From a334a1545db4f5411037ce8a2e397c7ac86daf32 Mon Sep 17 00:00:00 2001
From: Christian Schwede <cschwede@redhat.com>
Date: Fri, 23 Dec 2016 08:27:10 +0100
Subject: Automatically backup and restore Swift rings from the undercloud

Swift rings created or updated on the overcloud nodes will now be
stored on the undercloud at the end of the deployment.  An
additional consistency check is executed before storing them,
ensuring all rings within the cluster are identical.

These rings will be retrieved (before Puppet runs) by every node
when an UPDATE is executed, and by doing this will be in a
consistent state across the cluster.

This makes it possible to add, remove or replace nodes in an
existing cluster without manual operator interaction.

Closes-Bug: 1609421
Depends-On: Ic3da38cffdd993c768bdb137c17d625dff1aa372
Change-Id: I758179182265da5160c06bb95f4c6258dc0edcd6
(cherry picked from commit b323f8a16035549d84cdec4718380bde3d23d6c3)
---
 extraconfig/tasks/swift-ring-deploy.yaml | 31 +++++++++++++++++++++++
 extraconfig/tasks/swift-ring-update.yaml | 42 ++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 extraconfig/tasks/swift-ring-deploy.yaml
 create mode 100644 extraconfig/tasks/swift-ring-update.yaml

(limited to 'extraconfig')

diff --git a/extraconfig/tasks/swift-ring-deploy.yaml b/extraconfig/tasks/swift-ring-deploy.yaml
new file mode 100644
index 00000000..d17f78ae
--- /dev/null
+++ b/extraconfig/tasks/swift-ring-deploy.yaml
@@ -0,0 +1,31 @@
+heat_template_version: ocata
+
+parameters:
+  servers:
+    type: json
+  SwiftRingGetTempurl:
+    default: ''
+    description: A temporary Swift URL to download rings from.
+    type: string
+
+resources:
+  SwiftRingDeployConfig:
+    type: OS::Heat::SoftwareConfig
+    properties:
+      group: script
+      inputs:
+        - name: swift_ring_get_tempurl
+      config: |
+        #!/bin/sh
+        pushd /
+        curl --insecure --silent "${swift_ring_get_tempurl}" | tar xz || true
+        popd
+
+  SwiftRingDeploy:
+    type: OS::Heat::SoftwareDeployments
+    properties:
+      name: SwiftRingDeploy
+      config: {get_resource: SwiftRingDeployConfig}
+      servers:  {get_param: servers}
+      input_values:
+        swift_ring_get_tempurl: {get_param: SwiftRingGetTempurl}
diff --git a/extraconfig/tasks/swift-ring-update.yaml b/extraconfig/tasks/swift-ring-update.yaml
new file mode 100644
index 00000000..440c6883
--- /dev/null
+++ b/extraconfig/tasks/swift-ring-update.yaml
@@ -0,0 +1,42 @@
+heat_template_version: ocata
+
+parameters:
+  servers:
+    type: json
+  SwiftRingPutTempurl:
+    default: ''
+    description: A temporary Swift URL to upload rings to.
+    type: string
+
+resources:
+  SwiftRingUpdateConfig:
+    type: OS::Heat::SoftwareConfig
+    properties:
+      group: script
+      inputs:
+        - name: swift_ring_put_tempurl
+      config: |
+        #!/bin/sh
+        TMP_DATA=$(mktemp -d)
+        function cleanup {
+          rm -Rf "$TMP_DATA"
+        }
+        trap cleanup EXIT
+        # sanity check in case rings are not consistent within cluster
+        swift-recon --md5 | grep -q "doesn't match" && exit 1
+        pushd ${TMP_DATA}
+        tar -cvzf swift-rings.tar.gz /etc/swift/*.builder /etc/swift/*.ring.gz /etc/swift/backups/*
+        resp=`curl --insecure --silent -X PUT "${swift_ring_put_tempurl}" --write-out "%{http_code}" --data-binary @swift-rings.tar.gz`
+        popd
+        if [ "$resp" != "201" ]; then
+            exit 1
+        fi
+
+  SwiftRingUpdate:
+    type: OS::Heat::SoftwareDeployments
+    properties:
+      name: SwiftRingUpdate
+      config: {get_resource: SwiftRingUpdateConfig}
+      servers: {get_param: servers}
+      input_values:
+        swift_ring_put_tempurl: {get_param: SwiftRingPutTempurl}
-- 
cgit 1.2.3-korg