From 3e55c310174590b02d7db4e421e330b2cdd54526 Mon Sep 17 00:00:00 2001
From: Paul Collins <paul.collins@canonical.com>
Date: Tue, 2 Oct 2012 22:25:11 +1300
Subject: [PATCH] add README and some prototype hooks

---
 README                      | 18 ++++++++++++++++++
 config.yaml                 |  9 ++++++++-
 copyright                   |  1 +
 hooks/install               | 19 +++++++++++++++++++
 hooks/mon-relation          |  5 +++++
 hooks/mon-relation-changed  |  1 +
 hooks/mon-relation-departed |  1 +
 hooks/mon-relation-joined   |  1 +
 hooks/start                 | 13 +++++++++++++
 metadata.yaml               |  3 +++
 10 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 README
 create mode 100755 hooks/install
 create mode 100755 hooks/mon-relation
 create mode 120000 hooks/mon-relation-changed
 create mode 120000 hooks/mon-relation-departed
 create mode 120000 hooks/mon-relation-joined
 create mode 100644 hooks/start

diff --git a/README b/README
new file mode 100644
index 0000000..0b56260
--- /dev/null
+++ b/README
@@ -0,0 +1,18 @@
+This charm deploys a Ceph cluster.
+
+It uses the new-style Ceph deployment as reverse-engineered from the
+Chef cookbook at https://github.com/ceph/ceph-cookbooks
+
+This charm is currently deliberately inflexible and potentially
+destructive.  It is designed to deploy on exactly three machines.
+Each machine will run mon and osd.
+
+The osds use so-called "OSD hotplugging".  ceph-disk-prepare is used
+to create the filesystems with a special GPT partition type.  udev is
+set up to mount such filesystems and start the osd daemons as their
+storage becomes visible to the system (or after "udevadm trigger").
+
+The Chef cookbook above performs some extra steps to generate an OSD
+bootstrapping key and propagate it to the other nodes in the cluster.
+Since all our OSDs run on nodes that also run mon, we don't need this
+and did not implement it.
diff --git a/config.yaml b/config.yaml
index 5107e47..0fca4bc 100644
--- a/config.yaml
+++ b/config.yaml
@@ -4,6 +4,13 @@ options:
     description: |
       fsid of our cluster
   osd-devices:
-    default: ["/dev/sdb", "/dev/sdc", "/dev/sdd", "/dev/sde"]
+    type: string
+    default: /dev/sdb /dev/sdc /dev/sdd /dev/sde
     description: |
       the devices to format and set up as osd volumes
+  monitor-secret:
+    type: string
+    description: |
+      this value will become the "mon." key
+      to generate a suitable value, use
+      ceph-authtool /dev/stdout --name=mon. --gen-key
diff --git a/copyright b/copyright
index 44e9574..8b380c2 100644
--- a/copyright
+++ b/copyright
@@ -2,3 +2,4 @@ Copyright 2012 Canonical Ltd.
 
 Authors:
 	Paul Collins <paul.collins@canonocal.com>
+	James Page <james.page@canonical.com>
diff --git a/hooks/install b/hooks/install
new file mode 100755
index 0000000..b26b687
--- /dev/null
+++ b/hooks/install
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -e
+set -u
+
+# set up ceph package source
+# XXX make this a charm config option
+cat >/etc/apt/sources.list.d/ceph-brolin.list <<EOF
+deb http://archive.admin.canonical.com/ubuntu precise-cat-ceph main
+EOF
+
+apt-get update
+
+apt-get -y install ceph
+
+# ceph-prepare-disk uses this, is only "suggests" in the package
+apt-get -y install gdisk
+
+exit 0
diff --git a/hooks/mon-relation b/hooks/mon-relation
new file mode 100755
index 0000000..dff7386
--- /dev/null
+++ b/hooks/mon-relation
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+set -e
+set -u
+
diff --git a/hooks/mon-relation-changed b/hooks/mon-relation-changed
new file mode 120000
index 0000000..72e6b73
--- /dev/null
+++ b/hooks/mon-relation-changed
@@ -0,0 +1 @@
+mon-relation
\ No newline at end of file
diff --git a/hooks/mon-relation-departed b/hooks/mon-relation-departed
new file mode 120000
index 0000000..72e6b73
--- /dev/null
+++ b/hooks/mon-relation-departed
@@ -0,0 +1 @@
+mon-relation
\ No newline at end of file
diff --git a/hooks/mon-relation-joined b/hooks/mon-relation-joined
new file mode 120000
index 0000000..72e6b73
--- /dev/null
+++ b/hooks/mon-relation-joined
@@ -0,0 +1 @@
+mon-relation
\ No newline at end of file
diff --git a/hooks/start b/hooks/start
new file mode 100644
index 0000000..f27ac7b
--- /dev/null
+++ b/hooks/start
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -e
+set -u
+
+
+for disk in $(config-get osd-devices); do
+    ceph-disk-prepare $disk
+done
+
+udevadm trigger --subsystem-match=block --action=add
+
+exit 0
diff --git a/metadata.yaml b/metadata.yaml
index dbc974d..906cdb4 100644
--- a/metadata.yaml
+++ b/metadata.yaml
@@ -2,3 +2,6 @@ name: ceph-brolin
 summary: distributed storage
 description: |
   This charm deploys Ceph.
+peers:
+  mon:
+    interface: ceph-brolin