使用Heroku CLI时遭遇SELF_SIGNED_CERT_IN_CHAIN错误的解决咨询

Hey there, I’ve dealt with this exact headache multiple times—usually when working behind a corporate proxy, using local SSL inspection tools, or with outdated CLI versions. Let’s break down the solutions from quick (but risky) to proper, long-term fixes:

Quick Temporary Workaround (Not Recommended for Production) #

If you just need to run a command urgently and don’t mind skipping SSL verification temporarily:

• On Linux/macOS: Run this in your terminal first:

  export NODE_TLS_REJECT_UNAUTHORIZED=0
  

• On Windows Command Prompt:

  set NODE_TLS_REJECT_UNAUTHORIZED=0
  

• On Windows PowerShell:

  $env:NODE_TLS_REJECT_UNAUTHORIZED=0
  

Important: Remember to revert this after you’re done! Use unset NODE_TLS_REJECT_UNAUTHORIZED (Linux/macOS) or set NODE_TLS_REJECT_UNAUTHORIZED= (Windows cmd) to re-enable SSL security.

Proper Long-Term Fix: Configure Trusted CA Certificates #

This is the safe, sustainable approach—tell Heroku CLI to trust your network’s self-signed certificate:

1. Locate your organization’s CA certificate file (usually a .pem or .crt file). If you’re on a Linux system, you can often use the system’s default CA bundle with this command to get its path:

   openssl version -d | cut -d'"' -f2
   

   The cert file is usually named cert.pem in that directory.
2. Set the HEROKU_SSL_CERT environment variable to point to your CA file:
   • Linux/macOS (add this to your ~/.bashrc, ~/.zshrc, etc., to make it permanent):

     export HEROKU_SSL_CERT="/full/path/to/your/ca-cert.pem"
     

   • Windows (add this to your system environment variables to make it permanent):

     set HEROKU_SSL_CERT="C:\full\path\to\your\ca-cert.pem"
     

3. Restart your terminal and test the Heroku commands again—they should now trust the certificate chain.

Update Heroku CLI to the Latest Version #

Outdated CLI versions sometimes have outdated root CA certificates that don’t trust newer valid certificates. Update it with:

heroku update

If the update command itself fails due to the same SSL error, download the latest installer directly from Heroku’s official distribution sources.

Check Proxy/Firewall Settings #

If you’re on a corporate network, your proxy might be intercepting SSL traffic. Make sure Heroku CLI is configured to use your proxy:

• Set the http_proxy and https_proxy environment variables:
  • Linux/macOS:

    export http_proxy=http://your-proxy-host:port
    export https_proxy=http://your-proxy-host:port
    

  • Windows:

    set http_proxy=http://your-proxy-host:port
    set https_proxy=http://your-proxy-host:port
    

• If your proxy requires authentication, include your credentials in the URL: http://username:password@proxy-host:port

内容的提问来源于stack exchange，提问作者jim