7 KiB
7 KiB
IPWhiteList
Limiting Clients to Specific IPs {: .subtitle }
IPWhitelist accepts / refuses requests based on the client IP.
Configuration Examples
# Accepts request from defined IP
labels:
- "traefik.http.middlewares.test-ipwhitelist.ipwhitelist.sourcerange=127.0.0.1/32, 192.168.1.7"
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: test-ipwhitelist
spec:
ipWhiteList:
sourceRange:
- 127.0.0.1/32
- 192.168.1.7
# Accepts request from defined IP
- "traefik.http.middlewares.test-ipwhitelist.ipwhitelist.sourcerange=127.0.0.1/32, 192.168.1.7"
"labels": {
"traefik.http.middlewares.test-ipwhitelist.ipwhitelist.sourcerange": "127.0.0.1/32,192.168.1.7"
}
# Accepts request from defined IP
labels:
- "traefik.http.middlewares.test-ipwhitelist.ipwhitelist.sourcerange=127.0.0.1/32, 192.168.1.7"
# Accepts request from defined IP
[http.middlewares]
[http.middlewares.test-ipwhitelist.ipWhiteList]
sourceRange = ["127.0.0.1/32", "192.168.1.7"]
# Accepts request from defined IP
http:
middlewares:
test-ipwhitelist:
ipWhiteList:
sourceRange:
- "127.0.0.1/32"
- "192.168.1.7"
Configuration Options
sourceRange
The sourceRange option sets the allowed IPs (or ranges of allowed IPs by using CIDR notation).
ipStrategy
The ipStrategy option defines two parameters that sets how Traefik will determine the client IP: depth, and excludedIPs.
ipStrategy.depth
The depth option tells Traefik to use the X-Forwarded-For header and take the IP located at the depth position (starting from the right).
!!! example "Examples of Depth & X-Forwarded-For"
```yaml tab="Docker"
# Whitelisting Based on `X-Forwarded-For` with `depth=2`
labels:
- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.sourcerange=127.0.0.1/32, 192.168.1.7"
- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.ipstrategy.depth=2"
```
```yaml tab="Kubernetes"
# Whitelisting Based on `X-Forwarded-For` with `depth=2`
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: testIPwhitelist
spec:
ipWhiteList:
sourceRange:
- 127.0.0.1/32
- 192.168.1.7
ipStrategy:
depth: 2
```
```yaml tab="Consul Catalog"
# Whitelisting Based on `X-Forwarded-For` with `depth=2`
- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.sourcerange=127.0.0.1/32, 192.168.1.7"
- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.ipstrategy.depth=2"
```
```json tab="Marathon"
"labels": {
"traefik.http.middlewares.testIPwhitelist.ipwhitelist.sourcerange": "127.0.0.1/32, 192.168.1.7",
"traefik.http.middlewares.testIPwhitelist.ipwhitelist.ipstrategy.depth": "2"
}
```
```yaml tab="Rancher"
# Whitelisting Based on `X-Forwarded-For` with `depth=2`
labels:
- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.sourcerange=127.0.0.1/32, 192.168.1.7"
- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.ipstrategy.depth=2"
```
```toml tab="File (TOML)"
# Whitelisting Based on `X-Forwarded-For` with `depth=2`
[http.middlewares]
[http.middlewares.test-ipwhitelist.ipWhiteList]
sourceRange = ["127.0.0.1/32", "192.168.1.7"]
[http.middlewares.test-ipwhitelist.ipWhiteList.ipStrategy]
depth = 2
```
```yaml tab="File (YAML)"
# Whitelisting Based on `X-Forwarded-For` with `depth=2`
http:
middlewares:
test-ipwhitelist:
ipWhiteList:
sourceRange:
- "127.0.0.1/32"
- "192.168.1.7"
ipStrategy:
depth: 2
```
If `depth` was equal to 2, and the request `X-Forwarded-For` header was `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` then the "real" client IP would be `"10.0.0.1"` (at depth 4) but the IP used for the whitelisting would be `"12.0.0.1"` (`depth=2`).
??? example "More examples"
| `X-Forwarded-For` | `depth` | clientIP |
|-----------------------------------------|---------|--------------|
| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `1` | `"13.0.0.1"` |
| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `3` | `"11.0.0.1"` |
| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `5` | `""` |
!!! info
- If `depth` is greater than the total number of IPs in `X-Forwarded-For`, then the client IP will be empty.
- `depth` is ignored if its value is lesser than or equal to 0.
ipStrategy.excludedIPs
# Exclude from `X-Forwarded-For`
labels:
- "traefik.http.middlewares.test-ipwhitelist.ipwhitelist.ipstrategy.excludedips=127.0.0.1/32, 192.168.1.7"
# Exclude from `X-Forwarded-For`
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: test-ipwhitelist
spec:
ipWhiteList:
ipStrategy:
excludedIPs:
- 127.0.0.1/32
- 192.168.1.7
# Exclude from `X-Forwarded-For`
- "traefik.http.middlewares.test-ipwhitelist.ipwhitelist.ipstrategy.excludedips=127.0.0.1/32, 192.168.1.7"
"labels": {
"traefik.http.middlewares.test-ipwhitelist.ipwhitelist.ipstrategy.excludedips": "127.0.0.1/32, 192.168.1.7"
}
# Exclude from `X-Forwarded-For`
labels:
- "traefik.http.middlewares.test-ipwhitelist.ipwhitelist.ipstrategy.excludedips=127.0.0.1/32, 192.168.1.7"
# Exclude from `X-Forwarded-For`
[http.middlewares]
[http.middlewares.test-ipwhitelist.ipWhiteList]
[http.middlewares.test-ipwhitelist.ipWhiteList.ipStrategy]
excludedIPs = ["127.0.0.1/32", "192.168.1.7"]
# Exclude from `X-Forwarded-For`
http:
middlewares:
test-ipwhitelist:
ipWhiteList:
ipStrategy:
excludedIPs:
- "127.0.0.1/32"
- "192.168.1.7"
excludedIPs tells Traefik to scan the X-Forwarded-For header and pick the first IP not in the list.
!!! important "If depth is specified, excludedIPs is ignored."
!!! example "Examples of ExcludedIPs & X-Forwarded-For"
| `X-Forwarded-For` | `excludedIPs` | clientIP |
|-----------------------------------------|-----------------------|--------------|
| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"12.0.0.1,13.0.0.1"` | `"11.0.0.1"` |
| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"15.0.0.1,13.0.0.1"` | `"12.0.0.1"` |
| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"10.0.0.1,13.0.0.1"` | `"12.0.0.1"` |
| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"15.0.0.1,16.0.0.1"` | `"13.0.0.1"` |
| `"10.0.0.1,11.0.0.1"` | `"10.0.0.1,11.0.0.1"` | `""` |