Add Xen config (xend-config.sxp) template

roles/hypervisor/tasks/xen.yml

@@ -24,18 +24,21 @@
     - 'Update GRUB'
   when: with_xen
 
-- name: Configure Xend (memory)
-  lineinfile: dest=/etc/xen/xend-config.sxp regexp="^#?\(dom0-min-mem" line="(dom0-min-mem {{ xendom0_mem }})"
+- name: 'Configure Xend'
+  template: 
+    src: 'xen/xend-config.sxp.j2'
+    dest: '/etc/xen/xend-config.sxp'
+    owner: 'root'
+    group: 'root'
+    mode: '0644'
   when: with_xen
 
-- name: Configure Xend (disable auto-ballooning)
-  lineinfile: dest=/etc/xen/xend-config.sxp regexp="^#?\(enable-dom0-ballooning" line="(enable-dom0-ballooning no)"
-  when: with_xen
-
-- name: Configure Xendomains init script (disable restore)
-  lineinfile: dest=/etc/default/xendomains regexp="^#?XENDOMAINS_RESTORE=" line="XENDOMAINS_RESTORE=false"
-  when: with_xen
-
-- name: Configure Xendomains init script (disable save)
-  lineinfile: dest=/etc/default/xendomains regexp="^#?XENDOMAINS_SAVE=" line="XENDOMAINS_SAVE="
+- name: 'Configure Xendomains init script (disable save and restore)'
+  lineinfile:
+    dest: '/etc/default/xendomains'
+    regexp: '{{ item.regexp }}'
+    line: '{{ item.line }}'
+  with_items:
+    - { regexp: '^#?XENDOMAINS_RESTORE=', line: 'XENDOMAINS_RESTORE=false' }
+    - { regexp: '^#?XENDOMAINS_SAVE=', line: 'XENDOMAINS_SAVE=' }
   when: with_xen

roles/hypervisor/templates/xen/xend-config.sxp.j2

@@ -0,0 +1,306 @@
+# -*- sh -*-
+
+#
+# Xend configuration file.
+#
+
+# This example configuration is appropriate for an installation that 
+# utilizes a bridged network configuration. Access to xend via http
+# is disabled.  
+
+# Commented out entries show the default for that entry, unless otherwise
+# specified.
+
+#(logfile /var/log/xen/xend.log)
+#(loglevel DEBUG)
+
+# Uncomment the line below.  Set the value to flask, acm, or dummy to 
+# select a security module.
+
+#(xsm_module_name dummy)
+
+# The Xen-API server configuration.
+#
+# This value configures the ports, interfaces, and access controls for the
+# Xen-API server.  Each entry in the list starts with either unix, a port
+# number, or an address:port pair.  If this is "unix", then a UDP socket is
+# opened, and this entry applies to that.  If it is a port, then Xend will
+# listen on all interfaces on that TCP port, and if it is an address:port
+# pair, then Xend will listen on the specified port, using the interface with
+# the specified address.
+#
+# The subsequent string configures the user-based access control for the
+# listener in question.  This can be one of "none" or "pam", indicating either
+# that users should be allowed access unconditionally, or that the local
+# Pluggable Authentication Modules configuration should be used.  If this
+# string is missing or empty, then "pam" is used.
+#
+# The final string gives the host-based access control for that listener. If
+# this is missing or empty, then all connections are accepted.  Otherwise,
+# this should be a space-separated sequence of regular expressions; any host
+# with a fully-qualified domain name or an IP address that matches one of
+# these regular expressions will be accepted.
+#
+# Example: listen on TCP port 9363 on all interfaces, accepting connections
+# only from machines in example.com or localhost, and allow access through
+# the unix domain socket unconditionally:
+#
+#   (xen-api-server ((9363 pam '^localhost$ example\\.com$')
+#                    (unix none)))
+#
+# Optionally, the TCP Xen-API server can use SSL by specifying the private
+# key and certificate location:
+#
+#                    (9367 pam '' xen-api.key xen-api.crt)
+#
+# Default:
+#   (xen-api-server ((unix)))
+
+
+#(xend-http-server no)
+#(xend-unix-server no)
+#(xend-tcp-xmlrpc-server no)
+#(xend-unix-xmlrpc-server yes)
+#(xend-relocation-server no)
+#(xend-relocation-ssl-server no)
+#(xend-udev-event-server no)
+
+#(xend-unix-path /var/lib/xend/xend-socket)
+
+
+# Address and port xend should use for the legacy TCP XMLRPC interface, 
+# if xend-tcp-xmlrpc-server is set.
+#(xend-tcp-xmlrpc-server-address 'localhost')
+#(xend-tcp-xmlrpc-server-port 8006)
+
+# SSL key and certificate to use for the legacy TCP XMLRPC interface.
+# Setting these will mean that this port serves only SSL connections as
+# opposed to plaintext ones.
+#(xend-tcp-xmlrpc-server-ssl-key-file  xmlrpc.key)
+#(xend-tcp-xmlrpc-server-ssl-cert-file xmlrpc.crt)
+
+
+# Port xend should use for the HTTP interface, if xend-http-server is set.
+#(xend-port            8000)
+
+# Port xend should use for the relocation interface, if xend-relocation-server
+# is set.
+#(xend-relocation-port 8002)
+
+# Port xend should use for the ssl relocation interface, if
+# xend-relocation-ssl-server is set.
+#(xend-relocation-ssl-port 8003)
+
+# SSL key and certificate to use for the ssl relocation interface, if
+# xend-relocation-ssl-server is set.
+#(xend-relocation-server-ssl-key-file   xmlrpc.key)
+#(xend-relocation-server-ssl-cert-file  xmlrpc.crt)
+
+# Whether to use ssl as default when relocating.
+#(xend-relocation-ssl no)
+
+# Address xend should listen on for HTTP connections, if xend-http-server is
+# set.
+# Specifying 'localhost' prevents remote connections.
+# Specifying the empty string '' (the default) allows all connections.
+#(xend-address '')
+#(xend-address localhost)
+
+# Address xend should listen on for relocation-socket connections, if
+# xend-relocation-server is set.
+# Meaning and default as for xend-address above.
+# Also, interface name is allowed (e.g. eth0) there to get the
+# relocation address to be bound on.
+#(xend-relocation-address '')
+
+# The hosts allowed to talk to the relocation port.  If this is empty (the
+# default), then all connections are allowed (assuming that the connection
+# arrives on a port and interface on which we are listening; see
+# xend-relocation-port and xend-relocation-address above).  Otherwise, this
+# should be a space-separated sequence of regular expressions.  Any host with
+# a fully-qualified domain name or an IP address that matches one of these
+# regular expressions will be accepted.
+#
+# For example:
+#  (xend-relocation-hosts-allow '^localhost$ ^.*\\.example\\.org$')
+#
+#(xend-relocation-hosts-allow '')
+
+# The limit (in kilobytes) on the size of the console buffer
+#(console-limit 1024)
+
+##
+# NOTE:
+# Please read /usr/share/doc/xen-utils-common/README.Debian for Debian specific
+# informations about the network setup.
+
+##
+# To bridge network traffic, like this:
+#
+# dom0: ----------------- bridge -> real eth0 -> the network
+#                            |
+# domU: fake eth0 -> vifN.0 -+
+#
+# use
+#
+# (network-script network-bridge)
+#
+# Your default ethernet device is used as the outgoing interface, by default. 
+# To use a different one (e.g. eth1) use
+#
+# (network-script 'network-bridge netdev=eth1')
+#
+# The bridge is named eth0, by default (yes, really!)
+#
+
+# It is normally much better to create the bridge yourself in
+# /etc/network/interfaces.  network-bridge start does nothing if you
+# already have a bridge, and network-bridge stop does nothing if the
+# default bridge name (normally eth0) is not a bridge.  See
+# bridge-utils-interfaces(5) for full information on the syntax in
+# /etc/network/interfaces, but you probably want something like this:
+#    iface xenbr0 inet static
+#        address [etc]
+#        netmask [etc]
+#        [etc]
+#        bridge_ports eth0
+#
+# To have network-bridge create a differently-named bridge, use:
+# (network-script 'network-bridge bridge=<name>')
+#
+# It is possible to use the network-bridge script in more complicated
+# scenarios, such as having two outgoing interfaces, with two bridges, and
+# two fake interfaces per guest domain.  To do things like this, write
+# yourself a wrapper script, and call network-bridge from it, as appropriate.
+#
+
+# The script used to control virtual interfaces.  This can be overridden on a
+# per-vif basis when creating a domain or a configuring a new vif.  The
+# vif-bridge script is designed for use with the network-bridge script, or
+# similar configurations.
+#
+# If you have overridden the bridge name using
+# (network-script 'network-bridge bridge=<name>') then you may wish to do the
+# same here.  The bridge name can also be set when creating a domain or
+# configuring a new vif, but a value specified here would act as a default.
+#
+# If you are using only one bridge, the vif-bridge script will discover that,
+# so there is no need to specify it explicitly.  The default is to use
+# the bridge which is listed first in the output from brctl.
+#
+(vif-script vif-bridge)
+
+
+## Use the following if network traffic is routed, as an alternative to the
+# settings for bridged networking given above.
+#(network-script network-route)
+#(vif-script     vif-route)
+
+
+## Use the following if network traffic is routed with NAT, as an alternative
+# to the settings for bridged networking given above.
+#(network-script network-nat)
+#(vif-script     vif-nat)
+
+# dom0-min-mem is the lowest permissible memory level (in MB) for dom0.
+# This is a minimum both for auto-ballooning (as enabled by
+# enable-dom0-ballooning below) and for xm mem-set when applied to dom0.
+(dom0-min-mem {{ xendom0_mem }})
+
+# Whether to enable auto-ballooning of dom0 to allow domUs to be created.
+# If enable-dom0-ballooning = no, dom0 will never balloon out.
+(enable-dom0-ballooning no)
+
+# 32-bit paravirtual domains can only consume physical
+# memory below 168GB. On systems with memory beyond that address,
+# they'll be confined to memory below 128GB.
+# Using total_available_memory (in GB) to specify the amount of memory reserved
+# in the memory pool exclusively for 32-bit paravirtual domains.
+# Additionally you should use dom0_mem = <-Value> as a parameter in 
+# xen kernel to reserve the memory for 32-bit paravirtual domains, default 
+# is "0" (0GB).  
+(total_available_memory 0) 
+
+# In SMP system, dom0 will use dom0-cpus # of CPUS
+# If dom0-cpus = 0, dom0 will take all cpus available
+(dom0-cpus 0)
+
+# Whether to enable core-dumps when domains crash.
+#(enable-dump no)
+
+# The tool used for initiating virtual TPM migration
+#(external-migration-tool '')
+
+# The interface for VNC servers to listen on. Defaults
+# to 127.0.0.1  To restore old 'listen everywhere' behaviour
+# set this to 0.0.0.0
+#(vnc-listen '127.0.0.1')
+
+# The default password for VNC console on HVM domain.
+# Empty string is no authentication.
+(vncpasswd '')
+
+# The VNC server can be told to negotiate a TLS session
+# to encryption all traffic, and provide x509 cert to
+# clients enabling them to verify server identity. The
+# GTK-VNC widget, virt-viewer, virt-manager and VeNCrypt
+# all support the VNC extension for TLS used in QEMU. The
+# TightVNC/RealVNC/UltraVNC clients do not.
+#
+# To enable this create x509 certificates / keys in the
+# directory ${XEN_CONFIG_DIR} + vnc
+#
+#  ca-cert.pem       - The CA certificate
+#  server-cert.pem   - The Server certificate signed by the CA
+#  server-key.pem    - The server private key
+#
+# and then uncomment this next line
+# (vnc-tls 1)
+
+# The certificate dir can be pointed elsewhere..
+#
+# (vnc-x509-cert-dir vnc)
+
+# The server can be told to request & validate an x509
+# certificate from the client. Only clients with a cert
+# signed by the trusted CA will be able to connect. This
+# is more secure the password auth alone. Passwd auth can
+# used at the same time if desired. To enable client cert
+# checking uncomment this:
+#
+# (vnc-x509-verify 1)
+
+# The default keymap to use for the VM's virtual keyboard
+# when not specififed in VM's configuration
+#(keymap 'en-us')
+
+# Script to run when the label of a resource has changed.
+#(resource-label-change-script '')
+
+# Rotation count of qemu-dm log file.
+#(qemu-dm-logrotate-count 10)
+
+# Path where persistent domain configuration is stored.
+# Default is /var/lib/xend/domains/
+#(xend-domains-path /var/lib/xend/domains)
+
+# Number of seconds xend will wait for device creation and
+# destruction
+#(device-create-timeout 100)
+#(device-destroy-timeout 100)
+
+# When assigning device to HVM guest, we use the strict check for HVM guest by
+# default. (For PV guest, we use loose check automatically if necessary.)
+# When we assign device to HVM guest, if we meet with the co-assignment
+# issues or the ACS issue, we could try changing the option to 'no' -- however,
+# we have to realize this may incur security issue and we can't make sure the
+# device assignment could really work properly even after we do this.
+#(pci-passthrough-strict-check yes)
+
+# If we have a very big scsi device configuration, start of xend is slow,
+# because xend scans all the device paths to build its internal PSCSI device
+# list.  If we need only a few devices for assigning to a guest, we can reduce
+# the scan to this device. Set list list of device paths in same syntax like in
+# command lsscsi, e.g. ('16:0:0:0' '15:0') 
+# (pscsi-device-mask ('*'))
+