我有一个本地kubernetes集群,在其中使用预配置的elasticsearch镜像(fluent / fluentd-kubernetes-daemonset:elasticsearch)添加了Fluentd守护程序集。 this article的步骤2。我还有一个在云中运行的弹性集群。您可以将一些env变量传递给fluentd-elasticsearch图像进行配置。它看起来非常简单,但是在运行流畅的Pod时,我不断收到错误消息:
"Fluent::ElasticsearchOutput::ConnectionFailure" error="Can not reach Elasticsearch cluster ({:host=>\"fa0acce34bf64db9bc9e46f98743c185.westeurope.azure.elastic-cloud.com\", :port=>9243, :scheme=>\"https\", :user=>\"username\", :password=>\"obfuscated\"})!" plugin_id="out_es"
当我尝试从吊舱内部到达弹性簇时
# wget https://fa0acce34bf64db9bc9e46f98743c185.westeurope.azure.elastic-cloud.com:9243/
我得到401的未授权(因为我没有在此处提交用户/密码),但这至少表明该地址可以访问。
为什么无法连接? 我已经将FLUENT_ELASTICSEARCH_SSL_VERSION设置为'TLSv1_2',我看到这可以解决其他问题。
守护程序配置:
kind: DaemonSet
metadata:
name: fluentd
namespace: kube-logging
labels:
app: fluentd
k8s-app: fluentd-logging
version: v1
kubernetes.io/cluster-service: "true"
spec:
selector:
matchLabels:
app: fluentd
template:
metadata:
labels:
app: fluentd
k8s-app: fluentd-logging
version: v1
kubernetes.io/cluster-service: "true"
spec:
serviceAccount: fluentd
serviceAccountName: fluentd
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
containers:
- name: fluentd
image: fluent/fluentd-kubernetes-daemonset:elasticsearch
env:
- name: FLUENT_ELASTICSEARCH_HOST
value: "fa0acce34bf64db9bc9e46f98743c185.westeurope.azure.elastic-cloud.com"
- name: FLUENT_ELASTICSEARCH_PORT
value: "9243"
- name: FLUENT_ELASTICSEARCH_SCHEME
value: "https"
- name: FLUENT_UID
value: "0"
- name: FLUENT_ELASTICSEARCH_SSL_VERIFY
value: "false"
- name: FLUENT_ELASTICSEARCH_SSL_VERSION
value: "TLSv1_2"
- name: FLUENT_ELASTICSEARCH_USER
value: "<user>"
- name: FLUENT_ELASTICSEARCH_PASSWORD
value: "<password>"
resources:
limits:
memory: 100Mi
requests:
cpu: 100m
memory: 100Mi
volumeMounts:
- name: varlog
mountPath: /var/log
- name: varlibdockercontainers
mountPath: /var/lib/docker/containers
readOnly: true
terminationGracePeriodSeconds: 30
volumes:
- name: varlog
hostPath:
path: /var/log
- name: varlibdockercontainers
hostPath:
path: /var/lib/docker/containers
答案 0 :(得分:1)
对于遇到此问题的其他人:
我正在跟踪一个使用“图像:fluent / fluentd-kubernetes-daemonset:elasticsearch”图像的教程。当您检查他们的DockerHub(https://hub.docker.com/r/fluent/fluentd-kubernetes-daemonset)时,您会发现:elaticsearch标签已经使用了一年,并且可能已过时。
我将DaemonSet的图像更改为一个更新且更稳定的标签“ fluent / fluentd-kubernetes-daemonset:v1-debian-elasticsearch”,并开始运行。