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Have questions about this document or anything not covered here? Come chat with us at `#ansible-awx` on irc.freenode.net, or submit your question to the [mailing list](https://groups.google.com/forum/#!forum/awx-project) .
- All code submissions are done through pull requests against the `devel` branch.
- You must use `git commit --signoff` for any commit to be merged, and agree that usage of --signoff constitutes agreement with the terms of [DCO 1.1](./DCO_1_1.md).
- Take care to make sure no merge commits are in the submission, and use `git rebase` vs `git merge` for this reason.
- If submitting a large code change, it's a good idea to join the `#ansible-awx` channel on irc.freenode.net, and talk about what you would like to do or add first. This not only helps everyone know what's going on, it also helps save time and effort, if the community decides some changes are needed.
- We ask all of our community members and contributors to adhere to the [Ansible code of conduct](http://docs.ansible.com/ansible/latest/community/code_of_conduct.html). If you have questions, or need assistance, please reach out to our community team at [codeofconduct@ansible.com](mailto:codeofconduct@ansible.com)
The AWX development environment workflow and toolchain is based on Docker, and the docker-compose tool, to provide dependencies, services, and databases necessary to run all of the components. It also binds the local source tree into the development container, making it possible to observe and test changes in real time.
Prior to starting the development services, you'll need `docker` and `docker-compose`. On Linux, you can generally find these in your distro's packaging, but you may find that Docker themselves maintain a separate repo that tracks more closely to the latest releases.
For macOS and Windows, we recommend [Docker for Mac](https://www.docker.com/docker-mac) and [Docker for Windows](https://www.docker.com/docker-windows)
If you're not using Docker for Mac, or Docker for Windows, you may need, or choose to, install the Docker compose Python module separately, in which case you'll need to run the following:
If you have not done so already, you'll need to fork the AWX repo on GitHub. For more on how to do this, see [Fork a Repo](https://help.github.com/articles/fork-a-repo/).
AWX will import the file `awx/settings/local_settings.py` and combine it with defaults in `awx/settings/defaults.py`. This file is required for starting the development environment and startup will fail if it's not provided.
The AWX base container image (defined in `tools/docker-compose/Dockerfile`) contains basic OS dependencies and symbolic links into the development environment that make running the services easy.
The above utilizes the image built in the previous step, and will automatically start all required services and dependent containers. Once the containers launch, your session will be attached to the *awx* container, and you'll be able to watch log messages and events in real time. You will see messages from Django, celery, and the front end build process.
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
aa4a75d6d77b gcr.io/ansible-tower-engineering/awx_devel:devel "/tini -- /bin/sh ..." 23 seconds ago Up 15 seconds 0.0.0.0:5555->5555/tcp, 0.0.0.0:6899-6999->6899-6999/tcp, 0.0.0.0:8013->8013/tcp, 0.0.0.0:8043->8043/tcp, 22/tcp, 0.0.0.0:8080->8080/tcp tools_awx_1
e4c0afeb548c postgres:9.6 "docker-entrypoint..." 26 seconds ago Up 23 seconds 5432/tcp tools_postgres_1
0089699d5afd tools_logstash "/docker-entrypoin..." 26 seconds ago Up 25 seconds tools_logstash_1
4d4ff0ced266 memcached:alpine "docker-entrypoint..." 26 seconds ago Up 25 seconds 0.0.0.0:11211->11211/tcp tools_memcached_1
92842acd64cd rabbitmq:3-management "docker-entrypoint..." 26 seconds ago Up 24 seconds 4369/tcp, 5671-5672/tcp, 15671/tcp, 25672/tcp, 0.0.0.0:15672->15672/tcp tools_rabbitmq_1
```
**NOTE**
> The Makefile assumes that the image you built is tagged with your current branch. This allows you to build images for different contexts or branches. When starting the containers, you can choose a specific branch by setting `COMPOSE_TAG=<branch name>` in your environment.
> For example, you might be working in a feature branch, but you want to run the containers using the `devel` image you built previously. To do that, start the containers using the following command: `$ COMPOSE_TAG=devel make docker-compose`
The first time you start the environment, database migrations need to run in order to build the PostgreSQL database. It will take few moments, but eventually you will see output in your terminal session that looks like the following:
Often times you'll want to start the development environment without immediately starting all of the services in the *awx* container, and instead be taken directly to a shell. You can do this with the following:
Using `docker exec`, this will create a session in the running *awx* container, and place you at a command prompt, where you can run shell commands inside the container.
Now you can start each service individually, or start all services in a pre-configured tmux session like so:
```bash
(container)# cd /awx_devel
(container)# make server
```
### Post Build Steps
Before you can log in and use the system, you will need to create an admin user. Optionally, you may also want to load some demo data.
##### Start a shell
To create the admin user, and load demo data, you first need to start a shell session on the *awx* container. In a new terminal session, use the `docker exec` command as follows to start the shell session:
```bash
(host)$ docker exec -it tools_awx_1 bash
```
This creates a session in the *awx* containers, just as if you were using `ssh`, and allows you execute commands within the running container.
##### Create an admin user
Before you can log into AWX, you need to create an admin user. With this user you will be able to create more users, and begin configuring the server. From within the container shell, run the following command:
```bash
(container)# awx-manage createsuperuser
```
You will be prompted for a username, an email address, and a password, and you will be asked to confirm the password. The email address is not important, so just enter something that looks like an email address. Remember the username and password, as you will use them to log into the web interface for the first time.
You can optionally load some demo data. This will create a demo project, inventory, and job template. From within the container shell, run the following to load the data:
> This information will persist in the database running in the `tools_postgres_1` container, until the container is removed. You may periodically need to recreate
this container, and thus the database, if the database schema changes in an upstream commit.
You can now log into the AWX web interface at [https://localhost:8043](https://localhost:8043), and access the API directly at [https://localhost:8043/api/](https://localhost:8043/api/).
To log in use the admin user and password you created above in [Create an admin user](#create-an-admin-user).
### Purging containers and images
When necessary, remove any AWX containers and images by running the following:
If it has someone assigned to it then that person is the person responsible for working the enhancement. If you feel like you could contribute then reach out to that person.
Fixing bugs, adding translations, and updating the documentation are always appreciated, so reviewing the backlog of issues is always a good place to start. For extra information on debugging tools, see [Debugging](https://github.com/ansible/awx/blob/devel/docs/debugging.md).
> If you work in a part of the codebase that is going through active development, your changes may be rejected, or you may be asked to `rebase`. A good idea before starting work is to have a discussion with us in the `#ansible-awx` channel on irc.freenode.net, or on the [mailing list](https://groups.google.com/forum/#!forum/awx-project).
**NOTE**
> If you're planning to develop features or fixes for the UI, please review the [UI Developer doc](./awx/ui/README.md).
It's generally a good idea to discuss features with us first by engaging us in the `#ansible-awx` channel on irc.freenode.net, or on the [mailing list](https://groups.google.com/forum/#!forum/awx-project).
We like to keep our commit history clean, and will require resubmission of pull requests that contain merge commits. Use `git pull --rebase`, rather than
`git pull`, and `git rebase`, rather than `git merge`.
Sometimes it might take us a while to fully review your PR. We try to keep the `devel` branch in good working order, and so we review requests carefully. Please be patient.
We welcome your feedback, and encourage you to file an issue when you run into a problem. But before opening a new issues, we ask that you please view our [Issues guide](./ISSUES.md).
