Scripts to configure yum and upgrade system

The first script in this changeset configures yum to use a proxy (if
VM_PROXY is set) and adds the RDO repo.

The second script updates the packages installed in a yum-based system.

Partial-Bug: 1312764
Implements: blueprint openstack-training-labs
Change-Id: Iad42b6aad2bf48329cb2c3bb2bc7a1d698d9c608

labs/scripts/yum_init.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+TOP_DIR=$(cd $(dirname "$0")/.. && pwd)
+source "$TOP_DIR/config/paths"
+source "$CONFIG_DIR/openstack"
+# Pick up VM_PROXY
+source "$CONFIG_DIR/localrc"
+source "$LIB_DIR/functions.guest"
+
+indicate_current_auto
+
+exec_logfile
+
+function set_yum_proxy {
+    local YUM_FILE=/etc/yum.conf
+    if [ -z "${VM_PROXY-}" ]; then return 0; fi
+    echo "proxy=${VM_PROXY}" | sudo tee -a $YUM_FILE
+}
+
+set_yum_proxy
+
+# Enable RDO repo
+if [[ ${OPENSTACK_RELEASE:-} = icehouse ]]; then
+    sudo yum install "http://repos.fedorapeople.org/repos/openstack/openstack-$OPENSTACK_RELEASE/rdo-release-$OPENSTACK_RELEASE-3.noarch.rpm"
+else
+    echo 2>&1 "ERROR Unknown OpenStack release."
+    return 1
+fi

labs/scripts/yum_update.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+TOP_DIR=$(cd $(dirname "$0")/.. && pwd)
+source "$TOP_DIR/config/paths"
+source "$CONFIG_DIR/openstack"
+source "$LIB_DIR/functions.guest"
+
+indicate_current_auto
+
+exec_logfile
+
+# Upgrade installed packages
+sudo yum -y update