feat: add openresty proxy implementation

This plugin is mostly compatible with the nginx plugin, but runs the proxy within a docker container. Users do not have direct access to add custom openresty configuration at this time, but instead receive the ability to setup automatic ssl on first request via letsencrypt integration.

tests/unit/caddy.bats

@@ -145,5 +145,5 @@ teardown() {
   run /bin/bash -c "dokku --quiet ports:report $TEST_APP --ports-map-detected"
   echo "output: $output"
   echo "status: $status"
-  assert_output "http:80:5000"
+  assert_output "http:80:5000 https:443:5000"
 }

tests/unit/haproxy.bats

@@ -162,5 +162,5 @@ teardown() {
   run /bin/bash -c "dokku --quiet ports:report $TEST_APP --ports-map-detected"
   echo "output: $output"
   echo "status: $status"
-  assert_output "http:80:5000"
+  assert_output "http:80:5000 https:443:5000"
 }

tests/unit/openresty.bats

@@ -0,0 +1,189 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  global_setup
+  dokku nginx:stop
+  dokku openresty:set --global letsencrypt-server https://acme-staging-v02.api.letsencrypt.org/directory
+  dokku openresty:set --global letsencrypt-email
+  dokku openresty:start
+  create_app
+}
+
+teardown() {
+  global_teardown
+  destroy_app
+  dokku openresty:stop
+  dokku nginx:start
+}
+
+@test "(openresty) openresty:help" {
+  run /bin/bash -c "dokku openresty"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "Manage the openresty proxy integration"
+  help_output="$output"
+
+  run /bin/bash -c "dokku openresty:help"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "Manage the openresty proxy integration"
+  assert_output "$help_output"
+}
+
+@test "(openresty) single domain" {
+  run /bin/bash -c "dokku proxy:set $TEST_APP openresty"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@dokku.me:$TEST_APP convert_to_dockerfile
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  assert_http_localhost_success "http" "$TEST_APP.dokku.me" "80" "" "python/http.server"
+}
+
+@test "(openresty) multiple domains" {
+  run /bin/bash -c "dokku proxy:set $TEST_APP openresty"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku domains:add $TEST_APP $TEST_APP.dokku.me"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku domains:add $TEST_APP $TEST_APP-2.dokku.me"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@dokku.me:$TEST_APP convert_to_dockerfile
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  assert_http_localhost_success "http" "$TEST_APP.dokku.me" "80" "" "python/http.server"
+  assert_http_localhost_success "http" "$TEST_APP-2.dokku.me" "80" "" "python/http.server"
+}
+
+@test "(openresty) ssl" {
+  run /bin/bash -c "dokku builder-herokuish:set $TEST_APP allowed true"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku proxy:set $TEST_APP openresty"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_http_localhost_success "http" "$TEST_APP.dokku.me" "80" "" "python/http.server"
+
+  run /bin/bash -c "dokku ports:report $TEST_APP --ports-map-detected"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "http:80:5000"
+
+  run /bin/bash -c "docker inspect $TEST_APP.web.1 --format '{{ index .Config.Labels \"openresty.letsencrypt\" }}'"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "false"
+
+  run /bin/bash -c "dokku openresty:set --global letsencrypt-email test@example.com"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku openresty:stop"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku openresty:start"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku ps:rebuild $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku ps:inspect $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "docker inspect $TEST_APP.web.1 --format '{{ index .Config.Labels \"openresty.letsencrypt\" }}'"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "true"
+
+  run /bin/bash -c "dokku ports:report $TEST_APP --ports-map-detected"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "http:80:5000 https:443:5000"
+}
+
+@test "(openresty) includes" {
+  run /bin/bash -c "dokku proxy:set $TEST_APP openresty"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@dokku.me:$TEST_APP add_openresty_include
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku ps:inspect $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "docker inspect $TEST_APP.web.1 --format '{{ index .Config.Labels \"openresty.include-http-example.conf\" }}'"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "IyBmb3JjZSB0aGUgY2hhcmFjdGVyIHNldCB0byB1dGYtOApjaGFyc2V0IFVURi04Owo="
+
+  run /bin/bash -c "docker logs openresty-openresty-1"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "docker exec openresty-openresty-1 /usr/local/openresty/nginx/sbin/nginx -t"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "docker exec openresty-openresty-1 cat /etc/nginx/sites-enabled/sites.conf"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains "force the character set to utf-8"
+  assert_output_contains "charset UTF-8;"
+}
+
+add_openresty_include() {
+  local APP="$1"
+  local APP_REPO_DIR="$2"
+  [[ -z "$APP" ]] && local APP="$TEST_APP"
+  mkdir -p "$APP_REPO_DIR/openresty-http-includes"
+  touch "$APP_REPO_DIR/openresty-http-includes/example.conf"
+  echo "# force the character set to utf-8" >>"$APP_REPO_DIR/openresty-http-includes/example.conf"
+  echo "charset UTF-8;" >>"$APP_REPO_DIR/openresty-http-includes/example.conf"
+}

tests/unit/test_helper.bash

@@ -223,12 +223,19 @@ assert_http_success() {
 }
 
 assert_http_localhost_success() {
-  local scheme="$1" domain="$2" port="${3:-80}" path="${4:-}"
+  local scheme="$1" domain="$2" port="${3:-80}" path="${4:-}" content="${5:-}"
   run curl --connect-to "$domain:$port:localhost:$port" -kSso /dev/null -w "%{http_code}" "$scheme://$domain:$port$path"
   echo "curl: curl --connect-to $domain:$port:localhost:$port -kSso /dev/null -w %{http_code} $scheme://$domain:$port$path"
   echo "output: $output"
   echo "status: $status"
   assert_output "200"
+
+  if [[ -n "$content" ]]; then
+    run curl --connect-to "$domain:$port:localhost:$port" -kSs "$scheme://$domain:$port$path"
+    echo "output: $output"
+    echo "status: $status"
+    assert_output "$content"
+  fi
 }
 
 assert_ssl_domain() {

tests/unit/traefik.bats

@@ -241,7 +241,7 @@ teardown() {
   run /bin/bash -c "dokku --quiet ports:report $TEST_APP --ports-map-detected"
   echo "output: $output"
   echo "status: $status"
-  assert_output "http:80:5000"
+  assert_output "http:80:5000 https:443:5000"
 }
 
 @test "(traefik) show-config without auth set" {