Useful Ad-hoc Commands
Note:
| Option | Description |
|---|---|
-m |
module |
-a |
command |
-u |
user |
Copy Binary JAR to all machines
Build the JAR on your development machine (the control node where Ansible is installed):
$ sbt clean assembly
Then copy the artifact into each machines target folder (and avoid having to compile on each Pi). In this example temperatures is the group of machines in my inventory file and you’d run it form the source folder of temperature-machine.
$ ansible -i ansible/inventory temperatures -m copy -a "src=target/scala-2.12/temperature-machine-2.1.jar dest=/home/pi/code/temperature-machine/target/scala-2.12" -u pi
Bounce all Machines
$ ansible -i ansible/inventory temperatures -a reboot --become -u pi
Update Sources
Well, this doesn’t work but it’d be nice if it did!
$ ansible -i ansible/inventory temperatures -m git -a "repo=https://github.com/tobyweston/temperature-machine.git dest=/home/pi/code update=yes clone=no" -u pi
Config Git
I have a standard set of configs I like to apply on all boxes (notice the single quotes around the value arguments):
$ ansible -i ansible/inventory temperatures -m git_config -a "name=alias.st scope=global value='status -sb'" -u pi
$ ansible -i ansible/inventory temperatures -m git_config -a "name=alias.last scope=global value='log -1 HEAD'" -u pi