doc(k8s): add documentation.
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Fernandez Ludovic
Traefiker
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1 changed files with 74 additions and 34 deletions
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@ -100,40 +100,80 @@ See [label-selectors](https://kubernetes.io/docs/concepts/overview/working-with-
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The following general annotations are applicable on the Ingress object:
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- `traefik.frontend.rule.type: PathPrefixStrip`
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Override the default frontend rule type. Default: `PathPrefix`.
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- `traefik.frontend.priority: "3"`
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Override the default frontend rule priority.
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- `traefik.frontend.redirect.entryPoint: https`:
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Enables Redirect to another entryPoint for that frontend (e.g. HTTPS).
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- `traefik.frontend.redirect.regex: ^http://localhost/(.*)`:
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Redirect to another URL for that frontend. Must be set with `traefik.frontend.redirect.replacement`.
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- `traefik.frontend.redirect.replacement: http://mydomain/$1`:
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Redirect to another URL for that frontend. Must be set with `traefik.frontend.redirect.regex`.
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- `traefik.frontend.entryPoints: http,https`
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Override the default frontend endpoints.
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- `traefik.frontend.passTLSCert: true`
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Override the default frontend PassTLSCert value. Default: `false`.
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- `ingress.kubernetes.io/rewrite-target: /users`
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Replaces each matched Ingress path with the specified one, and adds the old path to the `X-Replaced-Path` header.
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- `ingress.kubernetes.io/whitelist-source-range: "1.2.3.0/24, fe80::/16"`
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A comma-separated list of IP ranges permitted for access. all source IPs are permitted if the list is empty or a single range is ill-formatted.
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| Annotation | Description |
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|---------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------|
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| `traefik.ingress.kubernetes.io/buffering: <YML>` | (3) See [buffering](/configuration/commons/#buffering) section. |
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| `traefik.ingress.kubernetes.io/error-pages: <YML>` | (1) See [custom error pages](/configuration/commons/#custom-error-pages) section. |
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| `traefik.ingress.kubernetes.io/frontend-entry-points: http,https` | Override the default frontend endpoints. |
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| `traefik.ingress.kubernetes.io/pass-tls-cert: true` | Override the default frontend PassTLSCert value. Default: `false`. |
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| `traefik.ingress.kubernetes.io/preserve-host: true` | Forward client `Host` header to the backend. |
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| `traefik.ingress.kubernetes.io/priority: "3"` | Override the default frontend rule priority. |
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| `traefik.ingress.kubernetes.io/rate-limit: <YML>` | (2) See [custom error pages](/configuration/commons/#rate-limiting) section. |
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| `traefik.ingress.kubernetes.io/redirect-entry-point: https` | Enables Redirect to another entryPoint for that frontend (e.g. HTTPS). |
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| `traefik.ingress.kubernetes.io/redirect-regex: ^http://localhost/(.*)` | Redirect to another URL for that frontend. Must be set with `traefik.ingress.kubernetes.io/redirect-replacement`. |
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| `traefik.ingress.kubernetes.io/redirect-replacement: http://mydomain/$1` | Redirect to another URL for that frontend. Must be set with `traefik.ingress.kubernetes.io/redirect-regex`. |
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| `traefik.ingress.kubernetes.io/rewrite-target: /users` | Replaces each matched Ingress path with the specified one, and adds the old path to the `X-Replaced-Path` header. |
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| `traefik.ingress.kubernetes.io/rule-type: PathPrefixStrip` | Override the default frontend rule type. Default: `PathPrefix`. |
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| `traefik.ingress.kubernetes.io/whitelist-source-range: "1.2.3.0/24, fe80::/16"` | A comma-separated list of IP ranges permitted for access. all source IPs are permitted if the list is empty or a single range is ill-formatted. |
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<1> `traefik.ingress.kubernetes.io/error-pages` example:
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```yaml
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foo:
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status:
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- "404"
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backend: bar
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query: /bar
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fii:
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status:
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- "503"
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- "500"
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backend: bar
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query: /bir
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```
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<2> `traefik.ingress.kubernetes.io/rate-limit` example:
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```yaml
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extractorfunc: client.ip
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rateset:
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bar:
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period: 3s
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average: 6
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burst: 9
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foo:
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period: 6s
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average: 12
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burst: 18
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```
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<3> `traefik.ingress.kubernetes.io/buffering` example:
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```yaml
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maxrequestbodybytes: 10485760
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memrequestbodybytes: 2097153
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maxresponsebodybytes: 10485761
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memresponsebodybytes: 2097152
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retryexpression: IsNetworkError() && Attempts() <= 2
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```
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!!! note
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Please note that `traefik.frontend.redirect.regex` and `traefik.frontend.redirect.replacement` do not have to be set if `traefik.frontend.redirect.entryPoint` is defined for the redirection (they will not be used in this case).
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Please note that `traefik.ingress.kubernetes.io/redirect-regex` and `traefik.ingress.kubernetes.io/redirect-replacement` do not have to be set if `traefik.ingress.kubernetes.io/redirect-entry-point` is defined for the redirection (they will not be used in this case).
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The following annotations are applicable on the Service object associated with a particular Ingress object:
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- `traefik.backend.loadbalancer.method=drr`
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Override the default `wrr` load balancer algorithm.
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- `traefik.backend.loadbalancer.stickiness=true`
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Enable backend sticky sessions.
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- `traefik.backend.loadbalancer.stickiness.cookieName=NAME`
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Manually set the cookie name for sticky sessions.
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- `traefik.backend.loadbalancer.sticky=true`
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Enable backend sticky sessions (DEPRECATED).
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- `traefik.backend.circuitbreaker: <expression>`
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Set the circuit breaker expression for the backend.
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| Annotation | Description |
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|--------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `traefik.backend.loadbalancer.sticky=true` | Enable backend sticky sessions (DEPRECATED). |
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| `traefik.ingress.kubernetes.io/affinity: true` | Enable backend sticky sessions. |
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| `traefik.ingress.kubernetes.io/circuit-breaker-expression: <expression>` | Set the circuit breaker expression for the backend. |
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| `traefik.ingress.kubernetes.io/load-balancer-method: drr` | Override the default `wrr` load balancer algorithm. |
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| `traefik.ingress.kubernetes.io/max-conn-amount: 10` | Set a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect. |
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| `traefik.ingress.kubernetes.io/max-conn-extractor-func: client.ip` | Set the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect. |
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| `traefik.ingress.kubernetes.io/session-cookie-name: <NAME>` | Manually set the cookie name for sticky sessions. |
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!!! note
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`traefik.ingress.kubernetes.io/` and `ingress.kubernetes.io/` are supported prefixes.
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### Security annotations
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@ -167,10 +207,10 @@ The following security annotations are applicable on the Ingress object:
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Is possible to add additional authentication annotations to the Ingress object.
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The source of the authentication is a Secret object that contains the credentials.
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- `ingress.kubernetes.io/auth-type`: `basic`
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Contains the authentication type. The only permitted type is `basic`.
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- `ingress.kubernetes.io/auth-secret`: `mysecret`
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Contains the username and password with access to the paths defined in the Ingress object.
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| Annotation | Description |
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|----------------------------------------------|--------------------------------------------------------------------------------------------|
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| `ingress.kubernetes.io/auth-type:basic` | Contains the authentication type. The only permitted type is `basic`. |
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| `ingress.kubernetes.io/auth-secret:mysecret` | Contains the username and password with access to the paths defined in the Ingress object. |
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The secret must be created in the same namespace as the Ingress object.
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