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traefik/docs/configuration/entrypoints.md
SALLEYRON Julien 00728e711c IPStrategy for selecting IP in whitelist
2018-08-24 16:20:03 +02:00

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# Entry Points Definition
## Reference
### TOML
```toml
defaultEntryPoints = ["http", "https"]
# ...
# ...
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.compress]
[entryPoints.http.clientIPStrategy]
depth = 5
excludedIPs = ["127.0.0.1/32", "192.168.1.7"]
[entryPoints.http.whitelist]
sourceRange = ["10.42.0.0/16", "152.89.1.33/32", "afed:be44::/16"]
[entryPoints.http.whitelist.IPStrategy]
depth = 5
excludedIPs = ["127.0.0.1/32", "192.168.1.7"]
[entryPoints.http.tls]
minVersion = "VersionTLS12"
cipherSuites = [
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_RSA_WITH_AES_256_GCM_SHA384"
]
[[entryPoints.http.tls.certificates]]
certFile = "path/to/my.cert"
keyFile = "path/to/my.key"
[[entryPoints.http.tls.certificates]]
certFile = "path/to/other.cert"
keyFile = "path/to/other.key"
# ...
[entryPoints.http.tls.clientCA]
files = ["path/to/ca1.crt", "path/to/ca2.crt"]
optional = false
[entryPoints.http.redirect]
entryPoint = "https"
regex = "^http://localhost/(.*)"
replacement = "http://mydomain/$1"
permanent = true
[entryPoints.http.auth]
headerField = "X-WebAuth-User"
[entryPoints.http.auth.basic]
removeHeader = true
users = [
"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/",
"test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
]
usersFile = "/path/to/.htpasswd"
[entryPoints.http.auth.digest]
removeHeader = true
users = [
"test:traefik:a2688e031edb4be6a3797f3882655c05",
"test2:traefik:518845800f9e2bfb1f1f740ec24f074e",
]
usersFile = "/path/to/.htdigest"
[entryPoints.http.auth.forward]
address = "https://authserver.com/auth"
trustForwardHeader = true
authResponseHeaders = ["X-Auth-User"]
[entryPoints.http.auth.forward.tls]
ca = "path/to/local.crt"
caOptional = true
cert = "path/to/foo.cert"
key = "path/to/foo.key"
insecureSkipVerify = true
[entryPoints.http.proxyProtocol]
insecure = true
trustedIPs = ["10.10.10.1", "10.10.10.2"]
[entryPoints.http.forwardedHeaders]
trustedIPs = ["10.10.10.1", "10.10.10.2"]
insecure = false
[entryPoints.https]
# ...
```
### CLI
For more information about the CLI, see the documentation about [Traefik command](/basics/#traefik).
```shell
--entryPoints='Name:http Address::80'
--entryPoints='Name:https Address::443 TLS'
```
!!! note
Whitespace is used as option separator and `,` is used as value separator for the list.
The names of the options are case-insensitive.
In compose file the entrypoint syntax is different:
```yaml
traefik:
image: traefik
command:
- --defaultentrypoints=powpow
- "--entryPoints=Name:powpow Address::42 Compress:true"
```
or
```yaml
traefik:
image: traefik
command: --defaultentrypoints=powpow --entryPoints='Name:powpow Address::42 Compress:true'
```
#### All available options:
```ini
Name:foo
Address::80
TLS:/my/path/foo.cert,/my/path/foo.key;/my/path/goo.cert,/my/path/goo.key;/my/path/hoo.cert,/my/path/hoo.key
TLS
TLS.MinVersion:VersionTLS11
TLS.CipherSuites:TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA384
TLS.SniStrict:true
TLS.DefaultCertificate.Cert:path/to/foo.cert
TLS.DefaultCertificate.Key:path/to/foo.key
CA:car
CA.Optional:true
Redirect.EntryPoint:https
Redirect.Regex:http://localhost/(.*)
Redirect.Replacement:http://mydomain/$1
Redirect.Permanent:true
Compress:true
WhiteList.SourceRange:10.42.0.0/16,152.89.1.33/32,afed:be44::/16
WhiteList.IPStrategy.depth:3
WhiteList.IPStrategy.ExcludedIPs:10.0.0.3/24,20.0.0.3/24
ProxyProtocol.TrustedIPs:192.168.0.1
ProxyProtocol.Insecure:true
ForwardedHeaders.TrustedIPs:10.0.0.3/24,20.0.0.3/24
Auth.Basic.Users:test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0
Auth.Basic.Removeheader:true
Auth.Digest.Users:test:traefik:a2688e031edb4be6a3797f3882655c05,test2:traefik:518845800f9e2bfb1f1f740ec24f074e
Auth.Digest.Removeheader:true
Auth.HeaderField:X-WebAuth-User
Auth.Forward.Address:https://authserver.com/auth
Auth.Forward.AuthResponseHeaders:X-Auth,X-Test,X-Secret
Auth.Forward.TrustForwardHeader:true
Auth.Forward.TLS.CA:path/to/local.crt
Auth.Forward.TLS.CAOptional:true
Auth.Forward.TLS.Cert:path/to/foo.cert
Auth.Forward.TLS.Key:path/to/foo.key
Auth.Forward.TLS.InsecureSkipVerify:true
```
## Basic
```toml
# Entrypoints definition
#
# Default:
# [entryPoints]
# [entryPoints.http]
# address = ":80"
#
[entryPoints]
[entryPoints.http]
address = ":80"
```
## Redirect HTTP to HTTPS
To redirect an http entrypoint to an https entrypoint (with SNI support).
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.redirect]
entryPoint = "https"
[entryPoints.https]
address = ":443"
[entryPoints.https.tls]
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.com.cert"
keyFile = "integration/fixtures/https/snitest.com.key"
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.org.cert"
keyFile = "integration/fixtures/https/snitest.org.key"
```
!!! note
Please note that `regex` and `replacement` do not have to be set in the `redirect` structure if an entrypoint is defined for the redirection (they will not be used in this case).
## Rewriting URL
To redirect an entrypoint rewriting the URL.
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.redirect]
regex = "^http://localhost/(.*)"
replacement = "http://mydomain/$1"
```
!!! note
Please note that `regex` and `replacement` do not have to be set in the `redirect` structure if an `entrypoint` is defined for the redirection (they will not be used in this case).
Care should be taken when defining replacement expand variables: `$1x` is equivalent to `${1x}`, not `${1}x` (see [Regexp.Expand](https://golang.org/pkg/regexp/#Regexp.Expand)), so use `${1}` syntax.
Regular expressions and replacements can be tested using online tools such as [Go Playground](https://play.golang.org/p/mWU9p-wk2ru) or the [Regex101](https://regex101.com/r/58sIgx/2).
## TLS
### Static Certificates
Define an entrypoint with SNI support.
```toml
[entryPoints]
[entryPoints.https]
address = ":443"
[entryPoints.https.tls]
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.com.cert"
keyFile = "integration/fixtures/https/snitest.com.key"
```
!!! note
If an empty TLS configuration is provided, default self-signed certificates are generated.
### Dynamic Certificates
If you need to add or remove TLS certificates while Traefik is started, Dynamic TLS certificates are supported using the [file provider](/configuration/backends/file).
## TLS Mutual Authentication
TLS Mutual Authentication can be `optional` or not.
If it's `optional`, Træfik will authorize connection with certificates not signed by a specified Certificate Authority (CA).
Otherwise, Træfik will only accept clients that present a certificate signed by a specified Certificate Authority (CA).
`ClientCA.files` can be configured with multiple `CA:s` in the same file or use multiple files containing one or several `CA:s`.
The `CA:s` has to be in PEM format.
By default, `ClientCA.files` is not optional, all clients will be required to present a valid cert.
The requirement will apply to all server certs in the entrypoint.
In the example below both `snitest.com` and `snitest.org` will require client certs
```toml
[entryPoints]
[entryPoints.https]
address = ":443"
[entryPoints.https.tls]
[entryPoints.https.tls.ClientCA]
files = ["tests/clientca1.crt", "tests/clientca2.crt"]
optional = false
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.com.cert"
keyFile = "integration/fixtures/https/snitest.com.key"
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.org.cert"
keyFile = "integration/fixtures/https/snitest.org.key"
```
## Authentication
### Basic Authentication
Passwords can be encoded in MD5, SHA1 and BCrypt: you can use `htpasswd` to generate them.
Users can be specified directly in the TOML file, or indirectly by referencing an external file;
if both are provided, the two are merged, with external file contents having precedence.
```toml
# To enable basic auth on an entrypoint with 2 user/pass: test:test and test2:test2
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.auth.basic]
users = ["test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"]
usersFile = "/path/to/.htpasswd"
```
Optionally, you can:
- pass authenticated user to application via headers
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.auth]
headerField = "X-WebAuth-User" # <-- header for the authenticated user
[entryPoints.http.auth.basic]
users = ["test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"]
```
- remove the Authorization header
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.auth]
[entryPoints.http.auth.basic]
removeHeader = true # <-- remove the Authorization header
users = ["test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"]
```
### Digest Authentication
You can use `htdigest` to generate them.
Users can be specified directly in the TOML file, or indirectly by referencing an external file;
if both are provided, the two are merged, with external file contents having precedence
```toml
# To enable digest auth on an entrypoint with 2 user/realm/pass: test:traefik:test and test2:traefik:test2
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.auth.digest]
users = ["test:traefik:a2688e031edb4be6a3797f3882655c05", "test2:traefik:518845800f9e2bfb1f1f740ec24f074e"]
usersFile = "/path/to/.htdigest"
```
Optionally, you can!
- pass authenticated user to application via headers.
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.auth]
headerField = "X-WebAuth-User" # <-- header for the authenticated user
[entryPoints.http.auth.digest]
users = ["test:traefik:a2688e031edb4be6a3797f3882655c05", "test2:traefik:518845800f9e2bfb1f1f740ec24f074e"]
```
- remove the Authorization header.
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.auth]
[entryPoints.http.auth.digest]
removeHeader = true # <-- remove the Authorization header
users = ["test:traefik:a2688e031edb4be6a3797f3882655c05", "test2:traefik:518845800f9e2bfb1f1f740ec24f074e"]
```
### Forward Authentication
This configuration will first forward the request to `http://authserver.com/auth`.
If the response code is 2XX, access is granted and the original request is performed.
Otherwise, the response from the authentication server is returned.
```toml
[entryPoints]
[entryPoints.http]
# ...
# To enable forward auth on an entrypoint
[entryPoints.http.auth.forward]
address = "https://authserver.com/auth"
# Trust existing X-Forwarded-* headers.
# Useful with another reverse proxy in front of Traefik.
#
# Optional
# Default: false
#
trustForwardHeader = true
# Copy headers from the authentication server to the request.
#
# Optional
#
authResponseHeaders = ["X-Auth-User", "X-Secret"]
# Enable forward auth TLS connection.
#
# Optional
#
[entryPoints.http.auth.forward.tls]
ca = "path/to/local.crt"
caOptional = true
cert = "path/to/foo.cert"
key = "path/to/foo.key"
```
## Specify Minimum TLS Version
To specify an https entry point with a minimum TLS version, and specifying an array of cipher suites (from [crypto/tls](https://godoc.org/crypto/tls#pkg-constants)).
```toml
[entryPoints]
[entryPoints.https]
address = ":443"
[entryPoints.https.tls]
minVersion = "VersionTLS12"
cipherSuites = [
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_RSA_WITH_AES_256_GCM_SHA384"
]
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.com.cert"
keyFile = "integration/fixtures/https/snitest.com.key"
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.org.cert"
keyFile = "integration/fixtures/https/snitest.org.key"
```
## Strict SNI Checking
To enable strict SNI checking, so that connections cannot be made if a matching certificate does not exist.
```toml
[entryPoints]
[entryPoints.https]
address = ":443"
[entryPoints.https.tls]
sniStrict = true
[[entryPoints.https.tls.certificates]]
certFile = "integration/fixtures/https/snitest.com.cert"
keyFile = "integration/fixtures/https/snitest.com.key"
```
## Default Certificate
To enable a default certificate to serve, so that connections without SNI or without a matching domain will be served this certificate.
```toml
[entryPoints]
[entryPoints.https]
address = ":443"
[entryPoints.https.tls]
[entryPoints.https.tls.defaultCertificate]
certFile = "integration/fixtures/https/snitest.com.cert"
keyFile = "integration/fixtures/https/snitest.com.key"
```
!!! note
There can only be one `defaultCertificate` set per entrypoint.
Use a single set of square brackets `[ ]`, instead of the two needed for normal certificates.
If no default certificate is provided, a self-signed certificate will be generated by Traefik, and used instead.
## Compression
To enable compression support using gzip format.
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.compress]
```
Responses are compressed when:
* The response body is larger than `512` bytes
* And the `Accept-Encoding` request header contains `gzip`
* And the response is not already compressed, i.e. the `Content-Encoding` response header is not already set.
## White Listing
Træfik supports whitelisting to accept or refuse requests based on the client IP.
The following example enables IP white listing and accepts requests from client IPs defined in `sourceRange`.
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.whiteList]
sourceRange = ["127.0.0.1/32", "192.168.1.7"]
# [entryPoints.http.whiteList.IPStrategy]
# Override the clientIPStrategy
```
By default, Træfik uses the client IP (see [ClientIPStrategy](/configuration/entrypoints/#clientipstrategy)) for the whitelisting.
If you want to use another IP than the one determined by `ClientIPStrategy` for the whitelisting, you can define the `IPStrategy` option:
```toml
[entryPoints]
[entryPoints.http.clientIPStrategy]
depth = 4
[entryPoints.http]
address = ":80"
[entryPoints.http.whiteList]
sourceRange = ["127.0.0.1/32", "192.168.1.7"]
[entryPoints.http.whiteList.IPStrategy]
depth = 2
```
In the above example, if the value of the `X-Forwarded-For` header was `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` then the client IP would be `"10.0.0.1"` (`clientIPStrategy.depth=4`) but the IP used for the whitelisting would be `"12.0.0.1"` (`whitelist.IPStrategy.depth=2`).
## ClientIPStrategy
The `clientIPStrategy` defines how you want Træfik to determine the client IP (used for whitelisting for example).
There are several option available:
### Depth
This option uses the `X-Forwarded-For` header and takes the IP located at the `depth` position (starting from the right).
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.clientIPStrategy]
```
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.clientIPStrategy]
depth = 5
```
!!! note
- If `depth` is greater than the total number of IPs in `X-Forwarded-For`, then clientIP will be empty.
- If `depth` is lesser than or equal to 0, then the option is ignored.
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` | `""` |
### Excluded IPs
Træfik will scan the `X-Forwarded-For` header (from the right) and pick the first IP not in the `excludedIPs` list.
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.http.clientIPStrategy]
excludedIPs = ["127.0.0.1/32", "192.168.1.7"]
```
!!! note
If `depth` is specified, `excludedIPs` is ignored.
Examples:
| `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"` | `""` |
### Default
If there are no `depth` or `excludedIPs`, then the client IP is the IP of the computer that initiated the connection with the Træfik server (the remote address).
## ProxyProtocol
To enable [ProxyProtocol](https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt) support.
Only IPs in `trustedIPs` will lead to remote client address replacement: you should declare your load-balancer IP or CIDR range here (in testing environment, you can trust everyone using `insecure = true`).
!!! danger
When queuing Træfik behind another load-balancer, be sure to carefully configure Proxy Protocol on both sides.
Otherwise, it could introduce a security risk in your system by forging requests.
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
# Enable ProxyProtocol
[entryPoints.http.proxyProtocol]
# List of trusted IPs
#
# Required
# Default: []
#
trustedIPs = ["127.0.0.1/32", "192.168.1.7"]
# Insecure mode FOR TESTING ENVIRONNEMENT ONLY
#
# Optional
# Default: false
#
# insecure = true
```
## Forwarded Header
Only IPs in `trustedIPs` will be authorized to trust the client forwarded headers (`X-Forwarded-*`).
```toml
[entryPoints]
[entryPoints.http]
address = ":80"
# Enable Forwarded Headers
[entryPoints.http.forwardedHeaders]
# List of trusted IPs
#
# Required
# Default: []
#
trustedIPs = ["127.0.0.1/32", "192.168.1.7"]
# Insecure mode
#
# Optional
# Default: false
#
# insecure = true
```
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