*: add helm chart publishing

Recommend helm chart over plain k8s manifests.

Resolves galexrt#15

Signed-off-by: Alexander Trost <[email protected]>

Author: galexrt

.github/workflows/helm-publish.yml

@@ -0,0 +1,34 @@
+name: Release Charts
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    # Depending on default permission settings for your org (contents being read-only or read-write for workloads), you will have to add permissions
+    # see: https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Install Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.8.1
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

charts/node-exporter-textfiles/Chart.yaml

@@ -21,4 +21,4 @@ version: 0.1.0
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "v20220203-125335-155"
+appVersion: "v20220922-124518-926"

kubernetes/README.md

@@ -1,4 +1,10 @@
 # kubernetes
 
+## Recommendation
+
+It is recommended to use [the `node-exporter-textfiles` Helm chart](../charts/node-exporter-textfiles/) to install and update the node_exporter textfile container.
+
+## Info
+
 This example DaemonSet runs the `smartmon.sh` and `nvme_metrics.sh` node_exporter textfile scripts.
 The data is exported to `/var/lib/node_exporter` on the nodes.

kubernetes/daemonset.yaml

@@ -1,3 +1,6 @@
+# It is recommended to use the Helm chart see
+# https://github.com/galexrt/container-node_exporter-textfiles#kubernetes
+#
 apiVersion: apps/v1
 kind: DaemonSet
 metadata:
@@ -26,7 +29,7 @@ spec:
           operator: "Exists"
       terminationGracePeriodSeconds: 5
       containers:
-      - image: quay.io/galexrt/node-exporter-textfiles:v20220203-125335-155
+      - image: quay.io/galexrt/node-exporter-textfiles:v20220922-124518-926
         name: smartmon
         env:
         - name: INTERVAL
@@ -49,7 +52,7 @@ spec:
         - mountPath: /var/lib/node_exporter
           name: host-textfile
           readOnly: false
-      - image: quay.io/galexrt/node-exporter-textfiles:v20220203-125335-155
+      - image: quay.io/galexrt/node-exporter-textfiles:v20220922-124518-926
         name: nvmemetrics
         env:
         - name: INTERVAL