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@jomoespe
jomoespe / LambdaExceptionUtil.java
Last active December 22, 2023 12:36
Utility class to handle checked exceptions from
/**
* Utility class to handle checked exceptions in lambdas.
* <p>
* From <a href="http://stackoverflow.com/questions/27644361/how-can-i-throw-checked-exceptions-from-inside-java-8-streams">How can I throw CHECKED exceptions from inside Java 8 streams?</a>.
* This class helps to handle checked exceptions with lambdas. Example, with Class.forName method, which throws checked exceptions:
* </p>
* <pre>
* Stream.of("java.lang.Object", "java.lang.Integer", "java.lang.String")
* .map(rethrowFunction(Class::forName))
* .collect(Collectors.toList());
@diegopacheco
diegopacheco / java8-centos-amazon-linux.md
Last active October 25, 2022 18:17
How to Install Java 8 in CentOS / Amazon Linux?
# Remove java 7
sudo yum remove -y java

# Install basic packages
sudo yum install -y git

# Download and install java 8
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.tar.gz"
tar -xzvf jdk-8u131-linux-x64.tar.gz
## Obtain Token and Invoke Service
@strongant
strongant / SpringBootJUnitTest.md
Last active May 28, 2018 15:36
SpringBoot单元测试demo

对SpringBoot项目进行单元测试

  1. http://start.spring.io/ 选择要测试的SpringBoot版本,这里选择“1.5.4.RELEASE”。
  2. 选择需要添加的模块依赖:选择spring-boot-starter-actuator和spring-boot-starter-test
  3. 点击生成项目按钮
  4. 解压项目压缩包
  5. 导入IDEA
  6. 在src/java 目录下新建具体的测试Controller,如创建HelloWorldController.java 测试Controller:
package com.example.springbootjunittest.controller;
@karthik101
karthik101 / Readonly user for Kubernetes Dashboard.md
Last active June 12, 2023 16:32
Read only user for Kubernetes Dashboard

The view ClusterRole doesn’t actually have permissions for the Cluster level objects like Nodes and Persistent Volume Claims. So we’ll have to create a new RBAC config.

First, we’ll create a new dashboard-viewonly ClusterRole:

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: dashboard-viewonly
@sgyyz
sgyyz / uao.md
Last active May 3, 2024 14:15
uao command - unzip your project and import to intellij automatically
  1. import project into idea command
$ curl -L "https://gist.githubusercontent.com/chrisdarroch/7018927/raw/9a6d663fd7a52aa76a943fe8a9bc6091ad06b18d/idea" -o /usr/local/bin/idea
$ chmod +x /usr/local/bin/idea
  1. unzip and open project command
$ curl -L "https://gist.githubusercontent.com/sgyyz/adfa4f05af3d81cf0e17e19cf7044c85/raw/b6b9e871d5a4f5435a09d00b0a52e3db0b90699a/uao.sh" -o /usr/local/bin/uao.sh
$ chmod +x /usr/local/bin/uao.sh
$ ln -sf /usr/local/bin/uao.sh /usr/local/bin/uao
@knyar
knyar / csv.sh
Last active May 10, 2023 14:09 — forked from dolik-rce/nginx.conf
Nginx-lua-prometheus benchmark #3
#!/bin/bash
set -e -u -o pipefail
commits="1e13e22c 0.20200420 avoid-get_keys"
modes="parallel serial none"
output=results.csv
echo -n 'num_metrics' > $output
for mode in $modes; do
for commit in $commits; do
@mehmetcemyucel
mehmetcemyucel / FeignConfiguration.java
Created May 25, 2020 15:37
keycloak-feign-resttemplate
package com.cem.oauth2.configuration.feign;
import com.cem.oauth2.configuration.AuthProperties;
import feign.RequestInterceptor;
import org.keycloak.OAuth2Constants;
import org.springframework.cloud.security.oauth2.client.feign.OAuth2FeignRequestInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.oauth2.client.DefaultOAuth2ClientContext;
import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;

This gist describes the configuration required for Spring reactive WebClient to make a call to an OAuth2 protected resource through OAuth2.0 Client Credentials Grant Type Flow.

Assumption is that the Authorization Server supports OpenId Connect 1.0 specifications.

@dasniko
dasniko / _keycloak-cluster-config.md
Last active February 23, 2025 16:29
How to configure a keycloak cluster properly (legacy Wildfly edition)

Keycloak Cluster Configuration (How to) - Legacy Wildfly Distribution!!!

This is a short and simple example on how to build a proper Keycloak cluster, using JDBC_PING as discovery protocol and an NGINX server as reverse proxy.

As this is for legacy Keycloak version (Wildfly based, up until version 17), you can find an example for more current and uptodate versions at this gist here: https://gist.github.com/dasniko/3a57913047af3ca1b6b0a83b294dc1a1


Please see also my video about Keycloak Clustering: http://www.youtube.com/watch?v=P96VQkBBNxU