DevOps on CloudAid

How SMBs Can Save on DevOps Engineer Salaries

Mon, 25 Sep 2023 10:07:21 +0600

DevOps engineers are among the most expensive hires in tech. Companies want faster releases and steadier infrastructure, and the people who can deliver both know what they’re worth. Industry salary surveys show DevOps pay climbing steadily over the past few years.

For a small or medium-sized business (SMB), that salary can be hard to justify. Outsourcing gives you access to the same skills from a global talent pool at a lower cost, and it lets you compete with larger companies that can afford a full in-house team.

From Docker to AWS ECS, Transitioning and Scaling with Elastic Container Service

Thu, 17 Aug 2023 10:07:21 +0600

Docker makes containers easy to build and run. Managing dozens or hundreds of them by hand gets hard as you grow. Amazon Elastic Container Service (ECS) runs, scales, and manages Docker containers for you. This post covers the differences, the migration steps, and what ECS gives you once you’re on it.

Understanding the Basics: Docker vs. AWS ECS

Docker: The Building Block

Docker packages an application and its dependencies into a single container, so it runs the same way in every environment. That ends most “it works on my machine” problems and makes deployments more predictable.

How to check file update on an S3 bucket and download latest version into the local folder

Tue, 18 Aug 2020 10:07:21 +0600

1- Install the AWS CLI on your server.

2- Run aws configure to add your AWS key and secret.

3- Run aws s3 ls to confirm the CLI works and you can access your S3 bucket.

4- Save the code below into a bash script file:

#!/bin/bash

aws s3 ls s3://MY-BUCKET > a.txt #get files list in S3 bucket
A=$(cat a.txt| md5sum | cut -d " " -f1) #get md5 checksum for a.txt
B=$(cat b.txt| md5sum | cut -d " " -f1) #get md5 checksum for b.txt


if [[ $A == $B ]] #If A==B, which means they are equal
then
echo "Nothing to update => " $(date +"%d-%m-%Y-%H-%M-%S") >> logs.txt
else
echo "We should update"
 rm -rf b.txt 
 rm -rf updatedPkg.zip

 aws s3 cp s3://MY-BUCKET/updatedPkg.zip ./updatedPkg.zip #Copy new file from S3 to local

 cp a.txt b.txt # overwrite b.txt with a.txt content
 
 echo "last update => " $(date +"%d-%m-%Y-%H-%M-%S") >> logs.txt
fi

5- Add the script to cron to run it on a schedule.

How to share files between steps on Bitbucket pipeline

Sat, 18 Jul 2020 10:07:21 +0600

List files under artifacts in a step and Bitbucket copies them into the steps that follow. This pipeline builds dist, zips it, then uploads the zip to S3.

bitbucket-pipelines.yml

 image: node:16

 pipelines:
 default:
 - step:
 name: Build 
 caches:
 - node
 script:
 - echo "Building files"
 - yarn 
 - yarn build ./dist
 artifacts: 
 - dist  # means need to save dist folder and copy to next step
 - dist/**  # means need to save dist folder and copy to next step
 - step:
 name: Use files from previous step
 image: atlassian/default-image:3
 caches:
 - node
 script:
 - zip -r file.zip dist
 artifacts: 
 - file.zip  # means need to save file.zip folder and copy to next step
 - step:
 name: Upload file to S3
 image: atlassian/pipelines-awscli
 caches:
 - node
 script:
 - aws s3 cp file.zip s3://mys3-bucket/

How upload built file to S3 bucket in Bitbucket pipeline

Sat, 18 Jul 2020 10:07:21 +0600

1- Create a bitbucket-pipelines.yml file in your Bitbucket repo.

2- Add this configuration:

 image: node:16

 pipelines:
 default:
 - step:
 name: Build App
 caches:
 - node
 script:
 - echo "Building App"
 - yarn 
 - yarn build
 artifacts: 
 - build  #Move build folder to next step
 - build/**
 - step:
 name: Zip build folder
 image: atlassian/default-image:3
 caches:
 - node
 script:
 - zip -r pkg.zip ./build
 artifacts: 
 - pkg.zip  #Move pkg.zip to next step
 - step:
 name: Upload to S3
 deployment: staging
 image: atlassian/pipelines-awscli
 caches:
 - node
 script:
 - aws s3 cp pkg.zip s3://MY-BUCKET/  #Copy pkg.zip to S3 bucket

3- Go to Settings => Deployments => Staging and add your AWS credentials as secured variables: