Honor default Docker context for WSL 2 (#1290)

* Honor default Docker context for WSL2 * Narrow scope of calls to `refreshDockerode`
2019-10-07 15:04:15 -04:00 · 2019-10-07 15:04:15 -04:00 · 582a849848
--- a/package-lock.json
+++ b/package-lock.json
@ -1223,6 +1223,7 @@
      "version": "1.2.2",
      "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
      "integrity": "sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==",
+      "dev": true,
      "requires": {
        "readable-stream": "^2.3.5",
        "safe-buffer": "^5.1.1"
@ -1231,12 +1232,14 @@
        "process-nextick-args": {
          "version": "2.0.0",
          "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
-          "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw=="
+          "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==",
+          "dev": true
        },
        "readable-stream": {
          "version": "2.3.6",
          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
          "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
+          "dev": true,
          "requires": {
            "core-util-is": "~1.0.0",
            "inherits": "~2.0.3",
@ -1251,6 +1254,7 @@
          "version": "1.1.1",
          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
          "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+          "dev": true,
          "requires": {
            "safe-buffer": "~5.1.0"
          }
@ -1413,6 +1417,7 @@
      "version": "1.2.0",
      "resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
      "integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
+      "dev": true,
      "requires": {
        "buffer-alloc-unsafe": "^1.1.0",
        "buffer-fill": "^1.0.0"
@ -1421,7 +1426,8 @@
    "buffer-alloc-unsafe": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
-      "integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg=="
+      "integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==",
+      "dev": true
    },
    "buffer-crc32": {
      "version": "0.2.13",
@ -1442,7 +1448,8 @@
    "buffer-fill": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/buffer-fill/-/buffer-fill-1.0.0.tgz",
-      "integrity": "sha1-+PeLdniYiO858gXNY39o5wISKyw="
+      "integrity": "sha1-+PeLdniYiO858gXNY39o5wISKyw=",
+      "dev": true
    },
    "buffer-from": {
      "version": "1.1.1",
@ -1866,6 +1873,7 @@
      "version": "1.6.2",
      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
      "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
+      "dev": true,
      "requires": {
        "buffer-from": "^1.0.0",
        "inherits": "^2.0.3",
@ -1876,12 +1884,14 @@
        "process-nextick-args": {
          "version": "2.0.0",
          "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
-          "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw=="
+          "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==",
+          "dev": true
        },
        "readable-stream": {
          "version": "2.3.6",
          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
          "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
+          "dev": true,
          "requires": {
            "core-util-is": "~1.0.0",
            "inherits": "~2.0.3",
@ -1896,6 +1906,7 @@
          "version": "1.1.1",
          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
          "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+          "dev": true,
          "requires": {
            "safe-buffer": "~5.1.0"
          }
@ -2646,14 +2657,15 @@
      }
    },
    "docker-modem": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/docker-modem/-/docker-modem-1.0.9.tgz",
-      "integrity": "sha512-lVjqCSCIAUDZPAZIeyM125HXfNvOmYYInciphNrLrylUtKyW66meAjSPXWchKVzoIYZx69TPnAepVSSkeawoIw==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/docker-modem/-/docker-modem-2.0.2.tgz",
+      "integrity": "sha512-Aq6NBJQm5najFlg4wRZtSrWXzQbQClh1kccAkUWIdVhuyHK6tYhmi9W9xtVaGmzBa0Nfuwi4AEbQzWtHZT+2Jw==",
      "requires": {
        "JSONStream": "1.3.2",
        "debug": "^3.2.6",
        "readable-stream": "~1.0.26-4",
-        "split-ca": "^1.0.0"
+        "split-ca": "^1.0.0",
+        "ssh2": "^0.8.5"
      },
      "dependencies": {
        "isarray": {
@ -2745,13 +2757,49 @@
      }
    },
    "dockerode": {
-      "version": "2.5.8",
-      "resolved": "https://registry.npmjs.org/dockerode/-/dockerode-2.5.8.tgz",
-      "integrity": "sha512-+7iOUYBeDTScmOmQqpUYQaE7F4vvIt6+gIZNHWhqAQEI887tiPFB9OvXI/HzQYqfUNvukMK+9myLW63oTJPZpw==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/dockerode/-/dockerode-3.0.2.tgz",
+      "integrity": "sha512-jql7zwTQH2psjyevyeWOpe9XJ8x1WbXX/TwKHcWlJsq1jivxN2+1nVqT72HKE9xxNR/MGcuWcPxrCBHNu9GZpw==",
      "requires": {
-        "concat-stream": "~1.6.2",
-        "docker-modem": "^1.0.8",
-        "tar-fs": "~1.16.3"
+        "concat-stream": "~2.0.0",
+        "docker-modem": "^2.0.0",
+        "tar-fs": "~2.0.0"
+      },
+      "dependencies": {
+        "concat-stream": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-2.0.0.tgz",
+          "integrity": "sha512-MWufYdFw53ccGjCA+Ol7XJYpAlW6/prSMzuPOTRnJGcGzuhLn4Scrz7qf6o8bROZ514ltazcIFJZevcfbo0x7A==",
+          "requires": {
+            "buffer-from": "^1.0.0",
+            "inherits": "^2.0.3",
+            "readable-stream": "^3.0.2",
+            "typedarray": "^0.0.6"
+          }
+        },
+        "readable-stream": {
+          "version": "3.4.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.4.0.tgz",
+          "integrity": "sha512-jItXPLmrSR8jmTRmRWJXCnGJsfy85mB3Wd/uINMXA65yrnFo0cPClFIUWzo2najVNSl+mx7/4W8ttlLWJe99pQ==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        },
+        "safe-buffer": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
+          "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg=="
+        },
+        "string_decoder": {
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+          "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+          "requires": {
+            "safe-buffer": "~5.2.0"
+          }
+        }
      }
    },
    "dom-serializer": {
@ -6814,9 +6862,9 @@
      }
    },
    "pump": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/pump/-/pump-1.0.3.tgz",
-      "integrity": "sha512-8k0JupWme55+9tCVE+FS5ULT3K6AbgqrGa58lTT49RpyfwwcGedHqaC5LlQNdEAumn/wFsu6aPwkuPMioy8kqw==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
+      "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
      "requires": {
        "end-of-stream": "^1.1.0",
        "once": "^1.3.1"
@ -7694,6 +7742,24 @@
      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
      "dev": true
    },
+    "ssh2": {
+      "version": "0.8.5",
+      "resolved": "https://registry.npmjs.org/ssh2/-/ssh2-0.8.5.tgz",
+      "integrity": "sha512-TkvzxSYYUSQ8jb//HbHnJVui4fVEW7yu/zwBxwro/QaK2EGYtwB+8gdEChwHHuj142c5+250poMC74aJiwApPw==",
+      "requires": {
+        "ssh2-streams": "~0.4.4"
+      }
+    },
+    "ssh2-streams": {
+      "version": "0.4.6",
+      "resolved": "https://registry.npmjs.org/ssh2-streams/-/ssh2-streams-0.4.6.tgz",
+      "integrity": "sha512-jXq/nk2K82HuueO9CTCdas/a0ncX3fvYzEPKt1+ftKwE5RXTX25GyjcpjBh2lwVUYbk0c9yq6cBczZssWmU3Tw==",
+      "requires": {
+        "asn1": "~0.2.0",
+        "bcrypt-pbkdf": "^1.0.2",
+        "streamsearch": "~0.1.2"
+      }
+    },
    "sshpk": {
      "version": "1.15.2",
      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.15.2.tgz",
@ -7833,6 +7899,11 @@
      "integrity": "sha1-1cdSgl5TZ+eG944Y5EXqIjoVWVI=",
      "dev": true
    },
+    "streamsearch": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/streamsearch/-/streamsearch-0.1.2.tgz",
+      "integrity": "sha1-gIudDlb8Jz2Am6VzOOkpkZoanxo="
+    },
    "string-replace-webpack-plugin": {
      "version": "0.1.3",
      "resolved": "https://registry.npmjs.org/string-replace-webpack-plugin/-/string-replace-webpack-plugin-0.1.3.tgz",
@ -8035,20 +8106,66 @@
      }
    },
    "tar-fs": {
-      "version": "1.16.3",
-      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-1.16.3.tgz",
-      "integrity": "sha512-NvCeXpYx7OsmOh8zIOP/ebG55zZmxLE0etfWRbWok+q2Qo8x/vOR/IJT1taADXPe+jsiu9axDb3X4B+iIgNlKw==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.0.0.tgz",
+      "integrity": "sha512-vaY0obB6Om/fso8a8vakQBzwholQ7v5+uy+tF3Ozvxv1KNezmVQAiWtcNmMHFSFPqL3dJA8ha6gdtFbfX9mcxA==",
      "requires": {
-        "chownr": "^1.0.1",
+        "chownr": "^1.1.1",
        "mkdirp": "^0.5.1",
-        "pump": "^1.0.0",
-        "tar-stream": "^1.1.2"
+        "pump": "^3.0.0",
+        "tar-stream": "^2.0.0"
+      },
+      "dependencies": {
+        "bl": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/bl/-/bl-3.0.0.tgz",
+          "integrity": "sha512-EUAyP5UHU5hxF8BPT0LKW8gjYLhq1DQIcneOX/pL/m2Alo+OYDQAJlHq+yseMP50Os2nHXOSic6Ss3vSQeyf4A==",
+          "requires": {
+            "readable-stream": "^3.0.1"
+          }
+        },
+        "readable-stream": {
+          "version": "3.4.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.4.0.tgz",
+          "integrity": "sha512-jItXPLmrSR8jmTRmRWJXCnGJsfy85mB3Wd/uINMXA65yrnFo0cPClFIUWzo2najVNSl+mx7/4W8ttlLWJe99pQ==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        },
+        "safe-buffer": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
+          "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg=="
+        },
+        "string_decoder": {
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+          "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+          "requires": {
+            "safe-buffer": "~5.2.0"
+          }
+        },
+        "tar-stream": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.1.0.tgz",
+          "integrity": "sha512-+DAn4Nb4+gz6WZigRzKEZl1QuJVOLtAwwF+WUxy1fJ6X63CaGaUAxJRD2KEn1OMfcbCjySTYpNC6WmfQoIEOdw==",
+          "requires": {
+            "bl": "^3.0.0",
+            "end-of-stream": "^1.4.1",
+            "fs-constants": "^1.0.0",
+            "inherits": "^2.0.3",
+            "readable-stream": "^3.1.1"
+          }
+        }
      }
    },
    "tar-stream": {
      "version": "1.6.2",
      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-1.6.2.tgz",
      "integrity": "sha512-rzS0heiNf8Xn7/mpdSVVSMAWAoy9bfb1WOTYC78Z0UQKeKa/CWS8FOq0lKGNa8DWKAn9gxjCvMLYc5PGXYlK2A==",
+      "dev": true,
      "requires": {
        "bl": "^1.0.0",
        "buffer-alloc": "^1.2.0",
@ -8062,12 +8179,14 @@
        "process-nextick-args": {
          "version": "2.0.0",
          "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
-          "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw=="
+          "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==",
+          "dev": true
        },
        "readable-stream": {
          "version": "2.3.6",
          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
          "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
+          "dev": true,
          "requires": {
            "core-util-is": "~1.0.0",
            "inherits": "~2.0.3",
@ -8082,6 +8201,7 @@
          "version": "1.1.1",
          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
          "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+          "dev": true,
          "requires": {
            "safe-buffer": "~5.1.0"
          }
@ -8437,7 +8557,8 @@
    "to-buffer": {
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
-      "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg=="
+      "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg==",
+      "dev": true
    },
    "to-object-path": {
      "version": "0.3.0",
@ -10127,7 +10248,8 @@
    "xtend": {
      "version": "4.0.1",
      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "dev": true
    },
    "y18n": {
      "version": "4.0.0",
--- a/package.json
+++ b/package.json
@ -1977,7 +1977,7 @@
        "azure-storage": "^2.10.3",
        "deep-equal": "^1.1.0",
        "dockerfile-language-server-nodejs": "^0.0.21",
-        "dockerode": "^2.5.8",
+        "dockerode": "^3.0.2",
        "fs-extra": "^6.0.1",
        "glob": "7.1.2",
        "gradle-to-js": "^2.0.0",
--- a/src/extension.ts
+++ b/src/extension.ts
@ -32,6 +32,7 @@ import { addUserAgent } from './utils/addUserAgent';
 import { getTrustedCertificates } from './utils/getTrustedCertificates';
 import { Keytar } from './utils/keytar';
 import { DefaultTerminalProvider } from './utils/TerminalProvider';
+import { tryGetDefaultDockerContext } from './utils/tryGetDefaultDockerContext';
 import { wrapError } from './utils/wrapError';

 export type KeyInfo = { [keyName: string]: string };
@ -222,9 +223,16 @@ namespace Configuration {
                    settings: null
                });

-                // Update endpoint and refresh explorer if needed
-                if (e.affectsConfiguration('docker')) {
+                // Refresh explorer if needed
+                if (e.affectsConfiguration('docker.host') ||
+                    e.affectsConfiguration('docker.certPath') ||
+                    e.affectsConfiguration('docker.tlsVerify') ||
+                    e.affectsConfiguration('docker.machineName')) {
                    refreshDockerode();
+                }
+
+                // Update endpoint if needed
+                if (e.affectsConfiguration('docker')) {
                    // tslint:disable-next-line: no-floating-promises
                    setRequestDefaults();
                }
@ -308,7 +316,7 @@ function refreshDockerode(): void {
        process.env = { ...process.env }; // make a clone before we change anything
        addDockerSettingsToEnv(process.env, oldEnv);
        ext.dockerodeInitError = undefined;
-        ext.dockerode = new Dockerode();
+        ext.dockerode = new Dockerode(process.env.DOCKER_HOST ? undefined : tryGetDefaultDockerContext());
    } catch (error) {
        // This will be displayed in the tree
        ext.dockerodeInitError = error;
--- a/src/utils/tryGetDefaultDockerContext.ts
+++ b/src/utils/tryGetDefaultDockerContext.ts
@ -0,0 +1,46 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See LICENSE.md in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as cp from 'child_process';
+import { DockerOptions } from 'dockerode';
+
+const unix = 'unix://';
+const npipe = 'npipe://';
+
+// Not exhaustive--only the properties we're interested in
+interface IDockerEndpoint {
+    Host?: string;
+}
+
+// Also not exhaustive--only the properties we're interested in
+interface IDockerContext {
+    Endpoints: { [key: string]: IDockerEndpoint }
+}
+
+export function tryGetDefaultDockerContext(): DockerOptions {
+    try {
+        const stdout = cp.execSync('docker context inspect', { timeout: 5000 }).toString();
+        const dockerContexts = <IDockerContext[]>JSON.parse(stdout);
+        const defaultHost: string =
+            dockerContexts &&
+            dockerContexts.length > 0 &&
+            dockerContexts[0].Endpoints &&
+            dockerContexts[0].Endpoints.docker &&
+            dockerContexts[0].Endpoints.docker.Host;
+
+        if (defaultHost.indexOf(unix) === 0) {
+            return {
+                socketPath: defaultHost.substring(unix.length), // Everything after the unix:// (expecting unix:///var/run/docker.sock)
+            };
+        } else if (defaultHost.indexOf(npipe) === 0) {
+            return {
+                socketPath: defaultHost.substring(npipe.length), // Everything after the npipe:// (expecting npipe:////./pipe/docker_engine or npipe:////./pipe/docker_wsl)
+            };
+        }
+    } catch { } // Best effort
+
+    // We won't try harder than that; for more complicated scenarios user will need to set DOCKER_HOST etc. in environment or VSCode options
+    return undefined;
+}