ceilometer获取数据暂时先不做解答，本篇注重websocket解决浏览器与openstack组件之间的实时状态更新。
大致流程如下：
nginx配置的反向代理如下：
/etc/nginx/nginx.conf
include /etc/nginx/conf.d/*.conf;
/etc/nginx/conf.d/openstack.conf
upstream websocket_beijing { server 192.168.213.88:4500; } server { listen 81; #server_name horizon.plcloud.com; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; location / { include uwsgi_params; uwsgi_pass unix:/var/run/uwsgi/openstack.sock; } location /static/{ alias /home/zzw/develop/horizon/static/; } } server { listen 4600; location / { proxy_pass http://websocket_beijing; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; } }
日志说明：
/var/log/nginx/access.log #nginx访问日志
/var/log/nginx/error.log #nginx错误日志
uwsgi配置：
websocket.ini -> /home/zzw/develop/ceilometer/etc/ceilometer/websocket.ini
/etc/uwsgi/vassals/openstack.ini
# awcloud horizon uwsgi config file [uwsgi] # Django-related settings # the virtualenv (full path) # home = /var/plcloud/horizon/.venv # the base directory (full path) chdir = /home/zzw/develop/horizon/openstack_dashboard/wsgi # Django's wsgi file file = django.wsgi # maximum number of worker processes processes = 4 # the socket (use the full path to be safe socket = /var/run/uwsgi/%n.sock # with appropriate permissions - may be needed chmod-socket = 777 daemonize = /var/log/uwsgi/%n.log
日志说明：
/var/log/uwsgi/openstack.log
/var/log/uwsgi/websocket.log
redis配置订阅模式：
/etc/redis.conf
daemonize yes pidfile /var/run/redis/redis.pid port 6379 tcp-backlog 511 bind 0.0.0.0 timeout 0 tcp-keepalive 0 loglevel notice logfile /var/log/redis/redis.log databases 16 save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb dir /var/lib/redis/ slave-serve-stale-data yes slave-read-only yes repl-disable-tcp-nodelay no slave-priority 100 appendonly no appendfilename "appendonly.aof" appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb lua-time-limit 5000 slowlog-log-slower-than 10000 slowlog-max-len 128 notify-keyspace-events "" hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-entries 512 list-max-ziplist-value 64 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 hll-sparse-max-bytes 3000 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes
日志说明：
/var/log/redis/redis.log
ceilometer配置：
├── ceilometer.conf
├── ceilometertab.ini
├── matchmaker_ring.json
├── pipeline.yaml
├── policy.json
├── sources.json
└── templates
├── default.html
└── default.sms
日志说明：
├── agent-notification.log ├── alarm-evaluator.log ├── alarm-notifier.log ├── api.log ├── auditor.log ├── central.log ├── checker.log ├── collector.log ├── compute.log ├── websocket.log └── zmq-receiver.log
配置过程报错集锦：
1. uwsgi缺少对openssl支持，/var/log/uwsgi/websocket.log 报错如下：
[pid: 23996|app: 0|req: 8/8] 192.168.216.48 () {48 vars in 983 bytes} [Thu Apr 23 13:21:07 2015] GET /websocket?uid=33d5edff940f4812b5368e54499991e4®ion=lab-test => generated 0 bytes in 1 msecs (HTTP/1.1 500) 0 headers in 0 bytes (1 switches on core 9999) you need to build uWSGI with SSL support to use the websocket handshake api function !!!
解决方法：重新编译uwsgi，支持openssl
cd uwsgi-2.0.4/ make stop uwsgi python setup.py install start uwsgi