(backend variables), variables that control flow through `main.pm` (test variables) and variables that
are specified when ISO is posted into OpenQA (run variables).
Backend variables
-----------------
These variables control settings of underlying virtual machine where tests runs on. Some of them (`ARCH`, `QEMURAM`, ...) should be set per machine, others (`HDD_$i`, `HDDMODEL`, ...) should be set per test and some of them (`KEEPHDDS`, `MAKETESTSNAPSHOTS`, `SKIPTO`) should be set only during development and debugging.
| `ARCH` | `x86_64`, `i686`, `aarch64`, ... | depends on tested medium | architecture of VM |
| `BIOS` | filename | `ovmf-x86_64-ms.bin` for `x86_64` UEFI, not set otherwise | set different BIOS |
| `BOOTFROM` | characters (see man qemu, `-boot order=` option) | not set | boot from different medium than CD |
| `CDMODEL` | see `qemu-kvm -device help` | not set/Qemu default | type of device for CD |
| `HDDMODEL` | see `qemu-kvm -device help` | `virtio-blk` | type of device for HDD |
| `HDDSIZEGB` | integer | `10` | size (in GBs) for disks that are created automatically |
| `HDD_$i` (`HDD_1, HDD_2`, ...) | filename | not set | attach additional HDD to VM |
| `ISO` | filename | not set | attach CD drive with ISO inserted |
| `ISO_$i` (`ISO_1`, `ISO_2`, ...) | filename | not set | additional CD drives to by attached |
| `KEEPHDDS` | boolean | `false`/not set | don't delete HDD after test finishes |
| `LAPTOP` | boolean or filename | `false`/not set | if `true`, Dell E6330 DMI is used; if set to filename, that file is used for DMI |
| `MAKETESTSNAPSHOTS` | boolean | `false`/not set | save snapshot for each test |
| `NOVIDEO` | boolean | `false`/not set | don't create video output if set |
| `NUMDISKS` | integer | 1 | number of disks to be created and attached to VM |
| `PXEBOOT` | boolean | `false`/not set | boot VM from PXE (network) |
| `QEMU` | filename, path to Qemu binary | not set | filename of Qemu binary |
| `QEMUCPU` | see `qemu-kvm -cpu help` | not set | CPU to emulate |
| `QEMUCPUS` | integer | 1 | number of processor cores to use for Qemu |
| `QEMURAM` | integer | 1024 | size of RAM to use (in MiB) |
| `QEMUTHREADS` | integer | 0 | number of CPU threads to use for Qemu |
| `QEMUVGA` | see `qemu-kvm -device help` | `cirrus` (should be set to `std` on Fedora, cirrus driver [was retired](https://lists.fedoraproject.org/pipermail/devel/2014-May/199459.html)) | display device to use for VM |
| `LIVE` | boolean | not set | technically `PACKAGE_SET`, `KICKSTART`, `MIRRORLIST_GRAPHICAL`, `REPOSITORY_GRAPHICAL`, `REPOSITORY_VARIATION` | specify that the test is running on Live system - additional steps are required (starting Anaconda...) |
| `PACKAGE_SET` | string (`minimal`, `default`, ...) | `minimal`; `default` when `LIVE` is set | nothing | sets packageset to install - you have to add appropriate needles, see `tests/_software_selection.pm` |
| `ENTRYPOINT` | filename | not set | N/A | set `ENTRYPOINT` to load specific test directly (bypass modular structure, mainly usable for testing) |
| `UPGRADE` | string (`minimal`, `desktop`, `encrypted`, ...) | not set | all except of `LIVE` and `USER_PASSWORD` | when set, do an upgrade test of specified type |
| `KICKSTART` | boolean | `false`/not set | all | when specified, do an kickstart installation (you should use `GRUB` variable to specify where kickstart file resides) |
| `MIRRORLIST_GRAPHICAL` | boolean | `false`/not set | `REPOSITORY_GRAPHICAL` | sets installation source to mirrorlist |
| `REPOSITORY_GRAPHICAL` | url to repository (without arch and `/os`, for example `http://dl.fedoraproject.org/pub/fedora/linux/development`) | not set | `MIRRORLIST_GRAPHICAL` | sets installation source to repository url in Anaconda |
| `REPOSITORY_VARIATION` | url to repository (without arch and `/os`, for example `http://dl.fedoraproject.org/pub/fedora/linux/development`) | not set | nothing | sets installation source to repository url in GRUB |
| `PARTITIONING` | string (`custom_software_raid`, `guided_delete_all`, ...) | `guided_empty` | nothing | load specified test for partitioning part (when `PARTITIONING=guided_delete_all`, `tests/disk_guided_delete_all.pm` is loaded) and optionally post-install partitioning check (if `tests/disk_guided_delete_all_postinstall.pm` exists, it will be loaded after login to the installed system). Also, if value starts with `custom_`, the `select_disks()` method will check the custom partitioning box |
| `ENCRYPT_PASSWORD` | string | not set | nothing | if set, encrypt disk with given password |
| `DESKTOP` | boolean | `false`/not set | nothing | set to indicate that Fedora is running with GUI (so for example OpenQA should expect graphical login screen) |
| `ROOT_PASSWORD` | string | `weakpassword` | nothing | root password is set to this value |
| `GRUB` | string | not set | nothing | when set, append this string to kernel line in GRUB |
| `USER_LOGIN` | string | not set | should be used with `USER_PASSWORD` | when set, user login is set to this value |
| `USER_PASSWORD` | string | not set | should be used with `USER_LOGIN` | when set, user password is set to this value |
| `BOOT_UPDATES_IMG_URL` | boolean | `false`/not set | set to indicate that path to updates.img was appended to kernel line |
Run variables
-------------
These variables should be set when tests are scheduled (when running `isos post`).
| Variable | Explanation |
| -------- | ----------- |
| `ISO` | contains filename of ISO that is used for booting |
| `DISTRI` | contains distribution name (should be same as in WebUI, probably `fedora`) |
| `VERSION` | contains version of distribution |
| `FLAVOR` | indicates what type of distribution is used (`universal`, `generic_boot`, `workstation_live`, `server_boot`) |
| `ARCH` | is set to architecture that will be used (`x86_64`, `i686`) |
| `BUILD` | contains string `vv_tt_bb`, where `vv` is fedora version number, `tt` is release name (`Beta`, `Final`, ...) and `bb` is build (`RC3`, ...) |
