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Remove fluentd-elasticsearch addon

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This commit is contained in:
Jordan Liggitt 2022-01-14 08:22:29 -05:00
parent 8c6b910e68
commit 5d9b7ae9e5
29 changed files with 5 additions and 1743 deletions
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2
build/dependencies.yaml
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@ -90,8 +90,6 @@ dependencies:
version: 1.17.5
refPaths:
- path: build/build-image/cross/VERSION
- path: cluster/addons/fluentd-elasticsearch/es-image/Dockerfile
match: 'FROM golang\:\d+.\d+(alpha|beta|rc)?\.?(\d+)?'
- path: staging/publishing/rules.yaml
match: 'default-go-version\: \d+.\d+(alpha|beta|rc)?\.?(\d+)?'
- path: test/images/Makefile

10
cluster/addons/fluentd-elasticsearch/OWNERS
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@ -1,10 +0,0 @@
# See the OWNERS docs at https://go.k8s.io/owners
approvers:
- coffeepac
- monotek
- sig-instrumentation-approvers
reviewers:
- sig-instrumentation-reviewers
labels:
- sig/instrumentation

90
cluster/addons/fluentd-elasticsearch/README.md
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@ -1,90 +0,0 @@
# Elasticsearch Add-On
This add-on consists of a combination of [Elasticsearch][elasticsearch],
[Fluentd][fluentd] and [Kibana][kibana]. Elasticsearch is a search engine
that is responsible for storing our logs and allowing for them to be queried.
Fluentd sends log messages from Kubernetes to Elasticsearch, whereas Kibana
is a graphical interface for viewing and querying the logs stored in
Elasticsearch.
**Note:** this addon should **not** be used as-is in production. This is
an example and you should treat it as such. Please see at least the
[Security](#security) and the [Storage](#storage) sections for more
information.
## Elasticsearch
Elasticsearch is deployed as a [StatefulSet][statefulSet], which is like
a Deployment, but allows for maintaining state on storage volumes.
### Security
Elasticsearch has capabilities to enable authorization using the [X-Pack
plugin][xPack]. For the sake of simplicity this example uses the fully open
source prebuild images from elastic that do not contain the X-Pack plugin. If
you need these features, please consider building the images from either the
"basic" or "platinum" version. After enabling these features, follow [official
documentation][setupCreds] to set up credentials in Elasticsearch and Kibana.
Don't forget to propagate those credentials also to Fluentd in its
[configuration][fluentdCreds]. You can utilize [ConfigMaps][configMap] and
[Secrets][secret] to store credentials in the Kubernetes apiserver.
### Initialization
The Elasticsearch StatefulSet manifest specifies that there shall be an
[init container][initContainer] executing before Elasticsearch containers
themselves, in order to ensure that the kernel state variable
`vm.max_map_count` is at least 262144, since this is a requirement of
Elasticsearch. You may remove the init container if you know that your host
OS meets this requirement.
### Storage
The Elasticsearch StatefulSet will use the [EmptyDir][emptyDir] volume to
store data. EmptyDir is erased when the pod terminates, here it is used only
for testing purposes. **Important:** please change the storage to persistent
volume claim before actually using this StatefulSet in your setup!
## Fluentd
Fluentd is deployed as a [DaemonSet][daemonSet] which spawns a pod on each
node that reads logs, generated by kubelet, container runtime and containers
and sends them to Elasticsearch.
Learn more in the [official Kubernetes documentation][k8sElasticsearchDocs].
## Building
Both images are now being hosted in quay.io and are built locally via `make` and `docker`.
To build locally run `make build` and then `make push` to publish.
### Known problems
Since Fluentd talks to the Elasticsearch service inside the cluster, instances
on masters won't work, because masters have no kube-proxy. Don't mark masters
with the label mentioned in the previous paragraph or add a taint on them to
avoid Fluentd pods scheduling there.
[fluentd]: http://www.fluentd.org/
[elasticsearch]: https://www.elastic.co/products/elasticsearch
[kibana]: https://www.elastic.co/products/kibana
[xPack]: https://www.elastic.co/products/x-pack
[setupCreds]: https://www.elastic.co/guide/en/x-pack/current/setting-up-authentication.html#reset-built-in-user-passwords
[fluentdCreds]: https://github.com/uken/fluent-plugin-elasticsearch#user-password-path-scheme-ssl_verify
[configMap]: https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/
[secret]: https://kubernetes.io/docs/concepts/configuration/secret/
[statefulSet]: https://kubernetes.io/docs/concepts/workloads/controllers/statefulset
[initContainer]: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/
[emptyDir]: https://kubernetes.io/docs/concepts/storage/volumes#emptydir
[daemonSet]: https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/
[k8sElasticsearchDocs]: https://kubernetes.io/docs/tasks/debug-application-cluster/logging-elasticsearch-kibana
## Running EFK stack in production
The configurations provided here for Elasticsearch, Fluentd & Kibana (EFK),
are a starting point and should not be considered to be production ready.
If you like to run these tools in a production environment you could use the
[Helm](https://helm.sh) charts, provided by the Helm community, which are used
by a lot of people and therefore are widely tested. You can find them all via the
[Helm Hub](https://hub.helm.sh/) or the [Artifact hub](https://artifacthub.io/).

8
cluster/addons/fluentd-elasticsearch/create-logging-namespace.yaml
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@ -1,8 +0,0 @@
kind: Namespace
apiVersion: v1
metadata:
name: logging
labels:
k8s-app: logging
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile

1
cluster/addons/fluentd-elasticsearch/es-image/.gitignore vendored
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@ -1 +0,0 @@
elasticsearch_logging_discovery

31
cluster/addons/fluentd-elasticsearch/es-image/Dockerfile
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@ -1,31 +0,0 @@
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
FROM golang:1.17.5 AS builder
COPY elasticsearch_logging_discovery.go go.mod go.sum /
RUN CGO_ENABLED=0 GOOS=linux GO111MODULE=on go build -a -ldflags "-w" -o /elasticsearch_logging_discovery /elasticsearch_logging_discovery.go
FROM docker.elastic.co/elasticsearch/elasticsearch:7.16.2
VOLUME ["/data"]
EXPOSE 9200 9300
COPY --from=builder /elasticsearch_logging_discovery bin/
COPY run.sh bin/
COPY config/elasticsearch.yml config/log4j2.properties config/
USER root
RUN chown -R elasticsearch:elasticsearch ./
CMD ["bin/run.sh"]

27
cluster/addons/fluentd-elasticsearch/es-image/Makefile
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@ -1,27 +0,0 @@
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
.PHONY: build push
PREFIX = quay.io/fluentd_elasticsearch
IMAGE = elasticsearch
TAG = v7.16.2
build:
docker build --tag ${PREFIX}/${IMAGE}:${TAG} .
docker build --tag ${PREFIX}/${IMAGE}:latest .
push:
docker push ${PREFIX}/${IMAGE}:${TAG}
docker push ${PREFIX}/${IMAGE}:latest

11
cluster/addons/fluentd-elasticsearch/es-image/config/elasticsearch.yml
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@ -1,11 +0,0 @@
cluster.name: kubernetes-logging
node.name: ${NODE_NAME}
node.master: ${NODE_MASTER}
node.data: ${NODE_DATA}
transport.profiles.default.port: ${TRANSPORT_PORT}
http.port: ${HTTP_PORT}
path.data: /data

11
cluster/addons/fluentd-elasticsearch/es-image/config/log4j2.properties
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@ -1,11 +0,0 @@
status = error
appender.console.type = Console
appender.console.name = console
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] %marker%m%n
rootLogger.level = info
rootLogger.appenderRef.console.ref = console
rootLogger.action = debug
rootLogger.com.amazonaws = warn

157
cluster/addons/fluentd-elasticsearch/es-image/elasticsearch_logging_discovery.go
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@ -1,157 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"context"
"flag"
"fmt"
"net"
"os"
"strconv"
"strings"
"time"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clientset "k8s.io/client-go/kubernetes"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
clientapi "k8s.io/client-go/tools/clientcmd/api"
"k8s.io/klog/v2"
utilnet "k8s.io/utils/net"
)
func buildConfigFromEnvs(masterURL, kubeconfigPath string) (*restclient.Config, error) {
if kubeconfigPath == "" && masterURL == "" {
kubeconfig, err := restclient.InClusterConfig()
if err != nil {
return nil, err
}
return kubeconfig, nil
}
return clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
&clientcmd.ClientConfigLoadingRules{ExplicitPath: kubeconfigPath},
&clientcmd.ConfigOverrides{ClusterInfo: clientapi.Cluster{Server: masterURL}}).ClientConfig()
}
func flattenSubsets(subsets []corev1.EndpointSubset) []string {
ips := []string{}
for _, ss := range subsets {
for _, addr := range ss.Addresses {
if utilnet.IsIPv6String(addr.IP) {
ips = append(ips, fmt.Sprintf(`"[%s]"`, addr.IP))
} else {
ips = append(ips, fmt.Sprintf(`"%s"`, addr.IP))
}
}
}
return ips
}
func getAdvertiseAddress() (string, error) {
addrs, err := net.InterfaceAddrs()
if err != nil {
return "", err
}
for _, addr := range addrs {
if ipnet, ok := addr.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
return ipnet.IP.String(), nil
}
}
return "", fmt.Errorf("no non-loopback address is available")
}
func main() {
flag.Parse()
klog.Info("Kubernetes Elasticsearch logging discovery")
advertiseAddress, err := getAdvertiseAddress()
if err != nil {
klog.Fatalf("Failed to get valid advertise address: %v", err)
}
fmt.Printf("network.host: \"%s\"\n\n", advertiseAddress)
cc, err := buildConfigFromEnvs(os.Getenv("APISERVER_HOST"), os.Getenv("KUBE_CONFIG_FILE"))
if err != nil {
klog.Fatalf("Failed to make client: %v", err)
}
client, err := clientset.NewForConfig(cc)
if err != nil {
klog.Fatalf("Failed to make client: %v", err)
}
namespace := metav1.NamespaceSystem
envNamespace := os.Getenv("NAMESPACE")
if envNamespace != "" {
if _, err := client.CoreV1().Namespaces().Get(context.TODO(), envNamespace, metav1.GetOptions{}); err != nil {
klog.Fatalf("%s namespace doesn't exist: %v", envNamespace, err)
}
namespace = envNamespace
}
var elasticsearch *corev1.Service
serviceName := os.Getenv("ELASTICSEARCH_SERVICE_NAME")
if serviceName == "" {
serviceName = "elasticsearch-logging"
}
// Look for endpoints associated with the Elasticsearch logging service.
// First wait for the service to become available.
for t := time.Now(); time.Since(t) < 5*time.Minute; time.Sleep(10 * time.Second) {
elasticsearch, err = client.CoreV1().Services(namespace).Get(context.TODO(), serviceName, metav1.GetOptions{})
if err == nil {
break
}
}
// If we did not find an elasticsearch logging service then log a warning
// and return without adding any unicast hosts.
if elasticsearch == nil {
klog.Warningf("Failed to find the elasticsearch-logging service: %v", err)
return
}
var endpoints *corev1.Endpoints
addrs := []string{}
// Wait for some endpoints.
count, _ := strconv.Atoi(os.Getenv("MINIMUM_MASTER_NODES"))
for t := time.Now(); time.Since(t) < 5*time.Minute; time.Sleep(10 * time.Second) {
endpoints, err = client.CoreV1().Endpoints(namespace).Get(context.TODO(), serviceName, metav1.GetOptions{})
if err != nil {
continue
}
addrs = flattenSubsets(endpoints.Subsets)
klog.Infof("Found %s", addrs)
if len(addrs) > 0 && len(addrs) >= count {
break
}
}
// If there was an error finding endpoints then log a warning and quit.
if err != nil {
klog.Warningf("Error finding endpoints: %v", err)
return
}
klog.Infof("Endpoints = %s", addrs)
fmt.Printf("discovery.seed_hosts: [%s]\n", strings.Join(addrs, ", "))
fmt.Printf("cluster.initial_master_nodes: [%s]\n", strings.Join(addrs, ", "))
}

37
cluster/addons/fluentd-elasticsearch/es-image/go.mod
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@ -1,37 +0,0 @@
module fake/import/path
go 1.16
require (
github.com/imdario/mergo v0.3.6 // indirect
k8s.io/api v0.19.2
k8s.io/apimachinery v0.19.2
k8s.io/client-go v0.19.2
k8s.io/klog/v2 v2.3.0
k8s.io/utils v0.0.0-20200729134348-d5654de09c73
)
replace (
k8s.io/api => k8s.io/api v0.19.2
k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.19.2
k8s.io/apimachinery => k8s.io/apimachinery v0.19.2
k8s.io/apiserver => k8s.io/apiserver v0.19.2
k8s.io/cli-runtime => k8s.io/cli-runtime v0.19.2
k8s.io/client-go => k8s.io/client-go v0.19.2
k8s.io/cloud-provider => k8s.io/cloud-provider v0.19.2
k8s.io/cluster-bootstrap => k8s.io/cluster-bootstrap v0.19.2
k8s.io/code-generator => k8s.io/code-generator v0.19.2
k8s.io/component-base => k8s.io/component-base v0.19.2
k8s.io/cri-api => k8s.io/cri-api v0.19.2
k8s.io/csi-translation-lib => k8s.io/csi-translation-lib v0.19.2
k8s.io/kube-aggregator => k8s.io/kube-aggregator v0.19.2
k8s.io/kube-controller-manager => k8s.io/kube-controller-manager v0.19.2
k8s.io/kube-proxy => k8s.io/kube-proxy v0.19.2
k8s.io/kube-scheduler => k8s.io/kube-scheduler v0.19.2
k8s.io/kubectl => k8s.io/kubectl v0.19.2
k8s.io/kubelet => k8s.io/kubelet v0.19.2
k8s.io/kubernetes => k8s.io/kubernetes v1.18.0
k8s.io/legacy-cloud-providers => k8s.io/legacy-cloud-providers v0.19.2
k8s.io/metrics => k8s.io/metrics v0.19.2
k8s.io/sample-apiserver => k8s.io/sample-apiserver v0.19.2
)

324
cluster/addons/fluentd-elasticsearch/es-image/go.sum
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@ -1,324 +0,0 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.51.0/go.mod h1:hWtGJ6gnXH+KgDv+V0zFGDvpi07n3z8ZNj3T1RW0Gcw=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
github.com/Azure/go-autorest/autorest v0.9.6/go.mod h1:/FALq9T/kS7b5J5qsQ+RSTUdAmGFqi0vUdVNNx8q630=
github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
github.com/Azure/go-autorest/autorest/adal v0.8.2/go.mod h1:ZjhuQClTqx435SRJ2iMlOxPYt3d2C/T/7TiQCVZSn3Q=
github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
github.com/Azure/go-autorest/autorest/date v0.2.0/go.mod h1:vcORJHLJEh643/Ioh9+vPmf1Ij9AEBM5FuBIXLmIy0g=
github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
github.com/elazarl/goproxy v0.0.0-20180725130230-947c36da3153/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/evanphx/json-patch v4.9.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
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github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
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gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
k8s.io/api v0.19.2 h1:q+/krnHWKsL7OBZg/rxnycsl9569Pud76UJ77MvKXms=
k8s.io/api v0.19.2/go.mod h1:IQpK0zFQ1xc5iNIQPqzgoOwuFugaYHK4iCknlAQP9nI=
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29
cluster/addons/fluentd-elasticsearch/es-image/run.sh
View File

@ -1,29 +0,0 @@
#!/bin/bash
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -ex
export NODE_NAME=${NODE_NAME:-${HOSTNAME}}
export NODE_MASTER=${NODE_MASTER:-true}
export NODE_DATA=${NODE_DATA:-true}
export HTTP_PORT=${HTTP_PORT:-9200}
export TRANSPORT_PORT=${TRANSPORT_PORT:-9300}
export MINIMUM_MASTER_NODES=${MINIMUM_MASTER_NODES:-2}
chown -R elasticsearch:elasticsearch /data
./bin/elasticsearch_logging_discovery >> ./config/elasticsearch.yml
exec su elasticsearch -c /usr/local/bin/docker-entrypoint.sh

26
cluster/addons/fluentd-elasticsearch/es-service.yaml
View File

@ -1,26 +0,0 @@
apiVersion: v1
kind: Service
metadata:
name: elasticsearch-logging
namespace: logging
labels:
k8s-app: elasticsearch-logging
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "Elasticsearch"
spec:
clusterIP: None
ports:
- name: db
port: 9200
protocol: TCP
targetPort: 9200
- name: transport
port: 9300
protocol: TCP
targetPort: 9300
publishNotReadyAddresses: true
selector:
k8s-app: elasticsearch-logging
sessionAffinity: None
type: ClusterIP

119
cluster/addons/fluentd-elasticsearch/es-statefulset.yaml
View File

@ -1,119 +0,0 @@
# RBAC authn and authz
apiVersion: v1
kind: ServiceAccount
metadata:
name: elasticsearch-logging
namespace: logging
labels:
k8s-app: elasticsearch-logging
addonmanager.kubernetes.io/mode: Reconcile
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: elasticsearch-logging
labels:
k8s-app: elasticsearch-logging
addonmanager.kubernetes.io/mode: Reconcile
rules:
- apiGroups:
- ""
resources:
- "services"
- "namespaces"
- "endpoints"
verbs:
- "get"
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: elasticsearch-logging
labels:
k8s-app: elasticsearch-logging
addonmanager.kubernetes.io/mode: Reconcile
subjects:
- kind: ServiceAccount
name: elasticsearch-logging
namespace: logging
apiGroup: ""
roleRef:
kind: ClusterRole
name: elasticsearch-logging
apiGroup: ""
---
# Elasticsearch deployment itself
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: elasticsearch-logging
namespace: logging
labels:
k8s-app: elasticsearch-logging
version: v7.16.2
addonmanager.kubernetes.io/mode: Reconcile
spec:
serviceName: elasticsearch-logging
replicas: 2
selector:
matchLabels:
k8s-app: elasticsearch-logging
version: v7.16.2
template:
metadata:
labels:
k8s-app: elasticsearch-logging
version: v7.16.2
spec:
serviceAccountName: elasticsearch-logging
containers:
- image: quay.io/fluentd_elasticsearch/elasticsearch:v7.16.2
name: elasticsearch-logging
imagePullPolicy: Always
resources:
# need more cpu upon initialization, therefore burstable class
limits:
cpu: 1000m
memory: 3Gi
requests:
cpu: 100m
memory: 3Gi
ports:
- containerPort: 9200
name: db
protocol: TCP
- containerPort: 9300
name: transport
protocol: TCP
livenessProbe:
tcpSocket:
port: transport
initialDelaySeconds: 5
timeoutSeconds: 10
readinessProbe:
tcpSocket:
port: transport
initialDelaySeconds: 5
timeoutSeconds: 10
volumeMounts:
- name: elasticsearch-logging
mountPath: /data
env:
- name: "NAMESPACE"
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: "MINIMUM_MASTER_NODES"
value: "1"
volumes:
- name: elasticsearch-logging
emptyDir: {}
# Elasticsearch requires vm.max_map_count to be at least 262144.
# If your OS already sets up this number to a higher value, feel free
# to remove this init container.
initContainers:
- image: alpine:3.6
command: ["/sbin/sysctl", "-w", "vm.max_map_count=262144"]
name: elasticsearch-logging-init
securityContext:
privileged: true

479
cluster/addons/fluentd-elasticsearch/fluentd-es-configmap.yaml
View File

@ -1,479 +0,0 @@
kind: ConfigMap
apiVersion: v1
metadata:
name: fluentd-es-config-v0.2.1
namespace: logging
labels:
addonmanager.kubernetes.io/mode: Reconcile
data:
system.conf: |-
<system>
root_dir /tmp/fluentd-buffers/
</system>
containers.input.conf: |-
# This configuration file for Fluentd / td-agent is used
# to watch changes to Docker log files. The kubelet creates symlinks that
# capture the pod name, namespace, container name & Docker container ID
# to the docker logs for pods in the /var/log/containers directory on the host.
# If running this fluentd configuration in a Docker container, the /var/log
# directory should be mounted in the container.
#
# These logs are then submitted to Elasticsearch which assumes the
# installation of the fluent-plugin-elasticsearch & the
# fluent-plugin-kubernetes_metadata_filter plugins.
# See https://github.com/uken/fluent-plugin-elasticsearch &
# https://github.com/fabric8io/fluent-plugin-kubernetes_metadata_filter for
# more information about the plugins.
#
# Example
# =======
# A line in the Docker log file might look like this JSON:
#
# {"log":"2014/09/25 21:15:03 Got request with path wombat\n",
# "stream":"stderr",
# "time":"2014-09-25T21:15:03.499185026Z"}
#
# The time_format specification below makes sure we properly
# parse the time format produced by Docker. This will be
# submitted to Elasticsearch and should appear like:
# $ curl 'http://elasticsearch-logging:9200/_search?pretty'
# ...
# {
# "_index" : "logstash-2014.09.25",
# "_type" : "fluentd",
# "_id" : "VBrbor2QTuGpsQyTCdfzqA",
# "_score" : 1.0,
# "_source":{"log":"2014/09/25 22:45:50 Got request with path wombat\n",
# "stream":"stderr","tag":"docker.container.all",
# "@timestamp":"2014-09-25T22:45:50+00:00"}
# },
# ...
#
# The Kubernetes fluentd plugin is used to write the Kubernetes metadata to the log
# record & add labels to the log record if properly configured. This enables users
# to filter & search logs on any metadata.
# For example a Docker container's logs might be in the directory:
#
# /var/lib/docker/containers/997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b
#
# and in the file:
#
# 997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b-json.log
#
# where 997599971ee6... is the Docker ID of the running container.
# The Kubernetes kubelet makes a symbolic link to this file on the host machine
# in the /var/log/containers directory which includes the pod name and the Kubernetes
# container name:
#
# synthetic-logger-0.25lps-pod_default_synth-lgr-997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b.log
# ->
# /var/lib/docker/containers/997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b/997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b-json.log
#
# The /var/log directory on the host is mapped to the /var/log directory in the container
# running this instance of Fluentd and we end up collecting the file:
#
# /var/log/containers/synthetic-logger-0.25lps-pod_default_synth-lgr-997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b.log
#
# This results in the tag:
#
# var.log.containers.synthetic-logger-0.25lps-pod_default_synth-lgr-997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b.log
#
# The Kubernetes fluentd plugin is used to extract the namespace, pod name & container name
# which are added to the log message as a kubernetes field object & the Docker container ID
# is also added under the docker field object.
# The final tag is:
#
# kubernetes.var.log.containers.synthetic-logger-0.25lps-pod_default_synth-lgr-997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b.log
#
# And the final log record look like:
#
# {
# "log":"2014/09/25 21:15:03 Got request with path wombat\n",
# "stream":"stderr",
# "time":"2014-09-25T21:15:03.499185026Z",
# "kubernetes": {
# "namespace": "default",
# "pod_name": "synthetic-logger-0.25lps-pod",
# "container_name": "synth-lgr"
# },
# "docker": {
# "container_id": "997599971ee6366d4a5920d25b79286ad45ff37a74494f262e3bc98d909d0a7b"
# }
# }
#
# This makes it easier for users to search for logs by pod name or by
# the name of the Kubernetes container regardless of how many times the
# Kubernetes pod has been restarted (resulting in a several Docker container IDs).
# Json Log Example:
# {"log":"[info:2016-02-16T16:04:05.930-08:00] Some log text here\n","stream":"stdout","time":"2016-02-17T00:04:05.931087621Z"}
# CRI Log Example:
# 2016-02-17T00:04:05.931087621Z stdout F [info:2016-02-16T16:04:05.930-08:00] Some log text here
<source>
@id fluentd-containers.log
@type tail
path /var/log/containers/*.log
pos_file /var/log/es-containers.log.pos
tag raw.kubernetes.*
read_from_head true
<parse>
@type multi_format
<pattern>
format json
time_key time
time_format %Y-%m-%dT%H:%M:%S.%NZ
</pattern>
<pattern>
format /^(?<time>.+) (?<stream>stdout|stderr) [^ ]* (?<log>.*)$/
time_format %Y-%m-%dT%H:%M:%S.%N%:z
</pattern>
</parse>
</source>
# Detect exceptions in the log output and forward them as one log entry.
<match raw.kubernetes.**>
@id raw.kubernetes
@type detect_exceptions
remove_tag_prefix raw
message log
stream stream
multiline_flush_interval 5
max_bytes 500000
max_lines 1000
</match>
# Concatenate multi-line logs
<filter **>
@id filter_concat
@type concat
key message
multiline_end_regexp /\n$/
separator ""
</filter>
# Enriches records with Kubernetes metadata
<filter kubernetes.**>
@id filter_kubernetes_metadata
@type kubernetes_metadata
</filter>
# Fixes json fields in Elasticsearch
<filter kubernetes.**>
@id filter_parser
@type parser
key_name log
reserve_data true
remove_key_name_field true
<parse>
@type multi_format
<pattern>
format json
</pattern>
<pattern>
format none
</pattern>
</parse>
</filter>
system.input.conf: |-
# Example:
# 2015-12-21 23:17:22,066 [salt.state ][INFO ] Completed state [net.ipv4.ip_forward] at time 23:17:22.066081
<source>
@id minion
@type tail
format /^(?<time>[^ ]* [^ ,]*)[^\[]*\[[^\]]*\]\[(?<severity>[^ \]]*) *\] (?<message>.*)$/
time_format %Y-%m-%d %H:%M:%S
path /var/log/salt/minion
pos_file /var/log/salt.pos
tag salt
</source>
# Example:
# Dec 21 23:17:22 gke-foo-1-1-4b5cbd14-node-4eoj startupscript: Finished running startup script /var/run/google.startup.script
<source>
@id startupscript.log
@type tail
format syslog
path /var/log/startupscript.log
pos_file /var/log/es-startupscript.log.pos
tag startupscript
</source>
# Examples:
# time="2016-02-04T06:51:03.053580605Z" level=info msg="GET /containers/json"
# time="2016-02-04T07:53:57.505612354Z" level=error msg="HTTP Error" err="No such image: -f" statusCode=404
# TODO(random-liu): Remove this after cri container runtime rolls out.
<source>
@id docker.log
@type tail
format /^time="(?<time>[^"]*)" level=(?<severity>[^ ]*) msg="(?<message>[^"]*)"( err="(?<error>[^"]*)")?( statusCode=($<status_code>\d+))?/
path /var/log/docker.log
pos_file /var/log/es-docker.log.pos
tag docker
</source>
# Example:
# 2016/02/04 06:52:38 filePurge: successfully removed file /var/etcd/data/member/wal/00000000000006d0-00000000010a23d1.wal
<source>
@id etcd.log
@type tail
# Not parsing this, because it doesn't have anything particularly useful to
# parse out of it (like severities).
format none
path /var/log/etcd.log
pos_file /var/log/es-etcd.log.pos
tag etcd
</source>
# Multi-line parsing is required for all the kube logs because very large log
# statements, such as those that include entire object bodies, get split into
# multiple lines by glog.
# Example:
# I0204 07:32:30.020537 3368 server.go:1048] POST /stats/container/: (13.972191ms) 200 [[Go-http-client/1.1] 10.244.1.3:40537]
<source>
@id kubelet.log
@type tail
format multiline
multiline_flush_interval 5s
format_firstline /^\w\d{4}/
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
time_format %m%d %H:%M:%S.%N
path /var/log/kubelet.log
pos_file /var/log/es-kubelet.log.pos
tag kubelet
</source>
# Example:
# I1118 21:26:53.975789 6 proxier.go:1096] Port "nodePort for kube-system/default-http-backend:http" (:31429/tcp) was open before and is still needed
<source>
@id kube-proxy.log
@type tail
format multiline
multiline_flush_interval 5s
format_firstline /^\w\d{4}/
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
time_format %m%d %H:%M:%S.%N
path /var/log/kube-proxy.log
pos_file /var/log/es-kube-proxy.log.pos
tag kube-proxy
</source>
# Example:
# I0204 07:00:19.604280 5 handlers.go:131] GET /api/v1/nodes: (1.624207ms) 200 [[kube-controller-manager/v1.1.3 (linux/amd64) kubernetes/6a81b50] 127.0.0.1:38266]
<source>
@id kube-apiserver.log
@type tail
format multiline
multiline_flush_interval 5s
format_firstline /^\w\d{4}/
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
time_format %m%d %H:%M:%S.%N
path /var/log/kube-apiserver.log
pos_file /var/log/es-kube-apiserver.log.pos
tag kube-apiserver
</source>
# Example:
# I0204 06:55:31.872680 5 servicecontroller.go:277] LB already exists and doesn't need update for service kube-system/kube-ui
<source>
@id kube-controller-manager.log
@type tail
format multiline
multiline_flush_interval 5s
format_firstline /^\w\d{4}/
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
time_format %m%d %H:%M:%S.%N
path /var/log/kube-controller-manager.log
pos_file /var/log/es-kube-controller-manager.log.pos
tag kube-controller-manager
</source>
# Example:
# W0204 06:49:18.239674 7 reflector.go:245] pkg/scheduler/factory/factory.go:193: watch of *api.Service ended with: 401: The event in requested index is outdated and cleared (the requested history has been cleared [2578313/2577886]) [2579312]
<source>
@id kube-scheduler.log
@type tail
format multiline
multiline_flush_interval 5s
format_firstline /^\w\d{4}/
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
time_format %m%d %H:%M:%S.%N
path /var/log/kube-scheduler.log
pos_file /var/log/es-kube-scheduler.log.pos
tag kube-scheduler
</source>
# Example:
# I0603 15:31:05.793605 6 cluster_manager.go:230] Reading config from path /etc/gce.conf
<source>
@id glbc.log
@type tail
format multiline
multiline_flush_interval 5s
format_firstline /^\w\d{4}/
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
time_format %m%d %H:%M:%S.%N
path /var/log/glbc.log
pos_file /var/log/es-glbc.log.pos
tag glbc
</source>
# Example:
# I0603 15:31:05.793605 6 cluster_manager.go:230] Reading config from path /etc/gce.conf
<source>
@id cluster-autoscaler.log
@type tail
format multiline
multiline_flush_interval 5s
format_firstline /^\w\d{4}/
format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
time_format %m%d %H:%M:%S.%N
path /var/log/cluster-autoscaler.log
pos_file /var/log/es-cluster-autoscaler.log.pos
tag cluster-autoscaler
</source>
# Logs from systemd-journal for interesting services.
# TODO(random-liu): Remove this after cri container runtime rolls out.
<source>
@id journald-docker
@type systemd
matches [{ "_SYSTEMD_UNIT": "docker.service" }]
<storage>
@type local
persistent true
path /var/log/journald-docker.pos
</storage>
read_from_head true
tag docker
</source>
<source>
@id journald-container-runtime
@type systemd
matches [{ "_SYSTEMD_UNIT": "{{ fluentd_container_runtime_service }}.service" }]
<storage>
@type local
persistent true
path /var/log/journald-container-runtime.pos
</storage>
read_from_head true
tag container-runtime
</source>
<source>
@id journald-kubelet
@type systemd
matches [{ "_SYSTEMD_UNIT": "kubelet.service" }]
<storage>
@type local
persistent true
path /var/log/journald-kubelet.pos
</storage>
read_from_head true
tag kubelet
</source>
<source>
@id journald-node-problem-detector
@type systemd
matches [{ "_SYSTEMD_UNIT": "node-problem-detector.service" }]
<storage>
@type local
persistent true
path /var/log/journald-node-problem-detector.pos
</storage>
read_from_head true
tag node-problem-detector
</source>
<source>
@id kernel
@type systemd
matches [{ "_TRANSPORT": "kernel" }]
<storage>
@type local
persistent true
path /var/log/kernel.pos
</storage>
<entry>
fields_strip_underscores true
fields_lowercase true
</entry>
read_from_head true
tag kernel
</source>
forward.input.conf: |-
# Takes the messages sent over TCP
<source>
@id forward
@type forward
</source>
monitoring.conf: |-
# Prometheus Exporter Plugin
# input plugin that exports metrics
<source>
@id prometheus
@type prometheus
</source>
<source>
@id monitor_agent
@type monitor_agent
</source>
# input plugin that collects metrics from MonitorAgent
<source>
@id prometheus_monitor
@type prometheus_monitor
<labels>
host ${hostname}
</labels>
</source>
# input plugin that collects metrics for output plugin
<source>
@id prometheus_output_monitor
@type prometheus_output_monitor
<labels>
host ${hostname}
</labels>
</source>
# input plugin that collects metrics for in_tail plugin
<source>
@id prometheus_tail_monitor
@type prometheus_tail_monitor
<labels>
host ${hostname}
</labels>
</source>
output.conf: |-
<match **>
@id elasticsearch
@type elasticsearch
@log_level info
type_name _doc
include_tag_key true
host elasticsearch-logging
port 9200
logstash_format true
<buffer>
@type file
path /var/log/fluentd-buffers/kubernetes.system.buffer
flush_mode interval
retry_type exponential_backoff
flush_thread_count 2
flush_interval 5s
retry_forever
retry_max_interval 30
chunk_limit_size 2M
total_limit_size 500M
overflow_action block
</buffer>
</match>

114
cluster/addons/fluentd-elasticsearch/fluentd-es-ds.yaml
View File

@ -1,114 +0,0 @@
apiVersion: v1
kind: ServiceAccount
metadata:
name: fluentd-es
namespace: logging
labels:
k8s-app: fluentd-es
addonmanager.kubernetes.io/mode: Reconcile
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: fluentd-es
labels:
k8s-app: fluentd-es
addonmanager.kubernetes.io/mode: Reconcile
rules:
- apiGroups:
- ""
resources:
- "namespaces"
- "pods"
verbs:
- "get"
- "watch"
- "list"
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: fluentd-es
labels:
k8s-app: fluentd-es
addonmanager.kubernetes.io/mode: Reconcile
subjects:
- kind: ServiceAccount
name: fluentd-es
namespace: logging
apiGroup: ""
roleRef:
kind: ClusterRole
name: fluentd-es
apiGroup: ""
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: fluentd-es-v3.1.1
namespace: logging
labels:
k8s-app: fluentd-es
version: v3.1.1
addonmanager.kubernetes.io/mode: Reconcile
spec:
selector:
matchLabels:
k8s-app: fluentd-es
version: v3.1.1
template:
metadata:
labels:
k8s-app: fluentd-es
version: v3.1.1
spec:
securityContext:
seccompProfile:
type: RuntimeDefault
priorityClassName: system-node-critical
serviceAccountName: fluentd-es
containers:
- name: fluentd-es
image: quay.io/fluentd_elasticsearch/fluentd:v3.1.0
env:
- name: FLUENTD_ARGS
value: --no-supervisor -q
resources:
limits:
memory: 500Mi
requests:
cpu: 100m
memory: 200Mi
volumeMounts:
- name: varlog
mountPath: /var/log
- name: varlibdockercontainers
mountPath: /var/lib/docker/containers
readOnly: true
- name: config-volume
mountPath: /etc/fluent/config.d
ports:
- containerPort: 24231
name: prometheus
protocol: TCP
livenessProbe:
tcpSocket:
port: prometheus
initialDelaySeconds: 5
timeoutSeconds: 10
readinessProbe:
tcpSocket:
port: prometheus
initialDelaySeconds: 5
timeoutSeconds: 10
terminationGracePeriodSeconds: 30
volumes:
- name: varlog
hostPath:
path: /var/log
- name: varlibdockercontainers
hostPath:
path: /var/lib/docker/containers
- name: config-volume
configMap:
name: fluentd-es-config-v0.2.1

69
cluster/addons/fluentd-elasticsearch/fluentd-es-image/Dockerfile
View File

@ -1,69 +0,0 @@
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This Dockerfile will build an image that is configured
# to run Fluentd with an Elasticsearch plug-in and the
# provided configuration file.
# The image acts as an executable for the binary /usr/sbin/td-agent.
# Note that fluentd is run with root permission to allow access to
# log files with root only access under /var/log/containers/*
# 1. Install & configure dependencies.
# 2. Install fluentd via ruby.
# 3. Remove build dependencies.
# 4. Cleanup leftover caches & files.
FROM ruby:2.7-slim-buster as builder
ARG DEBIAN_FRONTEND=noninteractive
COPY Gemfile /Gemfile
SHELL ["/bin/bash", "-e", "-o", "pipefail", "-c"]
# hadolint ignore=DL3008,DL3028
RUN apt-get update && \
apt-get install -y --no-install-recommends g++ gcc make && \
rm -rf /var/lib/apt/lists/* && \
echo 'gem: --no-document' >> /etc/gemrc && \
gem install --file Gemfile
FROM ruby:2.7-slim-buster
ARG DEBIAN_FRONTEND=noninteractive
# Copy the Fluentd configuration file for logging Docker container logs.
COPY fluent.conf /etc/fluent/fluent.conf
COPY entrypoint.sh /entrypoint.sh
COPY --from=builder /usr/local/bundle/ /usr/local/bundle
SHELL ["/bin/bash", "-e", "-o", "pipefail", "-c"]
# hadolint ignore=DL3008
RUN apt-get update && \
apt-get install -y --no-install-recommends libjemalloc2 && \
apt-get clean -y && \
ulimit -n 65536 && \
rm -rf \
/var/cache/debconf/* \
/var/lib/apt/lists/* \
/var/log/* \
/var/tmp/* \
rm -rf /tmp/*
# Expose prometheus metrics.
EXPOSE 80
# Start Fluentd to pick up our config that watches Docker container logs.
CMD ["/entrypoint.sh"]

13
cluster/addons/fluentd-elasticsearch/fluentd-es-image/Gemfile
View File

@ -1,13 +0,0 @@
source 'https://rubygems.org'
gem 'activesupport', '6.1.1'
gem 'elasticsearch-xpack', '7.10.1'
gem 'fluentd', '1.12.0'
gem 'fluent-plugin-concat', '2.4.0'
gem 'fluent-plugin-detect-exceptions', '0.0.13'
gem 'fluent-plugin-elasticsearch', '4.3.3'
gem 'fluent-plugin-kubernetes_metadata_filter', '2.6.0'
gem 'fluent-plugin-multi-format-parser', '1.0.0'
gem 'fluent-plugin-prometheus', '1.8.5'
gem 'fluent-plugin-systemd', '1.0.2'
gem 'oj', '3.11.0'

27
cluster/addons/fluentd-elasticsearch/fluentd-es-image/Makefile
View File

@ -1,27 +0,0 @@
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
.PHONY: build push
PREFIX = quay.io/fluentd_elasticsearch
IMAGE = fluentd
TAG = v3.2.0
build:
docker build --tag ${PREFIX}/${IMAGE}:${TAG} .
docker build --tag ${PREFIX}/${IMAGE}:latest .
push:
docker push ${PREFIX}/${IMAGE}:${TAG}
docker push ${PREFIX}/${IMAGE}:latest

12
cluster/addons/fluentd-elasticsearch/fluentd-es-image/README.md
View File

@ -1,12 +0,0 @@
# Collecting Docker Log Files with Fluentd and Elasticsearch
This directory contains the source files needed to make a Docker image
that collects Docker container log files using [Fluentd][fluentd]
and sends them to an instance of [Elasticsearch][elasticsearch].
This image is designed to be used as part of the [Kubernetes][kubernetes]
cluster bring up process. The image resides at Quay under the name
[quay.io/fluentd_elasticsearch/fluentd][image].
[fluentd]: http://www.fluentd.org/
[elasticsearch]: https://www.elastic.co/products/elasticsearch
[kubernetes]: https://kubernetes.io
[image]: https://quay.io/repository/fluentd_elasticsearch/fluentd?tab=tags

44
cluster/addons/fluentd-elasticsearch/fluentd-es-image/entrypoint.sh
View File

@ -1,44 +0,0 @@
#!/bin/bash
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# These steps must be executed once the host /var and /lib volumes have
# been mounted, and therefore cannot be done in the docker build stage.
# For systems without journald
mkdir -p /var/log/journal
# set ld preload
if dpkg --print-architecture | grep -q amd64;then
export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2
else
export LD_PRELOAD=/usr/lib/aarch64-linux-gnu/libjemalloc.so.2
fi
# For disabling elasticsearch ruby client sniffering feature.
# Because, on k8s, sniffering feature sometimes causes failed to flush buffers error
# due to between service name and ip address glitch.
# And this should be needed for downstream helm chart configurations
# for sniffer_class_name parameter.
SIMPLE_SNIFFER=$( gem contents fluent-plugin-elasticsearch | grep elasticsearch_simple_sniffer.rb )
if [ -n "$SIMPLE_SNIFFER" ] && [ -f "$SIMPLE_SNIFFER" ] ; then
FLUENTD_ARGS="$FLUENTD_ARGS -r $SIMPLE_SNIFFER"
fi
# Use exec to get the signal
# A non-quoted string and add the comment to prevent shellcheck failures on this line.
# See https://github.com/koalaman/shellcheck/wiki/SC2086
# shellcheck disable=SC2086
exec /usr/local/bundle/bin/fluentd $FLUENTD_ARGS

10
cluster/addons/fluentd-elasticsearch/fluentd-es-image/fluent.conf
View File

@ -1,10 +0,0 @@
# This is the root config file, which only includes components of the actual configuration
# Do not collect fluentd's own logs to avoid infinite loops.
<label @FLUENT_LOG>
<match fluent.*>
@type stdout
</match>
</label>
@include /etc/fluent/config.d/*.conf

55
cluster/addons/fluentd-elasticsearch/kibana-deployment.yaml
View File

@ -1,55 +0,0 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: kibana-logging
namespace: logging
labels:
k8s-app: kibana-logging
addonmanager.kubernetes.io/mode: Reconcile
spec:
replicas: 1
selector:
matchLabels:
k8s-app: kibana-logging
template:
metadata:
labels:
k8s-app: kibana-logging
spec:
securityContext:
seccompProfile:
type: RuntimeDefault
containers:
- name: kibana-logging
image: docker.elastic.co/kibana/kibana-oss:7.10.2
resources:
# need more cpu upon initialization, therefore burstable class
limits:
cpu: 1000m
requests:
cpu: 100m
env:
- name: ELASTICSEARCH_HOSTS
value: http://elasticsearch-logging:9200
- name: SERVER_NAME
value: kibana-logging
- name: SERVER_BASEPATH
value: /api/v1/namespaces/logging/services/kibana-logging/proxy
- name: SERVER_REWRITEBASEPATH
value: "false"
ports:
- containerPort: 5601
name: ui
protocol: TCP
livenessProbe:
httpGet:
path: /api/status
port: ui
initialDelaySeconds: 5
timeoutSeconds: 10
readinessProbe:
httpGet:
path: /api/status
port: ui
initialDelaySeconds: 5
timeoutSeconds: 10

17
cluster/addons/fluentd-elasticsearch/kibana-service.yaml
View File

@ -1,17 +0,0 @@
apiVersion: v1
kind: Service
metadata:
name: kibana-logging
namespace: logging
labels:
k8s-app: kibana-logging
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/name: "Kibana"
spec:
ports:
- port: 5601
protocol: TCP
targetPort: ui
selector:
k8s-app: kibana-logging

15
cluster/addons/fluentd-elasticsearch/podsecuritypolicies/es-psp-binding.yaml
View File

@ -1,15 +0,0 @@
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: gce:podsecuritypolicy:elasticsearch-logging
namespace: kube-system
labels:
addonmanager.kubernetes.io/mode: Reconcile
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: gce:podsecuritypolicy:privileged
subjects:
- kind: ServiceAccount
name: elasticsearch-logging
namespace: kube-system

2
cluster/gce/config-default.sh
View File

@ -244,7 +244,7 @@ fi
# Optional: Enable node logging.
export ENABLE_NODE_LOGGING="${KUBE_ENABLE_NODE_LOGGING:-true}"
export LOGGING_DESTINATION="${KUBE_LOGGING_DESTINATION:-gcp}" # options: elasticsearch, gcp
export LOGGING_DESTINATION="${KUBE_LOGGING_DESTINATION:-gcp}" # options: gcp
# Optional: When set to true, Elasticsearch and Kibana will be setup as part of the cluster bring up.
export ENABLE_CLUSTER_LOGGING="${KUBE_ENABLE_CLUSTER_LOGGING:-true}"

2
cluster/gce/config-test.sh
View File

@ -300,7 +300,7 @@ fi
# Optional: Enable node logging.
export ENABLE_NODE_LOGGING=${KUBE_ENABLE_NODE_LOGGING:-true}
export LOGGING_DESTINATION=${KUBE_LOGGING_DESTINATION:-gcp} # options: elasticsearch, gcp
export LOGGING_DESTINATION=${KUBE_LOGGING_DESTINATION:-gcp} # options: gcp
# Optional: When set to true, Elasticsearch and Kibana will be setup as part of the cluster bring up.
export ENABLE_CLUSTER_LOGGING=${KUBE_ENABLE_CLUSTER_LOGGING:-true}

6
cluster/gce/gci/configure-helper.sh
View File

@ -2816,9 +2816,9 @@ EOF
if [[ "${ENABLE_NODE_LOGGING:-}" == "true" ]] && \
[[ "${LOGGING_DESTINATION:-}" == "elasticsearch" ]] && \
[[ "${ENABLE_CLUSTER_LOGGING:-}" == "true" ]]; then
setup-addon-manifests "addons" "fluentd-elasticsearch"
local -r fluentd_es_configmap_yaml="${dst_dir}/fluentd-elasticsearch/fluentd-es-configmap.yaml"
update-container-runtime ${fluentd_es_configmap_yaml}
echo "fluentd-elasticsearch addon is no longer included here. Terminate cluster initialization."
echo "The addon can be installed from https://github.com/kubernetes-sigs/instrumentation-addons"
exit 1
fi
if [[ "${ENABLE_NODE_LOGGING:-}" == "true" ]] && \
[[ "${LOGGING_DESTINATION:-}" == "gcp" ]]; then