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How to use logrotate

logrotate is triggerd by cron /etc/cron.daily/logrotate
Create a log rotation conf file in /etc/logrotate.d. All the files in this directory is included in /etc/logrotate.conf
Let's add /etc/logrotate.d/collector for example. The contents is as follows:

/var/log/collector/log/*.log {
	daily
	missingok
	rotate 52

Docker registry with basic auth and SSL certificate

Docker registry does not have authentication nor certificate mechanism so in case you have docker registry on the internet, you need something that support those in front of the registry. You can find examples using Nginx for it on the web and this is yet another one.

The architecture

Client talks to Nginx. Nginx proxies the request to the docker registry. The nginx is on the host OS - not as a container.

+-----------+     +--------------------------------------------------------+
|           |     |  Server                              Docker container  |

#Install

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer

If you see this error,

$ sudo add-apt-repository ppa:webupd8team/java
sudo: add-apt-repository: command not found

	require 'webrick'
	server = WEBrick::HTTPServer.new :Port => 1234
	server.mount "/", WEBrick::HTTPServlet::FileHandler, './'
	trap('INT') { server.stop }
	server.start

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console