From b0a01f54c82de425d1e2a9d6a30c73d8d6900501 Mon Sep 17 00:00:00 2001
From: Antoine Catton <acatton@tiolive.com>
Date: Wed, 29 Aug 2012 19:01:48 +0900
Subject: [PATCH] Add promises on lxc SR

---
 software/lxc/check_exists.sh.in |  3 +++
 software/lxc/check_state.sh.in  |  8 ++++++++
 software/lxc/instance-lxc.cfg   | 33 ++++++++++++++++++++++++++++++++-
 software/lxc/software.cfg       | 23 +++++++++++++++++++----
 4 files changed, 62 insertions(+), 5 deletions(-)
 create mode 100644 software/lxc/check_exists.sh.in
 create mode 100644 software/lxc/check_state.sh.in

diff --git a/software/lxc/check_exists.sh.in b/software/lxc/check_exists.sh.in
new file mode 100644
index 0000000..bbda187
--- /dev/null
+++ b/software/lxc/check_exists.sh.in
@@ -0,0 +1,3 @@
+#!${:bash} -e
+
+${:test-binary} -f ${:file}
diff --git a/software/lxc/check_state.sh.in b/software/lxc/check_state.sh.in
new file mode 100644
index 0000000..ae88e62
--- /dev/null
+++ b/software/lxc/check_state.sh.in
@@ -0,0 +1,8 @@
+#!${:bash} -e
+
+if [ -f ${:file} ]
+then
+    ${:test-binary} $(${:cat} ${:file}) = ${:value}
+else
+    exit 1
+fi
diff --git a/software/lxc/instance-lxc.cfg b/software/lxc/instance-lxc.cfg
index fb1df1e..37d4436 100644
--- a/software/lxc/instance-lxc.cfg
+++ b/software/lxc/instance-lxc.cfg
@@ -12,6 +12,10 @@ parts =
     shellinabox
     certificate-authority
     ca-shellinabox
+    container-promise
+    shellinabox-promise
+    rootfs-promise
+
 
 [rootdirectory]
 recipe = slapos.cookbook:mkdirectory
@@ -23,6 +27,7 @@ bin = $${buildout:directory}/bin
 [basedirectory]
 recipe = slapos.cookbook:mkdirectory
 services = $${rootdirectory:etc}/run
+promises = $${rootdirectory:etc}/promise
 
 [directory]
 recipe = slapos.cookbook:mkdirectory
@@ -45,7 +50,6 @@ certs = $${directory:ca-dir}/certs/
 newcerts = $${directory:ca-dir}/newcerts/
 crl = $${directory:ca-dir}/crl/
 
-
 [rootfs]
 recipe = slapos.cookbook:downloader
 url = $${slap-parameter:rootfs}
@@ -118,6 +122,33 @@ recipe = slapos.cookbook:publish
 url = https://[$${shellinabox:ipv6}]:$${shellinabox:port}/
 password = $${shellinabox:password}
 
+[template-promise-state]
+recipe = slapos.recipe.template
+url = ${promise-state:location}/${promise-state:filename}
+bash = ${bash:location}/bin/bash
+test-binary = ${coreutils:location}/bin/test
+cat = ${coreutils:location}/bin/cat
+value = started
+mode = 700
+
+[container-promise]
+<= template-promise-state
+output = $${basedirectory:promises}/slapcontainer
+file = $${buildout:directory}/.slapcontainer.state
+
+[shellinabox-promise]
+<= template-promise-state
+output = $${basedirectory:promises}/shellinabox
+file = $${buildout:directory}/.shellinabox.state
+
+[rootfs-promise]
+recipe = slapos.recipe.template
+url = ${promise-exists:location}/${promise-exists:filename}
+output = $${basedirectory:promises}/rootfs
+bash = ${bash:location}/bin/bash
+test-binary = ${coreutils:location}/bin/test
+file = $${rootfs:downloaded-file-complete}
+mode = 700
 
 [slap-parameter]
 rootfs-md5sum =
diff --git a/software/lxc/software.cfg b/software/lxc/software.cfg
index 7853236..24f2d06 100644
--- a/software/lxc/software.cfg
+++ b/software/lxc/software.cfg
@@ -11,6 +11,8 @@ extends =
   ../../component/tar/buildout.cfg
   ../../component/shellinabox/buildout.cfg
   ../../component/pwgen/buildout.cfg
+  ../../component/bash/buildout.cfg
+  ../../component/coreutils/buildout.cfg
 
 find-links +=
   http://www.nexedi.org/static/packages/source/slapos-lxc/
@@ -36,18 +38,31 @@ mode = 0644
 [template-lxc]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-lxc.cfg
-md5sum = 056912602caa71a2af9fcae97ee6dfb9
+md5sum = af5e31fb41e2d31b25f172df45f29fc6
 output = ${buildout:directory}/template-lxc.cfg
 mode = 0644
 
-[lxc-conf-in]
+[download]
 recipe = slapos.recipe.build:download
 url = ${:_profile_base_location_}/${:filename}
-filename = lxc.conf.in
-md5sum = b25334fc369e4e0f608bc64f14b0315d
 download-only = true
 mode = 0644
 
+[lxc-conf-in]
+<= download
+filename = lxc.conf.in
+md5sum = b25334fc369e4e0f608bc64f14b0315d
+
+[promise-state]
+<= download
+filename = check_state.sh.in
+md5sum = 725fb0477f8b8778566ed4b22b25bf27
+
+[promise-exists]
+<= download
+filename = check_exists.sh.in
+md5sum = 60d4f5f73a3d10a3d7d7201aab977d19
+
 [slapos-toolbox]
 recipe = zc.recipe.egg
 scripts = slapcontainer
-- 
2.1.4