Update installation instructions

Signed-off-by: Michel Hollands <michel.hollands@gmail.com>

README.md

@@ -1,20 +1,9 @@
 # meta-monitoring-chart
 
-This is a meta-monitoring chart for GEL, GEM and GET. It should be installed in a
-separate namespace next to GEM, GEL or GET installations.
+This is a meta-monitoring chart for Loki.
 
 Note that this is pre-production software at the moment.
 
-## Preparation
-
-Create a values.yaml file based on the [default one](../charts/meta-monitoring/values.yaml).
-
-1. Add or remove the namespaces to monitor in the `namespacesToMonitor` setting
-
-1. Set the cluster name in the `clusterName` setting. This will be added as a label to all logs, metrics and traces.
-
-1. Create a `meta` namespace.
-
 ## Local and cloud modes
 
 The chart has 2 modes: local and cloud. In the local mode logs, metrics and/or traces are sent
@@ -34,12 +23,6 @@ Both modes can be enabled at the same time.
 
 ## Installation
 
-```
-helm install -n meta --skip-crds -f values.yaml meta ./charts/meta-monitoring
-```
-
-If the platform supports CRDs the `--skip-crds` option can be removed. However the CRDs are not used by this chart.
-
 For more instructions including how to update the chart go to the [installation](docs/installation.md) page.
 
 ## Supported features
@@ -59,7 +42,6 @@ Most of these features are enabled by default. See the values.yaml file for how
 
 ## Caveats
 
-- The [loki.source.kubernetes](https://grafana.com/docs/agent/latest/flow/reference/components/loki.source.kubernetes/) component of the Grafana Agent is used to scrape Kubernetes log files. This component is marked experimental at the moment.
 - This has not been tested on Openshift yet.
 - The underlying Loki, Mimir and Tempo are at the default size installed by the Helm chart. This might need changing when monitoring bigger Loki, Mimir or Tempo installations.
 - MinIO is used as storage at the moment with a limited retention. At the moment this chart cannot be used for monitoring over longer periods.

docs/installation.md

@@ -1,5 +1,19 @@
 # Install this chart
 
+## Cloud mode (preferred)
+
+1. Use an existing Grafana Cloud account or setup a new one. Then create an access token:
+
+   1. In Grafana go to Administration -> Users and Access -> Cloud access policies.
+
+   1. Click `Create access policy`.
+
+   1. Fill in the `Display name` field and check the `Write` check box for metrics, logs and traces. Then click `Create`.
+
+   1. On the newly created access policy click `Add token`.
+
+   1. Fill in the `Token name` field and click `Create`. Make a copy of the token as it will be used later on.
+
 1. Create the meta namespace
 
    ```
@@ -11,21 +25,39 @@
    ```
    kubectl create secret generic logs -n meta \
     --from-literal=username=<logs username> \
-    --from-literal=password=<logs password>
+    --from-literal=password=<token>
     --from-literal=endpoint='https://logs-prod-us-central1.grafana.net/loki/api/v1/push'
 
    kubectl create secret generic metrics -n meta \
     --from-literal=username=<metrics username> \
-    --from-literal=password=<metrics password>
+    --from-literal=password=<token>
     --from-literal=endpoint='https://prometheus-us-central1.grafana.net/api/prom/push'
 
    kubectl create secret generic traces -n meta \
     --from-literal=username=<traces username> \
-    --from-literal=password=<traces password>
+    --from-literal=password=<token>
     --from-literal=endpoint='https://tempo-us-central1.grafana.net/tempo'
    ```
 
-1. Create a values.yaml file based on the [default one](../charts/meta-monitoring/values.yaml). Fill in the names of the secrets created above as needed.
+   The logs, metrics and traces usernames are the `User / Username / Instance IDs` of the Loki, Prometheus/Mimir and Tempo instances in Grafana Cloud. From `Home` in Grafana click on `Stacks`. Then go to the `Details` pages of Loki, Prometheus/Mimir and Tempo.
+
+1. Create a values.yaml file based on the [default one](../charts/meta-monitoring/values.yaml). Fill in the names of the secrets created above as needed. An example minimal values.yaml looks like this:
+
+   ```
+   namespacesToMonitor:
+   - loki
+
+   cloud:
+     logs:
+       enabled: true
+       secret: "logs"
+     metrics:
+       enabled: true
+       secret: "metrics"
+     traces:
+       enabled: true
+       secret: "traces"
+   ```
 
 1. Add the repo
 
@@ -56,4 +88,27 @@
 
    ```
    helm delete -n meta meta
-   ```
+   ```
+
+## Local mode
+
+1. Create the meta namespace
+
+   ```
+   kubectl create namespace meta
+   ```
+
+1. Create a values.yaml file based on the [default one](../charts/meta-monitoring/values.yaml). An example minimal values.yaml looks like this:
+
+   ```
+   namespacesToMonitor:
+   - loki
+
+   cloud:
+     logs:
+       enabled: false
+     metrics:
+       enabled: false
+     traces:
+       enabled: false
+   ```