Month: October 2020

Categories
AWS

Example React application on AWS Amplify

I followed the steps through this tutorial: https://aws.amazon.com/de/getting-started/hands-on/build-react-app-amplify-graphql/

I is mostly well documented. But I had some obstacles:

Build specification

I had to add the backend part to the build specification:

version: 1
backend:
  phases:
    build:
      commands:
        - '# Execute Amplify CLI with the helper script'
        - amplifyPush --simple
frontend:
  phases:
    preBuild:
      commands:
        - npm ci
    build:
      commands:
         - npm run build
  artifacts:
    baseDirectory: build
    files:
      - '**/*'
  cache:
    paths:
      - node_modules/**/*

Service role

I had to create and add a service role.

First create a service role in IAM console, named it "AmplifyConsoleServiceRole-AmplifyRole":

Then add this role in the general settings of the Amplify application:

Amplify CLI to latest version

I had to set the Live package updates for the Amplify CLI to the latest version in build image settings:

To be continued...

Unfortunately this took too much time, so I have to do the last steps (4: API and database; 5: storage) another time. Maybe there will be some other challanges I can write down here.

Categories
Development

Node.js

Install Node.js on Windows

I am following this instructions: https://docs.microsoft.com/de-de/windows/nodejs/setup-on-windows

Download Node Version Manager (nvm) for Windows: https://github.com/coreybutler/nvm-windows#node-version-manager-nvm-for-windows
Current version: 1.1.7; nvm-setup.zip

Open cmd or GitBash and run 'nvm ls' to see installed Node versions.

Some npm commands:

# Show installed Nodes
nvm ls
# Show available versions
nvm list available
# Install latest version
nvm install latest
# Install latest LTS version (list available -> currently 12.19.0)
nvm install 12.19.0
# Use latest LTS version
nvm use 12.19.0
# Show npm version
npm --version

Categories
Java

Git

Short installation guide for Git with GitBash, SourceTree for a simple visual user interface and Git Staging View in Eclipse.

Git and GitBash

Download: https://gitforwindows.org
Install with defaults.

As there was no HOME environment variable set, my Git took some other HOME-like variable (like HOMEPATH, not sure), and this is a network share, so my Git performance was sometimes very poor.
To fix this, just set a HOME variable to your 'normal' profile folder:

Set a persistent environment variable from cmd.exe

setx HOME %%USERPROFILE%%

'set' sets your environment variable in your current shell only, persist it with 'setx'.

Another problem is, that the Git reporitory I tried to connect, has a SSL key signed by a non-public CA. This results to a "ssl pkix path validation failed" error.
To resolve this, I download the public certificate of the CA from webbrowser and add it to the truststore of Git.

Where is the cert store of git?

git config --system --list
http.sslcainfo={PathToGit}/mingw64/ssl/certs/ca-bundle.crt

To add the non-public CA cert to Git cert store just open ca-bundle.crt and the downloaded certificate with an text editor and copy the content of the certificate to the ca-bundle.

Additional I configured the sslBackend to the Windows Networking Layer:

# use SChannel, the built-in Windows networking layer. This means that it will use the Windows certificate storage mechanism and you do not need to explicitly configure the curl CA storage mechanism.
git config --global http.sslBackend schannel

Configure my user details:

git config --global user.name "Ingo Kaulbach"
git config --global user.email "ingo.kaulbach@covestro.com"

Some Git commands for Git configuration:

git config --local --list
git config --global --list
git config --system --list
 
git config --local --edit

Checkout / Clone of a project:

cd /path/to/my/workspace
git clone https://{Username}:{PersonalAccessToken}@gitlab.myserver.biz/project/project.git

SourceTree

Download: https://www.sourcetreeapp.com
Current Version: 3.3.9 (Windows)

Install with default settings, without Mercurial.

Open /path/to/my/workspace/project.

Eclipse

Open Windows -> Perspective -> Open Perspective -> Other -> Git.

In Git Repositories View: Add an existing local Git Repository to this view and open /path/to/my/workspace/project.

To Commit and Push changes only use the Git Staging view!!!