skhatri

plugins {
  id "com.google.protobuf" version "0.8.12"
  id "java"
  id "idea"
}

sourceSets{
  main {
    java {

skhatri

This is an example of forwarding logs to elasticsearch using fluentd. In the process, it does use a custom time key.

The setup

Run Elasticsearch and FluentD locally

#run elasticsearch
docker run -e discovery.type=single-node -e xpack.security.enabled=false -p 9200:9200 -d elasticsearch:7.2.0
#install fluentd

skhatri

#!/bin/bash

for engine in jetty undertow tomcat reactor-netty
do
    java -Xms512m -Xmx512m -jar scripts/docker/tmp/${engine}.jar 2>&1 >> runtime.log &
    sleep 30
    pscount=$(pgrep -f "tmp/${engine}.jar"|wc -l)
    if [[ $pscount -ne 1 ]];
    then
        echo could not find "tmp/${engine.jar}"

skhatri

#!/bin/bash
# Expose GITHUB_TOKEN as environment variable to Travis

: "${GIT_URL=github.com/skhatri/covid-19-csv-to-api-data.git/}"
: "${TRAVIS_BUILD_NUMBER=0}"
: "${TRAVIS_EVENT_TYPE=trigger}"
: "${GITHUB_TOKEN='invalid'}"

now=$(date "+%Y-%m-%dT%H:%M:%S%z")
changes=$(git status -s|wc -l)

skhatri

Vault Login

vault token $YOUR_PRIVILEGED_TOKEN

Enable Cassandra Engine

Enable Cassandra Secrets Engine

vault secrets enable cassandra

skhatri

Load Test Results

source: https://github.com/skhatri/microservices-starter-java

Load Testing

---

400k requests with 50 connections and 20 concurrent streams

skhatri

import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

class Renderer {
    private void line() {
        System.out.println("***********************");
    }

skhatri

Create CA cert and self sign

openssl genrsa -out ca.key 2048
openssl req -new -x509 -key ca.key -out ca.crt -subj "/C=AU/ST=NSW/L=Sydney/O=Software Company/OU=IT/CN=me"

Create Server Key

KEY_FILE="server.p12"

skhatri

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"time"
)

type StatusOk struct {

skhatri

management:
  endpoints:
    web:
      exposure:
        include: health,info,prometheus,httptrace
  metrics:
    export:
      prometheus:
        enabled: true
  trace: