30 lines
509 B
JavaScript
30 lines
509 B
JavaScript
|
import fs from 'node:fs';
|
||
|
|
|
||
|
|
let isDockerCached;
|
||
|
|
|
||
|
|
function hasDockerEnv() {
|
||
|
|
try {
|
||
|
|
fs.statSync('/.dockerenv');
|
||
|
|
return true;
|
||
|
|
} catch {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function hasDockerCGroup() {
|
||
|
|
try {
|
||
|
|
return fs.readFileSync('/proc/self/cgroup', 'utf8').includes('docker');
|
||
|
|
} catch {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
export default function isDocker() {
|
||
|
|
// TODO: Use `??=` when targeting Node.js 16.
|
||
|
|
if (isDockerCached === undefined) {
|
||
|
|
isDockerCached = hasDockerEnv() || hasDockerCGroup();
|
||
|
|
}
|
||
|
|
|
||
|
|
return isDockerCached;
|
||
|
|
}
|