Lerna boostrap fails with npm ERR! code E401

Question

whenever i'm running Lerna bootstrap on Jenkins its fails with error, but passes on local machine.

npm ERR! code E401
npm ERR! Unable to authenticate, need: BASIC realm="Sonatype Nexus Repository Manager"

Package.json on main folder

"scripts":{
  "bootstrap": "lerna bootstrap --loglevel verbose",
  "publish-packages": "lerna publish --skip-git",
  "clean": "lerna clean"
},
"dependencies": {
  "lerna": "^5.0.0"
}

lerna.json

{
  "packages": [
    "packages/*"
  ],
  "npmClientArgs": [
    "--strict-ssl=false",
    "--always-auth=true"
  ],
  "version": "independent"
}

running commands

npm i
npm run bootstrap

npm i - passes but "npm run bootstrap" fails.

I've tried multiple options like

1. in .npmrc added credentials for my-repo

   //my-repo-url:8081/nexus/repository/npm-repo/:_password=##base-64-encoded-password## //my-repo-url:8081/nexus/repository/npm-repo/:username=##usernamr##

2. in added in .npmrc _auth=##base-64-encoded-username-and-password##

3. added or removed "--always-auth=true" & "--strict-ssl" from "npmClientArgs" in lerna.json

Versions

1. node v14.17.0
2. npm 6.14.13

Answer 1

Option#1

1. I resolved by, adding "_auth" in lerna.json -> npmClientArgs.I Copied _auth value from .npmrc and added in "npmClientArgs"
2. You can also generate authToken and use it here

{ "packages": [ "packages/*" ], "npmClientArgs": [ "--strict-ssl=false", "--always-auth=true", "--_auth=AUTH-KEY" ], "version": "independent" }

Option#2

1. During build, you can recursively copy .npmrc in all " packages/ *" folder