Update README with config updates and remove release logic pull with …

…config

charts/turbinia/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: turbinia
-version: 1.1.1
+version: 1.1.2
 description: A Helm chart for Turbinia Kubernetes deployments.
 keywords:
 - turbinia

charts/turbinia/README.md

@@ -455,6 +455,100 @@ chart with the updated values.
 helm install my-release ../turbinia
 ```
 
+### Managing and updating the Turbinia config
+
+This section outlines how to deploy and manage the Turbinia configuration file
+within OSDFIR infrastructure. There are three primary methods:
+
+1. **Using Default Configurations**
+
+    If you don't provide your own Turbinia config file during deployment,
+    the Turbinia deployment will automatically retrieve the latest default configs
+    from the Turbinia Github repository. This method requires no further action from you.
+
+    > **NOTE:**  When using the default method, you cannot update the Turbinia config file directly.
+
+2. **Embedding Turbinia config in the Helm Chart**
+
+    To customize Turbinia with your own config file and include it directly in
+    the Helm chart deployment, follow these steps:
+
+    1. Download and extract the Helm chart:
+
+        ```console
+        helm pull osdfir-charts/turbinia --untar
+        cd turbinia/
+        ```
+
+    2. Download the default Turbinia config:
+
+        ```console
+        wget https://raw.githubusercontent.com/google/turbinia/master/turbinia/config/turbinia_config_tmpl.py > turbinia.conf
+        ```
+
+    3. Modify the config file then deploy the Helm chart:
+
+        ```console
+        helm install my-release ../turbinia 
+        ```
+
+        > **NOTE**: The Helm chart uses the `config.override` value in the `values.yaml` file to determine the location of your config file. By default, `config.override` is set to the root directory of the Helm chart.
+
+    To update config changes using this method:
+
+    1. Modify your Config File
+
+        Make the necessary changes to your Turbinia config file.
+
+    2. Upgrade the Helm Release:
+
+        ```console
+        helm upgrade my-release ../turbinia
+        ```
+
+        This will automatically apply the updated config changes and restart the Turbinia deployment so the changes can be picked up.
+
+
+3. **Managing Turbinia configs externally**
+
+    For more advanced configuration management, you can manage the Turbinia config
+    file independently of the Helm chart:
+
+    1. Prepare your Config File:
+
+        Organize the Turbinia config file with your desired customizations.
+
+    2. Create a ConfigMap:
+
+        ```console
+        kubectl create configmap turbinia-configs --from-file=turbinia.conf
+        ```
+
+        Replace `turbinia.conf` with the actual name of your config file.
+
+    3. Install or Upgrade the Helm Chart:
+
+        ```console
+        helm install my-release osdfir-charts/turbinia --set config.existingConfigMap="turbinia-configs"
+        ```
+
+        This command instructs the Helm chart to use the `turbinia-configs` ConfigMap for
+        Turbinia's config file.
+
+    To update the config changes using this method:
+
+    1. Update the ConfigMap:
+
+        ```console
+        kubectl create configmap turbinia-configs --from-file=turbinia.conf --dry-run -o yaml | kubectl replace -f -
+        ```
+
+    2. Restart the Turbinia deployment to apply the new configs
+
+        ```console
+        kubectl rollout restart deployment -l app.kubernetes.io/name=turbinia
+        ```
+
 ## Persistence
 
 The Turbinia deployment stores data at the `/mnt/turbiniavolume` path of the container and stores configuration files at the `/etc/turbinia` path of the container.

charts/turbinia/templates/init-configmap.yaml

@@ -23,16 +23,9 @@ data:
       cp /tmp/turbinia/* /etc/turbinia/turbinia.conf
     else
       # Pull default config if one is not already provided
-      {{- $turbiniaWorker := "us-docker.pkg.dev/osdfir-registry/turbinia/release/turbinia-worker" -}}
-      {{- if eq .Values.worker.image.repository $turbiniaWorker }}
-      echo -n "* Fetching the release Turbinia configuration file..." 
-      RELEASE_TAG=$(wget -O- https://api.github.com/repos/google/turbinia/releases | jq -r '.[0] | .tag_name')
-      wget "https://raw.githubusercontent.com/google/turbinia/$RELEASE_TAG/turbinia/config/turbinia_config_tmpl.py" -O turbinia.conf
-      {{- else }}
       echo -n "* Fetching the latest Turbinia configuration file..." 
       wget "https://raw.githubusercontent.com/google/turbinia/master/turbinia/config/turbinia_config_tmpl.py" -O turbinia.conf
       echo "OK"
-      {{- end }}
     fi
 
     # Set up the Redis connection