Error while trying to use terraform-plugin-sdk

Terraform Providers Plugin Development
1

I am new to Terraform, Terraform plugin development, and Go lang. I am trying learn custom plugin development by following this page on Terraform website.

On that page, in this section, there is a command to build the plugin. When I run that command, it runs into multiple “cannot find package” errors. Output is as pasted below.

# go build -o terraform-provider-sample
../../github.com/hashicorp/terraform-plugin-sdk/helper/schema/backend.go:4:2: cannot find package "context" in any of:
        /usr/lib/go-1.6/src/context (from $GOROOT)
        /root/code/go/src/context (from $GOPATH)
../../github.com/hashicorp/terraform-plugin-sdk/internal/configs/configschema/validate_traversal.go:7:2: cannot find package "github.com/hashicorp/hcl/v2" in any of:
        /usr/lib/go-1.6/src/github.com/hashicorp/hcl/v2 (from $GOROOT)
        /root/code/go/src/github.com/hashicorp/hcl/v2 (from $GOPATH)
../../github.com/hashicorp/terraform-plugin-sdk/internal/lang/eval.go:9:2: cannot find package "github.com/hashicorp/hcl/v2/ext/dynblock" in any of:
        /usr/lib/go-1.6/src/github.com/hashicorp/hcl/v2/ext/dynblock (from $GOROOT)
        /root/code/go/src/github.com/hashicorp/hcl/v2/ext/dynblock (from $GOPATH)
../../github.com/hashicorp/terraform-plugin-sdk/internal/configs/named_values.go:7:2: cannot find package "github.com/hashicorp/hcl/v2/ext/typeexpr" in any of:
        /usr/lib/go-1.6/src/github.com/hashicorp/hcl/v2/ext/typeexpr (from $GOROOT)
        /root/code/go/src/github.com/hashicorp/hcl/v2/ext/typeexpr (from $GOPATH)
../../github.com/hashicorp/terraform-plugin-sdk/internal/configs/module_call.go:7:2: cannot find package "github.com/hashicorp/hcl/v2/gohcl" in any of:
        /usr/lib/go-1.6/src/github.com/hashicorp/hcl/v2/gohcl (from $GOROOT)
        /root/code/go/src/github.com/hashicorp/hcl/v2/gohcl (from $GOPATH)
../../github.com/hashicorp/terraform-plugin- sdk/internal/configs/configschema/decoder_spec.go:4:2: cannot find package "github.com/hashicorp/hcl/v2/hcldec" in any of:
        /usr/lib/go-1.6/src/github.com/hashicorp/hcl/v2/hcldec (from $GOROOT)
        /root/code/go/src/github.com/hashicorp/hcl/v2/hcldec (from $GOPATH)
../../github.com/hashicorp/terraform-plugin-sdk/internal/configs/parser.go:8:2: cannot find package "github.com/hashicorp/hcl/v2/hclparse" in any of:
        /usr/lib/go-1.6/src/github.com/hashicorp/hcl/v2/hclparse (from $GOROOT)
        /root/code/go/src/github.com/hashicorp/hcl/v2/hclparse (from $GOPATH)
../../github.com/hashicorp/terraform-plugin-sdk/internal/configs/configschema/validate_traversal.go:8:2: cannot find package "github.com/hashicorp/hcl/v2/hclsyntax" in any of:
        /usr/lib/go-1.6/src/github.com/hashicorp/hcl/v2/hclsyntax (from $GOROOT)
        /root/code/go/src/github.com/hashicorp/hcl/v2/hclsyntax (from $GOPATH)
../../golang.org/x/sys/unix/affinity_linux.go:10:2: cannot find package "math/bits" in any of:
        /usr/lib/go-1.6/src/math/bits (from $GOROOT)
        /root/code/go/src/math/bits (from $GOPATH)
../../golang.org/x/net/http2/go111.go:10:2: cannot find package "net/http/httptrace" in any of:
        /usr/lib/go-1.6/src/net/http/httptrace (from $GOROOT)
        /root/code/go/src/net/http/httptrace (from $GOPATH)

I see that I have terraform-plugin-sdk in my GOPATH, and it is up to date with github copy. I am not sure how this should be fixed. Any help in resolving this is appreciated!

2

This issue is resolved now.

Problem was with Go lang version being slightly older. I removed earlier golang installation (done using apt-get), downloaded latest Go version from official site and installed it.

For detailed steps, please refer this link.

3

Hi Prabhus,

You need to setup go modules. Use the following in your provider directory which looks to be “terraform-provider-sample” in your case.

  1. go mod init
  2. go mod download
  3. go mod tidy

Hope this helps,

Regards

Phil.