copy from official addon

grafana/rootfs/etc/s6-overlay/s6-rc.d/init-grafana/run

@@ -0,0 +1,69 @@
+#!/command/with-contenv bashio
+# shellcheck shell=bash
+# ==============================================================================
+# Home Assistant Community Add-on: Grafana
+# Configures Grafana
+# ==============================================================================
+readonly CONFIG="/etc/grafana/grafana.ini"
+declare ingress_entry
+declare log_level
+
+# Symlink the new style config directory to the old one. People might have
+# configurations for Grafana that access the database via the old path.
+ln -s "/homeassistant" "/config" \
+    || bashio::log.warning "Failed linking Home Assistant configuration alias"
+
+# Configures Grafana with the add-on log level
+log_level="Info"
+if bashio::config.exists 'log_level'; then
+    case "$(bashio::string.lower "$(bashio::config 'log_level')")" in
+        all|trace)
+            log_level="Trace"
+            ;;
+        debug)
+            log_level="Debug"
+            ;;
+        info|notice)
+            log_level="Info"
+            ;;
+        warning)
+            log_level="Warn"
+            ;;
+        error)
+            log_level="Error"
+            ;;
+        fatal|off)
+            log_level="Critical"
+            ;;
+    esac
+fi
+sed -i "s/level = Info/level = ${log_level}/g" "${CONFIG}"
+
+# Sets unique secret key used for signing cookies.
+if ! bashio::fs.file_exists "/data/secret"; then
+    echo "${SUPERVISOR_TOKEN}" > /data/secret
+fi
+secret=$(</data/secret)
+sed -i "s/secret_key.*/secret_key = ${secret}/g" "${CONFIG}"
+
+ingress_entry=$(bashio::addon.ingress_entry)
+sed -i "s#%%ingress_entry%%#${ingress_entry}#g" "${CONFIG}"
+
+# Install user configured/requested Grafana plugins
+if bashio::config.has_value 'plugins'; then
+    for plugin in $(bashio::config 'plugins'); do
+        grafana-cli plugins install "$plugin" \
+            || bashio::exit.nok "Failed installing Grafana plugin: ${plugin}"
+    done
+fi
+
+# Install user configured/requested Grafana custom plugins (from URL)
+if bashio::config.has_value 'custom_plugins'; then
+    for plugin in $(bashio::config 'custom_plugins|keys'); do
+        name=$(bashio::config "custom_plugins[${plugin}].name")
+        url=$(bashio::config "custom_plugins[${plugin}].url")
+        bashio::log.debug "Installing custom plugin ${name} from ${url}"
+        grafana-cli --pluginUrl ${url} plugins install $name \
+            || bashio::exit.nok "Failed installing Grafana custom plugin: ${name} from: ${url}"
+    done
+fi