Ansible-playbook roles用docker容器安裝redis主從(學習筆記三十一)

docker版本

09:49:09?#?docker?version

Client?version:?0.11.1

Client?API?version:?1.11

Go?version?(client):?go1.2.1

Git?commit?(client):?fb99f99/0.11.1

Server?version:?0.11.1

Server?API?version:?1.11

Git?commit?(server):?fb99f99/0.11.1

Go?version?(server):?go1.2.1

Last?stable?version:?1.1.2,?please?update?docker

ansible版本

09:51:55?#?ansible?--version

ansible?1.4.3

1塞绿、查看已有的docker鏡像

09:39:26?#?docker?images

REPOSITORY??????????TAG?????????????????IMAGE?ID????????????CREATED?????????????VIRTUAL?SIZE

ubuntu??????????????3.0?????????????????6cee55276528????????9?weeks?ago?????????369.8?MB

centos5?????????????3.0?????????????????e08d23b09189????????9?weeks?ago?????????840.9?MB

centos6?????????????3.0?????????????????e94a3b24a19b????????9?weeks?ago?????????415.9?MB

2碎赢、查看當前運行的docker容器

09:39:47?#?docker?ps?-a

CONTAINER?ID????????IMAGE???????????????COMMAND?????????????CREATED?????????????STATUS??????????????PORTS???????????????????NAMES

846efb9e4d7a????????ubuntu:3.0??????????/usr/sbin/sshd-D???2?weeks?ago?????????Up?6?days???????????0.0.0.0:49167->22/tcpubuntu-test1????????

b9a9e6f2caed????????centos6:3.0?????????/usr/sbin/sshd-D???3?weeks?ago?????????Up?6?days???????????0.0.0.0:49166->22/tcpzabbix-server???????

978fff134b18????????centos6:3.0?????????/usr/sbin/sshd-D???5?weeks?ago?????????Up?6?days???????????0.0.0.0:49165->22/tcpcentos6-test5???????

root@ip-10-10-10-10:/etc/ansible/roles/redis_install/templates

3、加載測試容器

由于是做redis主從，所以需要2個容器

09:39:50?#?time??docker?inspect?$(docker?run?-d?-p?22??--name="redis-master"?centos6:3.0?/usr/sbin/sshd?-D)|grep?-i?address|awk?-F?'"'?'{print?$4}'

172.17.0.5

real??? 0m6.369s

user??? 0m0.036s

sys 0m0.049s

root@ip-10-10-10-10:/etc/ansible/roles/redis_install/templates

09:40:25?#?time??docker?inspect?$(docker?run?-d?-p?22??--name="redis-slave"?centos6:3.0?/usr/sbin/sshd?-D)|grep?-i?address|awk?-F?'"'?'{print?$4}'

172.17.0.6

real??? 0m12.567s

user??? 0m0.047s

sys 0m0.060s

然后把新容器的ip加入到ansible的hosts里

root@ip-10-10-10-10:/etc/ansible/roles/redis_install/templates

09:40:46?#?echo?"172.17.0.5">>/etc/ansible/hosts

root@ip-10-10-10-10:/etc/ansible/roles/redis_install/templates

09:40:58?#?echo?"172.17.0.6">>/etc/ansible/hosts

root@ip-10-10-10-10:/etc/ansible/roles/redis_install/templates

4骇径、ansible安裝redis的信息

09:52:11?#?cat?/etc/ansible/roles/redis_install/vars/main.yml?

redis_dir:?/data

redis_version:?2.6.17

redis_port:?6379

redis_conf_dir:?/data/redis-2.6.17/conf

redis_db_dir:?/data/redis-2.6.17/db

redis_log_dir:?/data/redis-2.6.17/log

5、下面是redis的playbook結構

09:55:12?#?tree?/etc/ansible/roles/redis_install?/etc/ansible/roles/redis_delete

/etc/ansible/roles/redis_install

├──?files

│???└──?redis-2.6.17.tar.gz

├──?handlers

├──?meta

│???└──?main.yml

├──?tasks

│???├──?copy.yml

│???├──?delete.yml

│???├──?install.yml

│???└──?main.yml

├──?templates

│???└──?redis.conf

└──?vars

????└──?main.yml

/etc/ansible/roles/redis_delete

├──?files

├──?handlers

├──?meta

│???└──?main.yml

├──?tasks

│???├──?delete.yml

│???└──?main.yml

├──?templates

│???└──?delete_redis.sh

└──?vars

????└──?main.yml

12?directories,?13?files

6、playbook安裝redis的內容是

09:57:09?#?cat?redis_install.yml?

---

-?hosts:?"`host`"

??remote_user:?"`user`"

??gather_facts:?True

??roles:

????-?common

????-?redis_install

7、playbook刪除redis的內容是

09:57:31?#?cat?redis_delete.yml?

---

-?hosts:?"`host`"

??remote_user:?"`user`"

??gather_facts:?True

??roles:

????-?redis_delete

下面是安裝redis主從

8射沟、安裝redis master

09:43:11?#?time?ansible-playbook?redis_install.yml?--extra-vars?"host=172.17.0.5?user=root"?-k

SSH?password:?

PLAY?[172.17.0.5]?*************************************************************?

GATHERING?FACTS?***************************************************************?

ok:?[172.17.0.5]

TASK:?[common?|?Install?initializtion?require?software]?***********************?

changed:?[172.17.0.5]

TASK:?[redis_install?|?Copy?Redis?Software?To?Redhat?Client]?******************?

ok:?[172.17.0.5]

TASK:?[redis_install?|?Create?Redis?Install?Dir]?******************************?

ok:?[172.17.0.5]

TASK:?[redis_install?|?Uncompression?Redis?Software?To?Redhat?Client]?*********?

changed:?[172.17.0.5]

TASK:?[redis_install?|?Copy?Redis?Config?To?Redhat?Client]?********************?

changed:?[172.17.0.5]

TASK:?[redis_install?|?Create?Soft?Link?In?Redhat?Client]?*********************?

changed:?[172.17.0.5]?=>?(item=redis-cli)

changed:?[172.17.0.5]?=>?(item=redis-server)

TASK:?[redis_install?|?Check?Boot?Start?In?Redhat?Client]?*********************?

failed:?[172.17.0.5]?=>?{"changed":?true,?"cmd":?"grep?-c?'/usr/bin/redis-server?/data/redis-2.6.17/conf/redis_6379.conf'?/etc/rc.local?",?"delta":?"0:00:00.007160",?"end":?"2014-08-13?09:45:18.660617",?"item":?"",?"rc":?1,?"start":?"2014-08-13?09:45:18.653457"}

stdout:?0

...ignoring

TASK:?[redis_install?|?Add?Boot?Start?In?Redhat?Client]?***********************?

changed:?[172.17.0.5]

TASK:?[redis_install?|?Start?Redis?Service?In?Redhat?Client]?******************?

changed:?[172.17.0.5]

TASK:?[redis_install?|?Delete?Redis?compression?Software?In?Redhat?Client]?****?

changed:?[172.17.0.5]

PLAY?RECAP?********************************************************************?

172.17.0.5?????????????????:?ok=11???changed=8????unreachable=0????failed=0? ?

real??? 0m12.757s

user??? 0m3.453s

sys 0m0.497s

9殊者、查看redis master安裝情況

09:48:39?#?ssh?172.17.0.5

root@172.17.0.5's?password:?

Last?login:?Wed?Aug?13?09:45:28?2014?from?172.17.42.1

root@06762530db8c:~

09:48:43?#?ps?-ef|grep?redis

root???????294?????1??0?09:45??????????00:00:00?/usr/bin/redis-server/data/redis-2.6.17/conf/redis_6379.conf

root???????343???329??0?09:48?pts/000:00:00?grepredis

root@06762530db8c:~

09:48:46?#?cat?/etc/rc.local?

#!/bin/sh

#?This?script?will?be?executed?*after*?all?the?other?init?scripts.

#?You?can?put?your?own?initialization?stuff?in?here?if?you?don't

#?want?to?do?the?full?Sys?V?style?init?stuff.

touch/var/lock/subsys/local

/usr/bin/redis-server/data/redis-2.6.17/conf/redis_6379.conf

root@06762530db8c:~

09:48:52?#?redis-cli?-h?172.17.0.5?-p?6379

redis?172.17.0.5:6379>?keys?*

(empty?list?or?set)

redis?172.17.0.5:6379>

10、安裝redis slave

09:45:20?#?time?ansible-playbook?redis_install.yml?--extra-vars?"host=172.17.0.6?user=root?redis_master_ip=172.17.0.5?redis_master_port=6379"?-k

SSH?password:?

PLAY?[172.17.0.6]?*************************************************************?

GATHERING?FACTS?***************************************************************?

ok:?[172.17.0.6]

TASK:?[common?|?Install?initializtion?require?software]?***********************?

changed:?[172.17.0.6]

TASK:?[redis_install?|?Copy?Redis?Software?To?Redhat?Client]?******************?

changed:?[172.17.0.6]

TASK:?[redis_install?|?Create?Redis?Install?Dir]?******************************?

ok:?[172.17.0.6]

TASK:?[redis_install?|?Uncompression?Redis?Software?To?Redhat?Client]?*********?

changed:?[172.17.0.6]

TASK:?[redis_install?|?Copy?Redis?Config?To?Redhat?Client]?********************?

changed:?[172.17.0.6]

TASK:?[redis_install?|?Create?Soft?Link?In?Redhat?Client]?*********************?

changed:?[172.17.0.6]?=>?(item=redis-cli)

changed:?[172.17.0.6]?=>?(item=redis-server)

TASK:?[redis_install?|?Check?Boot?Start?In?Redhat?Client]?*********************?

failed:?[172.17.0.6]?=>?{"changed":?true,?"cmd":?"grep?-c?'/usr/bin/redis-server?/data/redis-2.6.17/conf/redis_6379.conf'?/etc/rc.local?",?"delta":?"0:00:00.006751",?"end":?"2014-08-13?09:49:07.569522",?"item":?"",?"rc":?1,?"start":?"2014-08-13?09:49:07.562771"}

stdout:?0

...ignoring

TASK:?[redis_install?|?Add?Boot?Start?In?Redhat?Client]?***********************?

changed:?[172.17.0.6]

TASK:?[redis_install?|?Start?Redis?Service?In?Redhat?Client]?******************?

changed:?[172.17.0.6]

TASK:?[redis_install?|?Delete?Redis?compression?Software?In?Redhat?Client]?****?

changed:?[172.17.0.6]

PLAY?RECAP?********************************************************************?

172.17.0.6?????????????????:?ok=11???changed=9????unreachable=0????failed=0? ?

real??? 1m48.579s

user??? 0m6.781s

sys 0m0.654s

11验夯、查看redis slave安裝情況

09:59:24?#?ssh?172.17.0.6

root@172.17.0.6's?password:?

root@dfec766fbaa7:~

09:59:28?#?ll

total?0

root@dfec766fbaa7:~

09:59:31?#?ps?-ef|grep?redis

root???????197?????1??0?09:49??????????00:00:00?/usr/bin/redis-server/data/redis-2.6.17/conf/redis_6379.conf

root???????227???212??0?09:59?pts/000:00:00?grepredis

09:59:49?#?grep?slave?/data/redis-2.6.17/conf/redis_6379.conf?|egrep?-v?"^#"

slaveof?172.17.0.5?6379

slave-serve-stale-data?yes

slave-read-only?yes

slave-priority?100

client-output-buffer-limit?slave?256mb?64mb?60

root@dfec766fbaa7:~

10:00:09?#?redis-cli?-h?172.17.0.6?-p?6379

redis?172.17.0.6:6379>?keys?*

(empty?list?or?set)

redis?172.17.0.6:6379>?info

#?Server

redis_version:2.6.17

redis_git_sha1:00000000

redis_git_dirty:0

redis_mode:standalone

os:Linux?2.6.32-431.17.1.el6.x86_64?x86_64

arch_bits:64

multiplexing_api:epoll

gcc_version:4.4.7

process_id:197

run_id:81207df2727abe534ae606afc0cb80016f75a422

tcp_port:6379

uptime_in_seconds:685

uptime_in_days:0

hz:10

lru_clock:280339

#?Clients

connected_clients:2

client_longest_output_list:0

client_biggest_input_buf:0

blocked_clients:0

#?Memory

used_memory:878072

used_memory_human:857.49K

used_memory_rss:7569408

used_memory_peak:877280

used_memory_peak_human:856.72K

used_memory_lua:31744

mem_fragmentation_ratio:8.62

mem_allocator:jemalloc-3.2.0

#?Persistence

loading:0

rdb_changes_since_last_save:0

rdb_bgsave_in_progress:0

rdb_last_save_time:1407894548

rdb_last_bgsave_status:ok

rdb_last_bgsave_time_sec:-1

rdb_current_bgsave_time_sec:-1

aof_enabled:0

aof_rewrite_in_progress:0

aof_rewrite_scheduled:0

aof_last_rewrite_time_sec:-1

aof_current_rewrite_time_sec:-1

aof_last_bgrewrite_status:ok

#?Stats

total_connections_received:1

total_commands_processed:70

instantaneous_ops_per_sec:0

rejected_connections:0

expired_keys:0

evicted_keys:0

keyspace_hits:0

keyspace_misses:0

pubsub_channels:0

pubsub_patterns:0

latest_fork_usec:0

#?Replication

role:slave

master_host:172.17.0.5

master_port:6379

master_link_status:up

master_last_io_seconds_ago:1

master_sync_in_progress:0

slave_priority:100

slave_read_only:1

connected_slaves:0

#?CPU

used_cpu_sys:0.24

used_cpu_user:0.10

used_cpu_sys_children:0.00

used_cpu_user_children:0.00

#?Keyspace

可以從上面的Replication里看到主從做好了猖吴，信息如下圖

然后去redis master里查看主從信息

12、redis 主從測試

A.redis master插入key

redis?172.17.0.5:6379>?setmaster?1

redis?172.17.0.5:6379>?setslave?0

redis?172.17.0.5:6379>?get?master

"1"

redis?172.17.0.5:6379>?get?slave

"0"

B.redis slave讀取key

redis?172.17.0.6:6379>?keys?*

1)?"master"

2)?"slave"

redis?172.17.0.6:6379>?get?master

"1"

redis?172.17.0.6:6379>?get?slave

"0"

可以看到主從建立完成

下面是redis slave的日志情況

10:08:04?#?cat?/data/redis-2.6.17/log/redis_6379.log?

????????????????_._??????????????????????????????????????????????????

???????????_.-``__?''-._?????????????????????????????????????????????

??????_.-``????`.??`_.??''-._???????????Redis?2.6.17?(00000000/0)?64?bit

??.-``?.-```.??```\/????_.,_?''-._???????????????????????????????????

?(????'??????,???????.-`??|?`,????)?????Running?instand?alone?mode

?|`-._`-...-`?__...-.``-._|'`?_.-'|?????Port:?6379

?|????`-._???`._????/?????_.-'????|?????PID:?197

??`-._????`-._??`-./??_.-'????_.-'

?|`-._`-._????`-.__.-'????_.-'_.-'|??????????????????????????????????

?|????`-._`-._????????_.-'_.-'|???????????http://redis.io????????

??`-._????`-._`-.__.-'_.-'_.-'???????????????????????????????????

?|`-._`-._????`-.__.-'????_.-'_.-'|??????????????????????????????????

?|????`-._`-._????????_.-'_.-'|??????????????????????????????????

??`-._????`-._`-.__.-'_.-'_.-'???????????????????????????????????

??????`-._????`-.__.-'????_.-'

??????????`-._????????_.-'???????????????????????????????????????????

??????????????`-.__.-'???????????????????????????????????????????????

[197]?13?Aug?09:49:08.878?#?Server?started,?Redis?version?2.6.17

[197]?13?Aug?09:49:08.879?#?WARNING?overcommit_memory?is?set?to?0!?Background?save?may?fail?under?low?memory?condition.?To?fix?this?issue?add?'vm.overcommit_memory?=?1'?to?/etc/sysctl.conf?and?then?reboot?or?run?the?command?'sysctl?vm.overcommit_memory=1'?for?this?to?take?effect.

[197]?13?Aug?09:49:08.879?*?The?server?is?now?ready?to?accept?connections?on?port?6379

[197]?13?Aug?09:49:09.879?*?Connecting?to?MASTER?172.17.0.5:6379

[197]?13?Aug?09:49:09.879?*?MASTER?<->?SLAVE?syncstarted

[197]?13?Aug?09:49:09.881?*?Non?blocking?connect?forSYNC?fired?the?event.

[197]?13?Aug?09:49:09.881?*?Master?replied?to?PING,?replication?can?continue...

[197]?13?Aug?09:49:10.035?*?MASTER?<->?SLAVE?sync:?receiving?18?bytes?from?master

[197]?13?Aug?09:49:10.035?*?MASTER?<->?SLAVE?sync:?Loading?DB?inmemory

[197]?13?Aug?09:49:10.035?*?MASTER?<->?SLAVE?sync:?Finished?with?success

[197]?13?Aug?10:04:56.980?*?1?changes?in900?seconds.?Saving...

[197]?13?Aug?10:04:56.982?*?Background?saving?started?by?pid?233

[233]?13?Aug?10:04:57.226?*?DB?saved?on?disk

[233]?13?Aug?10:04:57.227?*?RDB:?6?MB?of?memory?used?by?copy-on-write

[197]?13?Aug?10:04:57.293?*?Background?saving?terminated?with?success

13挥转、刪除redis安裝

無論redis主從海蔽，刪除都是一樣的命令

09:57:32?#?time?ansible-playbook?redis_delete.yml?--extra-vars?"host=172.17.0.5?user=root"?-k

SSH?password:?

PLAY?[172.17.0.5]?*************************************************************?

GATHERING?FACTS?***************************************************************?

ok:?[172.17.0.5]

TASK:?[redis_delete?|?Stop?Redis?Service?In?Redhat?Client]?********************?

changed:?[172.17.0.5]

TASK:?[redis_delete?|?Delete?Redis?Soft?Line?In?Redhat?Client]?****************?

changed:?[172.17.0.5]?=>?(item=redis-cli)

changed:?[172.17.0.5]?=>?(item=redis-server)

TASK:?[redis_delete?|?Delete?Redis?Dir?In?Redhat?Client]?**********************?

changed:?[172.17.0.5]

TASK:?[redis_delete?|?Delete?Boot?Start?In?Redhat?Client]?*********************?

changed:?[172.17.0.5]

PLAY?RECAP?********************************************************************?

172.17.0.5?????????????????:?ok=5????changed=4????unreachable=0????failed=0???

real??? 0m6.929s

user??? 0m1.942s

sys 0m0.250s

root@ip-10-10-10-10:/etc/ansible

10:09:18?#?time?ansible-playbook?redis_delete.yml?--extra-vars?"host=172.17.0.6?user=root"?-k

SSH?password:?

PLAY?[172.17.0.6]?*************************************************************?

GATHERING?FACTS?***************************************************************?

ok:?[172.17.0.6]

TASK:?[redis_delete?|?Stop?Redis?Service?In?Redhat?Client]?********************?

changed:?[172.17.0.6]

TASK:?[redis_delete?|?Delete?Redis?Soft?Line?In?Redhat?Client]?****************?

changed:?[172.17.0.6]?=>?(item=redis-cli)

changed:?[172.17.0.6]?=>?(item=redis-server)

TASK:?[redis_delete?|?Delete?Redis?Dir?In?Redhat?Client]?**********************?

changed:?[172.17.0.6]

TASK:?[redis_delete?|?Delete?Boot?Start?In?Redhat?Client]?*********************?

changed:?[172.17.0.6]

PLAY?RECAP?********************************************************************?

172.17.0.6?????????????????:?ok=5????changed=4????unreachable=0????failed=0? ?

real??? 0m5.897s

user??? 0m1.726s

sys 0m0.258s

15、刪除后測試

A.redis master上

10:09:55?#?ifconfig

eth0??????Link?encap:Ethernet??HWaddr?C6:3A:D2:D9:DD:D9??

??????????inet?addr:172.17.0.5??Bcast:0.0.0.0??Mask:255.255.0.0

??????????inet6?addr:?fe80::c43a:d2ff:fed9:ddd9/64Scope:Link

??????????UP?BROADCAST?RUNNING??MTU:1500??Metric:1

??????????RX?packets:13236?errors:0?dropped:0?overruns:0?frame:0

??????????TX?packets:12843?errors:0?dropped:0?overruns:0?carrier:0

??????????collisions:0?txqueuelen:1000?

??????????RX?bytes:26106313?(24.8?MiB)??TX?bytes:906412?(885.1?KiB)

lo????????Link?encap:Local?Loopback??

??????????inet?addr:127.0.0.1??Mask:255.0.0.0

??????????inet6?addr:?::1/128Scope:Host

??????????UP?LOOPBACK?RUNNING??MTU:16436??Metric:1

??????????RX?packets:196?errors:0?dropped:0?overruns:0?frame:0

??????????TX?packets:196?errors:0?dropped:0?overruns:0?carrier:0

??????????collisions:0?txqueuelen:0?

??????????RX?bytes:9665?(9.4?KiB)??TX?bytes:9665?(9.4?KiB)

root@06762530db8c:~

10:09:56?#?ps?-ef|grep?redis

root???????431???329??0?10:09?pts/000:00:00?grepredis

root@06762530db8c:~

10:09:59?#?cat?/etc/rc.local?

#!/bin/sh

#?This?script?will?be?executed?*after*?all?the?other?init?scripts.

#?You?can?put?your?own?initialization?stuff?in?here?if?you?don't

#?want?to?do?the?full?Sys?V?style?init?stuff.

touch/var/lock/subsys/local

root@06762530db8c:~

10:10:01?#?ll?/data/

total?4

drwxr-xr-x?2?root?root?4096?Jun??5?10:21?soft

root@06762530db8c:~

B. redis slave上

10:08:09?#?ifconfig

eth0??????Link?encap:Ethernet??HWaddr?BE:97:0C:B2:02:D9??

??????????inet?addr:172.17.0.6??Bcast:0.0.0.0??Mask:255.255.0.0

??????????inet6?addr:?fe80::bc97:cff:feb2:2d9/64Scope:Link

??????????UP?BROADCAST?RUNNING??MTU:1500??Metric:1

??????????RX?packets:13062?errors:0?dropped:0?overruns:0?frame:0

??????????TX?packets:12704?errors:0?dropped:0?overruns:0?carrier:0

??????????collisions:0?txqueuelen:1000?

??????????RX?bytes:25967216?(24.7?MiB)??TX?bytes:842881?(823.1?KiB)

lo????????Link?encap:Local?Loopback??

??????????inet?addr:127.0.0.1??Mask:255.0.0.0

??????????inet6?addr:?::1/128Scope:Host

??????????UP?LOOPBACK?RUNNING??MTU:16436??Metric:1

??????????RX?packets:86?errors:0?dropped:0?overruns:0?frame:0

??????????TX?packets:86?errors:0?dropped:0?overruns:0?carrier:0

??????????collisions:0?txqueuelen:0?

??????????RX?bytes:5288?(5.1?KiB)??TX?bytes:5288?(5.1?KiB)

root@dfec766fbaa7:~

10:10:32?#?ps?-ef|grep?redis

root???????319???212??0?10:10?pts/000:00:00?grepredis

root@dfec766fbaa7:~

10:10:37?#?cat?/etc/rc.local?

#!/bin/sh

#?This?script?will?be?executed?*after*?all?the?other?init?scripts.

#?You?can?put?your?own?initialization?stuff?in?here?if?you?don't

#?want?to?do?the?full?Sys?V?style?init?stuff.

touch/var/lock/subsys/local

root@dfec766fbaa7:~

10:10:39?#?ll?/data/

total?4

drwxr-xr-x?2?root?root?4096?Jun??5?10:21?soft

root@dfec766fbaa7:~

如果大家想使用我的例子绑谣，可以從github里下載（地址是https://github.com/dl528888/ansible-examples/tree/master/redis_install）党窜，然后放到/etc/ansible目錄里，下面是內容

轉載自：http://blog.51cto.com/dl528888/1539251

?著作權歸作者所有,轉載或內容合作請聯系作者

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