![如何更改cilium DeamonSet初始容器kube api地址](https://linux22.com/image/790865/%E5%A6%82%E4%BD%95%E6%9B%B4%E6%94%B9cilium%20DeamonSet%E5%88%9D%E5%A7%8B%E5%AE%B9%E5%99%A8kube%20api%E5%9C%B0%E5%9D%80.png)
我使用 cilium 1.14.3 作为 kuberenetes v1.28.3 cni 组件,这是我安装 cilium 的方式:
helm install cilium cilium/cilium --version 1.14.3 \
--namespace kube-system \
--set global.nodeinit.enabled=true \
--set global.kubeProxyReplacement=partial \
--set global.hostServices.enabled=false \
--set global.externalIPs.enabled=true \
--set global.nodePort.enabled=true \
--set global.hostPort.enabled=true \
--set global.pullPolicy=IfNotPresent \
--set config.ipam=kubernetes \
--set global.hubble.enabled=true \
--set global.hubble.relay.enabled=true \
--set global.hubble.ui.enabled=true \
--set global.hubble.metrics.enabled="{dns,drop,tcp,flow,port-distribution,icmp,http}"
现在我想更改 kubernetes api 服务器地址,我已经编辑了 configmap cilium-config 并添加以下内容:
k8s-service-host: '172.29.217.209'
k8s-service-port: '6443'
k8s-api-server: 'https://172.29.217.209:6443'
这个配置对 cilium-operator 是有效的,但是我发现 cilium DeamonSet 仍然没有使用新的 api server 地址。于是我在 cilium DeamonSet 中添加了如下配置:
initContainers:
- name: config
image: >-
quay.io/cilium/cilium:v1.14.3@sha256:e5ca22526e01469f8d10c14e2339a82a13ad70d9a359b879024715540eef4ace
command:
- cilium
- build-config
env:
- name: K8S_API_SERVER
value: 'https://172.29.217.209:6443'
- name: K8S_NODE_NAME
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: spec.nodeName
- name: CILIUM_K8S_NAMESPACE
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.namespace
resources: {}
volumeMounts:
- name: tmp
mountPath: /tmp
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: FallbackToLogsOnError
imagePullPolicy: IfNotPresent
似乎初始容器没有读取 api 服务器地址。我是不是漏掉了什么?我应该怎么做才能更改 cilium DeamonSet 初始容器的 kube api 服务器地址?我从以下网址找到了配置https://docs.cilium.io/en/v1.12/gettingstarted/kubeproxy-free/#kubeproxy-free我认为它适用于 1.14.3。
这是来自初始容器的错误日志,显示了为什么我需要更改 api 服务器地址:
level=info msg=Invoked duration="810.146µs" function="cmd.glob..func36 (build-config.go:32)" subsys=hive
level=info msg=Starting subsys=hive
level=info msg="Establishing connection to apiserver" host="https://10.96.0.1:443" subsys=k8s-client
level=info msg="Establishing connection to apiserver" host="https://10.96.0.1:443" subsys=k8s-client
level=error msg="Unable to contact k8s api-server" error="Get \"https://10.96.0.1:443/api/v1/namespaces/kube-system\": dial tcp 10.96.0.1:443: i/o timeout" ipAddr="https://10.96.0.1:443" subsys=k8s-client
level=error msg="Start hook failed" error="Get \"https://10.96.0.1:443/api/v1/namespaces/kube-system\": dial tcp 10.96.0.1:443: i/o timeout" function="client.(*compositeClientset).onStart" subsys=hive
level=info msg=Stopping subsys=hive
Error: failed to start: Get "https://10.96.0.1:443/api/v1/namespaces/kube-system": dial tcp 10.96.0.1:443: i/o timeout
Usage:
cilium build-config --node-name $K8S_NODE_NAME [flags]
Flags:
--allow-config-keys strings List of configuration keys that are allowed to be overridden (e.g. set from not the first source. Takes precedence over deny-config-keys
--deny-config-keys strings List of configuration keys that are not allowed to be overridden (e.g. set from not the first source. If allow-config-keys is set, this field is ignored
--dest string Destination directory to write the fully-resolved configuration. (default "/tmp/cilium/config-map")
--enable-k8s Enable the k8s clientset (default true)
--enable-k8s-api-discovery Enable discovery of Kubernetes API groups and resources with the discovery API
-h, --help help for build-config
--k8s-api-server string Kubernetes API server URL
--k8s-client-burst int Burst value allowed for the K8s client
--k8s-client-qps float32 Queries per second limit for the K8s client
--k8s-heartbeat-timeout duration Configures the timeout for api-server heartbeat, set to 0 to disable (default 30s)
--k8s-kubeconfig-path string Absolute path of the kubernetes kubeconfig file
答案1
Dolphin。由于您使用的是 Helm,因此建议根据文档执行命令(请注意,我指的是 1.14.4 版本)。对 Cilium 运行以下 Helm 升级命令:
helm upgrade cilium cilium/cilium --version 1.14.4 \
--namespace kube-system \
--set k8sServiceHost=YOUR_API_IP \
--set k8sServicePort=6443
您可以在文档中找到所有相关的键这里,并且不再有 k8s-api-server 键。
执行此操作后,您可以使用以下命令检查 Cilium DaemonSet:
kubectl -n kube-system describe ds cilium
执行此操作后,您应该在输出中观察到以下内容:
Init Containers:
config:
Image: quay.io/cilium/cilium:v1.14.4@sha256:4981767b787c69126e190e33aee93d5a076639083c21f0e7c29596a519c64a2e
Port: <none>
Host Port: <none>
Command:
cilium
build-config
Environment:
K8S_NODE_NAME: (v1:spec.nodeName)
CILIUM_K8S_NAMESPACE: (v1:metadata.namespace)
KUBERNETES_SERVICE_HOST: YOUR_API_IP
KUBERNETES_SERVICE_PORT: 6443
请注意,您应该将 YOUR_API_IP 替换为您特定设置中的实际 IP 地址。