chore: Reorganize examples and interop crates (#180)

* chore: Reorganize examples and interop crates

* fix interop tests

interop/data/README.md

@@ -0,0 +1,17 @@
+# Tonic Testing Certificates
+
+This directory contains certificates used for testing interop between Tonic's
+implementation of gRPC and the Go implementation. Certificates are generated
+using [`terraform`][tf].
+
+To regenerate certificates for some reason, do the following:
+
+1. Install Terraform 0.12 (or higher)
+1. From the `cert-generator` directory, run:
+    1. `terraform init`
+    1. `terraform apply`
+
+This will generate certificates and write them to the filesystem. The effective
+version should be committed to git.
+
+[tf]: https://terraform.io

interop/data/ca.pem

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDRzCCAi+gAwIBAgIRAO7dzPqhReVW2U6D1V1DTYAwDQYJKoZIhvcNAQELBQAw
+PTEOMAwGA1UEChMFVG9raW8xEDAOBgNVBAsTB1Rlc3RpbmcxGTAXBgNVBAMTEFRv
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+1dtqgxS2T0nmdRlXBYNNhYKdgWYJq1PwDp9a
+-----END CERTIFICATE-----

interop/data/cert-generator/.gitignore

@@ -0,0 +1,3 @@
+.terraform/
+*.tfstate
+*.tfstate.backup

interop/data/cert-generator/ca.tf

@@ -0,0 +1,27 @@
+resource "tls_private_key" "root" {
+  algorithm = "RSA"
+  rsa_bits = "2048"
+}
+
+resource "tls_self_signed_cert" "root" {
+  key_algorithm = tls_private_key.root.algorithm
+  private_key_pem = tls_private_key.root.private_key_pem
+
+  validity_period_hours = 87600
+  early_renewal_hours = 8760
+
+  is_ca_certificate = true
+
+  allowed_uses = ["cert_signing"]
+
+  subject {
+    common_name = "Tonic Testing CA"
+    organization = "Tokio"
+    organizational_unit = "Testing"
+  }
+}
+
+resource "local_file" "ca_cert" {
+  filename = "../ca.pem"
+  content = tls_self_signed_cert.root.cert_pem
+}

interop/data/cert-generator/server_certs.tf

@@ -0,0 +1,40 @@
+resource "tls_private_key" "server" {
+  algorithm = "RSA"
+  rsa_bits = "2048"
+}
+
+resource "tls_cert_request" "server" {
+  key_algorithm = tls_private_key.server.algorithm
+  private_key_pem = tls_private_key.server.private_key_pem
+
+  subject {
+    common_name = "Tonic Test Server Cert"
+  }
+
+  dns_names = [
+    "*.test.google.fr",
+  ]
+}
+
+resource "tls_locally_signed_cert" "server" {
+  cert_request_pem = tls_cert_request.server.cert_request_pem
+
+  ca_key_algorithm = tls_private_key.root.algorithm
+  ca_private_key_pem = tls_private_key.root.private_key_pem
+  ca_cert_pem = tls_self_signed_cert.root.cert_pem
+
+  validity_period_hours = 43800
+  early_renewal_hours = 8760
+
+  allowed_uses = ["server_auth"]
+}
+
+resource "local_file" "server_cert" {
+  filename = "../server1.pem"
+  content = tls_locally_signed_cert.server.cert_pem
+}
+
+resource "local_file" "server_key" {
+  filename = "../server1.key"
+  content = tls_private_key.server.private_key_pem
+}

interop/data/server1.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEAvSo8ttodDg4wwjwSPURcTgVPh7Iv9E+PsCTHW7b1Dov/tjxs
+nhgLZkySicSLIhHv+/17DYHaMd7alx5AYb+Bxk/KvSuR/sqg0QJcuQ4prpzccQHY
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+NiY/yUYTsQbh6Mey8QAC5wdoyuVUKQO2SwyNiHFWP+i9aFXr/rv98w==
+-----END RSA PRIVATE KEY-----

interop/data/server1.pem

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDSzCCAjOgAwIBAgIQQY5jNBnC4CbgToZB9CzLYzANBgkqhkiG9w0BAQsFADA9
+MQ4wDAYDVQQKEwVUb2tpbzEQMA4GA1UECxMHVGVzdGluZzEZMBcGA1UEAxMQVG9u
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+-----END CERTIFICATE-----