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# ERP Test Harness
This ansible playbook can be used to automate the ERP testing on a set of given
hosts.
## Roles
ERP testing is as easy as 1 2 3:
1. Get a build
2. Load a build on a host (provision)
3. Install prerequisites on a host and run the tests autonomously
The ansible run is idempotent; each time it is run, if the tests are already
running on a host it will not do anything. If the tests are not running on a
host, it will start them.
### Find ERP build
The `erp_get_build` role will ask jenkins for the latest build and then
download the build locally. This role is required to be run before the
subsequent roles.
### Provision Host
Depending on which lab a host is in (defined by their host group in `hosts`), a
lab-specific role will be run to provision a host.
The `erp_provision_austin_host` is used to provision hosts in the US Austin
lab.
The `erp_provision_cambridge_host` is used to provision hosts in the UK
Cambridge lab.
### Run ERP Test Suite
The `erp_run_test_suite` will ssh into the given host, install test-definitions
prerequisites, clone test-definitions, run each test plan that is used for ERP
testing, and post the results to https://qa-reports.linaro.org/ using the given
latest build number (discovered in `erp_get_build`).
## Usage
See the `Makefile` for example usecases.
Note that 'hosts' and 'group_vars/all' files are encrypted using ansible vault.
To use, the vault password will have to be available in ~/.vault_pass_erp.txt.
Once set, use `ansible-vault edit` to view and modify.
See `hosts.dist` and `group_vars/erp_all.dist` for examples of inventory
definitions.
To run against a given host or host group, run `ansible-playbook -l
<hostname|hostgroup> main.yml`. If -l (limit) is not used, ansible will attempt
to run against every host defined in `hosts`.
## Examples
Provision hosts in the 'erp-drue' hostgroup:
make run-drue
Run tests against already-provisioned hosts in the 'erp-drue' hostgroup, but
set build number explicitly:
make run-drue BUILD_NUM=450
Provision and run against hosts using the stable build number 321:
make provision-drue BUILD_ENV=staging BUILD_NUM=321
make run-drue BUILD_ENV=staging BUILD_NUM=321
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