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Fix indentation

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Loic Nageleisen 2020-06-26 11:03:43 +02:00 • committed by GitHub
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@ -7,25 +7,25 @@ machine.
`push` pushes bash scripts called `unit`s through ssh to execute:
./push -v units/update units/sshd units/ssh_authorized_keys root@1.2.3.4
./push -v units/update units/sshd units/ssh_authorized_keys root@1.2.3.4
Units are processed on the target machine by the `run` script. Each unit executes within its own subshell so no variable leak occurs. Each subshell is run with `set -euo pipefail`. Each subshell also sources the contents of `lib` which defines a few convenience functions.
By writing those unit scripts to be idempotent you can just run them again and again. Units can be aggregated in `group`s, which can themselves reference other groups:
./push -v groups/base groups/ruby units/dockerd root@foo.example.com
./push -v groups/base groups/ruby units/dockerd root@foo.example.com
Finally, you can define `host`s, which are like groups, only they save you some typing to apply units to multiple targets:
./apply -v hosts/foo.example.com hosts/bar.example.com
./apply -v hosts/foo.example.com hosts/bar.example.com
The above can be made to process hosts in parallel:
./apply -v -p hosts/foo.example.com hosts/bar.example.com
./apply -v -p hosts/foo.example.com hosts/bar.example.com
Since `units/`, `groups/`, and `hosts/`, are just directories and files, autocompletion works immediately and you could get creative with shell expansion for arguments.
./apply hosts/{foo,bar}.example.com hosts/test.*
./apply hosts/{foo,bar}.example.com hosts/test.*
## Rationale