Docker Practitioner Runbook

Docker Lab 1 : Python Application Deployment using Docker

Pre-requisites :
Install docker

  • Install docker compose

Steps to setup pre-requisites :

  • sudo apt-get update
  • sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
  • curl -fsSL | sudo apt-key add –
  • sudo add-apt-repository “deb [arch=amd64] $(lsb_release -cs) stable”
  • sudo apt-get install docker-ce docker-ce-cli
  • docker -version
  • docker
  • clear
  • apt install docker-compose
  • docker-compose –version

Steps to deploy application
Create a folder ——————————– DONE
Create required files under above folder

  2. Dockerfile
  3. compose.yaml file
  4. requirements file
  5. Run “docker-compose up” command (with this command we can check the log)

Result :

Below two docker containers will be deployed
Python Application
Redis database container

We should be able to browse the application using publicIP:port or localhost:port

in the web application, we can see the no of hits or count incrementing for every hit along with the IP address from which hit occurred.

Useful commands:

root@22fa3c5b802c:~# docker network ls
NETWORK ID     NAME                         DRIVER    SCOPE
b0a3f811c870   bridge                       bridge    local
65149a90b8b4   host                         host      local
993d7d7676b8   kind                         bridge    local
aab2bdd65a7a   none                         null      local
effd765af591   prometheus-grafana_default   bridge    local
cdc2d980e45e   sree_mfhnetwork              bridge    local
root@22fa3c5b802c:/home/sree# docker-compose down
Stopping sree_web_1   ... done
Stopping sree_redis_1 ... done
Removing sree_web_1   ... done
Removing sree_redis_1 ... done
Removing network sree_mfhnetwork

Action Items:
What is flask library in Python does – c o Kaushal
From which version of Docker did “docker container” deprecated – c o Shankar

Next Step:

Deploy above application in Kubernetes
Deploy sonarqube using docker
Deploy sonarqube using K8s

Extras :

Setting up authentication to Github

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