Sebastian Higuita Castañeda enspdf

How install and config Java 11 on PopOS

Introduction

PopOS is created from Ubuntu, so the configuration for Java environment can be follow the same way. We need only install the new version from the JDK and automatically it will be set as default. However, if you like rollback to previously version that was installed before, you can use the last step to do that.

Steps

Install the JDK 11

sudo apt update

When we were trying to create a docker image for our Node JS based application, we chose to use the official Node docker image (~700MB). On top of that we need to add the node modules, business logic, etc and so on. The final image size was staggering (~1.2GB). It was not what we wanted. Secondly, the average build time to do NPM install and run a grunt task totally took 15 minutes for every build. I am not even talking about the pain of configuring this for different CI/CD pipelines and environments.

The initial docker file was looking something like this:

Initial Docker File

FROM node:6.10.1-alpine

#How you get Sail.js running on Openshift#

This instruction is tested with:

Sails.js v0.9.16
Node.js 0.10 on Openshift ( 05 May 2014)

###1) package.json

If you use the package.json build by sails new Projectname than you have to add a few fields for openshift – so the server can start you app automatically. Sails uses Grunt to build minify css/js and so on. Openshift dont have grunt installed so you have to add this also.

	// ES6 version using asynchronous iterators, compatible with node v10.0+

	const fs = require("fs");
	const path = require("path");

	async function* walk(dir) {
	for await (const d of await fs.promises.opendir(dir)) {
	const entry = path.join(dir, d.name);
	if (d.isDirectory()) yield* walk(entry);
	else if (d.isFile()) yield entry;

	#!/bin/sh

	# To run, download the script or copy the code to a '.sh' file (for example 'fluttercleanrecursive.sh') and run like any other script:
	# sh ./fluttercleanrecursive.sh
	# or
	# sudo sh fluttercleanrecursive.sh

	echo "Flutter Clean Recursive (by jeroen-meijer on GitHub Gist)"
	echo "Looking for projects... (may take a while)"

	// JS

	// register modal component
	Vue.component('modal', {
	template: '#modal-template'
	})

	// start app
	new Vue({
	el: '#app',

	$ brew update && brew doctor # Repeat, until you've done all the Dr. has ordered!
	$ brew install postgresql # You'll need postgres to do this... you may also need to 'initdb' as well. Google it.

	$ brew install elixir
	$ mix local.hex # Answer y to any Qs
	$ createuser -d postgres # create the default 'postgres' user that Chris McCord seems to like -- I don't create mine w/a pw...

	# Use the latest Phoenix from here: http://www.phoenixframework.org/docs/installation -- currently this is 1.0.3
	# Answer y to any Qs
	$ mix archive.install https://github.com/phoenixframework/phoenix/releases/download/v1.0.3/phoenix_new-1.0.3.ez

	curl -X POST http://localhost:8081/api/experimental/dags/hello_world_a/dag_runs -H 'Cache-Control: no-cache' -H 'Content-Type: application/json' -d '{"conf":"{\"task_payload\":\"payload1\"}"}'
	curl -X POST http://localhost:8081/api/experimental/dags/hello_world_a/dag_runs -H 'Cache-Control: no-cache' -H 'Content-Type: application/json' -d '{"conf":"{\"task_payload\":\"payload2\"}"}'
	curl -X POST http://localhost:8081/api/experimental/dags/hello_world_a/dag_runs -H 'Cache-Control: no-cache' -H 'Content-Type: application/json' -d '{"conf":"{\"task_payload\":\"payload3\"}"}'