envDetect.js
2.25 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
"use strict";
// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.getEnv = exports.clear = exports.GCPEnv = void 0;
const gcpMetadata = require("gcp-metadata");
var GCPEnv;
(function (GCPEnv) {
GCPEnv["APP_ENGINE"] = "APP_ENGINE";
GCPEnv["KUBERNETES_ENGINE"] = "KUBERNETES_ENGINE";
GCPEnv["CLOUD_FUNCTIONS"] = "CLOUD_FUNCTIONS";
GCPEnv["COMPUTE_ENGINE"] = "COMPUTE_ENGINE";
GCPEnv["NONE"] = "NONE";
})(GCPEnv = exports.GCPEnv || (exports.GCPEnv = {}));
let envPromise;
function clear() {
envPromise = undefined;
}
exports.clear = clear;
async function getEnv() {
if (envPromise) {
return envPromise;
}
envPromise = getEnvMemoized();
return envPromise;
}
exports.getEnv = getEnv;
async function getEnvMemoized() {
let env = GCPEnv.NONE;
if (isAppEngine()) {
env = GCPEnv.APP_ENGINE;
}
else if (isCloudFunction()) {
env = GCPEnv.CLOUD_FUNCTIONS;
}
else if (await isComputeEngine()) {
if (await isKubernetesEngine()) {
env = GCPEnv.KUBERNETES_ENGINE;
}
else {
env = GCPEnv.COMPUTE_ENGINE;
}
}
else {
env = GCPEnv.NONE;
}
return env;
}
function isAppEngine() {
return !!(process.env.GAE_SERVICE || process.env.GAE_MODULE_NAME);
}
function isCloudFunction() {
return !!(process.env.FUNCTION_NAME || process.env.FUNCTION_TARGET);
}
async function isKubernetesEngine() {
try {
await gcpMetadata.instance('attributes/cluster-name');
return true;
}
catch (e) {
return false;
}
}
async function isComputeEngine() {
return gcpMetadata.isAvailable();
}
//# sourceMappingURL=envDetect.js.map