Git | Docker | Jenkins | Nginx | Deployments

[raunak-r]

GIT

• https://betterprogramming.pub/git-commands-that-i-use-almost-on-daily-basis-33fbef3c5f62

• https://product.hubspot.com/blog/git-and-github-tutorial-for-beginners

• https://git-scm.com/book/en/v2/Git-Branching-Basic-Branching-and-Merging

• https://about.gitlab.com/blog/2018/06/07/keeping-git-commit-history-clean/

• On undoing, fixing, or removing commits in git

• Fixing SSL ERRORS
  git - github: server certificate verification failed - Stack Overflow

• Setting up GIT server on EC2
  https://stackoverflow.com/a/13150263/8110072
  https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html

• [] https://git-scm.com/book/en/v2/Git-on-the-Server-Setting-Up-the-Server

• Reducing Clone Time

Setting up SSH

1. Setup ssh over https
2. Setup ssh keys for git repo

[raunak-r]

DOCKER

• https://www.freecodecamp.org/news/docker-easy-as-build-run-done-e174cc452599/
• A beginner’s guide to Docker — how to create your first Docker application
• How To Docker Create Container, Change Container, Save as new image, and Connect to Container Step-By-Step PLUS much more – ITProGuru Blog
• Improving your data science workflow with Docker - Unsupervised Pandas
• [Dockerfile name in my case was Dockerfile-abcd so I had to fire: docker build -t my-custom-name -f /path_to_my_docker_file/Dockerfile-abcd .] (https://stackoverflow.com/a/47820968/8110072)

Optimizations

• Optimizing Docker Files
• Optimizing ng build --prod in Docker
• https://serverfault.com/questions/330532/xvda1-is-100-full-what-is-it-how-to-fix

Helped me to know that it was the docker container that was talking all my space so i push all my container to my docker registry then did sudo rm -rf /var/lib/docker/ it cleared up my space :) hope it helps someone :)
> sudo rm -rf /var/lib/docker/
> sudo service docker restart

• https://stackoverflow.com/a/56839406/8110072

Commands

• sudo docker rmi $(sudo docker images -q) -f

• sudo docker system prune

• BUILD
  --- sudo docker build --network=host -t ImageName .
  --- sudo docker build --network=host -t imageName -f ./filepath/dockerfile .

• RUN
  --- sudo docker run -d --network=host ImageName
  --- sudo docker run -d --network=host -e environment='' --log-opt max-size=10m imageName

• RUNNING
  --- sudo docker ps -q

• STOP
  --- sudo docker stop CID
  --- sudo docker stop $(sudo docker ps -q)

• BASH
  --- sudo docker exec -it CID /bin/bash
  --- sudo docker exec -it $(sudo docker ps -q) /bin/bash # to access the bash of a running container.
  --- sudo docker run -it --entrypoint /bin/bash IMAGE_NAME # to run an image as a bash container.

• LOGS
  --- sudo docker logs CID --follow
  --- sudo docker logs $(sudo docker ps -q) --follow # when there is only image running.

Docker UI

docker run -d -p 9000:9000 -v /var/run/docker.sock:/var/run/docker.sock portainer/portainer
And point your browser to http://localhost:9000.

Study Notes

. -d arg to run container in background.
. see running images, stopping containers.
. network equal host mode to access local ips.
. putting env variables in dockerfile.
. connecting to local psql from docker instance

[raunak-r]

JENKINS

• Using Jenkins to Build and Deploy Python Web Applications - Part 2

• https://dzone.com/articles/jenkins-is-getting-oldand-we-need-an-alternative

[raunak-r]

Nginx

> user  nobody nogroup;
https://serverfault.com/a/901176

> Use sudo nginx -t to test the complete configuration file, which starts at nginx.conf and pulls in additional fragments using the include directive. See this document for more.

/etc/nginx/
> sudo nginx -t -c /etc/nginx/nginx.conf

# logs
> /usr/local/var/log/nginx/*
> tail -f /var/log/nginx/error.log
> tail -f /var/log/nginx/access.log /var/log/nginx/error.log

# angular routing
> https://stackoverflow.com/questions/35038155/how-to-redirect-all-angular-request-to-index-html-in-nginx

[raunak-r]

Kubernetes

• An introduction to Kubernetes.

[raunak-r]

Deployments

• Server differences of apache, nginx, django etc
• Practical DevOps Use Case: Using Github, Jenkins and Docker

#roadmap