Ansible当节点很多时会存在加载Gathering Facts很慢的情况，目前社区提供了两种方式实现Gathering Facts加速：JSONFIle和Reids缓存
JSONFIle
编辑ansible以下配置
[defaults]
callbacks_enabled=ansible.posix.profile_tasks // 用来测试加速效果
gathering = smart
fact_caching = jsonfile
fact_caching_connection = /tmp/facts_cache
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创建缓存目录
mkdir -p /tmp/facts_cache
chmod 777 /tmp/facts_cache
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第一次运行ansible-playbook，加载Gathering Fact用了16.67s
Thursday 23 May 2024 17:02:04 +0800 (0:00:00.028) 0:00:35.453 **********
===============================================================================
Gathering Facts -------------------------------------------------------- 16.67s
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第二次运行ansible-playbook，跳过Gathering Facts
Thursday 23 May 2024 17:07:24 +0800 (0:00:00.023) 0:00:17.304 **********
===============================================================================
rke : Check RKE Image Is Exist ------------------------------------------ 3.84s
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Redis
创建redis配置文件
mkdir -p /data/redis/data
cat >/data/redis/redis.conf <<EOF
bind 0.0.0.0
port 6379
daemonize no
requirepass 123456
EOF
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启动redis容器
docker run --name redis -idt \
--net host \
-p 6379:6379 \
--restart=always \
-v /etc/localtime:/etc/localtime \
-v /data/redis/redis.conf:/usr/local/etc/redis/redis.conf \
redis:6.2.10 \
redis-server /usr/local/etc/redis/redis.conf
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测试访问redis
docker exec -it redis redis-cli
127.0.0.1:6379> auth 123456
OK
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ansible节点安装redis python模块
编辑ansible配置文件
gathering = smart
fact_caching = redis
fact_caching_timeout = 86400
fact_caching_connection = 192.168.126.131:6379:0:123456
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第一次运行效果
Thursday 23 May 2024 18:24:49 +0800 (0:00:00.023) 0:00:33.961 **********
===============================================================================
Gathering Facts -------------------------------------------------------- 16.74s
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第二次运行效果
Thursday 23 May 2024 18:25:28 +0800 (0:00:00.023) 0:00:18.605 **********
===============================================================================
rke : Check RKE Image Is Exist ------------------------------------------ 4.65s
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