What do you need to know to work in DevOps?

Question

Devops

Interested in such a question, what you need to know in order to become a DevOps engineer and in the future DevSecOps. Tell me what areas of knowledge to climb and how deep. Now I am writing VCRB. I use a kubernetes cluster - it's too interesting and I want to develop in this area. ps If possible, break it down into blocks: what you need in order to pass an interview and what you need for work.

Answer 1

Jenkins, docker, kuber, nginx, kvm, bash. This is the bare minimum for a very simple job. Sobsno xs what the junas will be asked about, and it’s so clear that the person has zero experience, I suppose there will be questions on Linux and writing scripts, the goal of getting a person who can be quickly trained in local specifics.

Answer 2

That this is a methodology and not a person, and it’s good to learn it :)
And to work on methodologies, you need knowledge in the field of the techniques you use.
And all this arose when they finally decided to make friends between the developers and the system administrator, so that it no longer sounded "it's your jambs, everything works for us"

Answer 3

Be able to raise
- Rancher on RKE (debian or rancheros)
- Working cluster on k3os under Calico
- Vault Operator
- kube-prometheus
- Velero backups
- Rook Ceph Minio
- consul-k8s under Ambassador
- skaffold & telepresence
- Argo CI/CD ( https: //argoproj.github.io/)
- Gitea ( https://gitea.io)
- gitlab
- Weave Scope & Net
It is desirable to be able to write custom Kubernetes Controllers under the Operator Framework .
It is advisable to learn more in DBA and in
- wal-g
- stolon
- pg_pathman
- pg_rewind
- pg_repack
under PostgreSQL.
And also, it doesn’t hurt to get acquainted with the life cycle of HA Cassandra / ScyllaDB and Kafka.