refactor loki

ct/loki.sh

@@ -31,18 +31,24 @@ function update_script() {
 
   msg_info "Stopping Loki"
   systemctl stop loki
+  if systemctl is-active --quiet promtail 2>/dev/null || dpkg -s promtail >/dev/null 2>&1; then
     systemctl stop promtail
+  fi
   msg_ok "Stopped Loki"
 
   msg_info "Updating Loki"
-  $STD apt update
+  $STD apt-get update
-  $STD apt --only-upgrade install -y loki
+  $STD apt-get --only-upgrade install -y loki
-  $STD apt --only-upgrade install -y promtail
+  if dpkg -s promtail >/dev/null 2>&1; then
+    $STD apt-get --only-upgrade install -y promtail
+  fi
   msg_ok "Updated Loki"
 
   msg_info "Starting Loki"
   systemctl start loki
+  if dpkg -s promtail >/dev/null 2>&1; then
     systemctl start promtail
+  fi
   msg_ok "Started Loki"
   msg_ok "Updated successfully!"
   exit

install/alpine-loki-install.sh

@@ -16,26 +16,75 @@ update_os
 msg_info "Installing Loki"
 $STD apk add loki
 $STD sed -i '/http_addr/s/127.0.0.1/0.0.0.0/g' /etc/conf.d/loki
-$STD rc-service loki start
+
+mkdir -p /var/lib/loki/{chunks,boltdb-shipper-active,boltdb-shipper-cache}
+chown -R loki:grafana /var/lib/loki
+mkdir -p /var/log/loki
+chown -R loki:grafana /var/log/loki
+
+cat <<EOF >/etc/loki/loki-local-config.yaml
+auth_enabled: false
+
+server:
+  http_listen_port: 3100
+  log_level: info
+
+common:
+  instance_addr: 127.0.0.1
+  path_prefix: /var/lib/loki
+  storage:
+    filesystem:
+      chunks_directory: /var/lib/loki/chunks
+      rules_directory: /var/lib/loki/rules
+  replication_factor: 1
+  ring:
+    kvstore:
+      store: inmemory
+
+schema_config:
+  configs:
+    - from: 2020-10-24
+      store: tsdb
+      object_store: filesystem
+      schema: v13
+      index:
+        prefix: index_
+        period: 24h
+
+query_range:
+  results_cache:
+    cache:
+      embedded_cache:
+        enabled: true
+        max_size_mb: 100
+
+limits_config:
+  metric_aggregation_enabled: true
+
+ruler:
+  alertmanager_url: http://localhost:9093
+EOF
+
+chown loki:grafana /etc/loki/loki-local-config.yaml
+chmod 644 /etc/loki/loki-local-config.yaml
+
+echo "output_log=\"\${output_log:-/var/log/loki/output.log}\"" >> /etc/init.d/loki
+echo "error_log=\"\${error_log:-/var/log/loki/error.log}\"" >> /etc/init.d/loki
+echo "start_stop_daemon_args=\"\${SSD_OPTS} -1 \${output_log} -2 \${error_log}\"" >> /etc/init.d/loki
+
 $STD rc-update add loki default
-$STD mkdir /tmp/loki/
+$STD rc-service loki start
-$STD chown -R loki:grafana /tmp/loki/
-$STD mkdir /var/log/loki/
-$STD chown -R loki:grafana /var/log/loki/
-$STD chmod 755 /etc/loki/loki-local-config.yaml
-$STD sed -i '/^querier:/,/enable_multi_variant_queries: false/ s/^/#/' /etc/loki/loki-local-config.yaml
-$STD echo "output_log=\"\${output_log:-/var/log/loki/output.log}\"" >> /etc/init.d/loki
-$STD echo "error_log=\"\${error_log:-/var/log/loki/error.log}\"" >> /etc/init.d/loki
-$STD echo "start_stop_daemon_args=\"\${SSD_OPTS} -1 \${output_log} -2 \${error_log}\"" >> /etc/init.d/loki
-$STD rc-service loki restart
 msg_ok "Installed Loki"
 
+read -rp "Would you like to install Promtail? (y/N): " INSTALL_PROMTAIL
+if [[ "${INSTALL_PROMTAIL,,}" =~ ^(y|yes)$ ]]; then
   msg_info "Installing Promtail"
   $STD apk add loki-promtail
-$STD sed -i '/http_addr/s/127.0.0.1/0.0.0.0/g' /etc/conf.d/loki
+  $STD sed -i '/http_addr/s/127.0.0.1/0.0.0.0/g' /etc/conf.d/loki-promtail
-$STD rc-service loki-promtail start
   $STD rc-update add loki-promtail default
+  $STD rc-service loki-promtail start
   msg_ok "Installed Promtail"
+fi
 
 motd_ssh
 customize

install/loki-install.sh

@@ -20,17 +20,68 @@ setup_deb822_repo \
   "https://apt.grafana.com" \
   "stable" \
   "main"
-msg_ok "Grafana Repository setup sucessfully"
+msg_ok "Grafana Repository setup successfully"
 
 msg_info "Installing Loki"
 $STD apt install -y loki
+
+mkdir -p /var/lib/loki/{chunks,boltdb-shipper-active,boltdb-shipper-cache}
+chown -R loki:loki /var/lib/loki
+
+cat <<EOF >/etc/loki/config.yml
+auth_enabled: false
+
+server:
+  http_listen_port: 3100
+  log_level: info
+
+common:
+  instance_addr: 127.0.0.1
+  path_prefix: /var/lib/loki
+  storage:
+    filesystem:
+      chunks_directory: /var/lib/loki/chunks
+      rules_directory: /var/lib/loki/rules
+  replication_factor: 1
+  ring:
+    kvstore:
+      store: inmemory
+
+schema_config:
+  configs:
+    - from: 2020-10-24
+      store: tsdb
+      object_store: filesystem
+      schema: v13
+      index:
+        prefix: index_
+        period: 24h
+
+query_range:
+  results_cache:
+    cache:
+      embedded_cache:
+        enabled: true
+        max_size_mb: 100
+
+limits_config:
+  metric_aggregation_enabled: true
+
+ruler:
+  alertmanager_url: http://localhost:9093
+EOF
+
+chown loki:loki /etc/loki/config.yml
 systemctl enable -q --now loki
 msg_ok "Installed Loki"
 
+read -rp "Would you like to install Promtail? (y/N): " INSTALL_PROMTAIL
+if [[ "${INSTALL_PROMTAIL,,}" =~ ^(y|yes)$ ]]; then
   msg_info "Installing Promtail"
   $STD apt install -y promtail
   systemctl enable -q --now promtail
   msg_ok "Installed Promtail"
+fi
 
 motd_ssh
 customize