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# QTIP Developer Guide
This guide is about how to **develop** QTIP.
If you just want to use it for performance benchmark, check the user guide
instead.
## Getting Started
### Source code
```bash
~$ git clone https://gerrit.opnfv.org/gerrit/qtip
```
### VirtualEnv
It is recommended to use [virtualenv](https://virtualenv.pypa.io) to isolate
your development environment from system, especially when you are working on
several different projects.
### Testing
QTIP use [tox](https://tox.readthedocs.io) to automate the testing tasks
```bash
$ pip install tox
$ tox
```
Undering macOS system, it will happen to a **fatal error** when installing package `cryptograph`:
```
'openssl/opensslv.h' file not found
#incude <openssl/opensslv.h>
^
1 error generated.
```
It is for macOS uses TLS instead of OpenSSL and no header files supported. The solutions is:
``` code=bash
# brew install openssl
# #add these lines in to your shell profiles, such as .bash_profile, .zshrc
# export CPPFLAGS='-I $openssl_install_path/include'
# export LDFLAGS='-L $openssl_install_path/lib'
```
### Third Party Code
QTIP includes a few third party code via [subrepo](https://github.com/ingydotnet/git-subrepo).
All third party code are stored in `/third-party`.
To pull the changes from remote repository, use
```
git subrepo pull third-party/<subdir>
```
It will create a new commit in parent repo, i.e. `qtip`. However, the
auto generated commit message does not include mandatory tags such as
`Change-Id` required by gerrit. You need to manually amend the commit to
append those.
```
git commit --amend -s
```
Example of final commit message
```
Include third party script for license checking and amending
The following commit message are generated automatically by git-subrepo
-----------------------------------------------------------------------------
git subrepo clone git@github.com:openzero-zte/License.git third-party/License
subrepo:
subdir: "third-party/License"
merged: "61489da"
upstream:
origin: "git@github.com:openzero-zte/License.git"
branch: "master"
commit: "61489da"
git-subrepo:
version: "0.3.0"
origin: "https://github.com/ingydotnet/git-subrepo"
commit: "988f8c8"
-----------------------------------------------------------------------------
Change-Id: I8eab86a8ce3f26995af3e3535f31f361b4826a8b
Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>
```
Sometimes you may modify the third-party code to adapt it in `qtip`.
To push the changes to remote repository, run
```
git subrepo push third-party/<subdir>
```
If you want to include a new repository of third party code. Use
```
git subrepo clone <remote-url> [<subdir>]
```
## Architecture
**TODO**: move to design spec
QTIP has a flexible architecture to allow different deployment mode
- **Standalone**: full feature performance benchmark platform.
- **Agent**: minimal agent driven by external test runners.
### Standalone Mode (Solo)
QTIP instance deployed in container, VM or host generate benchmark report and
push data to Indices Hub for storage and visualization.
### Agent Mode (Melody)
QTIP Collector and Reporter driven by external test framework or runner such as
[yardstick](https://wiki.opnfv.org/display/yardstick),
[pytest](http://doc.pytest.org/) and etc.
## Core Modules
TBD
- loader
- runner
- collector
- reporter
## Drivers
TBD
- ansible
- yardstick
## Interfaces
### Agent
TBD
### CLI
TBD
### API
TBD
## Assets
**TODO**: move to user guide
- benchmark plan
- QPI spec
- metric spec
## Docker Image
TBD
## Annex
### Directories
TBD
|
