Add cloud-init support for OLVM

Signed-off-by: Philippe Vanhaesendonck <philippe.vanhaesendonck@oracle.com>

oracle-linux-image-tools/README.md

@@ -57,6 +57,12 @@ Files are processed in that order.
 As user you should only make changes in your local `env.properties` where you can override any definition from the previous property files.  
 Relevant parameters are documented in the distributed [`env.properties`](env.properties) file.
 
+# Cloud specific notes
+## OLVM
+The `olvm` cloud target generates an OVA file. The process to import OVA files in the Oracle Linux Virtualization Manager is described in this [blog post](https://blogs.oracle.com/scoter/import-configure-oracle-linux-7-template-for-oracle-linux-kvm).
+
+For cloud-init support, you will need to specify `CLOUD_INIT="Yes"` in your `env.properties` file.
+
 # Builder architecture
 ## Directory structure
 The `build-image` script relies on the following directory structure:

oracle-linux-image-tools/cloud/olvm/env.properties

@@ -0,0 +1,8 @@
+# Default parameter for the OLVM cloud.
+# Do NOT change anything in this file, customisation must be done in separate
+# env file.
+
+# Install cloud-init? (Yes/No)
+CLOUD_INIT="No"
+# Cloud-init user (Empty variable means keep package default -- cloud-user)
+CLOUD_USER=

oracle-linux-image-tools/cloud/olvm/provision.sh

@@ -15,15 +15,15 @@
 #
 
 #######################################
-# Provisioning module
+# Configure OVLM instance
 # Globals:
-#   YUM_VERBOSE
+#   None
 # Arguments:
 #   None
 # Returns:
 #   None
 #######################################
-cloud::provision()
+cloud::config()
 {
   echo_message "Setup network"
   # simple eth0 configuration
@@ -37,11 +37,59 @@ cloud::provision()
 	IPV6INIT="no"
 	PERSISTENT_DHCLIENT="1"
 	EOF
+}
 
+#######################################
+# Install QEMU guest agent
+# Globals:
+#   YUM_VERBOSE
+# Arguments:
+#   None
+# Returns:
+#   None
+#######################################
+cloud::install_agent()
+{
   echo_message "Install guest agent"
   yum install -y ${YUM_VERBOSE} qemu-guest-agent
 }
 
+#######################################
+# Install cloud-init, use CLOUD_USER if specified
+# Globals:
+#   YUM_VERBOSE
+# Arguments:
+#   None
+# Returns:
+#   None
+#######################################
+cloud::cloud_init()
+{
+  echo_message "Install cloud-init: ${CLOUD_INIT^^}"
+  if [[ "${CLOUD_INIT,,}" = "yes" ]]; then
+    yum install -y ${YUM_VERBOSE} cloud-init
+    if [[ -n "${CLOUD_USER}" ]]; then
+      sed -i -e "s/\(^\s\+name:\).*/\1 ${CLOUD_USER}/" /etc/cloud/cloud.cfg
+    fi
+  fi
+}
+
+#######################################
+# Provisioning module
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   None
+#######################################
+cloud::provision()
+{
+  cloud::install_agent
+  cloud::cloud_init
+  cloud::config
+}
+
 #######################################
 # Cleanup module
 # Globals:

oracle-linux-image-tools/distr/ol7-slim/provision.sh

@@ -100,7 +100,7 @@ distr::kernel_config() {
 #######################################distr::provision()
 distr::common_cfg() {
   local service tty
-  
+
   # Run yum update if flag is set to yes in image build page
   echo_message "Update image: ${UPDATE_TO_LATEST^^}"
   if [[ "${UPDATE_TO_LATEST,,}" = "yes" ]]; then
@@ -265,8 +265,12 @@ distr::cleanup() {
   [ -e /var/log/ovm-template-config.log ] && rm -f /var/log/ovm-template-config.log
   /bin/rm -f /var/log/audit/audit.log*
   [ -e /var/log/audit/audit.log ] && > /var/log/audit/audit.log
-  # cleanup ssh cache files
-  [ -d /root/.ssh ] && /bin/rm -fr /root/.ssh
+  # cleanup ssh config files
+  if [ -z "${SSH_KEY_FILE}" ]; then
+    [ -d /root/.ssh ] && /bin/rm -fr /root/.ssh
+  else
+    find /root/.ssh -type f -not -name authorized_keys -delete
+  fi
   # cleanup vnc cache files
   if [ -d /root/.vnc ]; then
     /bin/rm -f /root/.vnc/*.log

oracle-linux-image-tools/env.properties

@@ -67,3 +67,9 @@ CLOUD="none"
 
 # OVM Image version (Default: 1.0)
 # IMAGE_VERSION=
+
+# OLVM:
+# Install cloud-init? (Yes/No)
+# CLOUD_INIT="No"
+# cloud-init user
+# CLOUD_USER=