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Kubernetes Config

This directory contains Kubernetes manifest templates and installation scripts for rendering the templates so they can be applied against Kubernetes.

Manifests:

Installation script:

Install Scripts

There are two installation scripts, one for metrics and the other for logs. Each install script does the following:

  1. Prmopts the user for their remote target credentials (Prometheus remote_write, Loki client).
  2. Downloads the manifest template from GitHub
  3. Substitutes variables in the template with the provided input from step 1.
  4. Prints out the final manifest to stdout without applying it.

Here's a script to copy and paste to install the Agent on Kubernetes for collecting metrics, logs, and traces (requires envsubst (GNU gettext)):

NAMESPACE="default" /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/grafana/agent/release/production/kubernetes/install.sh)" | kubectl apply -f -
NAMESPACE="default" /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/grafana/agent/release/production/kubernetes/install-loki.sh)" | kubectl apply -f -
NAMESPACE="default" /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/grafana/agent/release/production/kubernetes/install-tempo.sh)" | kubectl apply -f -

Manually Applying

Since the manifest files are just templates, note that they are not ready for applying out of the box and you will have to manually reroduce the steps that the installation script does:

  1. Download the manifest as manifest.yaml.

  2. Modify your copy of the manifest, replacing all variables with the appropriate values.

  3. Apply the modified manifest file: kubectl -ndefault apply -f manifest.yaml.

Rebuilding the manifests

The manifests provided are created using Grafana Labs' production Tanka configs with some default values. If you want to build the YAML file with some custom values, you will need the following pieces of software installed:

  1. Tanka >= v0.8
  2. jsonnet-bundler >= v0.2.1

See the template Tanka environment for the current settings that initialize the Grafana Agent Tanka configs. To build the YAML file, execute the ./build/build.sh script or run make example-kubernetes from the project's root directory.