Logging Improvements #18

Merged
stefan merged 8 commits from master into stable 2020-09-08 15:13:53 +00:00
7 changed files with 68 additions and 24 deletions

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@ -2,7 +2,7 @@ apiVersion: v2
name: kubezero-logging
description: KubeZero Umbrella Chart for complete EFK stack
type: application
version: 0.3.1
version: 0.3.2
appVersion: 1.2.1
home: https://kubezero.com
icon: https://cdn.zero-downtime.net/assets/kubezero/logo-small-64.png
@ -23,7 +23,7 @@ dependencies:
repository: https://kubernetes-charts.storage.googleapis.com/
condition: fluentd.enabled
- name: fluent-bit
version: 0.6.3
version: 0.6.4
repository: https://zero-down-time.github.io/kubezero/
# repository: https://fluent.github.io/helm-charts
condition: fluent-bit.enabled

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@ -2,7 +2,7 @@ kubezero-logging
================
KubeZero Umbrella Chart for complete EFK stack
Current chart version is `0.3.1`
Current chart version is `0.3.2`
Source code can be found [here](https://kubezero.com)
@ -11,7 +11,7 @@ Source code can be found [here](https://kubezero.com)
| Repository | Name | Version |
|------------|------|---------|
| https://kubernetes-charts.storage.googleapis.com/ | fluentd | 2.5.1 |
| https://zero-down-time.github.io/kubezero/ | fluent-bit | 0.6.3 |
| https://zero-down-time.github.io/kubezero/ | fluent-bit | 0.6.4 |
| https://zero-down-time.github.io/kubezero/ | kubezero-lib | >= 0.1.3 |
## Changes from upstream
@ -32,10 +32,16 @@ Source code can be found [here](https://kubezero.com)
- increased timeout to ES to 3 minutes
### FluentD
### Fluent-bit
- support for dedot Lua filter to replace "." with "_" for all annotations and labels
- support for api audit log
## Manual tasks ATM
- Install index template
- install index template
- setup Kibana
- create `logstash-*` Index Pattern
@ -50,7 +56,7 @@ Source code can be found [here](https://kubezero.com)
| es.s3Snapshot.enabled | bool | `false` | |
| es.s3Snapshot.iamrole | string | `""` | |
| fluent-bit.config.filters | string | `"[FILTER]\n Name kubernetes\n Match kube.*\n Merge_Log On\n Keep_Log Off\n K8S-Logging.Parser On\n K8S-Logging.Exclude On\n\n[FILTER]\n Name lua\n Match kube.*\n script /fluent-bit/etc/functions.lua\n call dedot\n"` | |
| fluent-bit.config.inputs | string | `"[INPUT]\n Name tail\n Path /var/log/containers/*.log\n Parser cri\n Tag kube.*\n Mem_Buf_Limit 5MB\n Skip_Long_Lines On\n Refresh_Interval 10\n DB /var/log/flb_kube.db\n DB.Sync Normal\n"` | |
| fluent-bit.config.inputs | string | `"[INPUT]\n Name tail\n Path /var/log/containers/*.log\n Parser cri\n Tag kube.*\n Mem_Buf_Limit 5MB\n Skip_Long_Lines On\n Refresh_Interval 10\n DB /var/log/flb_kube.db\n DB.Sync Normal\n[INPUT]\n Name tail\n Path /var/log/kubernetes/audit.log\n Parser json\n Tag kube.api.audit\n Mem_Buf_Limit 5MB\n Skip_Long_Lines On\n Refresh_Interval 60\n DB /var/log/flb_kube_audit.db\n DB.Sync Normal\n"` | |
| fluent-bit.config.lua | string | `"function dedot(tag, timestamp, record)\n if record[\"kubernetes\"] == nil then\n return 0, 0, 0\n end\n dedot_keys(record[\"kubernetes\"][\"annotations\"])\n dedot_keys(record[\"kubernetes\"][\"labels\"])\n return 1, timestamp, record\nend\n\nfunction dedot_keys(map)\n if map == nil then\n return\n end\n local new_map = {}\n local changed_keys = {}\n for k, v in pairs(map) do\n local dedotted = string.gsub(k, \"%.\", \"_\")\n if dedotted ~= k then\n new_map[dedotted] = v\n changed_keys[k] = true\n end\n end\n for k in pairs(changed_keys) do\n map[k] = nil\n end\n for k, v in pairs(new_map) do\n map[k] = v\n end\nend\n"` | |
| fluent-bit.config.outputs | string | `"[OUTPUT]\n Match *\n Name forward\n Host logging-fluentd\n Port 24224\n tls on\n tls.verify off\n Shared_Key cloudbender\n"` | |
| fluent-bit.config.service | string | `"[SERVICE]\n Flush 5\n Daemon Off\n Log_Level warn\n Parsers_File parsers.conf\n Parsers_File custom_parsers.conf\n HTTP_Server On\n HTTP_Listen 0.0.0.0\n HTTP_Port 2020\n"` | |

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@ -25,10 +25,16 @@
- increased timeout to ES to 3 minutes
### FluentD
### Fluent-bit
- support for dedot Lua filter to replace "." with "_" for all annotations and labels
- support for api audit log
## Manual tasks ATM
- Install index template
- install index template
- setup Kibana
- create `logstash-*` Index Pattern
@ -39,3 +45,4 @@
- https://www.elastic.co/downloads/elastic-cloud-kubernetes
- https://github.com/elastic/cloud-on-k8s
- https://grafana.com/grafana/dashboards/7752

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@ -1,5 +0,0 @@
#!/bin/bash
# We only need to delete the service monitor and virtual service, others will be taken over by the new chart and we dont loose data
kubectl delete -n logging VirtualService kibana-logging
kubectl delete -n logging ServiceMonitor es-logging

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@ -542,7 +542,6 @@ spec:
description: DaemonSet specifies the Beat should be deployed as a DaemonSet,
and allows providing its spec. Cannot be used along with `deployment`.
If both are absent a default for the Type is used.
properties: {}
type: object
deployment:
description: Deployment specifies the Beat should be deployed as a Deployment,

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@ -31,7 +31,7 @@ fluentd:
enabled: false
image:
repository: quay.io/fluentd_elasticsearch/fluentd
tag: v2.9.0
tag: v3.0.4
istio:
enabled: false
@ -158,7 +158,18 @@ fluentd:
</buffer>
</match>
# filter.conf: |
filter.conf: |
<filter kube.**>
@type parser
key_name message
remove_key_name_field true
reserve_data true
emit_invalid_record_to_error false
<parse>
@type json
</parse>
</filter>
# <filter auth system.auth>
# @type parser
# key_name message
@ -222,8 +233,24 @@ fluent-bit:
Refresh_Interval 10
DB /var/log/flb_kube.db
DB.Sync Normal
[INPUT]
Name tail
Path /var/log/kubernetes/audit.log
Parser json
Tag kube.api.audit
Mem_Buf_Limit 5MB
Skip_Long_Lines On
Refresh_Interval 60
DB /var/log/flb_kube_audit.db
DB.Sync Normal
filters: |
[FILTER]
Name lua
Match kube.*
script /fluent-bit/etc/functions.lua
call reassemble_cri_logs
[FILTER]
Name kubernetes
Match kube.*
@ -280,6 +307,25 @@ fluent-bit:
end
end
local reassemble_state = {}
function reassemble_cri_logs(tag, timestamp, record)
-- IMPORTANT: reassemble_key must be unique for each parser stream
-- otherwise entries from different sources will get mixed up.
-- Either make sure that your parser tags satisfy this or construct
-- reassemble_key some other way
local reassemble_key = tag
-- if partial line, accumulate
if record.logtag == 'P' then
reassemble_state[reassemble_key] = reassemble_state[reassemble_key] or "" .. record.message
return -1, 0, 0
end
-- otherwise it's a full line, concatenate with accumulated partial lines if any
record.message = reassemble_state[reassemble_key] or "" .. (record.message or "")
reassemble_state[reassemble_key] = nil
return 1, timestamp, record
end
serviceMonitor:
enabled: true
namespace: monitoring

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@ -1,9 +0,0 @@
#!/bin/bash
[ -f istio-authorization-policy.yaml ] && kubectl delete -f istio-authorization-policy.yaml
[ -f istio-service.yaml ] && kubectl delete -f istio-service.yaml
kubectl delete -f manifests
kubectl delete -f manifests/setup
kubectl delete namespace monitoring