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Documentation

This commit is contained in:
Jörn-Michael Miehe 2020-08-25 18:01:39 +02:00
parent 755af1a4bb
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The simple tool for managing container servers
## Quick start
- Learn to use `docker` with `docker-compose`
- Install kiwi-config
- Look at [the example instance](./example/)
- Look at [the example instance](./example)
- Look at the output of `kiwi --help`
- Start building your own instances
## Installation
A convenience installer is available as [install.sh](./install.sh) in this directory.
You can `curl | sh` it using the following one-liner.
```shell script
curl --proto '=https' --tlsv1.2 -sSf 'https://raw.githubusercontent.com/ldericher/kiwi-config/master/install.sh' | sh
```
That script checks for the basic dependencies of the `kiwi` command, then downloads the main script and installs it to a location of your choice. Please consider installing `kiwi` into a directory inside your $PATH.
The installer downloads the `kiwi` launcher script and installs it to a location of your choice.
Please consider installing into a directory inside your `$PATH`.
Run in a root shell or use `sudo sh` instead for system-wide installation.
You should now be able to run `kiwi init --show` and see the default configuration file.
This downloads the latest version of the main kiwi-config executable and sets it up for you.
### Adjusting environment for `kiwi`
`kiwi-config` depends on Python 3.6 (or later), [pipenv](https://pipenv.pypa.io/), and
[less](http://www.greenwoodsoftware.com/less/) being in your `$PATH`.
In some cases, notably when using a multi-version system such as
[CentOS SCL](https://wiki.centos.org/AdditionalResources/Repositories/SCL), not all of these are in your `$PATH`
at login time.
In those cases, you can simply create a `.kiwienv` file in your home directory.
It will be sourced every time you use the `kiwi` command.
For the aforementioned case where you installed `centos-release-scl` and `rh-python36`, your `~/.kiwienv` should
contain:
```shell script
#!/bin/sh
. /opt/rh/rh-python36/enable
```
## Get started
TODO
### Create a kiwi-config instance
Any directory is implicitly a valid `kiwi-config` instance using the default configuration.
To prevent surprises however, you should run `kiwi init` in an empty directory and follow its directions before
actually using `kiwi` more.
### Concept
A `kiwi-config` instance is a directory containing a bunch of static configuration files.
"Static" there as in "those don't change during normal service operation".
These files could be anything from actual `.conf` files to entire html-web-roots.
Non-static, but persistent files are to be kept in a "service data directory", by default `/var/kiwi`.
In your `docker-compose.yml` files, you can refer to that directory as **${TARGETROOT}**.
Start the current directory as a `kiwi-config` instance using `kiwi up`, or stop it using `kiwi down`.
This also creates kiwi's internal hub network, which you can use as **kiwi_hub** in your `docker-compose.yml` files.
### Projects
A `kiwi-config` instance usually contains several projects.
A project is a collection of dependent or at least logically connected services, described by a `docker-compose.yml`.
A well-known example would be webserver + php + database.
To create a project, use the `kiwi new <project-name>` command.
By default, this creates a new disabled project.
Before enabling or starting, consider editing the new project's `docker-compose.yml` file to your liking.
Finally, enable it with `kiwi enable <project-name>`.
You can also create, enable or (analogously) disable multiple projects in a single command.
Each project will have its own place in the service data directory, which you can refer to as **${TARGETDIR}**.
Finally, start a project using `kiwi up <project-name>`.
### Advanced kiwi-config
`kiwi-config` extends the logical bounds of `docker-compose` to handling multiple projects.
#### The `kiwi_hub`
With kiwi-config, you get the internal kiwi_hub network for free.
It allows for network communication between services in different projects.
Be aware, services only connected to the kiwi_hub can't use a port mapping!
In most cases, you will want to use this:
```yaml
networks:
- default
- kiwi_hub
```
#### The `CONFDIR`
Sometimes, it's convenient to re-use configuration files across projects.
For this use case, create a directory named `conf` in a project.
Those will all be combined into a directory available as **${CONFDIR}** in your `docker-compose.yml` files.

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@ -21,7 +21,7 @@ def are_you_sure(prompt, default="no"):
suffix = "[yes|NO]"
answer = input(
f"{_surround('MUST HAVE CAREFULING IN PROGRESS', '!')}\n"
f"{_surround('MUST HAVE CAREFULING IN PROCESS', '!')}\n"
f"\n"
f"{_emphasize(prompt)}\n"
f"\n"