
Hello, I'm Yoshida, an engineer. Last time, I wrote an article about migrating to HTTP/2 (OpsWorks), and this time it will be a sequel. Last time, I told you about building a simple environment on the Chef12 stack using AWS OpsWorks to migrate to HTTP/2. ...

Hello, this is Yoshida, who is the lead engineer of the team activation service "Goalous". In this article, we will talk about how Goalous migrated from HTTP/1.1 to HTTP/2 and how it actually migrated. Until last month, we had spent more than a month and a half making large-scale performance improvements to the entire service. ...

Hello, I'm flat. The other day, on August 24th, we held our fourth study session for external parties, so I would like to report on the situation. This time, I, Akagawa, an engineer at our company like Hiragata, delivered AWS-related topics. This is the fourth study session, and the excitement has increased, and our representative, Nakamura, bought a greeting himself and came out. I am very happy that many people participated in this event as well. This time, -...

Hello. This is Komiya. As I automate various things in Chef, I think there will be cases where I want to use values or variables that have been changed in the middle. There will come a time when you want to solve a strange phenomenon that does not become a power of power, such as the first time it doesn't work but the second time it works. In such a case, if you can get a price with ohai, you have to use it and make your own ohai plugin、...

Hello. It's been a long time. This is the developer's flat shape. All the engineers who visited this blog. And people other than engineers. Thank you very much. First of all, there is no code or command line in this article. The content I am sending this time can help you build and operate a truly scalable environment. ...

Hello. This is Komiya from OPS. I asked you to install the redis source and CHEF-SOLO, so I will record it. ★ Requirements Please use 2.8.4 for the version. (Latest source as of 2014/1) ★ The following work ・Check the version that enters at rpm (*Check with yum on the server in the same environment) redis.x86\_64 0:2.4.10-1.el6...

Hello. This is Komiya from OPS. This is how to calculate the value to be put in RPS\_cpus according to the number of CPU cores. There is a request to distribute network interrupt processing across multiple cores. I relied on people who could do it and worked hard so far. \[shell\]# core=1 # echo "obase=16; ibase=10; $(( 2 \*\* ${core})) -1" |...

Hello. This is Komiya. This is the last time. Here are some places to test the recipes I introduced last time. Serverspec. I wrote in the link below why Serverspec is good, but I think the following points are good. ・It's not a Chef test tool, it's an external tool, so there are no dependencies (you can also use puppet)...

Thank you. This is Komiya. Continuing from the previous article, we will introduce the recipe for the procedure of munin, zabbix. That's all for this article. At the end of the article we will describe how to apply the recipe. ・Munin's recipe ''' filename = "munin-node-rpm.tar" cookbook_file "/tmp/#{filename}" do source "rpms/#{filename}"...

Thank you. This is Komiya. Continuing from the previous article, I will write about dbserver recipes. The only thing I have to do is test with munin, zabbx and serverspec. It's a little patience already. Since it is a fixed version installation like the web, external recipes should not be used in the direction of basically using it ・Install mysql and enable startup and auto-start \[shell\]# cd...

Hello. This is Komiya from the platform. Continuing from last time, we will continue to make recipes for existing procedures. I think there will be about three more times, so please be patient. This time it will be a recipe for a web server. I don't do anything special and I think it's a normal web server, but I'll write down what I'm doing、...

Hello. This is Komiya from the platform. Continuing from the previous article, I apologize for the Chef article. data\_bags to prepare user management. For the time being, I wrote here before, but I think it would be better if the relevant information was gathered, so I will partially repost it. data\_bags is something that can be managed such as data search with LDAP-like functions. ...