feat(docker): prepare portable images with runtime hotel configuration

src/lib/docker-update.test.ts

@@ -50,6 +50,9 @@ function simulate(scenario: string) {
 				TEST_SHA: sha,
 				SCENARIO: scenario,
 				CMS_PUBLIC_URL: "https://example.test",
+				CMS_IMAGE_REPOSITORY: scenario.startsWith("registry")
+					? "registry.test/team/cms"
+					: "",
 			},
 		});
 		if (result.error) throw result.error;
@@ -66,6 +69,22 @@ function simulate(scenario: string) {
 	}
 }
 describe("Docker clone updates", () => {
+	it("pulls matching prebuilt application and migrations without building", () => {
+		const r = simulate("registry");
+		expect(r.status, r.output).toBe(0);
+		expect(r.calls).toContain(`docker pull registry.test/team/cms:${sha}`);
+		expect(r.calls).toContain(
+			`docker pull registry.test/team/cms:${sha}-migrations`,
+		);
+		expect(r.calls).not.toContain("docker build");
+		expect(r.calls).not.toContain("docker compose build");
+		expect(r.calls).toContain("target=/app/.env,readonly");
+	});
+	it("keeps the current container when the registry pull fails", () => {
+		const r = simulate("registry-failure");
+		expect(r.status).not.toBe(0);
+		expect(r.calls).not.toContain("compose up");
+	});
 	it("removes only historical release tags beyond the current and previous", () => {
 		const r = simulate("success");
 		expect(r.calls).toContain(`docker image rm epicnext-cms:${"c".repeat(40)}`);