CODEWITHSUNDEEP
amazon-web-servicesjenkinshigh-availability
Nick Gleed
Nick Gleed

Reputation: 115

HA Jenkins in AWS

Firstly - not using docker yet. Jenkins best practice is to have a master and a backup master for fail-over. I've decoupled HOME & mounted it to EFS & backed this up + have got it working in ASG=2. My question is should I Load Balance the 2 nodes, pointing to 1 and then redirecting to backup at fail-over all in ASG=2. Or should I create 2 ASG's one for the master and one for the backup and use AWS DNS Health check to do the repointing. I am keen to have the backup as a lesser speced vm for cost purposes, but am really keen for some clarity to creating HA Jenkins. Iinterested in AWS approach- not trying to load balance traffic - but create a backup master.

Upvotes: 1

Views: 889

Answers (1)

Parag kale
Parag kale

Reputation: 111

ASG = 1 itself is HA. If you want zero downtime, configure 2 Jenkins(1 per AZ) behind an ALB. Backup only Jenkins config directory to save money. There is S3 plugin available for that.

For a detailed answer go through this paper. Check out the DR and HA part. https://docs.aws.amazon.com/aws-technical-content/latest/jenkins-on-aws/jenkins-on-aws.pdf

Upvotes: 1

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