topic Re: Dynatrace App install error SELF_SIGNED_CERT_IN_CHAIN in Developer Q&A Forum

Dynatrace App install error SELF_SIGNED_CERT_IN_CHAIN

Sachinpai — Mon, 17 Jun 2024 18:47:37 GMT

I was trying to follow the Sample App creation document Five minutes to your first app | Dynatrace Developer.

Getting error while running npx dt-app@latest create --environment-url <URL>

Searching for template repositories...Error reading repository archive: TypeError: fetch failed
at node:internal/deps/undici/undici:12618:11
at process.processTicksAndRejections (node:internal/process/task_queues:95:5) ause: Error: self-signed certificate in certificate chain
at TLSSocket.onConnectSecure (node:_tls_wrap:1659:34)
at TLSSocket.emit (node:events:517:28)
at TLSSocket._finishInit (node:_tls_wrap:1070:8)
at ssl.onhandshakedone (node:_tls_wrap:856:12) {
code: 'SELF_SIGNED_CERT_IN_CHAIN'

Re: Dynatrace App install error SELF_SIGNED_CERT_IN_CHAIN

sinisa_zubic — Wed, 19 Jun 2024 09:06:15 GMT

Hi @Sachinpai

Maybe there is somewhere a firewall in place which does SSL termination and therefore you are getting this error.
To disable ssl check you can do following

on Windows (powershell), run following command

$Env:NODE_TLS_REJECT_UNAUTHORIZED='0'; & npx dt-app@latest create

On Linux/unix, run following command:

NODE_TLS_REJECT_UNAUTHORIZED='0' npx dt-app@latest create

Please let me know if this has solved your issue

Best,
Sini

Re: Dynatrace App install error SELF_SIGNED_CERT_IN_CHAIN

Sachinpai — Thu, 20 Jun 2024 13:43:53 GMT

Thanks @sinisa_zubic . Solution worked.

Re: Dynatrace App install error SELF_SIGNED_CERT_IN_CHAIN

aaron2 — Tue, 23 Jul 2024 16:04:47 GMT

In PowerShell, I tried setting

$Env:NODE_TLS_REJECT_UNAUTHORIZED='0'

and then running

npx dt-app@latest create

and was left with the same error. Any ideas? I am stuck here and wondering why it worked for everyone else.

Re: Dynatrace App install error SELF_SIGNED_CERT_IN_CHAIN

sinisa_zubic — Thu, 25 Jul 2024 09:38:22 GMT

you need to set the environment variable and run the command in the same line. In your screen shot I see you have separated that.

Just copy this into powershell and hit enter

$Env:NODE_TLS_REJECT_UNAUTHORIZED='0'; & npx dt-app@latest create