ttekun

step 1

• learn the basics of Git
• Learn Git

step 2

• Understanding the GitHub Flow
• GitHub Cheat Sheet
• git-guide

step 3

ttekun

# scala install
wget www.scala-lang.org/files/archive/scala-2.11.7.deb
sudo dpkg -i scala-2.11.7.deb

 
# sbt installation
echo "deb https://dl.bintray.com/sbt/debian /" | sudo tee -a /etc/apt/sources.list.d/sbt.list
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 642AC823
sudo apt-get update
sudo apt-get install sbt

ttekun

Create Oracle XE(CentOS) docker image within 10 minutes

0. vagrant up (coreos-vagrant)

$ git clone https://github.com/coreos/coreos-vagrant.git
$ cd coreos-vagrant
$ vagrant up
$ vagrant ssh

ttekun

sudo sh -c "wget -qO- https://get.docker.io/gpg | apt-key add -"
sudo sh -c "echo deb http://get.docker.io/ubuntu docker main\ > /etc/apt/sources.list.d/docker.list"
sudo aptitude update
sudo aptitude install lxc-docker

ttekun

Spring Boot Testing

Using Configuration in Tests

The following snippets loads the application context with the configuration given in TestConfiguration.class

@RunWith(SpringRunner.class)

ttekun

Mount Separately
----------------
# mount nvme SSDs to /dataN when available for specific instance types
# There are only 4 nvme slots in r5 instances. /dev/nvme0n1 is root EBS volume.
for i in $(seq 1 4); do
  if [ -e "/dev/nvme${i}n1" ]
  then
    echo "Mounting /dev/nvme${i}n1 to /data${i}"
    sudo mkfs.ext4 -E nodiscard /dev/nvme${i}n1
    sudo mkdir -p /data${i}