haproxy-ingress is an Ingress controller that uses ConfigMap to store the haproxy configuration. This chart bootstraps an haproxy-ingress deployment on a Kubernetes cluster using the Helm package manager.
You may be interested in our ingress comparison article.
Typically, services and pods have IPs only routable by the cluster network. All traffic that ends up at an edge router is either dropped or forwarded elsewhere.
An Ingress is a collection of rules that allow inbound connections to reach the cluster services.
It can be configured to give services externally-reachable URLs, load balance traffic, terminate SSL, offer name-based virtual hosting, and more. Users request ingress by POSTing the Ingress resource to the API server. An Ingress controller is responsible for fulfilling the Ingress, usually with a load balancer, though it may also configure your edge router or additional frontends to help handle the traffic in an HA manner.
HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic websites and powers quite a number of the world’s most visited ones. Over the years it has become the de-facto standard opensource load balancer, is now shipped with most mainstream Linux distributions, and is often deployed by default in cloud platforms.
HAProxy Ingress images are built by Travis CI and the image is deployed from Travis CI to Quay.io whenever a tag is applied. The latest tag will always point to the latest stable version while canary tag will always point to the latest beta-quality and release-candidate versions.
Before the beta-quality releases, the source code could also be tagged and images deployed. The snapshot tag will always point to the latest tagged version, which could be a release, a beta-quality or a development version.
HAProxy Ingress has two types of dynamic configurations: per ingress resource using annotations, or globally using a ConfigMap resource. The controller has also static command-line arguments.
It is also possible to change the default template mounting a new template file at /etc/haproxy/template/haproxy.tmpl. This is the only file in the directory, so create a configmap with haproxy.tmpl key mounting into /etc/haproxy/template will work.
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