Akamai-Bot


I received good feedbacks since shared the SSSG-Ninja in Akamai community, so I decided to share another useful tool that I ever built before. Akamai-Bot is a Hubot based automation bot that allows users to perform some Akamai daily tasks simply by chatting. Here are some examples. If you are interested, here is the git … Continue reading Akamai-Bot

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Error response from daemon: Get https://index.docker.io/v1/…: x509: certificate signed by unknown authority


Error response from daemon: Get https://index.docker.io/v1/...: x509: certificate signed by unknown authority You have probably seen similar errors as above when trying to access dockerhub registry behind a corp proxy. I have the same issue here. And I think the issue may be caused by two reasons: 1) index.docker.io now is redirected to registry.hub.docker.com 2) Your … Continue reading Error response from daemon: Get https://index.docker.io/v1/…: x509: certificate signed by unknown authority

Understanding Kubernetes


Continue with my previous post 'Docker Infrastructure V1.1', I want to share some my understanding of how Kubernetes works. Logically, there are 3 basic components in Kubernetes. Pod, Relication-controller and Service: Pod: it is the smallest unit in Kubernetes. It contains one or more containers. Replication-controller: It controls and also guarantees the instance numbers of … Continue reading Understanding Kubernetes

Understanding docker directory structure


I have docker installed on my Fedora box. Here I try to understand the structure of its directories. [root@mylab docker]# docker version Client version: 1.5.0 Client API version: 1.17 Go version (client): go1.3.3 Git commit (client): a8a31ef/1.5.0 OS/Arch (client): linux/amd64 Server version: 1.5.0 Server API version: 1.17 Go version (server): go1.3.3 Git commit (server): a8a31ef/1.5.0 … Continue reading Understanding docker directory structure

Cannot click vSphere Client Security Warning dialog buttons


I met the same issue described in this VMware KB, unfortunately none of the solutions worked for me. Symptoms When logging in with the vSphere Client you see a Security Warning dialog with a message similar to:An untrusted SSL certificate is installed on "<hostname>" and secure communication cannot be guaranteed. Depending on your security policy, this issue might not … Continue reading Cannot click vSphere Client Security Warning dialog buttons