On Windows 10, plugins unreachable without additional settings

[tyrannosaurus-becks]

This issue came in through the vault-tool forum here.

On Windows 10 (this is not duplicate-able on Ubuntu), with Vault 1.1.0, following our docs for configuration, plugins are failing to be addressable unless the PLUGIN_MIN_PORT and PLUGIN_MAX_PORT is set for github.com/hashicorp/go-plugin to use. Otherwise they fail with output like:

2019-04-12T14:23:47.075+0300 [DEBUG] secrets.vault-pki-backend-venafi.vault-pki-backend-venafi_83e6e933.vault-pki-backend-venafi: starting

 plugin: metadata=true path=C:\Users\ar\Documents\vault\bin\go_build_github_com_Venafi_vault_pki_backend_venafi.exe args=[C

:\Users\ar\Documents\vault\bin\go_build_github_com_Venafi_vault_pki_backend_venafi.exe]

2019-04-12T14:23:47.083+0300 [DEBUG] secrets.vault-pki-backend-venafi.vault-pki-backend-venafi_83e6e933.vault-pki-backend-venafi: plugin s

tarted: metadata=true path=C:\Users\ar\Documents\vault\bin\go_build_github_com_Venafi_vault_pki_backend_venafi.exe pid=5524



2019-04-12T14:23:47.083+0300 [DEBUG] secrets.vault-pki-backend-venafi.vault-pki-backend-venafi_83e6e933.vault-pki-backend-venafi: waiting

for RPC address: metadata=true path=C:\Users\ar\Documents\vault\bin\go_build_github_com_Venafi_vault_pki_backend_venafi.exe



2019-04-12T14:23:47.154+0300 [DEBUG] secrets.vault-pki-backend-venafi.vault-pki-backend-venafi_83e6e933.vault-pki-backend-venafi: using pl

ugin: metadata=true version=4

2019-04-12T14:23:47.154+0300 [DEBUG] secrets.vault-pki-backend-venafi.vault-pki-backend-venafi_83e6e933.vault-pki-backend-venafi.go_build_

github_com_Venafi_vault_pki_backend_venafi.exe: plugin address: metadata=true address=127.0.0.1:10002 network=tcp timestamp=2019-04-12T14:

23:47.112+0300

2019-04-12T14:23:47.154+0300 [TRACE] secrets.vault-pki-backend-venafi.vault-pki-backend-venafi_83e6e933.vault-pki-backend-venafi: setup: t

ransport=gRPC status=started

2019-04-12 14:23:47.157400 I | [ERR] plugin: plugin acceptAndServe error: strconv.ParseInt: parsing "": invalid syntax

2019-04-12T14:23:52.161+0300 [TRACE] secrets.vault-pki-backend-venafi.vault-pki-backend-venafi_83e6e933.vault-pki-backend-venafi: setup: t

ransport=gRPC status=finished err="rpc error: code = Unknown desc = timeout waiting for connection info" took=5.0072557s

2019-04-12T14:23:52.161+0300 [ERROR] secrets.system.system_84e204b1: mount failed: path=venafi-pki/ error="rpc error: code = Unknown desc

= timeout waiting for connection info"

2019-04-12T14:24:03.169+0300 [DEBUG] rollback: attempting rollback: path=auth/token/

2019-04-12T14:24:03.169+0300 [DEBUG] rollback: attempting rollback: path=identity/

2019-04-12T14:24:03.169+0300 [DEBUG] rollback: attempting rollback: path=sys/

2019-04-12T14:24:03.169+0300 [DEBUG] rollback: attempting rollback: path=cubbyhole/

2019-04-12T14:24:03.169+0300 [DEBUG] rollback: attempting rollback: path=secret/

We should probably document this, or perhaps set these automatically to be the same value as the Vault port, or perhaps address the issue in the go-plugin repo.

[michelvocks]

Closing this since hashicorp/go-plugin#111 has been merged.