Experience using bosh for Day-0 Deployment
Bosh Concepts VS K8S Concepts
| Bosh Concept | Kubernetes Concept |
|---|---|
| Bosh Envs | Kubernetes Context |
| Bosh Deployment | Kubernetes Deployment |
| Bosh Stemcell | Docker Image |
| Bosh Manifest | Kubernetes Configmap & Yaml |
| Bosh Errand | Kubernetes Job |
| Bosh Task | Kubernetes Event |
| Bosh Release | Kubernetes Chart |
| Bosh Tile | Kubernetes Helm |
| Bosh Ops manager | No related feature: UI to customize your service |
| Bosh Director | Kubernetes API server |
| Bosh Agent | Kubernetes Controllers In Worker VMs |
| Bosh Addon |
See Bosh Cheatsheet.
Pros Of Using Bosh
- Errand yaml: single entrypoint
- Track all previous running history into DB
- Daemon process and VM lifecyle management
- Strict version control in all releases
Cons Of Using Bosh
- Time consuming to run errands
- provision VMs - Sequential
- Upfront investment
Hard to guess and debug: cut short, avoid extra wrapper layer
- Community is not big enough
- Documentation - Easy-to-follow Examples - Immature features: tail log
- Tile is usually very big. Slow to be distributed and tested
More Reading: 4 Challenges In Kubernetes Log Transport
Blog URL: https://www.dennyzhang.com/bosh