# kiwi-scp [![Build Status](https://github.drone.yavook.de/api/badges/ldericher/kiwi-scp/status.svg)](https://github.drone.yavook.de/ldericher/kiwi-scp) > `kiwi` - simple, consistent, powerful The simple tool for managing container servers ## Quick start - Learn to use `docker` with `docker-compose` - Install `kiwi-scp` - 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](./dist/install.sh) in the `dist` 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-scp/master/dist/install.sh' | sh ``` The installer downloads the `kiwi` launcher script and installs it to a location of your choice. Please consider installing into a directory inside your `$PATH`. Run in a root shell or use `sudo sh` at the end instead for system-wide installation. You should then be able to run `kiwi list --show` and see the default configuration file. This installs the latest version of the kiwi-scp package and sets it up for you. ### Adjusting environment for `kiwi` The `kiwi` executable depends on [Python](https://www.python.org/) 3.6.1 (or later) and [less](http://www.greenwoodsoftware.com/less/) being in your `$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 `$PATH` at login time. In those cases, you can simply create a `.kiwi_profile` file in your home directory. It will be sourced every time you use the `kiwi` command. For the aforementioned case where you installed `centos-release-scl` and `rh-python36`, your `~/.kiwi_profile` should contain: ```shell script #!/bin/sh . /opt/rh/rh-python36/enable ``` ## Get started ### Create a kiwi-scp instance Any directory is implicitly a valid kiwi-scp instance using the default configuration. To prevent surprises however, you should run `kiwi init` and follow its directions to create a `kiwi.yml` for your instance before using `kiwi` more. ### Concept A kiwi-scp instance is a directory containing a bunch of static configuration files. "Static" there as in "those don't change during normal service operation". These files could be anything from actual `.conf` files to entire html-web-roots. Non-static, persistent files are to be kept in a "service data storage", by default the directory `/var/local/kiwi`. In your `docker-compose.yml` files, you can refer to that directory as **${KIWI_INSTANCE}**. Start the current kiwi-scp instance using `kiwi up`, or stop it using `kiwi down`. This also manages kiwi's internal hub network, which you can use as **kiwi_hub** in your `docker-compose.yml` files. ### Projects A kiwi-scp 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 ` 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 `. 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 **${KIWI_PROJECT}**. Finally, start a project using `kiwi up `. ### Advanced kiwi usage kiwi-scp extends the logical bounds of `docker-compose` to handling multiple projects. #### The `kiwi_hub` With kiwi-scp, you get the internal `kiwi_hub` network for free. It allows for network communication between services in different projects. Be aware, services only connected to the kiwi_hub can't use a port mapping! In most cases, you will want to use this: ```yaml networks: - default - kiwi_hub ``` #### The `KIWI_CONFIG` Sometimes, it's convenient to re-use configuration files across projects. For this use case, create a directory named `config` in your instance. In your `docker-compose.yml` files, you can refer to that directory as **${KIWI_CONFIG}**. #### `kiwi.yml` options ##### `version` Version of kiwi-scp to use for this instance. Default: Version of [`master` branch](https://github.com/ldericher/kiwi-scp/tree/master). ##### `shells` Sequence of additionally preferable shell executables when entering service containers. Default: `- /bin/bash` Example: ```yaml runtime: shells: - /bin/zsh - /bin/fish ``` ##### `projects` Sequence of project definitions in this instance. ###### Project definition Defining a project in this instance. Any subdirectory with a `docker-compose.yml` should be considered a project. The directory name is equivalent to the project name. Format[^1]: Mapping using the keys `name` (required), `enabled` and `override_storage` Example: ```yaml - name: "hello_world" enabled: true ``` ##### `environment` Custom variables available in projects' `docker-compose.yml` files. Format[^1]: Mapping of `KEY: "value"` pairs Example: ```yaml environment: HELLO: "World" FOO: "Bar" ``` ##### `storage` Configuration for the service data storage. Format: Mapping using the key `directory` Example: ```yaml storage: directory: "/var/local/kiwi" ``` ###### `storage:directory` Path to the local service data directory, the only currently supported service data storage. Available as **${KIWI_INSTANCE}** in projects. Default: `"/var/local/kiwi"` ##### `network` Configuration for the internal `kiwi_hub` network. Format: Mapping using the keys `name` and `cidr` Example: ```yaml network: name: "kiwi_hub" cidr: "10.22.46.0/24" ``` ###### `network:name` Configuration for the internal `kiwi_hub` network. Default: `"kiwi_hub"` ###### `network:cidr` [CIDR notation](https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing#IPv4_CIDR_blocks) for the subnet of the internal `kiwi_hub` network. Default: `"10.22.46.0/24"` **For everything else, look at `kiwi --help`** **Happy kiwi-ing!** [^1]: This is the officially correct format. For enabling varying conventions, there are multiple accepted formats. Start trying and check with `kiwi list --show` -- if it makes sense, it will likely just work.