grafana: provision loki

services/grafana/index.ts

@@ -1,8 +1,11 @@
 import assert from "node:assert";
+import { join } from "node:path";
 import { Alpine } from "../../alpine.js";
 import { Runit } from "../../runit/index.js";
 import { loadGrafanaSecretsFile } from "./secrets.js";
 
+const provisioningDir = "/etc/grafana/provisioning/";
+
 // TODO: grafana-image-renderer?
 // /etc/conf.d/grafana
 // # To enable image rendering run
@@ -31,6 +34,20 @@ export async function setupGrafana(
   });
   await alpine.writeFile("/etc/grafana.ini", await genConfig(), user);
 
+  await alpine.writeFile(
+    join(provisioningDir, "datasources/loki.yaml"),
+    `
+apiVersion: 1
+
+datasources:
+  - name: Loki
+    type: loki
+    access: proxy
+    url: http://localhost:3100
+`,
+    user
+  );
+
   await alpine.sudoWriteExecutable(
     "/usr/local/sbin/nulo-grafana-cli",
     `#!/bin/sh
@@ -45,16 +62,7 @@ export GRAFANA_HOME=/var/lib/grafana
 
 cd "$GRAFANA_HOME"
 
-install -o grafana -m755 -d \
+exec chpst -u grafana:grafana grafana-server -config /etc/grafana.ini -homepath /usr/share/grafana
-		$GRAFANA_HOME/provisioning \
-		$GRAFANA_HOME/provisioning/dashboards \
-		$GRAFANA_HOME/provisioning/datasources \
-		$GRAFANA_HOME/provisioning/notifiers \
-		$GRAFANA_HOME/provisioning/alerting \
-		$GRAFANA_HOME/provisioning/plugins
-
-exec chpst -u grafana:grafana grafana-server -config /etc/grafana.ini -homepath /usr/share/grafana \
-cfg:paths.provisioning="$GRAFANA_HOME"/provisioning
 `
   );
 }
@@ -81,7 +89,7 @@ data = /var/lib/grafana
 plugins = /var/lib/grafana/plugins
 
 # folder that contains provisioning config files that grafana will apply on startup and while running.
-;provisioning = conf/provisioning
+provisioning = ${provisioningDir}
 
 #################################### Server ####################################
 [server]