patoi

react+ts+vite+pnpm

pnpm init @vitejs/app app -- --template react-ts
cd app
pnpm install
git init && git add -A && git commit -m "initial commit"
#pnpm run build
pnpm run dev

patoi

# Generate a unique private key (KEY)
sudo openssl genrsa -out mydomain.key 2048

# Generating a Certificate Signing Request (CSR)
sudo openssl req -new -key mydomain.key -out mydomain.csr

# Creating a Self-Signed Certificate (CRT)
openssl x509 -req -days 365 -in mydomain.csr -signkey mydomain.key -out mydomain.crt

# Append KEY and CRT to mydomain.pem

patoi

JDK 8 Released

Most of us won’t be able to use/deploy JDK 8 in production for a looong time. But that shouldn’t stop us from using it, right?

It should be possible to sneak in JDK 8 in the back way, the same way we snuck in Groovy and other libraries we wanted to use.

The Test Suite to the rescue

The Maven compiler plugin run in two separate lifecycles, compile and testCompile. Those can be configured separately.

patoi

#Container Resource Allocation Options in docker-run You have various options for controlling resources (cpu, memory, disk) in docker. These are principally via the docker-run command options.

##Dynamic CPU Allocation -c, --cpu-shares=0
CPU shares (relative weight, specify some numeric value which is used to allocate relative cpu share)

##Reserved CPU Allocation

patoi

import oracle.ons.ONS;
import oracle.ons.SenderThread;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.ReflectionUtils;

import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

patoi

  @Bean 
  EmbeddedServletContainerCustomizer containerCustomizer(
        @Value("${keystore.file}") Resource keystoreFile,
        @Value("${keystore.pass}") String keystorePass) throws Exception {

      String absoluteKeystoreFile = keystoreFile.getFile().getAbsolutePath();
      
      return (ConfigurableEmbeddedServletContainer container) -> {

          if (container instanceof TomcatEmbeddedServletContainerFactory) {

patoi

Pub/sub with MongoDB and Node.js

Setup:

$ mongo
> use pubsub
> db.createCollection('messages', { capped: true, size: 100000 })
> db.messages.insert({})