docker(install): allow specifying custom lima images

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

__tests__/docker/install.test.itg.ts

@@ -29,7 +29,9 @@ describe('install', () => {
     jest.resetModules();
     process.env = {
       ...originalEnv,
-      LIMA_START_ARGS: '--cpus 4 --memory 8'
+      LIMA_START_ARGS: '--cpus 4 --memory 8',
+      LIMA_IMAGES: `x86_64:https://cloud.debian.org/images/cloud/bookworm/20231013-1532/debian-12-genericcloud-amd64-20231013-1532.qcow2@sha512:6b55e88b027c14da1b55c85a25a9f7069d4560a8fdb2d948c986a585db469728a06d2c528303e34bb62d8b2984def38fd9ddfc00965846ff6e05b01d6e883bfe
+aarch64:https://cloud.debian.org/images/cloud/bookworm/20231013-1532/debian-12-genericcloud-arm64-20231013-1532.qcow2`
     };
   });
   afterEach(() => {

__tests__/docker/install.test.ts

@@ -71,3 +71,32 @@ describe('getRelease', () => {
     await expect(Install.getRelease('foo')).rejects.toThrow(new Error('Cannot find Docker release foo in https://raw.githubusercontent.com/docker/actions-toolkit/main/.github/docker-releases.json'));
   });
 });
+
+describe('limaImage', () => {
+  const originalEnv = process.env;
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {
+      ...originalEnv,
+      LIMA_IMAGES: `x86_64:https://cloud-images.ubuntu.com/releases/23.10/release-20231011/ubuntu-23.10-server-cloudimg-amd64.img@sha256:f6529be56da3429a56e4f5ef202bf4958201bc63f8541e478caa6e8eb712e635
+aarch64:https://cloud-images.ubuntu.com/releases/23.10/release-20231011/ubuntu-23.10-server-cloudimg-arm64.img`
+    };
+  });
+  afterEach(() => {
+    process.env = originalEnv;
+  });
+  it('returns custom images', async () => {
+    expect(Install.limaCustomImages()).toEqual([
+      {
+        location: 'https://cloud-images.ubuntu.com/releases/23.10/release-20231011/ubuntu-23.10-server-cloudimg-amd64.img',
+        arch: 'x86_64',
+        digest: 'sha256:f6529be56da3429a56e4f5ef202bf4958201bc63f8541e478caa6e8eb712e635'
+      },
+      {
+        location: 'https://cloud-images.ubuntu.com/releases/23.10/release-20231011/ubuntu-23.10-server-cloudimg-arm64.img',
+        arch: 'aarch64',
+        digest: ''
+      }
+    ]);
+  });
+});

src/docker/assets.ts

@@ -144,6 +144,11 @@ os: null
 arch: null
 
 images:
+{{#each customImages}}
+- location: "{{location}}"
+  arch: "{{arch}}"
+  digest: "{{digest}}"
+{{/each}}
 - location: "https://cloud-images.ubuntu.com/releases/22.04/release-20231026/ubuntu-22.04-server-cloudimg-amd64.img"
   arch: "x86_64"
   digest: "sha256:054db2d88c454bb0ad8dfd8883955e3946b57d2b0bf0d023f3ade3c93cdd14e5"

src/docker/install.ts

@@ -41,6 +41,12 @@ export interface InstallOpts {
   daemonConfig?: string;
 }
 
+interface LimaImage {
+  location: string;
+  arch: string;
+  digest?: string;
+}
+
 export class Install {
   private readonly runDir: string;
   private readonly version: string;
@@ -163,6 +169,7 @@ export class Install {
         return new handlebars.SafeString(JSON.stringify(obj));
       });
       const limaCfg = handlebars.compile(limaYamlData)({
+        customImages: Install.limaCustomImages(),
         daemonConfig: limaDaemonConfig,
         dockerSock: `${limaDir}/docker.sock`,
         dockerBinVersion: this._version,
@@ -512,4 +519,25 @@ EOF`,
     }
     return releases[version];
   }
+
+  public static limaCustomImages(): LimaImage[] {
+    const res: LimaImage[] = [];
+    const env = process.env.LIMA_IMAGES;
+    if (!env) {
+      return res;
+    }
+    for (const input of Util.getList(env, {ignoreComma: true, comment: '#'})) {
+      const archIndex = input.indexOf(':');
+      const arch = input.substring(0, archIndex).trim();
+      const digestIndex = input.indexOf('@');
+      const location = input.substring(archIndex + 1, digestIndex !== -1 ? digestIndex : undefined).trim();
+      const digest = digestIndex !== -1 ? input.substring(digestIndex + 1).trim() : '';
+      res.push({
+        location: location,
+        arch: arch,
+        digest: digest
+      });
+    }
+    return res;
+  }
 }

src/util.ts

@@ -19,22 +19,24 @@ import * as core from '@actions/core';
 import * as io from '@actions/io';
 import {parse} from 'csv-parse/sync';
 
-export interface InputListOpts {
+export interface ListOpts {
   ignoreComma?: boolean;
   comment?: string;
   quote?: string | boolean | Buffer | null;
 }
 
 export class Util {
-  public static getInputList(name: string, opts?: InputListOpts): string[] {
+  public static getInputList(name: string, opts?: ListOpts): string[] {
-    const res: Array<string> = [];
+    return this.getList(core.getInput(name), opts);
+  }
 
-    const items = core.getInput(name);
+  public static getList(input: string, opts?: ListOpts): string[] {
-    if (items == '') {
+    const res: Array<string> = [];
+    if (input == '') {
       return res;
     }
 
-    const records = parse(items, {
+    const records = parse(input, {
       columns: false,
       relaxQuotes: true,
       comment: opts?.comment,