panic: runtime error: invalid memory address or nil pointer dereference

[grafanalf]

I am getting the following panic from Rover:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x758fa8]

goroutine 1 [running]:
main.(*rover).GenerateResourceOverview(0xc000214000)
	/src/rso.go:166 +0x1168
main.(*rover).generateAssets(0xc000214000)
	/src/main.go:172 +0x167
main.main()
	/src/main.go:118 +0xa19

However, terraform plan works just fine, but it prints the following warning at the end:

Plan: 0 to add, 0 to change, 3 to destroy.

───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

Note: You didn't use the -out option to save this plan, so Terraform can't guarantee to take exactly these actions if you run "terraform apply" now.

Any ideas?

[grafanalf]

I think this might be a duplicate of issue #26

[Yashfork]

Hi @im2nguyen ,

While running docker run, I'm getting the above panic error. Any suggestions on what could be done to mitigate this issue

[im2nguyen]

Hi @Yashfork, can you provide more context so I can reproduce your error?

It'll be nice to understand what the plan does (create, update, destroy) and the error logs.

[dorinand]

@im2nguyen I encounter the same issue. I have plan in json format. I run it with command:

docker run --rm -it -p 9000:9000 -v $(pwd):/src im2nguyen/rover:v0.3.2 -planJSONPath /src/plan.json
2022/04/01 08:42:40 Starting Rover...
2022/04/01 08:42:40 Using provided JSON plan...
2022/04/01 08:42:40 Generating resource overview...
2022/04/01 08:42:40 No submodule configurations found...
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-asg-terminating
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-asg-total-nlm
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-cpu-usage
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-cpu-usage-nlm
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-total-requests-finished-error
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-waf-counted
2022/04/01 08:42:40 Continuing without loading module from filesystem: lambda-async-calls-handler
2022/04/01 08:42:40 Continuing without loading module from filesystem: license-server-asg
2022/04/01 08:42:40 Continuing without loading module from filesystem: license-server-asg.lb
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-fsx-free-space
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-license-check
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-memory-usage-nlm
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-total-requests-failed-start
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-asg-pending
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-asg-pending-nlm
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-asg-terminating-nlm
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-asg-total
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-memory-usage
2022/04/01 08:42:40 Continuing without loading module from filesystem: mps-asg
2022/04/01 08:42:40 Continuing without loading module from filesystem: mps-asg.lb
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-alb-5xx
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-alb-healthy
2022/04/01 08:42:40 Continuing without loading module from filesystem: monitor-waf-blocked
2022/04/01 08:42:40 Continuing without loading module from filesystem: tags
2022/04/01 08:42:40 Continuing without loading module from filesystem: waf2-lb
2022/04/01 08:42:40 Generating resource map...
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x38 pc=0xa5a148]

goroutine 1 [running]:
main.(*rover).GenerateModuleMap(0xc000105200, 0xc000517ba0, {0x0, 0x0})
	/src/map.go:250 +0xd88
main.(*rover).GenerateMap(0xc000105200)
	/src/map.go:343 +0x1d1
main.(*rover).generateAssets(0x0)
	/src/main.go:193 +0xd4
main.main()
	/src/main.go:138 +0xcbb

Tried version v0.3.1 but the result is the same.