("No chart versions found in DOCR");
+  return versions[0];
+}
+
 function withRepo<T>(fn: (dir: string, env: NodeJS.ProcessEnv) => T): T {
   const keyPath = join(tmpdir(), `manager-ssh-key-${Date.now()}`);
   const dir = join(tmpdir(), `lunarfront-charts-${Date.now()}`);
@@ -30,9 +47,10 @@ function withRepo<T>(fn: (dir: string, env: NodeJS.ProcessEnv) => T): T {
   }
 }
 
-export function addCustomerChart(slug: string, appVersion: string) {
+export async function addCustomerChart(slug: string, appVersion: string) {
+  const version = (appVersion === "*" || appVersion === "latest") ? await getLatestChartVersion() : appVersion;
   withRepo((dir, env) => {
-    const manifest = buildArgoCDApp(slug, appVersion);
+    const manifest = buildArgoCDApp(slug, version);
     writeFileSync(join(dir, "customers", `${slug}.yaml`), manifest);
     execSync(`git -C ${dir} add customers/${slug}.yaml`, { env });
     execSync(`git -C ${dir} commit -m "feat: provision customer ${slug}"`, { env });
@@ -50,8 +68,8 @@ export function removeCustomerChart(slug: string) {
   });
 }
 
-function buildArgoCDApp(slug: string, appVersion: string): string {
-  const revision = appVersion === "*" || appVersion === "latest" ? ">=0.0.1" : appVersion;
+function buildArgoCDApp(slug: string, version: string): string {
+  const revision = version;
   return `apiVersion: argoproj.io/v1alpha1
 kind: Application
 metadata: