docs: Add TINKERBELL_TLS ENVVARS.md

Signed-off-by: Manuel Mendez <[email protected]>
tinkerbell · Feb 10, 2022 · ae0df5f · ae0df5f
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commit ae0df5f
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diff --git a/docs/ENVVARS.md b/docs/ENVVARS.md
@@ -32,5 +32,6 @@ The follow describes environment variables available to be set when running Tink
 | `TINKERBELL_CERT_URL=http://127.0.0.1:42114/cert`                                              | string | clients    | url from which to get a TLS certificate, needed when Tink Server's TLS cert is signed by an unknown certificate authority, ie self-signed     |
 | `TINKERBELL_GRPC_AUTHORITY=127.0.0.1:42113`                                                    | string | all        | same as `GRPC_AUTHORITY`, deprecated in server                                                                                                |
 | `TINKERBELL_HTTP_AUTHORITY=127.0.0.1:42114`                                                    | string | server     | same as `HTTP_AUTHORITY`, deprecated in server                                                                                                |
+| `TINKERBELL_TLS="true"`                                                                        | string | all        | configures grpc service or client connections for tls vs plaintext                                                                            |
 | `TINKERBELL_TLS_CERT="-----BEGIN RSA PRIVATE KEY-----\n....\n-----END RSA PRIVATE KEY-----\n"` | string | server     | same as `TLS_CERT`, deprecated in server                                                                                                      |
 | `TLS_CERT="-----BEGIN RSA PRIVATE KEY-----\n....\n-----END RSA PRIVATE KEY-----\n"`            | string | server     | a TLS certificate for use with Tink server                                                                                                    |