functionbeat 7.12 can't deploy -- unknown field 'VerifyConnection' in struct literal of type tls.Config

[jasonslater2000]

OS: OSX
Version: 7.12

2021-04-03T16:55:49.929-0700 DEBUG [gcp] gcp/cli_manager.go:47 Deploy finish for function 'jslater-pubsub'
Function: jslater-pubsub, could not deploy, error: error while creating function (code: 3):
Build failed: # pubsub/vendor/github.com/elastic/beats/v7/libbeat/common/transport/tlscommon
src/pubsub/vendor/github.com/elastic/beats/v7/libbeat/common/transport/tlscommon/tls_config.go:112:3: unknown field 'VerifyConnection' in struct literal of type tls.Config
src/pubsub/vendor/github.com/elastic/beats/v7/libbeat/common/transport/tlscommon/tls_config.go:123:4: unknown field 'VerifyConnection' in struct literal of type tls.Config
src/pubsub/vendor/github.com/elastic/beats/v7/libbeat/common/transport/tlscommon/tls_config.go:141:4: unknown field 'VerifyConnection' in struct literal of type tls.Config
src/pubsub/vendor/github.com/elastic/beats/v7/libbeat/common/transport/tlscommon/tls_config.go:149:8: config.VerifyConnection undefined (type *tls.Config has no field or method VerifyConnection); Error ID: 6191efcd
2021-04-03T16:55:49.929-0700 DEBUG [cli-handler] cmd/cli_handler.go:62 Deploy execution ended
Fail to deploy 1 function(s)

identical configuration works fine w/ functionbeat 7.11.1

[elasticmachine]

Pinging @elastic/agent (Team:Agent)

[ph]

@kvch Anything we have changed recently?

[kvch]

Yes, VerifyConnection was introduced in Golang 1.15 and on GCP the most up to date Golang environment is 1.13. We need some conditional building to make sure it works with older Golang versions.

[ph]

So, this means that functionbeat in the latest revision doesn't work when using TLS options.

[andrewkroh]

I'm just adding a few links for background info on the issue.

References:

• GCP Cloud Function Go version is 1.13 - https://cloud.google.com/functions/docs/concepts/go-runtime
• 7.12 update to start using new Go features - Update Golang to 1.15.7 #22495

[chipzzz]

For anyone trying to use functionbeat with gcp still, what's the option? tried 7.11.1 but that fails too as OP mentioned but that fails too with same error.

[botelastic]

Hi!
We just realized that we haven't looked into this issue in a while. We're sorry!

We're labeling this issue as Stale to make it hit our filters and make sure we get back to it as soon as possible. In the meantime, it'd be extremely helpful if you could take a look at it as well and confirm its relevance. A simple comment with a nice emoji will be enough :+1.
Thank you for your contribution!