EntryPoints
Opening Connections for Incoming Requests
EntryPoints are the network entry points into Traefik. They define the port which will receive the packets, and whether to listen for TCP or UDP.
Configuration Examples
Port 80 only
File (YAML)
## Static configuration
entryPoints:
web:
address: ":80"
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.web]
address = ":80"
CLI
## Static configuration
--entryPoints.web.address=:80
We define an entrypoint
called web
that will listen on port 80
.
Port 80 & 443
File (YAML)
## Static configuration
entryPoints:
web:
address: ":80"
websecure:
address: ":443"
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.web]
address = ":80"
[entryPoints.websecure]
address = ":443"
CLI
## Static configuration
--entryPoints.web.address=:80
--entryPoints.websecure.address=:443
- Two entrypoints are defined: one called
web
, and the other calledwebsecure
. web
listens on port80
, andwebsecure
on port443
.
UDP on port 1704
File (YAML)
## Static configuration
entryPoints:
streaming:
address: ":1704/udp"
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.streaming]
address = ":1704/udp"
CLI
## Static configuration
--entryPoints.streaming.address=:1704/udp
Configuration
General
EntryPoints are part of the static configuration. They can be defined by using a file (YAML or TOML) or CLI arguments.
See the complete reference for the list of available options
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888" # same as ":8888/tcp"
http2:
maxConcurrentStreams: 42
http3:
advertisedPort: 8888
transport:
lifeCycle:
requestAcceptGraceTimeout: 42
graceTimeOut: 42
respondingTimeouts:
readTimeout: 42
writeTimeout: 42
idleTimeout: 42
proxyProtocol:
insecure: true
trustedIPs:
- "127.0.0.1"
- "192.168.0.1"
forwardedHeaders:
insecure: true
trustedIPs:
- "127.0.0.1"
- "192.168.0.1"
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888" # same as ":8888/tcp"
[entryPoints.name.http2]
maxConcurrentStreams = 42
[entryPoints.name.http3]
advertisedPort = 8888
[entryPoints.name.transport]
[entryPoints.name.transport.lifeCycle]
requestAcceptGraceTimeout = 42
graceTimeOut = 42
[entryPoints.name.transport.respondingTimeouts]
readTimeout = 42
writeTimeout = 42
idleTimeout = 42
[entryPoints.name.proxyProtocol]
insecure = true
trustedIPs = ["127.0.0.1", "192.168.0.1"]
[entryPoints.name.forwardedHeaders]
insecure = true
trustedIPs = ["127.0.0.1", "192.168.0.1"]
CLI
## Static configuration
--entryPoints.name.address=:8888 # same as :8888/tcp
--entryPoints.name.http2.maxConcurrentStreams=42
--entryPoints.name.http3.advertisedport=8888
--entryPoints.name.transport.lifeCycle.requestAcceptGraceTimeout=42
--entryPoints.name.transport.lifeCycle.graceTimeOut=42
--entryPoints.name.transport.respondingTimeouts.readTimeout=42
--entryPoints.name.transport.respondingTimeouts.writeTimeout=42
--entryPoints.name.transport.respondingTimeouts.idleTimeout=42
--entryPoints.name.proxyProtocol.insecure=true
--entryPoints.name.proxyProtocol.trustedIPs=127.0.0.1,192.168.0.1
--entryPoints.name.forwardedHeaders.insecure=true
--entryPoints.name.forwardedHeaders.trustedIPs=127.0.0.1,192.168.0.1
Address
The address defines the port, and optionally the hostname, on which to listen for incoming connections and packets. It also defines the protocol to use (TCP or UDP). If no protocol is specified, the default is TCP. The format is:
[host]:port[/tcp|/udp]
If both TCP and UDP are wanted for the same port, two entryPoints definitions are needed, such as in the example below.
Both TCP and UDP on Port 3179
File (YAML)
## Static configuration
entryPoints:
tcpep:
address: ":3179"
udpep:
address: ":3179/udp"
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.tcpep]
address = ":3179"
[entryPoints.udpep]
address = ":3179/udp"
CLI
## Static configuration
--entryPoints.tcpep.address=:3179
--entryPoints.udpep.address=:3179/udp
Listen on Specific IP Addresses Only
File (yaml)
entryPoints:
specificIPv4:
address: "192.168.2.7:8888"
specificIPv6:
address: "[2001:db8::1]:8888"
File (TOML)
[entryPoints.specificIPv4]
address = "192.168.2.7:8888"
[entryPoints.specificIPv6]
address = "[2001:db8::1]:8888"
CLI
--entryPoints.specificIPv4.address=192.168.2.7:8888
--entryPoints.specificIPv6.address=[2001:db8::1]:8888
Full details for how to specify address
can be found in net.Listen (and net.Dial) of the doc for go.
ReusePort
Optional, Default=false
The ReusePort
option enables EntryPoints from the same or different processes listening on the same TCP/UDP port by utilizing the SO_REUSEPORT
socket option. It also allows the kernel to act like a load balancer to distribute incoming connections between entry points.
For example, you can use it with the transport.lifeCycle to do canary deployments against Traefik itself. Like upgrading Traefik version or reloading the static configuration without any service downtime.
Supported platforms
The ReusePort
option currently works only on Linux, FreeBSD, OpenBSD and Darwin. It will be ignored on other platforms.
There is a known bug in the Linux kernel that may cause unintended TCP connection failures when using the ReusePort
option. For more details, see https://lwn.net/Articles/853637/.
Listen on the same port
File (yaml)
entryPoints:
web:
address: ":80"
reusePort: true
File (TOML)
[entryPoints.web]
address = ":80"
reusePort = true
CLI
--entryPoints.web.address=:80
--entryPoints.web.reusePort=true
Now it is possible to run multiple Traefik processes with the same EntryPoint configuration.
Listen on the same port but bind to a different host
File (yaml)
entryPoints:
web:
address: ":80"
reusePort: true
privateWeb:
address: "192.168.1.2:80"
reusePort: true
File (TOML)
[entryPoints.web]
address = ":80"
reusePort = true
[entryPoints.privateWeb]
address = "192.168.1.2:80"
reusePort = true
CLI
--entryPoints.web.address=:80
--entryPoints.web.reusePort=true
--entryPoints.privateWeb.address=192.168.1.2:80
--entryPoints.privateWeb.reusePort=true
Requests to 192.168.1.2:80
will only be handled by routers that have privateWeb
as the entry point.
AsDefault
Optional, Default=false
The AsDefault
option marks the EntryPoint to be in the list of default EntryPoints. EntryPoints in this list are used (by default) on HTTP and TCP routers that do not define their own EntryPoints option.
List of default EntryPoints
If there is no EntryPoint with the AsDefault
option set to true
, then the list of default EntryPoints includes all HTTP/TCP EntryPoints.
If at least one EntryPoint has the AsDefault
option set to true
, then the list of default EntryPoints includes only EntryPoints that have the AsDefault
option set to true
.
Some built-in EntryPoints are always excluded from the list, namely: traefik
.
Only TCP and HTTP
The AsDefault
option has no effect on UDP EntryPoints. When a UDP router does not define the EntryPoints option, it is attached to all available UDP EntryPoints.
Defining only one EntryPoint as default
File (yaml)
entryPoints:
web:
address: ":80"
websecure:
address: ":443"
asDefault: true
File (TOML)
[entryPoints.web]
address = ":80"
[entryPoints.websecure]
address = ":443"
asDefault = true
CLI
--entryPoints.web.address=:80
--entryPoints.websecure.address=:443
--entryPoints.websecure.asDefault=true
HTTP/2
maxConcurrentStreams
Optional, Default=250
maxConcurrentStreams
specifies the number of concurrent streams per connection that each client is allowed to initiate. The maxConcurrentStreams
value must be greater than zero.
File (YAML)
entryPoints:
foo:
http2:
maxConcurrentStreams: 250
File (TOML)
[entryPoints.foo]
[entryPoints.foo.http2]
maxConcurrentStreams = 250
CLI
--entryPoints.name.http2.maxConcurrentStreams=250
HTTP/3
http3
http3
enables HTTP/3 protocol on the entryPoint. HTTP/3 requires a TCP entryPoint, as HTTP/3 always starts as a TCP connection that then gets upgraded to UDP. In most scenarios, this entryPoint is the same as the one used for TLS traffic.
File (YAML)
entryPoints:
name:
http3: {}
File (TOML)
[entryPoints.name.http3]
CLI
--entryPoints.name.http3
HTTP/3 uses UDP+TLS
As HTTP/3 actually uses UDP, when traefik is configured with a TCP entryPoint on port N with HTTP/3 enabled, the underlying HTTP/3 server that is started automatically listens on UDP port N too. As a consequence, it means port N cannot be used by another UDP entryPoint. Since HTTP/3 requires the use of TLS, only routers with TLS enabled will be usable with HTTP/3.
advertisedPort
http3.advertisedPort
defines which UDP port to advertise as the HTTP/3 authority. It defaults to the entryPoint’s address port. It can be used to override the authority in the alt-svc
header, for example if the public facing port is different from where Traefik is listening.
http3.advertisedPort
File (YAML)
entryPoints:
name:
http3:
advertisedPort: 443
File (TOML)
[entryPoints.name.http3]
advertisedPort = 443
CLI
--entryPoints.name.http3.advertisedport=443
Forwarded Headers
You can configure Traefik to trust the forwarded headers information (X-Forwarded-*
).
forwardedHeaders.trustedIPs
Trusting Forwarded Headers from specific IPs.
File (YAML)
## Static configuration
entryPoints:
web:
address: ":80"
forwardedHeaders:
trustedIPs:
- "127.0.0.1/32"
- "192.168.1.7"
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.web]
address = ":80"
[entryPoints.web.forwardedHeaders]
trustedIPs = ["127.0.0.1/32", "192.168.1.7"]
CLI
## Static configuration
--entryPoints.web.address=:80
--entryPoints.web.forwardedHeaders.trustedIPs=127.0.0.1/32,192.168.1.7
forwardedHeaders.insecure
Insecure Mode (Always Trusting Forwarded Headers).
File (YAML)
## Static configuration
entryPoints:
web:
address: ":80"
forwardedHeaders:
insecure: true
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.web]
address = ":80"
[entryPoints.web.forwardedHeaders]
insecure = true
CLI
## Static configuration
--entryPoints.web.address=:80
--entryPoints.web.forwardedHeaders.insecure
Transport
respondingTimeouts
respondingTimeouts
are timeouts for incoming requests to the Traefik instance. Setting them has no effect for UDP entryPoints.
transport.respondingTimeouts.readTimeout
Optional, Default=60s
readTimeout
is the maximum duration for reading the entire request, including the body.
If zero, no timeout exists.
Can be provided in a format supported by time.ParseDuration or as raw values (digits). If no units are provided, the value is parsed assuming seconds. We strongly suggest to adapt this value accordingly to the your needs.
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888"
transport:
respondingTimeouts:
readTimeout: 42
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888"
[entryPoints.name.transport]
[entryPoints.name.transport.respondingTimeouts]
readTimeout = 42
CLI
## Static configuration
--entryPoints.name.address=:8888
--entryPoints.name.transport.respondingTimeouts.readTimeout=42
transport.respondingTimeouts.writeTimeout
Optional, Default=0s
writeTimeout
is the maximum duration before timing out writes of the response.
It covers the time from the end of the request header read to the end of the response write. If zero, no timeout exists.
Can be provided in a format supported by time.ParseDuration or as raw values (digits). If no units are provided, the value is parsed assuming seconds.
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888"
transport:
respondingTimeouts:
writeTimeout: 42
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888"
[entryPoints.name.transport]
[entryPoints.name.transport.respondingTimeouts]
writeTimeout = 42
CLI
## Static configuration
--entryPoints.name.address=:8888
--entryPoints.name.transport.respondingTimeouts.writeTimeout=42
transport.respondingTimeouts.idleTimeout
Optional, Default=180s
idleTimeout
is the maximum duration an idle (keep-alive) connection will remain idle before closing itself.
If zero, no timeout exists.
Can be provided in a format supported by time.ParseDuration or as raw values (digits). If no units are provided, the value is parsed assuming seconds.
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888"
transport:
respondingTimeouts:
idleTimeout: 42
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888"
[entryPoints.name.transport]
[entryPoints.name.transport.respondingTimeouts]
idleTimeout = 42
CLI
## Static configuration
--entryPoints.name.address=:8888
--entryPoints.name.transport.respondingTimeouts.idleTimeout=42
lifeCycle
Controls the behavior of Traefik during the shutdown phase.
lifeCycle.requestAcceptGraceTimeout
Optional, Default=0s
Duration to keep accepting requests prior to initiating the graceful termination period (as defined by the graceTimeOut
option). This option is meant to give downstream load-balancers sufficient time to take Traefik out of rotation.
Can be provided in a format supported by time.ParseDuration or as raw values (digits).
If no units are provided, the value is parsed assuming seconds. The zero duration disables the request accepting grace period, i.e., Traefik will immediately proceed to the grace period.
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888"
transport:
lifeCycle:
requestAcceptGraceTimeout: 42
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888"
[entryPoints.name.transport]
[entryPoints.name.transport.lifeCycle]
requestAcceptGraceTimeout = 42
CLI
## Static configuration
--entryPoints.name.address=:8888
--entryPoints.name.transport.lifeCycle.requestAcceptGraceTimeout=42
lifeCycle.graceTimeOut
Optional, Default=10s
Duration to give active requests a chance to finish before Traefik stops.
Can be provided in a format supported by time.ParseDuration or as raw values (digits).
If no units are provided, the value is parsed assuming seconds.
In this time frame no new requests are accepted.
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888"
transport:
lifeCycle:
graceTimeOut: 42
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888"
[entryPoints.name.transport]
[entryPoints.name.transport.lifeCycle]
graceTimeOut = 42
CLI
## Static configuration
--entryPoints.name.address=:8888
--entryPoints.name.transport.lifeCycle.graceTimeOut=42
keepAliveMaxRequests
Optional, Default=0
The maximum number of requests Traefik can handle before sending a Connection: Close
header to the client (for HTTP2, Traefik sends a GOAWAY). Zero means no limit.
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888"
transport:
keepAliveMaxRequests: 42
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888"
[entryPoints.name.transport]
keepAliveMaxRequests = 42
CLI
## Static configuration
--entryPoints.name.address=:8888
--entryPoints.name.transport.keepAliveMaxRequests=42
keepAliveMaxTime
Optional, Default=0s
The maximum duration Traefik can handle requests before sending a Connection: Close
header to the client (for HTTP2, Traefik sends a GOAWAY). Zero means no limit.
File (YAML)
## Static configuration
entryPoints:
name:
address: ":8888"
transport:
keepAliveMaxTime: 42s
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.name]
address = ":8888"
[entryPoints.name.transport]
keepAliveMaxTime = 42s
CLI
## Static configuration
--entryPoints.name.address=:8888
--entryPoints.name.transport.keepAliveMaxTime=42s
ProxyProtocol
Traefik supports PROXY protocol version 1 and 2.
If PROXY protocol header parsing is enabled for the entry point, this entry point can accept connections with or without PROXY protocol headers.
If the PROXY protocol header is passed, then the version is determined automatically.
proxyProtocol.trustedIPs
Enabling PROXY protocol with Trusted IPs.
File (YAML)
## Static configuration
entryPoints:
web:
address: ":80"
proxyProtocol:
trustedIPs:
- "127.0.0.1/32"
- "192.168.1.7"
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.web]
address = ":80"
[entryPoints.web.proxyProtocol]
trustedIPs = ["127.0.0.1/32", "192.168.1.7"]
CLI
--entryPoints.web.address=:80
--entryPoints.web.proxyProtocol.trustedIPs=127.0.0.1/32,192.168.1.7
IPs in trustedIPs
only will lead to remote client address replacement: Declare load-balancer IPs or CIDR range here.
proxyProtocol.insecure
Insecure Mode (Testing Environment Only).
In a test environments, you can configure Traefik to trust every incoming connection. Doing so, every remote client address will be replaced (trustedIPs
won’t have any effect)
File (YAML)
## Static configuration
entryPoints:
web:
address: ":80"
proxyProtocol:
insecure: true
File (TOML)
## Static configuration
[entryPoints]
[entryPoints.web]
address = ":80"
[entryPoints.web.proxyProtocol]
insecure = true
CLI
--entryPoints.web.address=:80
--entryPoints.web.proxyProtocol.insecure
Queuing Traefik behind Another Load Balancer
When queuing Traefik behind another load-balancer, make sure to configure PROXY protocol on both sides. Not doing so could introduce a security risk in your system (enabling request forgery).
HTTP Options
This whole section is dedicated to options, keyed by entry point, that will apply only to HTTP routing.
Redirection
HTTPS redirection (80 to 443)
File (YAML)
entryPoints:
web:
address: :80
http:
redirections:
entryPoint:
to: websecure
scheme: https
websecure:
address: :443
File (TOML)
[entryPoints.web]
address = ":80"
[entryPoints.web.http]
[entryPoints.web.http.redirections]
[entryPoints.web.http.redirections.entryPoint]
to = "websecure"
scheme = "https"
[entryPoints.websecure]
address = ":443"
CLI
--entryPoints.web.address=:80
--entryPoints.web.http.redirections.entryPoint.to=websecure
--entryPoints.web.http.redirections.entryPoint.scheme=https
--entryPoints.websecure.address=:443
entryPoint
This section is a convenience to enable (permanent) redirecting of all incoming requests on an entry point (e.g. port 80
) to another entry point (e.g. port 443
) or an explicit port (:443
).
entryPoint.to
Required
The target element, it can be:
- an entry point name (ex:
websecure
) - a port (
:443
)
File (YAML)
entryPoints:
foo:
# ...
http:
redirections:
entryPoint:
to: websecure
File (TOML)
[entryPoints.foo]
# ...
[entryPoints.foo.http.redirections]
[entryPoints.foo.http.redirections.entryPoint]
to = "websecure"
CLI
--entryPoints.foo.http.redirections.entryPoint.to=websecure
entryPoint.scheme
Optional, Default=”https”
The redirection target scheme.
File (YAML)
entryPoints:
foo:
# ...
http:
redirections:
entryPoint:
# ...
scheme: https
File (TOML)
[entryPoints.foo]
# ...
[entryPoints.foo.http.redirections]
[entryPoints.foo.http.redirections.entryPoint]
# ...
scheme = "https"
CLI
--entryPoints.foo.http.redirections.entryPoint.scheme=https
entryPoint.permanent
Optional, Default=true
To apply a permanent redirection.
File (YAML)
entryPoints:
foo:
# ...
http:
redirections:
entryPoint:
# ...
permanent: true
File (TOML)
[entryPoints.foo]
# ...
[entryPoints.foo.http.redirections]
[entryPoints.foo.http.redirections.entryPoint]
# ...
permanent = true
CLI
--entryPoints.foo.http.redirections.entrypoint.permanent=true
entryPoint.priority
Optional, Default=MaxInt-1
Priority of the generated router.
File (YAML)
entryPoints:
foo:
# ...
http:
redirections:
entryPoint:
# ...
priority: 10
File (TOML)
[entryPoints.foo]
# ...
[entryPoints.foo.http.redirections]
[entryPoints.foo.http.redirections.entryPoint]
# ...
priority = 10
CLI
--entryPoints.foo.http.redirections.entrypoint.priority=10
EncodeQuerySemicolons
Optional, Default=false
The encodeQuerySemicolons
option allows to enable query semicolons encoding. One could use this option to avoid non-encoded semicolons to be interpreted as query parameter separators by Traefik. When using this option, the non-encoded semicolons characters in query will be transmitted encoded to the backend.
File (YAML)
entryPoints:
websecure:
address: ':443'
http:
encodeQuerySemicolons: true
File (TOML)
[entryPoints.websecure]
address = ":443"
[entryPoints.websecure.http]
encodeQuerySemicolons = true
CLI
--entryPoints.websecure.address=:443
--entryPoints.websecure.http.encodequerysemicolons=true
Examples
EncodeQuerySemicolons | Request Query | Resulting Request Query |
---|---|---|
false | foo=bar;baz=bar | foo=bar&baz=bar |
true | foo=bar;baz=bar | foo=bar%3Bbaz=bar |
false | foo=bar&baz=bar;foo | foo=bar&baz=bar&foo |
true | foo=bar&baz=bar;foo | foo=bar&baz=bar%3Bfoo |
Middlewares
The list of middlewares that are prepended by default to the list of middlewares of each router associated to the named entry point.
File (YAML)
entryPoints:
websecure:
address: ':443'
http:
middlewares:
- auth@file
- strip@file
File (TOML)
[entryPoints.websecure]
address = ":443"
[entryPoints.websecure.http]
middlewares = ["auth@file", "strip@file"]
CLI
--entryPoints.websecure.address=:443
--entryPoints.websecure.http.middlewares=auth@file,strip@file
TLS
This section is about the default TLS configuration applied to all routers associated with the named entry point.
If a TLS section (i.e. any of its fields) is user-defined, then the default configuration does not apply at all.
The TLS section is the same as the TLS section on HTTP routers.
File (YAML)
entryPoints:
websecure:
address: ':443'
http:
tls:
options: foobar
certResolver: leresolver
domains:
- main: example.com
sans:
- foo.example.com
- bar.example.com
- main: test.com
sans:
- foo.test.com
- bar.test.com
File (TOML)
[entryPoints.websecure]
address = ":443"
[entryPoints.websecure.http.tls]
options = "foobar"
certResolver = "leresolver"
[[entryPoints.websecure.http.tls.domains]]
main = "example.com"
sans = ["foo.example.com", "bar.example.com"]
[[entryPoints.websecure.http.tls.domains]]
main = "test.com"
sans = ["foo.test.com", "bar.test.com"]
CLI
--entryPoints.websecure.address=:443
--entryPoints.websecure.http.tls.options=foobar
--entryPoints.websecure.http.tls.certResolver=leresolver
--entryPoints.websecure.http.tls.domains[0].main=example.com
--entryPoints.websecure.http.tls.domains[0].sans=foo.example.com,bar.example.com
--entryPoints.websecure.http.tls.domains[1].main=test.com
--entryPoints.websecure.http.tls.domains[1].sans=foo.test.com,bar.test.com
Let’s Encrypt
File (YAML)
entryPoints:
websecure:
address: ':443'
http:
tls:
certResolver: leresolver
File (TOML)
[entryPoints.websecure]
address = ":443"
[entryPoints.websecure.http.tls]
certResolver = "leresolver"
CLI
--entryPoints.websecure.address=:443
--entryPoints.websecure.http.tls.certResolver=leresolver
UDP Options
This whole section is dedicated to options, keyed by entry point, that will apply only to UDP routing.
Timeout
Optional, Default=3s
Timeout defines how long to wait on an idle session before releasing the related resources. The Timeout value must be greater than zero.
File (YAML)
entryPoints:
foo:
address: ':8000/udp'
udp:
timeout: 10s
File (TOML)
[entryPoints.foo]
address = ":8000/udp"
[entryPoints.foo.udp]
timeout = "10s"
CLI
--entryPoints.foo.address=:8000/udp
--entryPoints.foo.udp.timeout=10s
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