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TeamCity is reporting "Unmet requirements: docker.server.version exists"
How to do math in Bash
Monitoring, ElasticSearch and Grafana
Zero Down Time Deployment in Kubernetes
brew install reported "Failed to connect to 127.0.0.1 port 1087"
How to resolve "no route to host" in Kubernetes
Helm - zsh: no matches found: imagePullSecrets[0].name=regcred
Helm - Pull image from private repository
How to install frp client in Kubernetes
How to enable mutual authentication in Jetty server
在国内如何拉取 quay.io 的镜像
How to set registry to NPM and Yarn
How to resolve the issue "DH key too small"
Compare HTTP/1.1, HTTP/2 and HTTP/2 Server Push
创建 Kubernetes Cron 定时任务
Docker/Kubernetes 国内镜像
下载 Everything
下载 Windows 10 镜像
Shall I avoid Exclamation Mark(!) in If-Statement in Java
How to force a program use HTTP proxy in Linux
格式化字符串攻击（Format String Attack
函数注入（Function Injection）
Next.js 如何生成 robots.txt 和 sitemap.xml
Generate robots.txt and sitemap.xml in Next.js
git rev-parse HEAD alternative command in JGit
Java Stream API 解析 - 1
Java Stream API 解析 - 2
How to serve one jersey resource or jetty servlet for different path
How to set registry for yarn
HTTP POST
How to inspect HTTP/2 in Wireshark
如何用 Wireshark 监听 HTTP/2 流量
在 macOS 上如何通过 Kubernetes 安装 wiki.js
How to install wiki.js via Kubuernetes in macOS
Nginx Permission denied while connecting to upstream 解决办法
Java 中的软引用(SoftReference)、弱引用(WeakReference)和虚引用(PhantomReference) 解析和实际用例
Remote Debugging for Java Application
How to set environment variable to a Docker container
在群晖上搭建 Nexus 私有仓库
How to split string into array in Bash
使用 OWASP ZAP 扫描网页/API漏洞
Vagrant CentOS 国内镜像
Why we need to disable TRACE method and how to disable TRACE in Embedded Jetty
How to run single test in egg.js
Enable TeamCity support for egg.js project
Create TCP Tunnel/Port Forwarding by SSH
Pull Docker Images and Re-Tag
Expose RDP service by SSH port forwarding
Enable OWASP ZAP mTLS/Client Certificate
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How to resolve "no route to host" in Kubernetes
I ran into trouble today, without any reason, my apps in Microk8s cluster cannot resolve domain name
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java.lang.RuntimeException: java.net.UnknownHostException: xxx.example.com: Temporary failure in name resolution
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And then I go to check the coredns log and see below log. 10.152.183.1:443 is the apiserver address
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E0528 13:48:20.680081 1 reflector.go:125] pkg/mod/k8s.io/[email protected]/tools/cache/reflector.go:98: Failed to list *v1.Service: Get https://10.152.183.1:443/api/v1/services?limit=500&resourceVersion=0: dial tcp 10.152.183.1:443: connect: no route to host
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I don't know what the root cause excactly is, but here is the solution
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# For Kubernetes
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systemctl stop kubelet
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systemctl stop docker
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iptables --flush
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iptables -tnat --flush
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systemctl start kubelet
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systemctl start docker
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# For Microk8s
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microk8s stop
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systemctl stop docker
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iptables --flush
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iptables -tnat --flush
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systemctl start docker
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microk8s start
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