With Realize LogInsight 8.4 came with official support for Kubernetes logs. For more details on What’s New in vRealize Log Insight 8.4 you can refer to the announcement here
If you have been following the blog I had published my own fluentd container image on dockerhub for Log Insight which was then leveraged to create the official image.
In this blog, I would like to present the Helm Chart which I built for vRealize LogInsight using the official image.
It deploys fluentd as deamon set to collect logs from Kubernetes Cluster. I have verified with the following flavors
- Tanzu Kubernetes Grid (TKG) K8 Cluster.
- Vanilla K8 Clusters deployed on vSphere.
What is Helm?
Helmis a package manager for Kubernetes. Helm is the best way to find, share, and use software built for Kubernetes.
What are Helm charts?
Helm Charts are Kubernetes YAML manifests combined into a single package that can be deployed to K8 environments. Once packaged, installing a Helm Chart into your cluster is as easy as running a single helm command, which simplifies the deployment & upgrade process
What does it do?
- Creates Namespace
- Creates required Clusterole/bindings, service accounts.
- Deploys fluentd as daemon set which fetches the logs and forwards it to vRLI.
Pre-requisites
You need to have the following pre-requisites
- vRealize LogInsight FQDN/IP
- Helm Version = \’3.x\’
- Admin access to the Kubernetes Cluster
Installing the Chart – Procedure 1
Step 1 – Add Chart Repo
helm repo add loginsight https://munishpalmakhija.github.io/loginsight-helm-fluentd/
Step 2 – Get Values file in your working directory
helm show values loginsight/loginsight-helm-fluentd > values.yaml
Step 3 – Update Values file with API Token and other relevant details.
cat values.yaml
Step 4 – Install Chart.
helm install vrli-fluentd-helm-test loginsight/loginsight-helm-fluentd -f values.yaml
Step 5 – Verify Kubernetes Pods
kubectl get pods -A | grep vrli-fluentd-helm-test
Step 6 – Verify Helm Release
helm list
Installing the Chart – Procedure 2
Step 1 – Add Chart Repo
helm repo add loginsight https://munishpalmakhija.github.io/loginsight-helm-fluentd/
Step 2 – Install Chart by setting values during run time.
helm install vrli-fluentd-helm-test loginsight/loginsight-helm-fluentd/ --set vrli.host=SETME --set tag.environment=tanzu_k8s_grid
Step 3 – Verify Kubernetes Pods
kubectl get pods -A | grep vrli-fluentd-helm-test
Step 4 – Verify Helm Release
helm list
Verify Logs
Related Blogs
Great to see the kubernetes logs can be integrated for integrated view