用 ansible 启动 elasticsearch 报错

[hagezhou]

今天尝试用 ansible 管理集群，结果启动碰到问题，如下：

➜ ~ ansible all -m shell -a "/bin/bash /home/elasticsearch/elasticsearch-5.5.0/bin/elasticsearch -d" -u elasticsearch 192.168.200.138 | FAILED | rc=1 >> Could not find any executable java binary. Please install java in your PATH or set JAVA_HOME

192.168.200.139 | FAILED | rc=1 >> Elasticsearch requires at least Java 8 but your Java version from /usr/bin/java does not meet this requirement

192.168.200.140 | FAILED | rc=1 >> Could not find any executable java binary. Please install java in your PATH or set JAVA_HOME

---

在集群的机器上运行 /bin/bash /home/elasticsearch/elasticsearch-5.5.0/bin/elasticsearch -d 是没有问题的，简单的就“./bin/elasticsearch -d ”就可以启动了，但是用 ansible 就会报 java 的错误，有大神可以解决吗？

[Reloading]

写的很清楚了 没有 JAVA_HOME，你在 elasticsearch 里添加个 JAVA_HOME

[laxenade]

环境变量需要传进 shell command 里
```
- name: xxx
shell: yyy
environment: zzz
```

[hagezhou]

@laxenade 加了 environment 之后就可以了，多谢

[hagezhou]

@laxenade 弱弱的问一句

- hosts: 192.168.200.138
remote_user: elasticsearch
tasks:
- name: run es
command: ./elasticsearch-5.5.0/bin/elasticsearch -d
environment:
PATH: "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/opt/java8/bin:/opt/cloudera/parcels/CDH/lib/hadoop/../../bin:/opt/apache-maven-3.3.9/bin"
JAVA_HOME: "/opt/java8/bin/java"

es 启动加上-d 之后 ansible 表示执行成功，但是去集群上看 ps 一下 es 并没有起来
如果去掉-d 之后就变成前台了，ansible 会阻塞，es 起来了，这是为什么？能不能搞成后台的

[laxenade]

@hagezhou https://superuser.com/questions/870871/run-a-remote-script-application-in-detached-mode-in-ansible

[hagezhou]

@laxenade 真是太感谢了，解决了，厉害