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Some Jenkinsfile examples

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Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

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FROM ruby:alpine

RUN apk add build-base && \
    rm -rf /var/cache/apk/*

RUN mkdir /app
COPY . /app/

WORKDIR /app
RUN bundle install

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package hello;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;

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package hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class App {

    public static void main(String[] args) {
        SpringApplication.run(App.class, args);

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plugins {
    // Apply the java plugin to add support for Java
    id 'java'

    // Apply the application plugin to add support for building a CLI application.
    id 'application'

    // Spring Boot plugins
    id 'org.springframework.boot' version '2.0.5.RELEASE'
    id 'io.spring.dependency-management' version '1.0.7.RELEASE'

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sudo yum install -y yum-utils

sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo
    
sudo yum install -y docker-ce docker-ce-cli containerd.io
sudo systemctl start docker && sudo systemctl enable docker

sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/bin/docker-compose

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sudo amazon-linux-extras install -y docker
sudo systemctl enable docker && sudo systemctl start docker
sudo usermod -a -G docker ec2-user
sudo curl -L "https://github.com/docker/compose/releases/download/1.28.6/docker-compose-$(uname -s)-$(uname -m)" -o /usr/bin/docker-compose
sudo chmod +x /usr/bin/docker-compose

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curl -fLo ~/.vim/autoload/plug.vim --create-dirs \
  https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  
cat << 'EOF' > ~/.vimrc
syntax on
filetype plugin indent on

call plug#begin('~/.vim/plugged')
Plug 'morhetz/gruvbox'
Plug 'sainnhe/gruvbox-material'

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sudo amazon-linux-extras install -y epel
sudo yum install -y ansible

mkdir ~/ansible

cat << 'EOF' > ~/.ansible.cfg
[defaults]
inventory=~/ansible/hosts
roles_path= ~/ansible/roles
retry_files_enabled=False