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Windows behaves as if the left shift key is stuck

Windows behaves as if the left shift key is stuck

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Valid file extensions for ansible inventory

Valid file extensions for ansible inventory

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vsphere esxi 使用

vsphere esxi 使用

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Answer: Kubernetes Pod stuck in CrashLoopBackOff

Answer: Kubernetes Pod stuck in CrashLoopBackOff

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docker 重启失败

docker 重启失败

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/etc/security/limits.

/etc/security/limits.

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bash 函数 return 1 是表示执行失败

bash 函数 return 1 是表示执行失败

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quote in ssh bash -c

quote in ssh bash -c

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Why do the md5 hashes of two tarballs of the same file differ?

Why do the md5 hashes of two tarballs of the same file differ?

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kubectl -ojsonpath

kubectl -ojsonpath

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解决 Kubernetes 中 Kubelet 组件报 failed to get cgroup 错误

解决 Kubernetes 中 Kubelet 组件报 failed to get cgroup 错误

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Answer: how to run kubelet as docker container

Answer: how to run kubelet as docker container

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the associated storage asset still exists when the pv is deleted

the associated storage asset still exists when the pv is deleted

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Galera Cluster Recovery

Galera Cluster Recovery

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Answer: How to see docker image contents

Answer: How to see docker image contents

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windows hosts file do not support inline comments

windows hosts file do not support inline comments

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Answer: What is the difference between the random.choices() and random.sample() functions?

Answer: What is the difference between the random.choices() and random.sample() functions?

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Answer: Set specific DNS server using dns.resolver (pythondns)

Answer: Set specific DNS server using dns.resolver (pythondns)

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Answer: How to copy Docker images from one host to another without using a repository

Answer: How to copy Docker images from one host to another without using a repository

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I was misguided by the network policy of the office when I try to determine whether the target port of target server is open

I was misguided by the network policy of the office when I try to determine whether the target port of target server is open

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Answer: Grep in MySQL CLI interpretter

Answer: Grep in MySQL CLI interpretter

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add worker label to worker node in k8s

add worker label to worker node in k8s

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忘了添加允许外网访问的 firewall rule 导致的问题

忘了添加允许外网访问的 firewall rule 导致的问题

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beawre the place where you put ssh include directive after

beawre the place where you put ssh include directive after

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ansible lineinfile 中 regexp 如果匹配多行,只会修改其中一行

ansible lineinfile 中 regexp 如果匹配多行,只会修改其中一行

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ssh login to the wrong machine

ssh login to the wrong machine

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ansible create empty file if it does not exist

ansible create empty file if it does not exist

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auto start cron in wsl2

auto start cron in wsl2

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the value of ansible_hostname is not fixed after the fact gathering

the value of ansible_hostname is not fixed after the fact gathering

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ansible cannot connection after change ip of target

ansible cannot connection after change ip of target

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ansible only use one configuration file, not combine all the configuration files

ansible only use one configuration file, not combine all the configuration files

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ssh configuration in windows

ssh configuration in windows

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Answer: docker find container by pid of inside process

Answer: docker find container by pid of inside process

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rsync continue a broken scp command

rsync continue a broken scp command

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recover from a interrupted yum upgrade

recover from a interrupted yum upgrade

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hyper -v 导致 windows 10 分辨率降级

hyper -v 导致 windows 10 分辨率降级

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run ping command as normal user in wsl2

run ping command as normal user in wsl2

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disable CoW on vm images

disable CoW on vm images

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笔记本进启动菜单难

笔记本进启动菜单难

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从国内访问返回503错误

从国内访问返回503错误

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错误地配置了 gcp 的防火墙规则

错误地配置了 gcp 的防火墙规则

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1 min read
shell Process substitution and pipe

shell Process substitution and pipe

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relational expression and /regular expression/ in awk

relational expression and /regular expression/ in awk

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cmd1 && cmd2 || cmd3 is not the same as if cmd1; then cmd2; else cmd3;fi

cmd1 && cmd2 || cmd3 is not the same as if cmd1; then cmd2; else cmd3;fi

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difference between rm and unlink

difference between rm and unlink

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Answer: Ansible fileglob: unable to find … in expected paths

Answer: Ansible fileglob: unable to find … in expected paths

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Prevent harmful Linux updates with versionlock

Prevent harmful Linux updates with versionlock

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Answer: Run only one task and handler from ansible playbook

Answer: Run only one task and handler from ansible playbook

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Ctrl-v I # cannot comment out multiple lines

Ctrl-v I # cannot comment out multiple lines

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failed to switch container runtime to containerd

failed to switch container runtime to containerd

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apt cacher for faster downloading rpm/deb pkgs

apt cacher for faster downloading rpm/deb pkgs

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a wrong indent in yaml make comment invalid

a wrong indent in yaml make comment invalid

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nodename and hostname in ansible

nodename and hostname in ansible

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small error related to quote and indent in ansible playbook loop

small error related to quote and indent in ansible playbook loop

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yum --disableexclude

yum --disableexclude

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ssh can not resolve hostname in included config file

ssh can not resolve hostname in included config file

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fix problems after rename vagrant project

fix problems after rename vagrant project

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open search result in new tab

open search result in new tab

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vagrant cannot create a custom named network for virtualbox

vagrant cannot create a custom named network for virtualbox

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docker: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers).

docker: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers).

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