docker: contextInspect func

__tests__/docker/docker.test.itg.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import {describe, expect, test} from '@jest/globals';
+import {describe, expect, it, test} from '@jest/globals';
 
 import {Docker} from '../../src/docker/docker';
 
@@ -54,3 +54,14 @@ maybe('pull', () => {
       }
     }, 600000);
 });
+
+maybe('contextInspect', () => {
+  it('inspect default context', async () => {
+    const contextInfo = await Docker.contextInspect();
+    expect(contextInfo).toBeDefined();
+    console.log('contextInfo', contextInfo);
+    expect(contextInfo?.Name).toBeDefined();
+    expect(contextInfo?.Endpoints).toBeDefined();
+    expect(Object.keys(contextInfo?.Endpoints).length).toBeGreaterThan(0);
+  });
+});

__tests__/docker/docker.test.ts

@@ -118,6 +118,19 @@ describe('context', () => {
   });
 });
 
+describe('contextInspect', () => {
+  it('call docker context inspect', async () => {
+    const execSpy = jest.spyOn(Exec, 'getExecOutput');
+    await Docker.contextInspect('foo').catch(() => {
+      // noop
+    });
+    expect(execSpy).toHaveBeenCalledWith(`docker`, ['context', 'inspect', '--format=json', 'foo'], {
+      ignoreReturnCode: true,
+      silent: true
+    });
+  });
+});
+
 describe('printVersion', () => {
   it('call docker version', async () => {
     const execSpy = jest.spyOn(Exec, 'exec');

src/docker/docker.ts

@@ -25,7 +25,7 @@ import {Cache} from '../cache';
 import {Exec} from '../exec';
 import {Util} from '../util';
 
-import {ConfigFile} from '../types/docker/docker';
+import {ConfigFile, ContextInfo} from '../types/docker/docker';
 
 export class Docker {
   static get configDir(): string {
@@ -69,6 +69,22 @@ export class Docker {
     });
   }
 
+  public static async contextInspect(name?: string): Promise<ContextInfo> {
+    const args = ['context', 'inspect', '--format=json'];
+    if (name) {
+      args.push(name);
+    }
+    return await Exec.getExecOutput(`docker`, args, {
+      ignoreReturnCode: true,
+      silent: true
+    }).then(res => {
+      if (res.stderr.length > 0 && res.exitCode != 0) {
+        throw new Error(res.stderr.trim());
+      }
+      return (<Array<ContextInfo>>JSON.parse(res.stdout.trim()))[0];
+    });
+  }
+
   public static async printVersion(): Promise<void> {
     await Exec.exec('docker', ['version']);
   }

src/types/docker/docker.ts

@@ -64,3 +64,33 @@ export interface AuthConfig {
   identitytoken?: string;
   registrytoken?: string;
 }
+
+export interface ContextInfo {
+  Name: string;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  Metadata: any;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  Endpoints: Record<string, EndpointInfo>;
+  TLSMaterial: Record<string, Array<string>>;
+  Storage: StorageInfo;
+}
+
+export interface EndpointInfo {
+  Host?: string;
+  SkipVerify: boolean;
+  TLSData?: TLSData;
+}
+
+export interface TLSData {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  CA: any;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  Key: any;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  Cert: any;
+}
+
+export interface StorageInfo {
+  MetadataPath: string;
+  TLSPath: string;
+}