Blogs

In September I purchased a Lop rabbit that was only two months old 🐰 and by taking good care of it, it made me feel that nothing is more important than life, especially when the rabbit was sick, my wife and I went through various information channels to find out how to treat rabbit diseases. A small life may cost more than 200 RMB at the mall, but the joy it brings us should not be measured in money. Life in nature is as small as an insect ant 🐜 and as large as a predatory lion 🦁️, they are all made up of one of the most basic units, which is the cell. Why a bunch of cells come together to produce life, and a life with free consciousness, is perhaps the complexity of the entire universe plays a role, where the system evolves over time under the action of a simple set of rules, eventually presenting a highly complex structure of living organisms. For human beings, we have a brain that is incomparable to other beings, and it is the ability to learn and create that makes us stand on this blue planet, which is also a gift of life to us humans, and we need to be in awe of every little life that grows on Earth, because every cell that grows in these beings uses the same The laws of nature. Each living thing is a different branch of the same tree of life, yet they all have the same roots. The fear of life allows us to understand the true meaning of life. ...

Today I upgraded my production kubernetes cluster from v1.24.4 to v1.25.0 and encountered a problem during the upgrade. Because the PodSecurityPolicy api was removed from kube apiserver, and by instead of Pod Security Admission (PSA), so I needed to merge PodSecurityPolicy into PSA. At this time I did some research on PSA. PSA has been defined as a stable interface in v1.25.0 and the PodSecurity controller is enabled by default. the PSA controller forces pods to run in an environment with specific permissions by creating permissions rules in namespace, and all pods under that namespace will have access to the host environment restricted to that permission. ...

Ethereum mainnet merge In August this year, the ETH goerli test network was merged 2.0, I also participated in the test network merge, the whole process was successful, I used lighthouse as the ETH Consensus layer, geth as the Execution layer, the current test network running validator node status is good. In the coming September, the main ETH network will be merged with 2.0, and I also ran the Consensue Layer and Execution Layer separately, so I hope this major merger will be completed successfully. ...

This is the architecture of the content management platform I currently use, the front end of the two google comput engine for connecting to the global Internet and hosting static sites, the back-end cluster all running on my owner hosted ARM64 system platform, the Cloudflared tunnel is running inside of kubernetes cluster, when the user requests invisibleart, the request will be sent to the tunnel through the cloudflare edge network, then cloudflared will send the request to the target address wordpress engine, the backend database is used vitess mysql cluster, the early use of tidb I found that compatibility problems with wordpress, and finally I decided to use vitess, in the backup, expansion, and disaster recovery, vitess is still very reliable. ...