NVM not found in AWS CI-CD Pipeline - amazon-web-services

Question

I am new to create a pipeline in aws. I want to create a ci-cd pipeline for my nuxt project.
I create a yml file in which I want to install nvm and then install node version 12.18.3
The problem is I am getting the nvm not found error.
Can you please check and let me know if there is any error in my yml file:
version: 0.2
phases:
install:
commands:
- echo Installing nvm...
- curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
- export NVM_DIR="$HOME/.nvm"
- '[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"'
- '[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"'
pre_build:
commands:
#install dependencies
- echo Installing node...
- nvm install 12.18.3
- echo Installing npm...
- npm install
build:
commands:
#build
- echo building...
- npm run generate
artifacts:
files:
- '**/*'
base-directory: dist
cache:
paths:
- node_modules/**/*
Thank you.

Answer 1

You don't actually need to use nvm to install specific node.js version on AWS CodeBuild.
You can use runtime-versions option which would install some version, but you don't have much control over this.
phases:
install:
runtime-versions:
nodejs: 12.x
But AWS standard 5 image comes with n preinstalled (haven't checked 4 but it should be there as well), so you can use it like:
phases:
install:
commands:
- n 12.18.3
and it would install that version same as nvm.

Answer 2

Working Solution
For some reason, It doesn't recognize nvm in the next line. I did not get a chance to investigate it further. The following configuration works. The idea is to set the nvm configurations and install node in the same line.
version: 0.2
phases:
install:
commands:
- echo Installing nvm...
- curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
- export NVM_DIR="$HOME/.nvm"
- '[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"'
- '[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"'
pre_build:
commands:
#install dependencies
- . "$NVM_DIR/nvm.sh" && nvm install 12.18.3 && echo "node installed by arun"
- echo Installing node...
#- nvm install 12.18.3
- echo Installing npm...
- npm install
build:
commands:
#build
- echo building...
- npm run generate
cache:
paths:
- node_modules/**/*
Troubleshoot in local environment.
In order to troubleshoot the buildspec.yaml, you can run the build locally. here is how to run the buildspec locally.