Clarify Aspire's MIT software license on the website and in docs

src/frontend/src/components/FooterLegal.astro

@@ -9,6 +9,15 @@ const t = Astro.locals.t as unknown as (key: string) => string;
     {t('footer.legal') || 'Legal'}
   </p>
   <ul class="footer-links">
+    <li>
+      <a
+        href="https://github.com/microsoft/aspire/blob/main/LICENSE.TXT"
+        target="_blank"
+        rel="noopener noreferrer"
+      >
+        {t('footer.aspireLicense')}
+      </a>
+    </li>
     <li>
       <a
         href="https://aka.ms/yourcaliforniaprivacychoices"

src/frontend/src/content/docs/get-started/what-is-aspire.mdx

@@ -13,7 +13,7 @@ import { Aside, Steps, Tabs, TabItem } from '@astrojs/starlight/components';
 import { Kbd } from 'starlight-kbd/components'
 import LearnMore from '@components/LearnMore.astro';
 
-Aspire is a code-first orchestration and observability layer for distributed applications.
+Aspire is a code-first orchestration and observability layer for distributed applications. It is open-source software licensed under the [MIT License](https://github.com/microsoft/aspire/blob/main/LICENSE.TXT).
 
 Use Aspire to model the services, frontends, databases, queues, caches, containers, and cloud dependencies that make up your app. In production they work together as one system, but during development they often need to be started separately, configured by hand, and debugged across multiple terminals and dashboards. Aspire gives you one place to define that system, one command to run it, and one toolchain to observe it.
 

src/frontend/src/content/i18n/en.json

@@ -439,6 +439,7 @@
     "privacy": "Privacy",
     "resources": "Resources",
     "legal": "Legal",
+    "aspireLicense": "Aspire software: MIT License",
     "privacyChoices": "Your Privacy Choices",
     "consumerHealthPrivacy": "Consumer Health Privacy",
     "contact": "Contact",

src/frontend/tests/e2e/licensing.spec.ts

@@ -0,0 +1,42 @@
+import { expect, test } from '@playwright/test';
+import { dismissCookieConsentIfVisible } from './helpers';
+
+const licenseUrl = 'https://github.com/microsoft/aspire/blob/main/LICENSE.TXT';
+
+for (const path of ['/', '/get-started/what-is-aspire/']) {
+  test(`Aspire's MIT software license is discoverable on ${path}`, async ({ page }) => {
+    await page.goto(path);
+    await dismissCookieConsentIfVisible(page);
+
+    const legal = page.getByRole('navigation', { name: 'Legal', exact: true });
+    const license = legal.getByRole('link', { name: 'Aspire software: MIT License', exact: true });
+    await expect(license).toHaveAttribute('href', licenseUrl);
+    await license.scrollIntoViewIfNeeded();
+    await expect(license).toBeVisible();
+    await license.focus();
+    await expect(license).toBeFocused();
+    await license.click({ trial: true });
+    const bounds = await license.boundingBox();
+    expect(bounds).not.toBeNull();
+    expect(bounds!.x).toBeGreaterThanOrEqual(0);
+    expect(bounds!.x + bounds!.width).toBeLessThanOrEqual(page.viewportSize()!.width);
+
+    await expect(legal.getByRole('link', { name: 'Terms of Use', exact: true })).toHaveAttribute(
+      'href',
+      'https://go.microsoft.com/fwlink/?LinkID=206977'
+    );
+    await expect(legal.getByRole('link', { name: 'Privacy & Cookies', exact: true })).toBeVisible();
+    await expect(legal.getByRole('link', { name: 'Trademarks', exact: true })).toBeVisible();
+
+    if (path !== '/') {
+      const content = page.locator('.sl-markdown-content');
+      await expect(content).toContainText(
+        'It is open-source software licensed under the MIT License.'
+      );
+      await expect(content.getByRole('link', { name: 'MIT License', exact: true })).toHaveAttribute(
+        'href',
+        licenseUrl
+      );
+    }
+  });
+}

src/frontend/tests/unit/custom-components.vitest.test.ts

@@ -1797,6 +1797,28 @@ describe('custom Astro component render coverage', () => {
     expect(html).not.toContain('data-open-install-modal');
   });
 
+  it('links Aspire software to its MIT license without replacing website legal links', async () => {
+    const html = normalizeHtml(
+      await renderComponent(FooterLegal, {
+        locals: { t: createTestTranslator(enTranslations) },
+      })
+    );
+
+    expect(html).toMatch(
+      /<a[^>]*href="https:\/\/github\.com\/microsoft\/aspire\/blob\/main\/LICENSE\.TXT"[^>]*>\s*Aspire software: MIT License\s*<\/a>/
+    );
+    for (const href of [
+      'https://aka.ms/yourcaliforniaprivacychoices',
+      'https://go.microsoft.com/fwlink/?LinkId=521839',
+      'https://go.microsoft.com/fwlink/?LinkID=206977',
+      'https://go.microsoft.com/fwlink/?linkid=2196228',
+      '/support/',
+    ]) {
+      expect(html).toContain(`href="${href}"`);
+    }
+    expect(html).toContain('Terms of Use');
+  });
+
   it('renders a unique scanner-addressable Manage Cookies action under Legal', async () => {
     const html = normalizeHtml(
       await renderComponent(FooterLegal, {