mrack introduction

mrack is a provisioning library for CI and local multi-host testing supporting multiple provisioning providers e.g. OpenStack, libvirt, containers, Beaker).

But in comparison to multi-cloud libraries, the aim is to be able to describe host from application perspective. E.g.:

network: IPv4
hosts:
- name: master.testdomain.test
  role: master
  group: ipaserver
  os: fedora-31
- name: client.testdomain.test
  role: client
  group: ipaclient
  os: fedora-30

This is then combined with provisioning configuration where each provider has defined meaning for role, group, os params which e.g. translates to flavors, images, …

provider: openstack  # default provider
openstack:
  images:
    fedora-30: Fedora-Cloud-Base-30-compose-latest
    fedora-31: Fedora-Cloud-Base-31
  flavors:
    ipaserver: ci.m1.medium
    ipaclient: ci.m1.micro
  networks:
    IPv4: net_ci_4
    IPv6: net_ipv6_only
    dual: net_cci_4_6
  keypair: ipa_key
beaker:
  distros:
    fedora-30: FEDORA-30%
    fodora-31: FEDORA-31%

So then user can quickly change provisioning location just by changing provider name without a need to redefine the provider/cloud specifics. This is especially useful for a lot of jobs sharing the same app specific provisioner configuration.

Contents:

Indices and tables