From 281b0799f07d72cde173e4a040dd059064a1a668 Mon Sep 17 00:00:00 2001
From: Steve Wilkerson <wilkers.steve@gmail.com>
Date: Wed, 19 Dec 2018 16:54:04 -0600
Subject: [PATCH] Write libvirt logs to host

This modifies the libvirt chart to write logs directly to the
host by default. This also modifies the fluentbit and fluentd
charts to capture libvirt logs from the host and index them into
Elasticsearch

Change-Id: I0bbc49d2c0d4cf4895f797e48f309f308ffd021f
---
 fluent-logging/values.yaml               | 31 ++++++++++++++++++++++++
 libvirt/templates/daemonset-libvirt.yaml |  5 ++++
 libvirt/values.yaml                      |  1 +
 3 files changed, 37 insertions(+)

diff --git a/fluent-logging/values.yaml b/fluent-logging/values.yaml
index ae431afaf..bd2618733 100644
--- a/fluent-logging/values.yaml
+++ b/fluent-logging/values.yaml
@@ -120,6 +120,16 @@ conf:
         DB.Sync: Normal
         Buffer_Chunk_Size: 1M
         Buffer_Max_Size: 1M
+    - libvirt:
+        header: input
+        Name: tail
+        Tag: libvirt
+        Path: /var/log/libvirt/libvirtd.log
+        DB: /var/log/libvirt.db
+        Mem_Buf_Limit: 5MB
+        DB.Sync: Normal
+        Buffer_Chunk_Size: 1M
+        Buffer_Max_Size: 1M
     - kubelet:
         header: input
         Name: systemd
@@ -142,6 +152,11 @@ conf:
         DB.Sync: Normal
         Buffer_Chunk_Size: 1M
         Buffer_Max_Size: 1M
+    - libvirt_record_modifier:
+        header: filter
+        Name: record_modifier
+        Match: libvirt
+        Record: hostname ${HOSTNAME}
     - kernel_record_modifier:
         header: filter
         Name: record_modifier
@@ -318,6 +333,22 @@ conf:
               key: application
               pattern: rabbitmq
               tag: auth.${tag}
+    - libvirt_elasticsearch:
+        header: match
+        type: elasticsearch
+        user: "#{ENV['ELASTICSEARCH_USERNAME']}"
+        password: "#{ENV['ELASTICSEARCH_PASSWORD']}"
+        expression: "libvirt"
+        include_tag_key: true
+        host: "#{ENV['ELASTICSEARCH_HOST']}"
+        port: "#{ENV['ELASTICSEARCH_PORT']}"
+        logstash_format: true
+        logstash_prefix: libvirt
+        buffer_chunk_limit: 2M
+        buffer_queue_limit: 8
+        flush_interval: "5"
+        max_retry_wait: 300
+        disable_retry_limit: ""
     - journal_elasticsearch:
         header: match
         type: elasticsearch
diff --git a/libvirt/templates/daemonset-libvirt.yaml b/libvirt/templates/daemonset-libvirt.yaml
index ec354f821..b975b8de9 100644
--- a/libvirt/templates/daemonset-libvirt.yaml
+++ b/libvirt/templates/daemonset-libvirt.yaml
@@ -166,6 +166,8 @@ spec:
               mountPath: /dev
             - name: cgroup
               mountPath: /sys/fs/cgroup
+            - name: logs
+              mountPath: /var/log/libvirt
             - name: machine-id
               mountPath: /etc/machine-id
               readOnly: true
@@ -221,6 +223,9 @@ spec:
         - name: dev
           hostPath:
             path: /dev
+        - name: logs
+          hostPath:
+            path: /var/log/libvirt
         - name: cgroup
           hostPath:
             path: /sys/fs/cgroup
diff --git a/libvirt/values.yaml b/libvirt/values.yaml
index b2551d86a..1a11193e1 100644
--- a/libvirt/values.yaml
+++ b/libvirt/values.yaml
@@ -82,6 +82,7 @@ conf:
     ca_file: ""
     listen_addr: 127.0.0.1
     log_level: "3"
+    log_outputs: "1:file:/var/log/libvirt/libvirtd.log"
   qemu:
     stdio_handler: "file"
     user: "nova"