I am writing a script that will download the executable binary from Google cloud storage and execute it on the Google cloud compute.
But, I don't know what would be the right values for GOOS and GOARCH environment variables to build the executable with go build command.
Container-Optimized OS is a Linux derivate, and to the best of my knowledge all GCE instances are x86_64 machines. This machine is a n1-standard-1 with the stable COS image:
user@instance-1 ~ $ uname -a
Linux instance-1 4.4.111+ #1 SMP Thu Apr 5 21:21:21 PDT 2018 x86_64 Intel(R) Xeon(R) CPU @ 2.50GHz GenuineIntel GNU/Linux
So to build for COS use
GOOS=linux GOARCH=amd64
Here's an example of building Go binaries for various processor architectures and operating systems:
#!/usr/bin/env bash
# Build go binaries for the 3 main architectures that we can use on
tagged releases
for GOOS in darwin linux windows; do
for GOARCH in 386 amd64; do
go build -v -o gm-fabric-proxy-$GOOS-$GOARCH
done
done
Basically GOOS tells the Go compiler which OS you want to compile to, and GOARCH tells the compiler which processor architecture it needs to conform to.
On unix based systems you can run this command to find your processor architecture and operating sytem kernel info:
Alecs-MacPro:~ user$ uname -a
Darwin Alecs-MacPro.local 17.4.0 Darwin Kernel Version 17.4.0: Sun Dec 17 09:19:54 PST 2017; root:xnu-4570.41.2~1/RELEASE_X86_64 x86_64
The script example provided above will create binaries for the 3 main operating systems and 2 main architectures.