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Custom DH parameters for perfect forward secrecy
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< a href = "https://github.com/kubernetes/ingress-nginx/edit/master/docs/examples/customization/custom-headers/README.md" title = "Edit this page" class = "md-icon md-content__icon" >  < / a >
< h1 id = "custom-headers" > Custom Headers< a class = "headerlink" href = "#custom-headers" title = "Permanent link" > ¶ < / a > < / h1 >
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< p > This example demonstrates configuration of the nginx ingress controller via
a ConfigMap to pass a custom list of headers to the upstream
server.< / p >
< p > < a href = "custom-headers.yaml" > custom-headers.yaml< / a > defines a ConfigMap in the < code class = "codehilite" > ingress-nginx< / code > namespace named < code class = "codehilite" > custom-headers< / code > , holding several custom X-prefixed HTTP headers.< / p >
< div class = "codehilite" > < pre > < span > < / span > < span class = "go" > kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/custom-headers.yaml< / span >
< / pre > < / div >
< p > < a href = "configmap.yaml" > configmap.yaml< / a > defines a ConfigMap in the < code class = "codehilite" > ingress-nginx< / code > namespace named < code class = "codehilite" > nginx-configuration< / code > . This controls the < a href = "../../../user-guide/nginx-configuration/configmap/" > global configuration< / a > of the ingress controller, and already exists in a standard installation. The key < code class = "codehilite" > proxy-set-headers< / code > is set to cite the previously-created < code class = "codehilite" > ingress-nginx/custom-headers< / code > ConfigMap.< / p >
< div class = "codehilite" > < pre > < span > < / span > < span class = "go" > kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/configmap.yaml< / span >
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< p > The nginx ingress controller will read the < code class = "codehilite" > ingress-nginx/nginx-configuration< / code > ConfigMap, find the < code class = "codehilite" > proxy-set-headers< / code > key, read HTTP headers from the < code class = "codehilite" > ingress-nginx/custom-headers< / code > ConfigMap, and include those HTTP headers in all requests flowing from nginx to the backends.< / p >
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< h2 id = "test" > Test< a class = "headerlink" href = "#test" title = "Permanent link" > ¶ < / a > < / h2 >
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< p > Check the contents of the ConfigMaps are present in the nginx.conf file using:
< code class = "codehilite" > kubectl exec nginx-ingress-controller-873061567-4n3k2 -n ingress-nginx cat /etc/nginx/nginx.conf< / code > < / p >
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