From c32547e4aca5c0e6b0b2ea687e275cebe20a4f6b Mon Sep 17 00:00:00 2001 From: Pat Date: Wed, 22 Jun 2022 11:33:14 +0100 Subject: [PATCH] kubernetes: disable non-helm (#828) * kubernetes: disable non-helm Signed-off-by: Patrick Stephens * kubernetes: helm default Signed-off-by: Patrick Stephens --- installation/kubernetes.md | 70 +++----------------------------------- 1 file changed, 5 insertions(+), 65 deletions(-) diff --git a/installation/kubernetes.md b/installation/kubernetes.md index e76c47171..f9ceda9fd 100644 --- a/installation/kubernetes.md +++ b/installation/kubernetes.md @@ -31,79 +31,19 @@ To obtain this information, a built-in filter plugin called _kubernetes_ talks t ## Installation -[Fluent Bit](http://fluentbit.io) must be deployed as a DaemonSet, so on that way it will be available on every node of your Kubernetes cluster. To get started run the following commands to create the namespace, service account and role setup: +[Fluent Bit](http://fluentbit.io) should be deployed as a DaemonSet, so on that way it will be available on every node of your Kubernetes cluster. -For Kubernetes v1.21 and below - -``` -$ kubectl create namespace logging -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/fluent-bit-service-account.yaml -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/fluent-bit-role.yaml -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/fluent-bit-role-binding.yaml -``` - -For Kubernetes v1.22 - -``` -$ kubectl create namespace logging -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/fluent-bit-service-account.yaml -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/fluent-bit-role-1.22.yaml -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/fluent-bit-role-binding-1.22.yaml -``` - -The next step is to create a ConfigMap that will be used by our Fluent Bit DaemonSet: - -``` -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/output/elasticsearch/fluent-bit-configmap.yaml -``` - -The default configmap assumes that dockershim is utilized for the cluster. If a CRI runtime, such as containerd or CRI-O, is being utilized, the [CRI parser](https://github.com/fluent/fluent-bit/blob/master/conf/parsers.conf#L106-L112) should be utilized. More specifically, change the `Parser` described in `input-kubernetes.conf` from docker to cri. +The recommended way to deploy Fluent Bit is with the official Helm Chart: https://github.com/fluent/helm-chart ### Note for OpenShift -If you are using Red Hat OpenShift you will also need to run the following +If you are using Red Hat OpenShift you will also need to set up security context constraints (SCC): ``` $ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/fluent-bit-openshift-security-context-constraints.yaml ``` -### Note for Kubernetes < v1.16 - -For Kubernetes versions older than v1.16, the DaemonSet resource is not available on `apps/v1` , the resource is available on `apiVersion: extensions/v1beta1` . Our current Daemonset Yaml files uses the new `apiVersion`. - -If you are using and older Kubernetes version, manually grab a copy of your Daemonset Yaml file and replace the value of `apiVersion` from: - -```yaml -apiVersion: apps/v1 -``` - -to - -```yaml -apiVersion: extensions/v1beta1 -``` - -You can read more about this deprecation on Kubernetes v1.14 Changelog here: - -[https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.14.md#deprecations](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.14.md#deprecations) - -### Fluent Bit to Elasticsearch - -Fluent Bit DaemonSet ready to be used with Elasticsearch on a normal Kubernetes Cluster: - -``` -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/output/elasticsearch/fluent-bit-ds.yaml -``` - -### Fluent Bit to Elasticsearch on Minikube - -If you are using Minikube for testing purposes, use the following alternative DaemonSet manifest: - -``` -$ kubectl create -f https://raw.githubusercontent.com/fluent/fluent-bit-kubernetes-logging/master/output/elasticsearch/fluent-bit-ds-minikube.yaml -``` - -## Installing with Helm Chart +### Installing with Helm Chart [Helm](https://helm.sh) is a package manager for Kubernetes and allows you to quickly deploy application packages into your running cluster. Fluent Bit is distributed via a helm chart found in the Fluent Helm Charts repo: [https://github.com/fluent/helm-charts](https://github.com/fluent/helm-charts). @@ -116,7 +56,7 @@ helm repo add fluent https://fluent.github.io/helm-charts To validate that the repo was added you can run `helm search repo fluent` to ensure the charts were added. The default chart can then be installed by running the following ``` -helm install fluent-bit fluent/fluent-bit +helm upgrade --install fluent-bit fluent/fluent-bit ``` ### Default Values