Iron.io Blog: Docker in Production — What We’ve Learned Launching Over 300 Million Containers

Earlier this year, we made a decision to run every task on IronWorker inside its own Docker container. Since then, we’ve run over 300,000,000 programs inside of their own private Docker containers on cloud infrastructure. via Iron.io Blog: Docker in Production — What We’ve Learned Launching Over 300 Million Containers.

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MySQL Master-Master Replication, Heartbeat, DRBD, Apache, PHP, Varnish MegaHOWTO | IO Digital Sec

I created this HOWTO while building a new development environment today. The intention is to take a single Apache2/Varnish/MySQL environment and scale it to two servers, with one effectively a “hot-standby” – increase redundancy and continuity whilst maintaining current performance. This HOWTO is based on Linux Debian-76-wheezy-64-minimal 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u3 x86_64 via MySQL […]

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