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Codeship Basic uses Ubuntu 14.04 (Trusty Tahr) on our test machines. To virtualize the test machines we use Linux Containers.
Every build gets a new completely clean virtual machine. Changes done to the filesystem during the build are stored on a temporary filesystem in memory so your code never touches a harddrive and is completely removed as soon as we shut down the virtual machine.
All Codeship Pro builds run on dedicated, single tenant build machines, on individual EC2 instances, in the US-East-1 region.
The Codeship Pro build environment is configurable depending on plan and available in the following configurations:
Small: 2 CPUs, 3.75gb RAM Medium: 4 CPUs, 7.5gb RAM Big: 8 CPUs, 15gb RAM Huge: 16 CPUs, 30gb RAM Massive: 32 CPUs, 60gb RAM
On Codeship Pro, builds run on infrastructure equipped with version 17.05 of Docker.
All incoming ports except for ssh port 22 are rejected by default. Outgoing port 25 (SMTP) is closed by default so Codeship can’t be used for spamming.
All builds on both Codeship Basic and Codeship Pro have 10gb of disk space allocation for the build environment.
On Codeship Basic, a build can up for up to 3 hours, although builds will time out if there is no log activity for 10 minutes.
On Codeship Pro, a build can up for up to 2 hours, although builds will time out if there is no log activity for 15 minutes.