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upgrade all nginx examples to latest version moved some examples from contrib to this repo
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| Original file line number | Diff line number | Diff line change |
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| # External authentication | ||
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| ### Example 1: | ||
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| Use an external service (Basic Auth) located in `https://httpbin.org` | ||
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| ``` | ||
| $ kubectl create -f ingress.yaml | ||
| ingress "external-auth" created | ||
| $ kubectl get ing external-auth | ||
| NAME HOSTS ADDRESS PORTS AGE | ||
| external-auth external-auth-01.sample.com 172.17.4.99 80 13s | ||
| $ kubectl get ing external-auth -o yaml | ||
| apiVersion: extensions/v1beta1 | ||
| kind: Ingress | ||
| metadata: | ||
| annotations: | ||
| ingress.kubernetes.io/auth-url: https://httpbin.org/basic-auth/user/passwd | ||
| creationTimestamp: 2016-10-03T13:50:35Z | ||
| generation: 1 | ||
| name: external-auth | ||
| namespace: default | ||
| resourceVersion: "2068378" | ||
| selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/external-auth | ||
| uid: 5c388f1d-8970-11e6-9004-080027d2dc94 | ||
| spec: | ||
| rules: | ||
| - host: external-auth-01.sample.com | ||
| http: | ||
| paths: | ||
| - backend: | ||
| serviceName: echoheaders | ||
| servicePort: 80 | ||
| path: / | ||
| status: | ||
| loadBalancer: | ||
| ingress: | ||
| - ip: 172.17.4.99 | ||
| $ | ||
| ``` | ||
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| Test 1: no username/password (expect code 401) | ||
| ``` | ||
| $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' | ||
| * Rebuilt URL to: http://172.17.4.99/ | ||
| * Trying 172.17.4.99... | ||
| * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) | ||
| > GET / HTTP/1.1 | ||
| > Host: external-auth-01.sample.com | ||
| > User-Agent: curl/7.50.1 | ||
| > Accept: */* | ||
| > | ||
| < HTTP/1.1 401 Unauthorized | ||
| < Server: nginx/1.11.3 | ||
| < Date: Mon, 03 Oct 2016 14:52:08 GMT | ||
| < Content-Type: text/html | ||
| < Content-Length: 195 | ||
| < Connection: keep-alive | ||
| < WWW-Authenticate: Basic realm="Fake Realm" | ||
| < | ||
| <html> | ||
| <head><title>401 Authorization Required</title></head> | ||
| <body bgcolor="white"> | ||
| <center><h1>401 Authorization Required</h1></center> | ||
| <hr><center>nginx/1.11.3</center> | ||
| </body> | ||
| </html> | ||
| * Connection #0 to host 172.17.4.99 left intact | ||
| ``` | ||
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| Test 2: valid username/password (expect code 200) | ||
| ``` | ||
| $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:passwd' | ||
| * Rebuilt URL to: http://172.17.4.99/ | ||
| * Trying 172.17.4.99... | ||
| * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) | ||
| * Server auth using Basic with user 'user' | ||
| > GET / HTTP/1.1 | ||
| > Host: external-auth-01.sample.com | ||
| > Authorization: Basic dXNlcjpwYXNzd2Q= | ||
| > User-Agent: curl/7.50.1 | ||
| > Accept: */* | ||
| > | ||
| < HTTP/1.1 200 OK | ||
| < Server: nginx/1.11.3 | ||
| < Date: Mon, 03 Oct 2016 14:52:50 GMT | ||
| < Content-Type: text/plain | ||
| < Transfer-Encoding: chunked | ||
| < Connection: keep-alive | ||
| < | ||
| CLIENT VALUES: | ||
| client_address=10.2.60.2 | ||
| command=GET | ||
| real path=/ | ||
| query=nil | ||
| request_version=1.1 | ||
| request_uri=http://external-auth-01.sample.com:8080/ | ||
| SERVER VALUES: | ||
| server_version=nginx: 1.9.11 - lua: 10001 | ||
| HEADERS RECEIVED: | ||
| accept=*/* | ||
| authorization=Basic dXNlcjpwYXNzd2Q= | ||
| connection=close | ||
| host=external-auth-01.sample.com | ||
| user-agent=curl/7.50.1 | ||
| x-forwarded-for=10.2.60.1 | ||
| x-forwarded-host=external-auth-01.sample.com | ||
| x-forwarded-port=80 | ||
| x-forwarded-proto=http | ||
| x-real-ip=10.2.60.1 | ||
| BODY: | ||
| * Connection #0 to host 172.17.4.99 left intact | ||
| -no body in request- | ||
| ``` | ||
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| Test 3: invalid username/password (expect code 401) | ||
| ``` | ||
| curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:user' | ||
| * Rebuilt URL to: http://172.17.4.99/ | ||
| * Trying 172.17.4.99... | ||
| * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) | ||
| * Server auth using Basic with user 'user' | ||
| > GET / HTTP/1.1 | ||
| > Host: external-auth-01.sample.com | ||
| > Authorization: Basic dXNlcjp1c2Vy | ||
| > User-Agent: curl/7.50.1 | ||
| > Accept: */* | ||
| > | ||
| < HTTP/1.1 401 Unauthorized | ||
| < Server: nginx/1.11.3 | ||
| < Date: Mon, 03 Oct 2016 14:53:04 GMT | ||
| < Content-Type: text/html | ||
| < Content-Length: 195 | ||
| < Connection: keep-alive | ||
| * Authentication problem. Ignoring this. | ||
| < WWW-Authenticate: Basic realm="Fake Realm" | ||
| < | ||
| <html> | ||
| <head><title>401 Authorization Required</title></head> | ||
| <body bgcolor="white"> | ||
| <center><h1>401 Authorization Required</h1></center> | ||
| <hr><center>nginx/1.11.3</center> | ||
| </body> | ||
| </html> | ||
| * Connection #0 to host 172.17.4.99 left intact | ||
| ``` |
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| @@ -0,0 +1,15 @@ | ||
| apiVersion: extensions/v1beta1 | ||
| kind: Ingress | ||
| metadata: | ||
| annotations: | ||
| ingress.kubernetes.io/auth-url: "https://httpbin.org/basic-auth/user/passwd" | ||
| name: external-auth | ||
| spec: | ||
| rules: | ||
| - host: external-auth-01.sample.com | ||
| http: | ||
| paths: | ||
| - backend: | ||
| serviceName: echoheaders | ||
| servicePort: 80 | ||
| path: / |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,82 @@ | ||
| This example shows how is possible to use a custom backend to render custom error pages. The code of this example is located here [nginx-debug-server](https://github.com/aledbf/contrib/tree/nginx-debug-server) | ||
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| The idea is to use the headers `X-Code` and `X-Format` that NGINX pass to the backend in case of an error to find out the best existent representation of the response to be returned. i.e. if the request contains an `Accept` header of type `json` the error should be in that format and not in `html` (the default in NGINX). | ||
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| First create the custom backend to use in the Ingress controller | ||
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| ``` | ||
| $ kubectl create -f custom-default-backend.yaml | ||
| service "nginx-errors" created | ||
| replicationcontroller "nginx-errors" created | ||
| ``` | ||
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| ``` | ||
| $ kubectl get svc | ||
| NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE | ||
| echoheaders 10.3.0.7 nodes 80/TCP 23d | ||
| kubernetes 10.3.0.1 <none> 443/TCP 34d | ||
| nginx-errors 10.3.0.102 <none> 80/TCP 11s | ||
| ``` | ||
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| ``` | ||
| $ kubectl get rc | ||
| CONTROLLER REPLICAS AGE | ||
| echoheaders 1 19d | ||
| nginx-errors 1 19s | ||
| ``` | ||
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| Next create the Ingress controller executing | ||
| ``` | ||
| $ kubectl create -f rc-custom-errors.yaml | ||
| ``` | ||
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| Now to check if this is working we use curl: | ||
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| ``` | ||
| $ curl -v http://172.17.4.99/ | ||
| * Trying 172.17.4.99... | ||
| * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) | ||
| > GET / HTTP/1.1 | ||
| > Host: 172.17.4.99 | ||
| > User-Agent: curl/7.43.0 | ||
| > Accept: */* | ||
| > | ||
| < HTTP/1.1 404 Not Found | ||
| < Server: nginx/1.10.0 | ||
| < Date: Wed, 04 May 2016 02:53:45 GMT | ||
| < Content-Type: text/html | ||
| < Transfer-Encoding: chunked | ||
| < Connection: keep-alive | ||
| < Vary: Accept-Encoding | ||
| < | ||
| <span>The page you're looking for could not be found.</span> | ||
| * Connection #0 to host 172.17.4.99 left intact | ||
| ``` | ||
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| Specifying json as expected format: | ||
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| ``` | ||
| $ curl -v http://172.17.4.99/ -H 'Accept: application/json' | ||
| * Trying 172.17.4.99... | ||
| * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) | ||
| > GET / HTTP/1.1 | ||
| > Host: 172.17.4.99 | ||
| > User-Agent: curl/7.43.0 | ||
| > Accept: application/json | ||
| > | ||
| < HTTP/1.1 404 Not Found | ||
| < Server: nginx/1.10.0 | ||
| < Date: Wed, 04 May 2016 02:54:00 GMT | ||
| < Content-Type: text/html | ||
| < Transfer-Encoding: chunked | ||
| < Connection: keep-alive | ||
| < Vary: Accept-Encoding | ||
| < | ||
| { "message": "The page you're looking for could not be found" } | ||
| * Connection #0 to host 172.17.4.99 left intact | ||
| ``` | ||
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| By default the Ingress controller provides support for `html`, `json` and `XML`. |
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31
examples/customization/custom-errors/nginx/custom-default-backend.yaml
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| apiVersion: v1 | ||
| kind: Service | ||
| metadata: | ||
| name: nginx-errors | ||
| labels: | ||
| app: nginx-errors | ||
| spec: | ||
| ports: | ||
| - port: 80 | ||
| targetPort: 80 | ||
| protocol: TCP | ||
| name: http | ||
| selector: | ||
| app: nginx-errors | ||
| --- | ||
| apiVersion: v1 | ||
| kind: ReplicationController | ||
| metadata: | ||
| name: nginx-errors | ||
| spec: | ||
| replicas: 1 | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: nginx-errors | ||
| spec: | ||
| containers: | ||
| - name: nginx-errors | ||
| image: aledbf/nginx-error-server:0.1 | ||
| ports: | ||
| - containerPort: 80 |
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51
examples/customization/custom-errors/nginx/rc-custom-errors.yaml
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| apiVersion: v1 | ||
| kind: ReplicationController | ||
| metadata: | ||
| name: nginx-ingress-controller | ||
| labels: | ||
| k8s-app: nginx-ingress-lb | ||
| spec: | ||
| replicas: 1 | ||
| selector: | ||
| k8s-app: nginx-ingress-lb | ||
| template: | ||
| metadata: | ||
| labels: | ||
| k8s-app: nginx-ingress-lb | ||
| name: nginx-ingress-lb | ||
| spec: | ||
| terminationGracePeriodSeconds: 60 | ||
| containers: | ||
| - image: gcr.io/google_containers/nginx-ingress-controller:0.9.0-beta.2 | ||
| name: nginx-ingress-lb | ||
| imagePullPolicy: Always | ||
| readinessProbe: | ||
| httpGet: | ||
| path: /healthz | ||
| port: 10254 | ||
| scheme: HTTP | ||
| livenessProbe: | ||
| httpGet: | ||
| path: /healthz | ||
| port: 10254 | ||
| scheme: HTTP | ||
| initialDelaySeconds: 10 | ||
| timeoutSeconds: 1 | ||
| # use downward API | ||
| env: | ||
| - name: POD_NAME | ||
| valueFrom: | ||
| fieldRef: | ||
| fieldPath: metadata.name | ||
| - name: POD_NAMESPACE | ||
| valueFrom: | ||
| fieldRef: | ||
| fieldPath: metadata.namespace | ||
| ports: | ||
| - containerPort: 80 | ||
| hostPort: 80 | ||
| - containerPort: 443 | ||
| hostPort: 443 | ||
| args: | ||
| - /nginx-ingress-controller | ||
| - --default-backend-service=$(POD_NAMESPACE)/nginx-errors |
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