frankmanzhu

package demo.powermock;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import static org.junit.Assert.*;

frankmanzhu

First verify the version of Java being used is not Sun Java 8 SDK

java -version

Check the latest version a build numbers in http://www.oracle.com/technetwork/java/javase/downloads/index.html

For url http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91-linux-x64.tar.gz, the variables should be defined as:

java_base_version="8"
java_sub_version="102"

frankmanzhu

In my CentOS Linux release 7.1.1503 (Core)
The following configuration is working.

file: /lib/systemd/system/docker.service text:

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network.target docker.socket
Requires=docker.socket

frankmanzhu

Download Oracle jdk8

Log-in Raspberry Pi, enter the command to extract jdk-8-linux-arm-vfp-hflt.tar.gz to /opt directory.
$ sudo tar zxvf jdk-8-linux-arm-vfp-hflt.tar.gz -C /opt

Set default java and javac to the new installed jdk8.
$ sudo update-alternatives --install /usr/bin/javac javac /opt/jdk1.8.0/bin/javac 1
$ sudo update-alternatives --install /usr/bin/java java /opt/jdk1.8.0/bin/java 1

$ sudo update-alternatives --config javac

frankmanzhu

相信很多人和我一样，拿到小米路由玩了几天，感觉官方的步伐不够快不够激进。既然如此，何不自己动手丰衣足食呢？

背景知识

首先你得知道Linux的一些基本理论，比如什么是bash啊，cd、ls这些命令怎么用等等。

其次你还得知道一些编程相关的东西，因为文章专注于Node.js的编译，所以Node.js和C++的一些基本知识是要有的。

热身准备

frankmanzhu

Quick tutorial for beginners how to easily install Oracle Java JDK8 or JDK9 in Ubuntu 16.04 or Linux Mint 18 via PPA.

Webupd8 Team is maintaining a PPA repository with installer scripts for the latest Java 8 and 9, that automatically downloads the Java archive from Oracle website and sets up everything for you.

1. Add the PPA.

Open terminal (Ctrl+Alt+T) and run the command:

sudo add-apt-repository ppa:webupd8team/java

frankmanzhu

Install Cockpit on Ubuntu 16.04:

Cockpit repository for Ubuntu is less tested and irregularly updated, that does not mean it won’t work. Add a Cockpit repository on Ubuntu.

$ sudo add-apt-repository ppa:cockpit-project/cockpit

Update the apt cache database.

$ sudo apt-get update

frankmanzhu

application.yml

server:
  port: 8888

spring:
  cloud:
    config:
      server:
        svn:

frankmanzhu

Share Dir VBox

Share it first as auto mount
sudo usermod -G vboxsf -a frank

restart

sudo mount -t vboxsf -o uid=$UID,gid=$(id -g) AlertPublishedFolder /t3Data

frankmanzhu

I just worked out another flow to have Zero downtime (mainly for web apps).
Proxy

We use jwilder/nginx-proxy to handle routing to app servers, this will assist us in dynamically routing requests to services.
First Deploy

For the first deploy run docker-compose --project-name=app-0001 up -d.
Rolling Update

We edit the docker-compose.yml with the new image id and run docker-compose --project-name=app-0002 up -d. We now have version 0.2 of the app up and running. The load balancer will already begin routing requests, and given we are using nginx LB we will have 0 downtime.