deploy: Delete old Fuel env if present

In order to clean up old partitioning and boot entries on target
nodes, before removing the Fuel Master, try ssh-ing into it and
removing all environments/nodes.

This is especially important for EFI systems, where old boot
entries are left behind without a proper env delete, leading to
target nodes failing to PXE boot on Fuel Master re-install.

This change assumes that:
- all Fuel Master information is unchanged between old and new
  deploy (fuel IP, password etc.);
- Fuel Master is up and running, in a sane state (target nodes
  are also online), when deploy starts;

Closes: ARMBAND-51

Change-Id: I52b853b37a0d226a9cb33179f7aeb65eff74da4e
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/patches/opnfv-fuel/0002-deploy-Delete-old-Fuel-env-if-present.patch b/patches/opnfv-fuel/0002-deploy-Delete-old-Fuel-env-if-present.patch
new file mode 100644
index 00000000..e7867d48
--- /dev/null
+++ b/patches/opnfv-fuel/0002-deploy-Delete-old-Fuel-env-if-present.patch
@@ -0,0 +1,58 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Mon, 18 Jul 2016 17:42:48 +0200
+Subject: [PATCH] deploy: Delete old Fuel env if present
+
+In order to clean up old partitioning and boot entries on target
+nodes, before removing the Fuel Master, try ssh-ing into it and
+removing all environments/nodes.
+
+This is especially important for EFI systems, where old boot
+entries are left behind without a proper env delete, leading to
+target nodes failing to PXE boot on Fuel Master re-install.
+
+This change assumes that:
+- all Fuel Master information is unchanged between old and new
+  deploy (fuel IP, password etc.);
+- Fuel Master is up and running, in a sane state (target nodes
+  are also online), when deploy starts;
+
+Closes: ARMBAND-51
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ deploy/deploy.py | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+diff --git a/deploy/deploy.py b/deploy/deploy.py
+index 48a53c3..184510f 100755
+--- a/deploy/deploy.py
++++ b/deploy/deploy.py
+@@ -110,6 +110,20 @@ class AutoDeploy(object):
+         self.iso_file = new_iso
+         self.install_iso()
+ 
++    def delete_old_fuel_env(self):
++        log('Delete old Fuel Master environments if present')
++        try:
++            old_dep = CloudDeploy(self.dea, self.dha, self.fuel_conf['ip'],
++                                  self.fuel_username, self.fuel_password,
++                                  self.dea_file, self.fuel_plugins_conf_dir,
++                                  WORK_DIR, self.no_health_check,
++                                  self.deploy_timeout,
++                                  self.no_deploy_environment, self.deploy_log)
++            with old_dep.ssh:
++                old_dep.check_previous_installation()
++        except Exception as e:
++            log('Could not delete old env: %s' % str(e))
++
+     def install_iso(self):
+         fuel = InstallFuelMaster(self.dea_file, self.dha_file,
+                                  self.fuel_conf['ip'], self.fuel_username,
+@@ -227,6 +241,7 @@ class AutoDeploy(object):
+     def deploy(self):
+         self.collect_fuel_info()
+         if not self.no_fuel:
++            self.delete_old_fuel_env()
+             self.setup_execution_environment()
+             self.create_tmp_dir()
+             self.install_fuel_master()