From a7e2c846880924168a94218ed6205b1e44f8aeda Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Mon, 25 Jun 2018 22:05:02 +0300
Subject: Add: example of an .ick file to the front page

---
 index.mdwn | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)

(limited to 'index.mdwn')

diff --git a/index.mdwn b/index.mdwn
index 6883e63..638555b 100644
--- a/index.mdwn
+++ b/index.mdwn
@@ -24,3 +24,81 @@ Latest news from the project:
 [[!inline pages="page(blog/*) and tagged(news)" 
   limit=5 template=titlepage archive=yes trail=no feeds=no]]
 </div>
+
+
+# Example .ick file
+
+An .ick file defines projects and pipelines for ick. Here's an
+example:
+
+    projects:
+
+      # Define project to build a container "system tree": basically
+      # the "chroot" for the container.
+
+      - project: stretch_systree
+        pipelines:
+          - build_debian_systree
+        parameters:
+          debian_codename: stretch
+          packages:
+            - build-essential
+            - git
+            - jq
+          artifact_name: stretch_systree
+
+      # Define a project to say "hello, world" inside a container.x
+
+      - project: hello
+        pipelines:
+          - prepare_container
+          - hello
+        parameters:
+          systree_name: stretch_systree
+
+    pipelines:
+
+      # Define a pipeline of actions to build a system tree. Note
+      # that this is reuseable for different systrees, by the project
+      # giving it different parameters.
+
+      - pipeline: build_debian_systree
+        parameters:
+          - debian_codename
+          - packages
+          - artifact_name
+        actions:
+          - debootstrap: auto
+            mirror: http://deb.debian.org/debian
+            where: host
+
+          - shell: |
+              apt-get install -y python3
+            where: chroot
+
+          - python: |
+              import os, subprocess
+              def runcmd(argv, **kwargs):
+                subprocess.check_call(argv, **kwargs)
+              runcmd(['apt-get', 'install', '-y'] + params['packages'])
+            where: chroot
+
+          - archive: workspace
+            where: host
+
+      # Prepare container for building: get systree from artifact store.
+
+      - pipeline: prepare_container
+        actions:
+          - action: populate_systree
+            where: host
+
+      # Execute "echo hello, world" inside the container for a project.
+
+      - pipeline: hello
+        actions:
+          - shell: |
+              echo hello, world
+              pwd
+            where: container
+
-- 
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