petrbouda

Memory LIMIT and REQUEST in Containers and JVM

• Do you run a JVM inside a container on Kubernetes (or maybe OpenShift)?
• Do you struggle with REQUEST and LIMIT parameters?
• Do you know the impact of those parameters on your JVM?
• Have you met OOM Killer?

Hope you will find answers to these questions in this example-based article.

How to set up JVM Heap size in a Container

glendaviesnz

import { ComponentFixture, TestBed, async, inject, fakeAsync, flush } from '@angular/core/testing';
import {
    MatCheckboxModule,
    MatSelectModule
} from '@angular/material';
import { By } from '@angular/platform-browser';

import { SelectMenuTestHelper } from './select-menu-test.helper';

describe('SelectOptionComponent', () => {

jamescookie

Mocking HttpClient calls in Angular 2 when using Protractor

I just started writing an app using Spring Boot/Angular 2 combo. Once I had the initial demo up and working and cracked wiring in Spring security (another blog entirely), my attention turned to writing some tests that would drive the next phases.

My Spring Boot back-end can be unit/integration tested on it's own. I was interested in making sure the user experience was tested. Tradionally I might have turned to Geb for a full server side project, but this is mostly just javascript and I know how fast Jasmine/Karma tests run, so there must be a nice way of doing this?

Indeed I was not disappointed to find that Angular ng new webapp had already created me a e2e folder with a skeleton Protractor test to point the way.

But how to stub out the back-end? I have used many mocking frameworks before; Sinon, for example, is excellent in unit tests. There must by a simple way of doing it for Protractor/An

blaisep

Suppose you want to inject a credential into a Pipeline script. The cloudbees note does not include Pipeline script examples. https://support.cloudbees.com/hc/en-us/articles/203802500-Injecting-Secrets-into-Jenkins-Build-Jobs

The Jenkins Pipeline Docs' description of the git pushmethod doesn't have an example using injected credentials. (https://jenkins.io/doc/pipeline/examples/#push-git-repo)

The Snippet generator is helpful, but not not if you try to follow the instructions at: https://wiki.jenkins-ci.org/display/JENKINS/Credentials+Binding+Plugin

Faheetah

node {
    echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
    echo 'No quotes, pipeline command in single quotes'
    sh 'echo $BUILD_NUMBER' // 1
    echo 'Double quotes are silently dropped'
    sh 'echo "$BUILD_NUMBER"' // 1
    echo 'Even escaped with a single backslash they are dropped'
    sh 'echo \"$BUILD_NUMBER\"' // 1
    echo 'Using two backslashes, the quotes are preserved'
    sh 'echo \\"$BUILD_NUMBER\\"' // "1"

viktorklang

import scala.concurrent.duration._
import scala.concurrent.ExecutionContext
import scala.concurrent.Future
import akka.pattern.after
import akka.actor.Scheduler

/**
 * Given an operation that produces a T, returns a Future containing the result of T, unless an exception is thrown,
 * in which case the operation will be retried after _delay_ time, if there are more possible retries, which is configured through
 * the _retries_ parameter. If the operation does not succeed and there is no retries left, the resulting Future will contain the last failure.