Go R1 Day 29
progress🔗
- Evaluated Mage as a replacement for bash/pwsh based tasks for automation with Azure Pipelines.
- Was able to get terraform to run with dynamic configuration using the following approach:
Install with
go get -u github.com/magefile/mage/mg
go mod init mage-build
go get github.com/magefile/mage/mg
go get github.com/magefile/mage/sh
go mod tidy
Then to get mage-select run:
GO111MODULE=off go get github.com/iwittkau/mage-select
cd $GOPATH/src/github.com/iwittkau/mage-select
mage install
Configure some constants, which I'd probably do differently later. For now, this is a good rough start.
const (
repo = "myrepopath"
name = "myreponame"
buildImage = "mcr.microsoft.com/vscode/devcontainers/base:0-focal"
terraformDir = "terraform/stack"
config_import = "qa.config"
)
func TerraformInit() error {
params := []string{"-chdir=" + terraformDir}
params = append(params, "init")
params = append(params, "-input=false")
params = append(params, "-var", "config_import="+config_import+".yml")
// Backend location configuration only changes during the init phase, so you do not need to provide this to each command thereafter
// https://github.com/hashicorp/terraform/pull/20428#issuecomment-470674564
params = append(params, "-backend-config=./"+config_import+".tfvars")
fmt.Println("starting terraform init")
err := sh.RunV("terraform", params...)
if err != nil {
return err
}
return nil
}
Once terraform was initialized, it could be planned.
func TerraformPlan() error {
mg.Deps(TerraformInit)
params := []string{"-chdir=" + terraformDir}
params = append(params, "plan")
params = append(params, "-input=false")
params = append(params, "-var", "config_import="+config_import+".yml")
fmt.Println("starting terraform plan")
err := sh.RunV("terraform", params...)
if err != nil {
return err
}
return nil
}
- Of interest as well was mage-select, providing a new gui option for easier running by others joining a project.
