In this year we will be learning and exploring devops as one of our development goals.
What is DevOps?
DevOps is an amalgamation of two terms – developers and operations.
Development here refers to idea till you build your idea into a product or service.
Operations include everything after you have built your product. That means you are thinking about system administration,deployment,monitoring,security etc.
In this journey on learning devops, we will be using the pareto principle(80/20) rule to master the most useful and industry needed tools and technologies. We will concentrate on workflows not just tools.
Our Plan and Workflow
- Basic Usage
- Advanced Usage
- Building Something
- Teaching and Sharing What You’ve learn
Tools To Master
- Linux Bash
- Programming Languages(Python,Bash,Go,Nodejs,Julia)
- Hashicorp Tools
- Cloud Computing
Setting Up Our WorkSpace Locally
We will be setting up a workspace or a lab for our devops journey. So let us see what we will need for our workspace.
Linux – Ubuntu
- Docker -CE
- Windows Terminal or CMDer or Putty
How to Install Docker on Ubuntu
Docker is a containerization software for building containers and images that virtualized the entire process you would have used a hardware for.
sudo apt install apt-transport-https ca-certificates curl software-properties-common curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo apt-key fingerprint 0EBFCD88
Add Docker to Apt Repo Locally
sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) \ stable"
Update,Download and Install Docker Community Edition
sudo apt-get update sudo apt-get install docker-ce docker-ce-cli containerd.io
Check Status of Docker
sudo systemctl status docker
Installing Virtual Manager or Virtualization
Let us check to see if our system has virtualization enabled with this code before installing kubernetes.
grep -E –color ‘vmx|svm’ /proc/cpuinfo
If there is an empty output, that means you have virtualization enabled other wise you will have to enable virtualization.
Installing QEMU-KVM – Virtual Machine Manager
Let us install Qemu-KVM a virtual machine manager on our system.
sudo apt-get install qemu-kvm qemu virt-manager virt-viewer libvirt-bin
To start your virtual manager you can type
You can then add the various OS as you wish
Installing VirtualBox on Ubuntu
You can also install virtualbox instead of KVM. Both are virtualization softwares that achieve the same thing. You can install virtualbox using either the software manager or via the commandline
sudo add-apt-repository multiverse && sudo apt-get update
sudo apt install virtualbox
How to Install Kubernetes or Minikube on Ubuntu
To work with kubernetes and minikube you will need to have virtualization enabled and then install kubectl as follows
curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl
Make the kubectl binary executable.
chmod +x ./kubectl
Move the binary in to your PATH.
sudo mv ./kubectl /usr/local/bin/kubectl
Test to ensure the version you installed is up-to-date:
Via Package Manager
Or You can use the second method via the package manager
sudo apt-get update && sudo apt-get install -y apt-transport-https curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee -a /etc/apt/sources.list.d/kubernetes.list sudo apt-get update sudo apt-get install -y kubectl
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \ && chmod +x minikube
How to add the Minikube executable to your path
sudo mkdir -p /usr/local/bin/ sudo install minikube /usr/local/bin/
Checking If minikube was installed
How to Add A VM Driver for minikube
There are several vm drivers that minikube support such as
- kvm2 (driver installation)
- hyperkit (driver installation)
- hyperv (driver installation) Note that the IP below is dynamic and can change. It can be retrieved with
- vmware (driver installation) (VMware unified driver)
minikube start --vm-driver=<driver_name> minikube start --vm-driver=<kvm2>
Go For Infrastructure
The Go programming language is very popular among the devops world and usually useful for infrastructure production and management. Hence we will have to add that know-how to our arsenal of skills.
Installing Go Lang on Ubuntu
Method 1 : Using Snap or Apt-get
sudo snap install go # version 1.13.5, or sudo snap info go # for more info about versions
Method 2 : Using Apt-get
sudo apt install golang-go sudo apt install gccgo-go
Method 3: Using The Downloaded tarball file
We will be downloading Go from their official website either manually or with curl
cd ~ curl -O https://dl.google.com/go/go1.13.5.linux-amd64.tar.gz
Extract in the Home Directory
tar xvf go1.13.5.linux-amd64.tar.gz
Create a go directory with our file and move that directory to the /usr/local
Move to /usr/local
sudo chown -R root:root ./go sudo mv go /usr/local
Adding /Setting Go To Paths
First, set Go’s root value, which tells Go where to look for its files inside the .profile file
sudo nano ~/.profile
At the end of the file, add this line:
export GOPATH=$HOME/work export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin
If you chose an alternate installation location for Go, add these lines instead to the same file. This example shows the commands if Go is installed in your home directory:
export GOROOT=$HOME/go export GOPATH=$HOME/work export PATH=$PATH:$GOROOT/bin:$GOPATH/bin
With the appropriate line pasted into your profile, save and close the file
Finally, refresh your profile by running:
You are good to go
Working With GCP
GCP – Google Cloud Platform
Installing GCP SDK
Using Apt-Get(For Debian and Ubuntu)
echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] https://packages.cloud.google.com/apt cloud-sdk main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
sudo apt-get install apt-transport-https ca-certificates gnupg
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key --keyring /usr/share/keyrings/cloud.google.gpg add -
sudo apt-get update && sudo apt-get install google-cloud-sdk
sudo apt-get install google-cloud-sdk-app-engine-python
You can now initialize it with the