Encountering authentication issues while attempting to access a private npm registry through Azure DevOps pipeline

When attempting to utilize an npm package from a private repository hosted in a separate Azure DevOps organization, I encountered the following error during the npm install step:

npm ERR! code E401
npm ERR! Unable to authenticate, need: Bearer authorization_uri=https://login.windows.net/2dfb2f0b-4d21-4268-9559-72926144c918, Basic realm="https://pkgsprodcus1.pkgs.visualstudio.com/", TFS-Federated

The content of my project .npmrc file is as follows:

@{scope}:registry=https://pkgs.dev.azure.com/{ORG}/{PROJECT}/_packaging/{FEED}/npm/registry/
always-auth=true
strict-ssl=false

I have followed the documentation on configuring the PAT token with Packaging Read & Write permissions

Attempts to connect using a service connection proved unsuccessful.

I also tried adding credentials to the project .npmrc file to no avail.

.npmrc file with credentials:

@{scope}:registry=https://pkgs.dev.azure.com/{ORG}/{PROJECT}/_packaging/{FEED}/npm/registry/
always-auth=true
strict-ssl=false

//pkgs.dev.azure.com/{ORG}/{PROJECT}/_packaging/{FEED}/npm/registry/:username=ANYTHING-BUT-EMPTY
//pkgs.dev.azure.com/{ORG}/{PROJECT}/_packaging/{FEED}/npm/registry/:_password=BASE64-ENCODED-PAT
//pkgs.dev.azure.com/{ORG}/{PROJECT}/_packaging/{FEED}/npm/registry/:email={EMAIL}
/pkgs.dev.azure.com/{ORG}/{PROJECT}/_packaging/{FEED}/npm/registry/:always-auth=true

Despite generating the PAT multiple times with different scopes, none have proven successful. (PAT generation takes place from User Settings -> Security in Azure DevOps)

On a positive note, I am able to establish a connection to the feed from my local machine using the vsts-npm-auth package.

Answer №1

Troubleshooting authentication issues in Azure DevOps pipeline while connecting to private npm registry

As per the guidelines provided in the documentation Set up your client's npmrc, it is recommended to store the credentials in a .npmrc file located in $home directory for Linux or Mac systems, and in $env.HOME for Windows systems on the development machine rather than in the project's .npmrc file.

In your development environment, ensure that there is a .npmrc file in $home for Linux or Mac systems, or in $env.HOME for Windows systems. This .npmrc file should include credentials for all required registries. The NPM client will refer to the project's .npmrc, identify the registry, and fetch necessary credentials from $home/.npmrc or $env.HOME/.npmrc. More details on credential acquisition can be found in the subsequent section.

Additionally:

Create a project-specific .npmrc file with only the registry information obtained from the "Connect to Feed" dialog. Do not include any credentials in this file, and typically place it next to your project's package.json.

If using a hosted agent, consider utilizing the npm Authenticate task for proper certification.

I hope these suggestions prove helpful.

Answer №2

In my situation, I found it necessary to include a specific npmAuthenticate action in order to authenticate with the private NPM registry using the credentials within the pipeline prior to running the step that executes npm install or yarn install. Here is an example of how this can be achieved:

- task: npmAuthenticate@0
  inputs:
    workingFile: "$(Build.SourcesDirectory)/path/to/my/.npmrc"

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