Continuous Delivery Pipelines

Aug 9, 2019
Apr 22, 2020

deployment

CI/CD

IMAGE GALLERY (3)

Continuous Methodologies

Continuous Integration - CI: is the practice of merging all developers’ working copies to a shared mainline several times a day; Automate a build; Code Quality Reports; Self-testing build and code at every commit; Browser Performance Testing; Everyone can see the results
Continuous Delivery- CD manually: Practise of ensuring automatedly that s/w can be relased reliably any time.
Continuous Deployment CD automatically: similar to CD

Gitlab runner

Gitlab Runner: runs jobs and sends results back to Gitlab; opensource project written in go, single binary file; Install and register Gitlab Runner; Gitolab runner commands

Installing runner

curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.deb.sh | sudo bash

Runner operating instructions

There are several available EXECUTORS

SSH
Shell
VirtualBox
Docker
Kubernetes

Further Gitlab Ci Examples


image: ruby:2.3

pages:
  script:
  - bundle install
  - bundle exec jekyll build -d public
  artifacts:
    paths:
    - public
  only:
  - master

Tells gitlab-runner to use docker executor with mentioned image
Name of the job
Actual commands to run for the job
Collect artifacts after running the script


gitlab-runner register \
  --non-interactive \
  --url "https://gitlab.com/" \
  --registration-token "PROJECT_REGISTRATION_TOKEN" \
  --description "python-3.5" \
  --executor "docker" \
  --docker-image python:3.5 \
  --docker-postgres latest

Docker container linking

trap: perform an action when the shell receives a signal; HUP INT QUIT ILL TRAP ABRT BUS FPE KILL USR1 SEGV USR2 PIPE ALRM TERM STKFLT CHLD CONT STOP TSTP TTIN TTOU URG XCPU XFSZ VTALRM PROF WINCH POLL PWR SYS; trap cleanup EXIT; trap cleanup SIGINT SIGTERM SIGQUIT
id: print real and effective user and group IDs; uid=1000(avi) gid=1000(avi) groups=1000(avi),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),116(lpadmin),126(sambashare),127(docker),130(libvirt)
getent: get entries from Name Service Switch libraries; getent group; getent passwd
ufw: program for managing a netfilter firewall
tr: translate or delete characters; tr -d ' '; echo "avi m" | tr --delete 'av' i m
tput: initialize a terminal or query terminfo database; tput init
timesyncd.conf, timesyncd.conf.d: Network Time Synchronization configuration files