Filebeat is not sending logs to logstash on kubernetes
Question
I'm trying to send kubernetes' logs with Filebeat and Logstash. I do have some deployment on the same namespace.
I tried the suggested configuration for filebeat.yml from elastic in this [link].( https://raw.githubusercontent.com/elastic/beats/7.x/deploy/kubernetes/filebeat-kubernetes.yaml )
So, this is my overall configuration:
filebeat.yml
filebeat.inputs:
- type: container
paths:
- '/var/lib/docker/containers/*.log'
processors:
- add_kubernetes_metadata:
host: ${NODE_NAME}
matchers:
- logs_path:
logs_path: "/var/log/containers/"
# To enable hints based autodiscover, remove `filebeat.inputs` configuration and uncomment this:
#filebeat.autodiscover:
# providers:
# - type: kubernetes
# node: ${NODE_NAME}
# hints.enabled: true
# hints.default_config:
# type: container
# paths:
# - /var/log/containers/*${data.kubernetes.container.id}.log
output.logstash:
hosts: ['logstash.default.svc.cluster.local:5044']
Logstash Deployment
apiVersion: apps/v1
kind: Deployment
metadata:
name: logstash-deployment
namespace: default
spec:
replicas: 1
selector:
matchLabels:
app: logstash
template:
metadata:
labels:
app: logstash
spec:
containers:
- name: logstash
image: docker.elastic.co/logstash/logstash:7.15.0
ports:
- containerPort: 5044
volumeMounts:
- name: config-volume
mountPath: /usr/share/logstash/config
- name: logstash-pipeline-volume
mountPath: /usr/share/logstash/pipeline
volumes:
- name: config-volume
configMap:
name: logstash-configmap
items:
- key: logstash.yml
path: logstash.yml
- name: logstash-pipeline-volume
configMap:
name: logstash-configmap
items:
- key: logstash.conf
path: logstash.conf
Logstash Configmap
apiVersion: v1
kind: ConfigMap
metadata:
name: logstash-configmap
namespace: default
data:
logstash.yml: |
http.host: "0.0.0.0"
path.config: /usr/share/logstash/pipeline
logstash.conf: |
input {
beats {
port => 5044
}
}
output {
tcp {
mode => "client"
host => "10.184.0.4"
port => 5001
codec => "json_lines"
}
stdout {
codec => rubydebug
}
}
Logstash Service
kind: Service
apiVersion: v1
metadata:
name: logstash
namespace: default
spec:
selector:
app: logstash
ports:
- protocol: TCP
port: 5044
targetPort: 5044
Filebeat daemonset are running, also the Logstash deployment. Both of them kubectl logs shows:
Filebeat daemonset shows
2021-10-13T04:10:14.201Z INFO instance/beat.go:665 Home path: [/usr/share/filebeat] Config path: [/usr/share/filebeat] Data path: [/usr/share/filebeat/data] Logs path: [/usr/share/filebeat/logs]
2021-10-13T04:10:14.219Z INFO instance/beat.go:673 Beat ID: b90d1561-e989-4ed1-88f9-9b88045cee29
2021-10-13T04:10:14.220Z INFO [seccomp] seccomp/seccomp.go:124 Syscall filter successfully installed
2021-10-13T04:10:14.220Z INFO [beat] instance/beat.go:1014 Beat info {"system_info": {"beat": {"path": {"config": "/usr/share/filebeat", "data": "/usr/share/filebeat/data", "home": "/usr/share/filebeat", "logs": "/usr/share/filebeat/logs"}, "type": "filebeat", "uuid": "b90d1561-e989-4ed1-88f9-9b88045cee29"}}}
2021-10-13T04:10:14.220Z INFO [beat] instance/beat.go:1023 Build info {"system_info": {"build": {"commit": "9023152025ec6251bc6b6c38009b309157f10f17", "libbeat": "7.15.0", "time": "2021-09-16T03:16:09.000Z", "version": "7.15.0"}}}
2021-10-13T04:10:14.220Z INFO [beat] instance/beat.go:1026 Go runtime info {"system_info": {"go": {"os":"linux","arch":"amd64","max_procs":2,"version":"go1.16.6"}}}
2021-10-13T04:10:14.221Z INFO [beat] instance/beat.go:1030 Host info {"system_info": {"host": {"architecture":"x86_64","boot_time":"2021-10-06T19:41:55Z","containerized":true,"name":"filebeat-hvqx4","ip":["127.0.0.1/8","10.116.6.42/24"],"kernel_version":"5.4.120+","mac":["ae:ab:28:37:27:2a"],"os":{"type":"linux","family":"redhat","platform":"centos","name":"CentOS Linux","version":"7 (Core)","major":7,"minor":9,"patch":2009,"codename":"Core"},"timezone":"UTC","timezone_offset_sec":0,"id":"38c2fd0d69ba05ae64d8a4d4fc156791"}}}
2021-10-13T04:10:14.221Z INFO [beat] instance/beat.go:1059 Process info {"system_info": {"process": {"capabilities": {"inheritable":["chown","dac_override","fowner","fsetid","kill","setgid","setuid","setpcap","net_bind_service","net_raw","sys_chroot","mknod","audit_write","setfcap"],"permitted":["chown","dac_override","fowner","fsetid","kill","setgid","setuid","setpcap","net_bind_service","net_raw","sys_chroot","mknod","audit_write","setfcap"],"effective":["chown","dac_override","fowner","fsetid","kill","setgid","setuid","setpcap","net_bind_service","net_raw","sys_chroot","mknod","audit_write","setfcap"],"bounding":["chown","dac_override","fowner","fsetid","kill","setgid","setuid","setpcap","net_bind_service","net_raw","sys_chroot","mknod","audit_write","setfcap"],"ambient":null}, "cwd": "/usr/share/filebeat", "exe": "/usr/share/filebeat/filebeat", "name": "filebeat", "pid": 8, "ppid": 1, "seccomp": {"mode":"filter","no_new_privs":true}, "start_time": "2021-10-13T04:10:12.819Z"}}}
2021-10-13T04:10:14.221Z INFO instance/beat.go:309 Setup Beat: filebeat; Version: 7.15.0
2021-10-13T04:10:14.222Z INFO [publisher] pipeline/module.go:113 Beat name: filebeat-hvqx4
2021-10-13T04:10:14.224Z WARN beater/filebeat.go:178 Filebeat is unable to load the Ingest Node pipelines for the configured modules because the Elasticsearch output is not configured/enabled. If you have already loaded the Ingest Node pipelines or are using Logstash pipelines, you can ignore this warning.
2021-10-13T04:10:14.225Z INFO [monitoring] log/log.go:142 Starting metrics logging every 30s
2021-10-13T04:10:14.225Z INFO instance/beat.go:473 filebeat start running.
2021-10-13T04:10:14.227Z INFO memlog/store.go:119 Loading data file of '/usr/share/filebeat/data/registry/filebeat' succeeded. Active transaction id=0
2021-10-13T04:10:14.227Z INFO memlog/store.go:124 Finished loading transaction log file for '/usr/share/filebeat/data/registry/filebeat'. Active transaction id=0
2021-10-13T04:10:14.227Z WARN beater/filebeat.go:381 Filebeat is unable to load the Ingest Node pipelines for the configured modules because the Elasticsearch output is not configured/enabled. If you have already loaded the Ingest Node pipelines or are using Logstash pipelines, you can ignore this warning.
2021-10-13T04:10:14.228Z INFO [registrar] registrar/registrar.go:109 States Loaded from registrar: 0
2021-10-13T04:10:14.228Z INFO [crawler] beater/crawler.go:71 Loading Inputs: 1
2021-10-13T04:10:14.228Z INFO beater/crawler.go:148 Stopping Crawler
2021-10-13T04:10:14.228Z INFO beater/crawler.go:158 Stopping 0 inputs
2021-10-13T04:10:14.228Z INFO beater/crawler.go:178 Crawler stopped
2021-10-13T04:10:14.228Z INFO [registrar] registrar/registrar.go:132 Stopping Registrar
2021-10-13T04:10:14.228Z INFO [registrar] registrar/registrar.go:166 Ending Registrar
2021-10-13T04:10:14.228Z INFO [registrar] registrar/registrar.go:137 Registrar stopped
2021-10-13T04:10:44.229Z INFO [monitoring] log/log.go:184 Non-zero metrics in the last 30s {"monitoring": {"metrics": {"beat":{"cgroup":{"cpu":{"cfs":{"period":{"us":100000}},"id":"/"},"cpuacct":{"id":"/","total":{"ns":307409530}},"memory":{"id":"/","mem":{"limit":{"bytes":209715200},"usage":{"bytes":52973568}}}},"cpu":{"system":{"ticks":80,"time":{"ms":85}},"total":{"ticks":270,"time":{"ms":283},"value":270},"user":{"ticks":190,"time":{"ms":198}}},"handles":{"limit":{"hard":1048576,"soft":1048576},"open":9},"info":{"ephemeral_id":"f5abb082-a094-4f99-a046-bc183d415455","uptime":{"ms":30208},"version":"7.15.0"},"memstats":{"gc_next":19502448,"memory_alloc":10052000,"memory_sys":75056136,"memory_total":55390312,"rss":112922624},"runtime":{"goroutines":12}},"filebeat":{"harvester":{"open_files":0,"running":0}},"libbeat":{"config":{"module":{"running":0}},"output":{"events":{"active":0},"type":"logstash"},"pipeline":{"clients":0,"events":{"active":0},"queue":{"max_events":4096}}},"registrar":{"states":{"current":0}},"system":{"cpu":{"cores":2},"load":{"1":0.14,"15":0.28,"5":0.31,"norm":{"1":0.07,"15":0.14,"5":0.155}}}}}}
Logtash deployment logs shows:
Using bundled JDK: /usr/share/logstash/jdk
warning: no jvm.options file found
Could not find log4j2 configuration at path /usr/share/logstash/config/log4j2.properties. Using default config which logs errors to the console
[INFO ] 2021-10-13 08:46:58.674 [main] runner - Starting Logstash {"logstash.version"=>"7.15.0", "jruby.version"=>"jruby 9.2.19.0 (2.5.8) 2021-06-15 55810c552b OpenJDK 64-Bit Server VM 11.0.11+9 on 11.0.11+9 +jit [linux-x86_64]"}
[INFO ] 2021-10-13 08:46:58.698 [main] writabledirectory - Creating directory {:setting=>"path.queue", :path=>"/usr/share/logstash/data/queue"}
[INFO ] 2021-10-13 08:46:58.700 [main] writabledirectory - Creating directory {:setting=>"path.dead_letter_queue", :path=>"/usr/share/logstash/data/dead_letter_queue"}
[WARN ] 2021-10-13 08:46:59.077 [LogStash::Runner] multilocal - Ignoring the 'pipelines.yml' file because modules or command line options are specified
[INFO ] 2021-10-13 08:46:59.097 [LogStash::Runner] agent - No persistent UUID file found. Generating new UUID {:uuid=>"7a0e5b89-70a1-4004-b38e-c31fadcd7251", :path=>"/usr/share/logstash/data/uuid"}
[INFO ] 2021-10-13 08:47:00.950 [Api Webserver] agent - Successfully started Logstash API endpoint {:port=>9600}
[INFO ] 2021-10-13 08:47:01.468 [Converge PipelineAction::Create<main>] Reflections - Reflections took 203 ms to scan 1 urls, producing 120 keys and 417 values
[WARN ] 2021-10-13 08:47:02.496 [Converge PipelineAction::Create<main>] plain - Relying on default value of `pipeline.ecs_compatibility`, which may change in a future major release of Logstash. To avoid unexpected changes when upgrading Logstash, please explicitly declare your desired ECS Compatibility mode.
[WARN ] 2021-10-13 08:47:02.526 [Converge PipelineAction::Create<main>] beats - Relying on default value of `pipeline.ecs_compatibility`, which may change in a future major release of Logstash. To avoid unexpected changes when upgrading Logstash, please explicitly declare your desired ECS Compatibility mode.
[WARN ] 2021-10-13 08:47:02.664 [Converge PipelineAction::Create<main>] jsonlines - Relying on default value of `pipeline.ecs_compatibility`, which may change in a future major release of Logstash. To avoid unexpected changes when upgrading Logstash, please explicitly declare your desired ECS Compatibility mode.
[INFO ] 2021-10-13 08:47:02.947 [[main]-pipeline-manager] javapipeline - Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>1, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50, "pipeline.max_inflight"=>125, "pipeline.sources"=>["/usr/share/logstash/pipeline/logstash.conf"], :thread=>"#<Thread:0x3b822f13@/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:125 run>"}
[INFO ] 2021-10-13 08:47:05.467 [[main]-pipeline-manager] javapipeline - Pipeline Java execution initialization time {"seconds"=>2.52}
[INFO ] 2021-10-13 08:47:05.473 [[main]-pipeline-manager] beats - Starting input listener {:address=>"0.0.0.0:5044"}
[INFO ] 2021-10-13 08:47:05.555 [[main]-pipeline-manager] javapipeline - Pipeline started {"pipeline.id"=>"main"}
[INFO ] 2021-10-13 08:47:05.588 [Agent thread] agent - Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[INFO ] 2021-10-13 08:47:05.907 [[main]<beats] Server - Starting server on port: 5044
So, my questions are:
- Why is Filebeat not ingesting the logs from kubernetes?
- Are there different ways to use hosts logstash on filebeat.yml? Because some examples are using DNS name just like my conf. when others are just using service names.
- How to trigger/test logs to make sure my configuration is running well?
1 answers
solution1
0 ACCPTED 2021-11-03 04:18:14
My mistake, on filebeat environment I missed initiating the ENV node name. So, from the configuration above I just added
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
the filebeat running well now
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