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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Vaquero -- What is it?</title>
<meta name="description" content="An introduction to Vaquero for the uninitiated.">
<meta name="author" content="Ben Schumacher">
<link rel="stylesheet" href="css/main.css">
</head>
<body>
<textarea id="source">class: center, middle, inverse
# Vaquero
What is it?
.footnote[
Ben Schumacher - Cisco]
---
layout: false
.left-column[
## Where did it start?
]
.right-column[
- Initial discussions between Cisco Cloud team and Comcast in December 2015.
- Scope included container orchestration, OpenStack-based virtualization, system provisioning.
- POC project kicked off in early 2016 under moniker _Gemini_.
- _Nascent effort started by handful of Cisco engineers._
- _Intended as unified deployment system for clustered software._
- _Primary use case: Ansible as CM tool to install clustered software (Kubernetes) on prepared O/S._
.center[
 ]
]
???
Gemini project focused on enhancements to Ansible playbooks used to deploy
Kubernetes on a variety of platforms. Work in [kubernetes/contrib](https://github.com/kubernetes/contrib)
Artifacts: https://github.com/gemini-project/
Required: Prepared O/S = installed, networked, user accounts provisioned, etc.
---
.left-column[
## Where did it start?
## Where did it go?
]
.right-column[
- Follow-up meetings with Comcast **V.blue[IP]ER** team in early 2016.
- Discussed perceived weaknesses in current workflow with existing tools.
- Effort refocused around provisioning of bare metal and immutable BM infrastructure in May 2016.
]
---
.left-column[
## Where did it start?
## Where did it go?
]
.right-column[
- Follow-up meetings with Comcast **V.blue[IP]ER** team in early 2016.
- Discussed perceived weaknesses in current workflow with existing tools.
- Effort refocused around provisioning of bare metal and immutable BM infrastructure in May 2016.
Projected adopted name **Vaquero**.red[\*] to reflect new focus.
.center[]
.footnote[.red[\*] vaquero /väˈkerō/ - a cowboy _(Southwestern US Spanish dialect)_]
]
---
class: center, middle, inverse
# Requirements
---
## High-level Requirements
1. Declarative textual representation of bare metal compute.
2. Lowest level of software layer (O/S, Kubernetes, etc.) should be immutable.
3. Prefer Git as repository for description of cluster.
4. System maintenance (upgrades, fault recovery, etc.) will be performed by node reboot.
- Workflow derived from high-level policies.
## Non-requirements
- Semantic understanding of software layer.
- Dynamic system inventory.
.footnote[More detailed documentation [available](https://ciscocloud.github.io/vaquero-docs/docs/current/requirements.html).]
???
This approach allows the system to determine best steps for rendering
configuration onto compute.
Reboot policies encompass several concepts:
1. reboot one node of this type at a time in a cluster
2. this node type A depends on node type B completed
3. allows injection of customized logic via containers
---
## Development and Operational Goals
Vaquero tooling should be easy to use.
- Functionally complete in single binary, and packaged in a Docker container
- Narrow set of external dependencies -- etcd, GitHub
- Familiar command-line interface, taking cues from CLIs such as Git, kubectl, docker, etc.
- Built on powerful foundation of open source tools -- Go, Google's [netboot](https://github.com/google/netboot) package, Docker, etcd, etc.
.pull-right[
] .pull-left[
]
---
class: center, middle, inverse
# Data Model
---
layout: true
### Data Model Primitives
---
.left-column[
## Operating system
]
.right-column[
**`coreos-pxe.yml`**
```yaml
id: coreos-1053.2.0-stable
name: CoreOS Stable 1053.2.0
major_version: '1053'
minor_version: '2.0'
os_family: CoreOS
release_name: stable
boot:
kernel: "{{.env.agentURL}}/files/{{.boot.os.release_name}}/{{.boot.os.major_version}}/{{.boot.os.minor_version}}/coreos_production_pxe.vmlinuz"
initrd:
- "{{.env.agentURL}}/files/coreos_production_pxe_image.cpio.gz"
cmdline:
coreos.autologin: ''
```
]
---
.left-column[
## Operating system
## Netboot
]
.right-column[
**`boot/etcd-master.yml`**
```yaml
id: etcd-master
name: Etcd Master
operating_system: coreos-1053.2.0-stable
unattended:
type: ignition
use: etcd.yml
metadata:
fleet_role: etcd
```
**`boot/clevos.yml`**
```yaml
id: clevos
name: ClevOS 3.7
operating_system: clevos-basic
unattended:
type: untyped
use: clevos-answers.provision
metadata:
root_pass: ********
```
]
---
.left-column[
## Operating system
## Netboot
## Environment
]
.right-column[
**`site/detriot/env.yml`**
```yaml
name: Virtualenv Dev
id: test-site
subnets:
- id: default
cidr: 10.10.10.0/24
domain: foo.bar.com
gateway: 10.10.10.1
dns:
- 8.8.8.8
ntp:
- 10.10.10.1
- id: mgmt-subnet
cidr: 10.9.9.0/24
dns:
- 8.8.8.8
ntp:
- 10.10.10.1
metadata:
name: detroit-preprod
kind: pre-prod
etcd_initial_cluster: node1=http://10.10.10.10:2380,node2=http://10.10.10.11:2380,node3=http://10.10.10.12:2380
ssh_authorized_keys: []
```
]
---
.left-column[
## Operating system
## Netboot
## Environment
## Inventory
]
.right-column[
**`site/detriot/inventory.yml`**
```yaml
name: host1
*interfaces:
- type: physical
subnet: default
mac: 00:00:00:00:00:01
bmc:
type: ipmi
username: adam
password: ********
identifier: eth0
ipv4: 10.10.10.10
metadata:
etcd_name: node1
workflow: etcd-master
---
name: host2
interfaces:
- type: physical
subnet: default
mac: 00:00:00:00:00:02
identifier: eth0
ipv4: 10.10.10.11
metadata:
etcd_name: node2
workflow: etcd-master
```
]
---
layout: false
class: center, middle, inverse
# Architecture & Design
---
## Software Subsystems
.center[]
???
---
## High-Availability
.center[]
???
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