OpenStack/Essex Configuration 04:Glance

CentOS6.2上でOpenStack Essexを動かす。
全コンポーネントを連携させることが目標。

- OpenStack/Essex Configuration 01:DB, Queue
- OpenStack/Essex Configuration 02:KeyStone
- OpenStack/Essex Configuration 03:Swift
- OpenStack/Essex Configuration 04:Glance
- OpenStack/Essex Configuration 05:Nova
- OpenStack/Essex Configuration 06:Horizon

OpenStack/Essex RPMs
- OpenStack/Essex RPM Nova/Horizon
- OpenStack/Essex RPM Swift/Keystone/Glance

パッケージの導入

[root@opst-gl ~]# yum install openstack-glance.noarch
[root@opst-gl ~]# yum install openstack-swift-client
[root@opst-gl ~]# yum install openstack-keystone
[root@opst-gl ~]# yum install MySQL-python

swift連携する場合、swift-clientが必要になる。
またkeystone連携のためにopenstack-keystone

glance-api.conf

[glance@opst-gl glance]$ cp glance-api.conf.sample glance-api.conf

[DEFAULT]
# Show more verbose log output (sets INFO log level output)
verbose = True

# Show debugging output in logs (sets DEBUG log level output)
debug = True

# Which backend store should Glance use by default is not specified
# in a request to add a new image to Glance? Default: 'file'
# Available choices are 'file', 'swift', and 's3'
#default_store = file
default_store = swift

# Address to bind the API server
bind_host = 0.0.0.0

# Port the bind the API server to
bind_port = 9292

# Log to this file. Make sure you do not set the same log
# file for both the API and registry servers!
log_file = /var/log/glance/api.log

# Backlog requests when creating socket
backlog = 4096

# Number of Glance API worker processes to start.
# On machines with more than one CPU increasing this value
# may improve performance (especially if using SSL with
# compression turned on). It is typically recommended to set
# this value to the number of CPUs present on your machine.
workers = 0

# Role used to identify an authenticated user as administrator
#admin_role = admin

# ================= Syslog Options ============================

# Send logs to syslog (/dev/log) instead of to file specified
# by `log_file`
use_syslog = False

# Facility to use. If unset defaults to LOG_USER.
# syslog_log_facility = LOG_LOCAL0

# ================= SSL Options ===============================

# Certificate file to use when starting API server securely
# cert_file = /path/to/certfile

# Private key file to use when starting API server securely
# key_file = /path/to/keyfile

# ================= Security Options ==========================

# AES key for encrypting store 'location' metadata, including
# -- if used -- Swift or S3 credentials
# Should be set to a random string of length 16, 24 or 32 bytes
# metadata_encryption_key = <16, 24 or 32 char registry metadata key>

# ============ Registry Options ===============================

# Address to find the registry server
registry_host = 0.0.0.0
#registry_host = 192.168.128.120

# Port the registry server is listening on
registry_port = 9191

# What protocol to use when connecting to the registry server?
# Set to https for secure HTTP communication
registry_client_protocol = http

# The path to the key file to use in SSL connections to the
# registry server, if any. Alternately, you may set the
# GLANCE_CLIENT_KEY_FILE environ variable to a filepath of the key file
# registry_client_key_file = /path/to/key/file

# The path to the cert file to use in SSL connections to the
# registry server, if any. Alternately, you may set the
# GLANCE_CLIENT_CERT_FILE environ variable to a filepath of the cert file
# registry_client_cert_file = /path/to/cert/file

# The path to the certifying authority cert file to use in SSL connections
# to the registry server, if any. Alternately, you may set the
# GLANCE_CLIENT_CA_FILE environ variable to a filepath of the CA cert file
# registry_client_ca_file = /path/to/ca/file

# ============ Notification System Options =====================

# Notifications can be sent when images are create, updated or deleted.
# There are three methods of sending notifications, logging (via the
# log_file directive), rabbit (via a rabbitmq queue), qpid (via a Qpid
# message queue), or noop (no notifications sent, the default)
notifier_strategy = noop

# Configuration options if sending notifications via rabbitmq (these are
# the defaults)
#rabbit_host = localhost
#rabbit_port = 5672
#rabbit_use_ssl = false
#rabbit_userid = guest
#rabbit_password = guest
#rabbit_virtual_host = /
#rabbit_notification_exchange = glance
#rabbit_notification_topic = glance_notifications

# Configuration options if sending notifications via Qpid (these are
# the defaults)
qpid_notification_exchange = glance
qpid_notification_topic = glance_notifications
qpid_host = 192.168.128.100
qpid_port = 5672
qpid_username = glance-que
qpid_password = glance-que
qpid_sasl_mechanisms =
qpid_reconnect_timeout = 0
qpid_reconnect_limit = 0
qpid_reconnect_interval_min = 0
qpid_reconnect_interval_max = 0
qpid_reconnect_interval = 0
qpid_heartbeat = 5
# Set to 'ssl' to enable SSL
qpid_protocol = tcp
qpid_tcp_nodelay = True

# ============ Filesystem Store Options ========================

# Directory that the Filesystem backend store
# writes image data to
filesystem_store_datadir = /var/lib/glance/images/

# ============ Swift Store Options =============================

# Version of the authentication service to use
# Valid versions are '2' for keystone and '1' for swauth and rackspace
swift_store_auth_version = 2

# Address where the Swift authentication service lives
# Valid schemes are 'http://' and 'https://'
# If no scheme specified,  default to 'https://'
# For swauth, use something like '127.0.0.1:8080/v1.0/'
swift_store_auth_address = http://192.168.128.110:35357/v2.0/

# User to authenticate against the Swift authentication service
# If you use Swift authentication service, set it to 'account':'user'
# where 'account' is a Swift storage account and 'user'
# is a user in that account
swift_store_user = service01:glance

# Auth key for the user authenticating against the
# Swift authentication service
swift_store_key = glance

# Container within the account that the account should use
# for storing images in Swift
swift_store_container = glance

# Do we create the container if it does not exist?
swift_store_create_container_on_put = True

# What size, in MB, should Glance start chunking image files
# and do a large object manifest in Swift? By default, this is
# the maximum object size in Swift, which is 5GB
swift_store_large_object_size = 5120

# When doing a large object manifest, what size, in MB, should
# Glance write chunks to Swift? This amount of data is written
# to a temporary disk buffer during the process of chunking
# the image file, and the default is 200MB
swift_store_large_object_chunk_size = 200

# Whether to use ServiceNET to communicate with the Swift storage servers.
# (If you aren't RACKSPACE, leave this False!)
#
# To use ServiceNET for authentication, prefix hostname of
# `swift_store_auth_address` with 'snet-'.
# Ex. https://example.com/v1.0/ -> https://snet-example.com/v1.0/
swift_enable_snet = False

# ============ S3 Store Options =============================

# Address where the S3 authentication service lives
# Valid schemes are 'http://' and 'https://'
# If no scheme specified,  default to 'http://'
s3_store_host = 127.0.0.1:8080/v1.0/

# User to authenticate against the S3 authentication service
s3_store_access_key = <20-char AWS access key>

# Auth key for the user authenticating against the
# S3 authentication service
s3_store_secret_key = <40-char AWS secret key>

# Container within the account that the account should use
# for storing images in S3. Note that S3 has a flat namespace,
# so you need a unique bucket name for your glance images. An
# easy way to do this is append your AWS access key to "glance".
# S3 buckets in AWS *must* be lowercased, so remember to lowercase
# your AWS access key if you use it in your bucket name below!
s3_store_bucket = <lowercased 20-char aws access key>glance

# Do we create the bucket if it does not exist?
s3_store_create_bucket_on_put = False

# When sending images to S3, the data will first be written to a
# temporary buffer on disk. By default the platform's temporary directory
# will be used. If required, an alternative directory can be specified here.
# s3_store_object_buffer_dir = /path/to/dir

# ============ RBD Store Options =============================

# Ceph configuration file path
# If using cephx authentication, this file should
# include a reference to the right keyring
# in a client.<USER> section
rbd_store_ceph_conf = /etc/ceph/ceph.conf

# RADOS user to authenticate as (only applicable if using cephx)
rbd_store_user = glance

# RADOS pool in which images are stored
rbd_store_pool = images

# Images will be chunked into objects of this size (in megabytes).
# For best performance, this should be a power of two
rbd_store_chunk_size = 8

# ============ Delayed Delete Options =============================

# Turn on/off delayed delete
delayed_delete = False

# Delayed delete time in seconds
scrub_time = 43200

# Directory that the scrubber will use to remind itself of what to delete
# Make sure this is also set in glance-scrubber.conf
scrubber_datadir = /var/lib/glance/scrubber

# =============== Image Cache Options =============================

# Base directory that the Image Cache uses
image_cache_dir = /var/lib/glance/image-cache/

[paste_deploy]
flavor = keystone

glance-api-paste.ini

[glance@opst-gl glance]$ cp glance-api-paste.ini.sample glance-api-paste.ini

# Default minimal pipeline
[pipeline:glance-api]
pipeline = versionnegotiation context apiv1app

# Use the following pipeline for keystone auth
# i.e. in glance-api.conf:
#   [paste_deploy]
#   flavor = keystone
#
[pipeline:glance-api-keystone]
pipeline = versionnegotiation authtoken context apiv1app

# Use the following pipeline to enable transparent caching of image files
# i.e. in glance-api.conf:
#   [paste_deploy]
#   flavor = caching
#
[pipeline:glance-api-caching]
pipeline = versionnegotiation context cache apiv1app

# Use the following pipeline for keystone auth with caching
# i.e. in glance-api.conf:
#   [paste_deploy]
#   flavor = keystone+caching
#
[pipeline:glance-api-keystone+caching]
pipeline = versionnegotiation authtoken context cache apiv1app

# Use the following pipeline to enable the Image Cache Management API
# i.e. in glance-api.conf:
#   [paste_deploy]
#   flavor = cachemanagement
#
[pipeline:glance-api-cachemanagement]
pipeline = versionnegotiation context cache cachemanage apiv1app

# Use the following pipeline for keystone auth with cache management
# i.e. in glance-api.conf:
#   [paste_deploy]
#   flavor = keystone+cachemanagement
#
[pipeline:glance-api-keystone+cachemanagement]
pipeline = versionnegotiation authtoken context cache cachemanage apiv1app

[app:apiv1app]
paste.app_factory = glance.common.wsgi:app_factory
glance.app_factory = glance.api.v1.router:API

[filter:versionnegotiation]
paste.filter_factory = glance.common.wsgi:filter_factory
glance.filter_factory = glance.api.middleware.version_negotiation:VersionNegotiationFilter

[filter:cache]
paste.filter_factory = glance.common.wsgi:filter_factory
glance.filter_factory = glance.api.middleware.cache:CacheFilter

[filter:cachemanage]
paste.filter_factory = glance.common.wsgi:filter_factory
glance.filter_factory = glance.api.middleware.cache_manage:CacheManageFilter

[filter:context]
paste.filter_factory = glance.common.wsgi:filter_factory
glance.filter_factory = glance.common.context:ContextMiddleware

[filter:authtoken]
paste.filter_factory = keystone.middleware.auth_token:filter_factory
service_protocol = http
service_host = 192.168.128.110
service_port = 5000
auth_host = 192.168.128.110
auth_port = 35357
auth_protocol = http
auth_uri = http://192.168.128.110:5000/
admin_tenant_name = service01
admin_user = glance
admin_password = glance

glance-registry.conf

[glance@opst-gl glance]$ cp glance-registry.conf.sample glance-registry.conf

[DEFAULT]
# Show more verbose log output (sets INFO log level output)
verbose = True

# Show debugging output in logs (sets DEBUG log level output)
debug = True

# Address to bind the registry server
bind_host = 0.0.0.0

# Port the bind the registry server to
bind_port = 9191

# Log to this file. Make sure you do not set the same log
# file for both the API and registry servers!
log_file = /var/log/glance/registry.log

# Backlog requests when creating socket
backlog = 4096

# SQLAlchemy connection string for the reference implementation
# registry server. Any valid SQLAlchemy connection string is fine.
# See: http://www.sqlalchemy.org/docs/05/reference/sqlalchemy/connections.html#sqlalchemy.create_engine
#sql_connection = sqlite:///glance.sqlite
sql_connection = mysql://glance:db-glance-pass@192.168.128.100/glance

# Period in seconds after which SQLAlchemy should reestablish its connection
# to the database.
#
# MySQL uses a default `wait_timeout` of 8 hours, after which it will drop
# idle connections. This can result in 'MySQL Gone Away' exceptions. If you
# notice this, you can lower this value to ensure that SQLAlchemy reconnects
# before MySQL can drop the connection.
sql_idle_timeout = 3600

# Limit the api to return `param_limit_max` items in a call to a container. If
# a larger `limit` query param is provided, it will be reduced to this value.
api_limit_max = 1000

# If a `limit` query param is not provided in an api request, it will
# default to `limit_param_default`
limit_param_default = 25

# Role used to identify an authenticated user as administrator
#admin_role = admin

# ================= Syslog Options ============================

# Send logs to syslog (/dev/log) instead of to file specified
# by `log_file`
use_syslog = False

# Facility to use. If unset defaults to LOG_USER.
# syslog_log_facility = LOG_LOCAL1

# ================= SSL Options ===============================

# Certificate file to use when starting registry server securely
# cert_file = /path/to/certfile

# Private key file to use when starting registry server securely
# key_file = /path/to/keyfile
#


[paste_deploy]
flavor = keystone

glance-registry-paste.ini

[glance@opst-gl glance]$ cp glance-registry-paste.ini.sample glance-registry-paste.ini

# Default minimal pipeline
[pipeline:glance-registry]
pipeline = context registryapp

# Use the following pipeline for keystone auth
# i.e. in glance-registry.conf:
#   [paste_deploy]
#   flavor = keystone
#
[pipeline:glance-registry-keystone]
pipeline = authtoken context registryapp

[app:registryapp]
paste.app_factory = glance.common.wsgi:app_factory
glance.app_factory = glance.registry.api.v1:API

[filter:context]
context_class = glance.registry.context.RequestContext
paste.filter_factory = glance.common.wsgi:filter_factory
glance.filter_factory = glance.common.context:ContextMiddleware

[filter:authtoken]
paste.filter_factory = keystone.middleware.auth_token:filter_factory
service_protocol = http
service_host = 192.168.128.110
service_port = 5000
auth_host = 192.168.128.110
auth_port = 35357
auth_protocol = http
auth_uri = http://192.168.128.110:5000/
admin_tenant_name = service01
admin_user = glance
admin_password = glance

その他

以下はコピーするだけで、特に編集せず。
[glance@opst-gl glance]$ cp glance-cache.conf.sample glance-cache.conf
[glance@opst-gl glance]$ cp glance-cache-paste.ini.sample glance-cache-paste.ini
[glance@opst-gl glance]$ cp glance-scrubber.conf.sample glance-scrubber.conf
[glance@opst-gl glance]$ cp glance-scrubber-paste.ini.sample glance-scrubber-paste.ini

起動

[glance@opst-gl glance]$ glance-api &
[glance@opst-gl glance]$ glance-registry &

便利スクリプト

glanceコマンドはadminユーザのトークンを必要とするので、簡単に取得するスクリプトを準備しておく。

[glance@opst-gl ~]$ cat get_token.sh

#!/bin/bash
ADMIN_USER=admin
ADMIN_TENANT=admin
ADMIN_PASSWORD=admin
HOST_IP=192.168.128.110
TOKEN=`curl -s -d  "{\"auth\":{\"passwordCredentials\": {\"username\": \"$ADMIN_USER\", \"password\": \"$ADMIN_PASSWORD\"}, \"tenantName\": \"$ADMIN_TENANT\"}}" -H "Content-type: application/json" http://$HOST_IP:5000/v2.0/tokens | python -c "import sys; import json; tok = json.loads(sys.stdin.read()); print tok['access']['token']['id'];"`
echo $TOKEN

[glance@opst-gl ~]$ ./get_token.sh

eae874e2d34042928c1bd3da7f48d5c2

イメージの投入

devstackのスクリプトを流用して利用する。

[glance@opst-gl ~]$ cat add_image.sh

#!/bin/bash

FILES=`pwd`
LIBVIRT_TYPE=${LIBVIRT_TYPE:-kvm}

mkdir -p $FILES/images

# get TOKEN
source get_token.sh

# set image url
image_url="http://launchpad.net/cirros/trunk/0.3.0/+download/cirros-0.3.0-x86_64-uec.tar.gz"
IMAGE_FNAME=`basename "$image_url"`
if [ ! -f $FILES/$IMAGE_FNAME ]; then
    wget -c $image_url -O $FILES/$IMAGE_FNAME
fi

[ "${IMAGE_FNAME%.tar.gz}" != "$IMAGE_FNAME" ] &&
    IMAGE_NAME="${IMAGE_FNAME%.tar.gz}" ||
    IMAGE_NAME="${IMAGE_FNAME%.tgz}"
xdir="$FILES/images/$IMAGE_NAME"
rm -Rf "$xdir";
mkdir "$xdir"
tar -zxf $FILES/$IMAGE_FNAME -C "$xdir"
KERNEL=$(for f in "$xdir/"*-vmlinuz*; do
[ -f "$f" ] && echo "$f" && break; done; true)
RAMDISK=$(for f in "$xdir/"*-initrd*; do
[ -f "$f" ] && echo "$f" && break; done; true)
IMAGE=$(for f in "$xdir/"*.img; do
[ -f "$f" ] && echo "$f" && break; done; true)
[ -n "$IMAGE_NAME" ]
IMAGE_NAME=$(basename "$IMAGE" ".img")


# add KERNEL IMAGE
#
RVAL=`glance add --silent-upload -A $TOKEN name="$IMAGE_NAME-kernel" is_public=true container_format=aki disk_format=aki < "$KERNEL"`
KERNEL_ID=`echo $RVAL | cut -d":" -f2 | tr -d " "`

#
# add RAMDISK IMAGE
#
RVAL=`glance add --silent-upload -A $TOKEN name="$IMAGE_NAME-ramdisk" is_public=true container_format=ari disk_format=ari < "$RAMDISK"`
RAMDISK_ID=`echo $RVAL | cut -d":" -f2 | tr -d " "`

#
# add IMAGE
#
glance add -A $TOKEN name="${IMAGE_NAME%.img}" is_public=true container_format=ami disk_format=ami ${KERNEL_ID:+kernel_id=$KERNEL_ID} ${RAMDISK_ID:+ramdisk_id=$RAMDISK_ID} < <(zcat --force "${IMAGE}")

[glance@opst-gl ~]$ ./add_image.sh

確認

[glance@opst-gl ~]$ glance -A `./get_token.sh` index

ID                                   Name                           Disk Format          Container Format     Size
------------------------------------ ------------------------------ -------------------- -------------------- --------------
e18e5589-3dc6-428e-a5aa-b2e994f33730 cirros-0.3.0-x86_64-blank      ami                  ami                        25165824
31260fa0-574c-43b4-be68-5e6956d5a304 cirros-0.3.0-x86_64-blank-ramd ari                  ari                         2254249
e3ffec92-7930-4838-86f6-c199158472ef cirros-0.3.0-x86_64-blank-kern aki                  aki                         4731440

[glance@opst-gl ~]$ glance -A `./get_token.sh` show e18e5589-3dc6-428e-a5aa-b2e994f33730

URI: http://0.0.0.0:9292/v1/images/e18e5589-3dc6-428e-a5aa-b2e994f33730
Id: e18e5589-3dc6-428e-a5aa-b2e994f33730
Public: Yes
Protected: No
Name: cirros-0.3.0-x86_64-blank
Status: active
Size: 25165824
Disk format: ami
Container format: ami
Minimum Ram Required (MB): 0
Minimum Disk Required (GB): 0
Owner: e3f5826b96f74985b5ad673de64e0afd
Property 'kernel_id': e3ffec92-7930-4838-86f6-c199158472ef
Property 'ramdisk_id': 31260fa0-574c-43b4-be68-5e6956d5a304