wubin1989

FROM mysql
ADD my.cnf /etc/mysql/my.cnf
CMD ["mysqld", "--datadir=/var/lib/mysql", "--user=mysql"]

wubin1989

DevSecOps - Top Four OpenSource SAST tools for your CI/CD pipeline

DevSecOps stands for Development, Security and Operations. DevSecOps involves introducing security practices and integrating tools earlier in the software development life cycle (SDLC), rather than treating security as a separate, post-development activity.

Static Application Security Testing (SAST) is one of the key security practices that can be integrated into DevSecOps. It is a type of security testing that analyzes the source code of an application to identify potential security vulnerabilities before the code is deployed. SAST tools scan the source code line by line, looking for security weaknesses such as buffer overflow, SQL injection, cross-site scripting (XSS), and other vulnerabilities that could be exploited by attackers. SAST can be done for a variety of programming languages, including C/C++, Java, Python, Ruby, and others. It can be integrated into a Continuous Integration/Continuous Deployment (CI/CD) pipeline, allowing de

wubin1989

package main

import (
	"context"
	"flag"
	"fmt"
	"io"
	"net"
	"net/http"
	"os"

wubin1989

// Hash 'string' to a small number (digits default: 6)
function hash(string, digits) {
  digits = digits || 6;
  var m = Math.pow(10, digits+1) - 1;
  var phi = Math.pow(10, digits) / 2 - 1;
  var n = 0;
  for (var i = 0; i < string.length; i++) {
    n = (n + phi * string.charCodeAt(i)) % m;
  }
  return n.toString();

wubin1989

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"io"
	"log"
	"sync/atomic"
	"time"

wubin1989

package main

import (
	"fmt"
	"bufio"
	"os"
	"strconv"
)

func ReadLinesFromFile(file_path string) ([]string, error) {

wubin1989

Two approaches to handle error responses from Spring WebClient calls globally:

• Exceptions with webclients are all wrapped in WebClientResponseException class. So we can handle that using Spring's ExceptionHandler annotation.

• Using ExchangeFilterFunction while constructing the webclient bean.

wubin1989

global:
  scrape_interval: 10s
scrape_configs:
  - job_name: node
    static_configs:
      - targets:
        - localhost:9100
  - job_name: python-app
    static_configs:
      - targets:

wubin1989

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

wubin1989

func (receiver *GoStatsImpl) LargestRemainderRpc(ctx context.Context, request *pb.PercentageReqVo) (*pb.LargestRemainderRpcResponse, error) {
	var payload vo.PercentageReqVo
	copier.DeepCopy(request, &payload)
	data, err := receiver.LargestRemainder(ctx, payload)
	if err != nil {
		return nil, err
	}
	var ret pb.LargestRemainderRpcResponse
	err = copier.DeepCopy(data, &ret.Data)
	if err != nil {