mirror of
https://github.com/yavook/kiwi-scp.git
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157 lines
4.9 KiB
Markdown
157 lines
4.9 KiB
Markdown
# kiwi-scp
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[](https://github.drone.yavook.de/ldericher/kiwi-scp)
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> `kiwi` - simple, consistent, powerful
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The simple tool for managing container servers
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## Quick start
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- Learn to use `docker` with `docker-compose`
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- Install kiwi-scp
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- Look at [the example instance](./example)
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- Look at the output of `kiwi --help`
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- Start building your own instances
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## Installation
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A convenience installer is available as [install.sh](./install.sh) in this directory.
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You can `curl | sh` it using the following one-liner.
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```shell script
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curl --proto '=https' --tlsv1.2 -sSf 'https://raw.githubusercontent.com/ldericher/kiwi-scp/master/install.sh' | sh
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```
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The installer downloads the `kiwi` launcher script and installs it to a location of your choice.
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Please consider installing into a directory inside your `$PATH`.
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Run in a root shell or use `sudo sh` instead for system-wide installation.
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You should now be able to run `kiwi init --show` and see the default configuration file.
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This downloads the latest version of the main kiwi-scp executable and sets it up for you.
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### Adjusting environment for `kiwi`
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The `kiwi` executable depends on [Python](https://www.python.org/) 3.6 (or later) and
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[less](http://www.greenwoodsoftware.com/less/) being in your `$PATH`.
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In some cases, notably when using a multi-version system such as
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[CentOS SCL](https://wiki.centos.org/AdditionalResources/Repositories/SCL), not all of these are in your `$PATH`
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at login time.
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In those cases, you can simply create a `.kiwi_profile` file in your home directory.
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It will be sourced every time you use the `kiwi` command.
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For the aforementioned case where you installed `centos-release-scl` and `rh-python36`, your `~/.kiwi_profile` should
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contain:
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```shell script
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#!/bin/sh
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. /opt/rh/rh-python36/enable
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```
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## Get started
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### Create a kiwi-scp instance
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Any directory is implicitly a valid kiwi-scp instance using the default configuration.
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To prevent surprises however, you should run `kiwi init` in an empty directory and follow its directions to
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create a `kiwi.yml` before using `kiwi` more.
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### Concept
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A kiwi-scp instance is a directory containing a bunch of static configuration files.
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"Static" there as in "those don't change during normal service operation".
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These files could be anything from actual `.conf` files to entire html-web-roots.
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Non-static, but persistent files are to be kept in a "service data directory", by default `/var/kiwi`.
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In your `docker-compose.yml` files, you can refer to that directory as **${TARGETROOT}**.
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Start the current directory as a kiwi-scp instance using `kiwi up`, or stop it using `kiwi down`.
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This also creates kiwi's internal hub network, which you can use as **kiwi_hub** in your `docker-compose.yml` files.
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### Projects
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A kiwi-scp instance usually contains several projects.
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A project is a collection of dependent or at least logically connected services, described by a `docker-compose.yml`.
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A well-known example would be webserver + php + database.
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To create a project, use the `kiwi new <project-name>` command.
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By default, this creates a new disabled project.
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Before enabling or starting, consider editing the new project's `docker-compose.yml` file to your liking.
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Finally, enable it with `kiwi enable <project-name>`.
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You can also create, enable or (analogously) disable multiple projects in a single command.
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Each project will have its own place in the service data directory, which you can refer to as **${TARGETDIR}**.
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Finally, start a project using `kiwi up <project-name>`.
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### Advanced kiwi usage
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kiwi-scp extends the logical bounds of `docker-compose` to handling multiple projects.
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#### The `kiwi_hub`
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With kiwi-scp, you get the internal kiwi_hub network for free.
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It allows for network communication between services in different projects.
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Be aware, services only connected to the kiwi_hub can't use a port mapping!
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In most cases, you will want to use this:
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```yaml
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networks:
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- default
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- kiwi_hub
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```
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#### The `CONFDIR`
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Sometimes, it's convenient to re-use configuration files across projects.
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For this use case, create a directory named `conf` in a project.
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Those will all be combined into a directory available as **${CONFDIR}** in your `docker-compose.yml` files.
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#### `kiwi.yml` options
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##### `version`
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Version of kiwi-scp to use for this instance.
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Default: Latest version.
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##### `runtime:storage`
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Path of the service data directory, available as **${TARGETROOT}** in projects.
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Default: `/var/kiwi`
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##### `runtime:shells`
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List of additionally preferable shell executables when entering service containers.
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Default: `- /bin/bash`
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Example:
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```yaml
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runtime:
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shells:
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- /bin/zsh
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- /bin/fish
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```
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##### `runtime:env`
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Associative array of custom variables available in projects' `docker-compose.yml` files.
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Default: `null`
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Example:
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```yaml
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runtime:
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env:
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HELLO: "World"
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FOO: "Bar"
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```
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#### For everything else, look at `kiwi --help`
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#### Happy kiwi-ing!
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