topic Re: Is there a recommended base Docker image for a NodeJS app? in Splunk AppDynamics

Is there a recommended base Docker image for a NodeJS app?

CommunityUser — Tue, 22 Jan 2019 14:25:31 GMT

Is there an official recommendation for a base Docker image running NodeJs? We are trying to instrument a NodeJS application using an Alpine-based Docker image (node:carbon-alpine) and ran into problems launching the proxy. I've been trying to set it up as proxyless (libagent:true) but now I'm running into logging errors. I started thinking that perhaps we should switch to a different base image. Below is the logging error in case anyone has seen this before...

^ Log file removed by @Ryan.Paredez. We recommend that log files not be shared in the forums for security and privacy reasons

Re: Is there a recommended base Docker image for a NodeJS app?

Abhimanyu_Arora — Tue, 22 Jan 2019 14:59:37 GMT

Hi Steven,

I guess you are trying to install the nodejs agent through npm? In case of alpine, you have to download the agent binaries from our download zone -

https://download.appdynamics.com/download/#version=&apm=nodejs&os=&platform_admin_os=&events=&eum=&page=1

Let me know if this helps.

Also as an alternative you can also try node-slim docker image if you wish to use npm for agent installation.

Thanks

Abhimanyu

Re: Is there a recommended base Docker image for a NodeJS app?

CommunityUser — Tue, 22 Jan 2019 15:24:04 GMT

Hi Abhimanyu,

You are correct - I am trying to install 4.5.4 using npm. I tried switching to carbon-slim and got the same error. I removed libagent config and tried again and got a new error:

Appdynamics agent cannot be initialized due to Error: /development/docker/app/node_modules/appdynamics-protobuf/protobuf_for_node.node: invalid ELF header
Error: /development/docker/app/node_modules/appdynamics-protobuf/protobuf_for_node.node: invalid ELF header
at Object.Module._extensions..node (module.js:682:18)
at Module.load (module.js:566:32)
at tryModuleLoad (module.js:506:12)
at Function.Module._load (module.js:498:3)
at Module.require (module.js:597:17)
at require (internal/module.js:11:18)
at requireProtobufBinding (/development/docker/app/node_modules/appdynamics-protobuf/index.js:29:11)
at Object.<anonymous> (/development/docker/app/node_modules/appdynamics-protobuf/index.js:33:18)
at Module._compile (module.js:653:30)
at Object.Module._extensions..js (module.js:664:10)

I will try the download and give it a shot...

Re: Is there a recommended base Docker image for a NodeJS app?

CommunityUser — Thu, 31 Oct 2019 17:59:25 GMT

How do you install the file downloaded from AppD downloads section? Are there any instructions?