vSphere users ask, “How do I configure my BOSH director so that it can communicate with my vCenter but the director’s deployed VMs can’t?” One technique is to use a multi-homed BOSH director combined with the BOSH Networking Release (a BOSH release which enables customization of the VM’s routing table, allowing more routes than the default gateway). Network Diagram The following is a network diagram of our deployment. We want to protect the assets at the top (in blue): the vCenter server and its associated ESXi servers. These machines are particularly sensitive as they control hundreds of VMs. ...

[2016-04-06: This Blog Post is out-of-date; Please refer to the official Concourse documentation for instructions how to install a Concourse server] Continuous Integration (CI) is often used in conjunction with test-driven development (TDD); however, CI servers often bring their own set of challenges: they are usually “snowflakes”, uniquely configured machines that are difficult to upgrade, re-configure, or re-install. [snowflakes] In this blog post, we describe deploying a publicly-accessible, lean (1GB RAM, 1 vCPU, 15GB disk) Concourse CI server using a 350-line manifest. Upgrades/re-configurations/re-installs are as simple as editing a file and typing one command (bosh-init). ...