I am trying to automate an Aerospike database installation using saltstack version 2015.5.2 on an Ubuntu machine.
The following is the process of manual installation that I want to automate. (I'll only mention the key steps to keep it simple)
Download Aerospike
wget -O aerospike.tgz
http://aerospike.com/download/server/latest/artifact/ubuntu12
extract the contents of the package
tar -xvf aerospike.tgz
Install Aerospike Server & Tools
cd aerospike-server-community-3.5.15-ubuntu12.04
./asinstall
Start Aerospike
/etc/init.d/aerospike start
Step 3 performs the actual installation which includes installation of 2 packages: aerospike-server-community and aerospike-tools.
Now in the saltstack state file I want to check if both the packages are already present on server, and in that case do not execute the ./asinstall command in step 3.
How can I involve that condition in my automated process?
I recommend you read requisites in salt before going on because you can find many interesting things there.
Furthermore,what you really need, in my opinion is: UNLESS, because if you already have these packages on your system they should not be installed. Unless can be used together with the pkg keyword, but for you the rpm -q package_name might work just as well.
It should look something like this:
start_process:
cmd.run:
- name: 'write here your command'
- unless:
- rpm -q package1 package2