Vaban
A quick and easy way to control clusters of Varnish Cache hosts using a RESTful JSON API.
Vaban is built in Go for high performance, concurrency and simplicity. Every request and every ban spawns its own lightweight thread.
It supports Varnish 3.0.3 + 4, Authentication, Pattern-based/VCL-based banning, health status, enable/disable backends, and more stuff to come.
Getting Started
Installing from packages
The easiest way to install Vaban is from packages.
- Currently enabled for Ubuntu 14.04/12.04 and Debian 7.
- Current packages available from packager.io
Installing from source
Dependencies
Clone and Build locally:
git clone https://github.com/martensson/vaban.git
cd vaban
go build
Create a config.yml file and add all your services:
Put the file inside your application root, if installing from package: /opt/vaban/config.yml
---
service1:
hosts:
- "a.example.com:6082"
- "b.example.com:6082"
- "c.example.com:6082"
- "d.example.com:6082"
- "e.example.com:6082"
secret: "1111-2222-3333-aaaa-bbbb-cccc"
service2:
hosts:
- "x.example.com:6082"
- "y.example.com:6082"
- "z.example.com:6082"
secret: "1111-2222-3333-aaaa-bbbb-cccc"
Running Vaban
from source:
./vaban -p 4000 -f /path/to/config.yml
from packages:
vaban run web
or
vaban scale web=1
service vaban start
vaban logs
from Docker
If you already have Docker install its really use to compile and run with two commands:
docker build -t vaban .
docker run -p 4000:4000 vaban
Make sure that the varnish admin interface is available on your hosts, listening on 0.0.0.0:6082
API
A quick and easy way to control clusters of Varnish Cache hosts using a RESTful JSON API.
GET /v1/services
Get all groups:
-
Response 200 (application/json)
[
"group1",
"group2",
"group3",
]
GET /v1/service/group1
Get all hosts in group:
GET /v1/service/group1/ping
Scan hosts to see if tcp port is open:
GET /v1/service/group1/health
Check health status of all backends:
-
Response 200 (application/json)
{
"test01:6082": {
"backend01(10.160.101.100,,80)": {
"Refs": "1",
"Admin": "probe",
"Probe": "Healthy 4/4"
}
}
}
GET /v1/service/group1/health/www01
Check health status of one backend:
-
Response 200 (application/json)
{
"test01:6082": {
"backend01(10.160.101.100,,80)": {
"Refs": "1",
"Admin": "probe",
"Probe": "Healthy 3/4"
}
}
}
POST /v1/service/group1/health/www01
force health status of one backend (can be healthy, sick or auto):
-
Request (application/json)
{"Set_health":"sick"}
-
Response 200 (application/json)
{
"test01:6082": {
"Msg": "updated with status 200 0"
}
}
POST /v1/service/group1/ban
To ban elements in your cache.
-
Request Ban the root of your website (application/json)
{"Pattern":"/"}
-
Request Ban all css files (application/json)
{"Pattern":".*css"}
-
Request Ban based on VCL, in this case all objects matching a host-header. (application/json)
{"Vcl":"req.http.Host == 'example.com'"}"}
-
Response 200 (application/json)
{
"test01:6082": {
"Msg": "ban status 200 0"
}
}