make it run on alpine 3.11

rootfs/app/gin.patch

@@ -1,47 +0,0 @@
-diff --git a/gin-0.2.0-1.rockspec b/gin-0.2.0-1.rockspec
-index b9601ec..55f4469 100644
---- a/gin-0.2.0-1.rockspec
-+++ b/gin-0.2.0-1.rockspec
-@@ -18,8 +18,9 @@ dependencies = {
-     "busted = 2.0.rc10-0",
-     "lua-cjson = 2.1.0-1",
-     "luasocket = 3.0rc1-2",
-+    "luasec = 0.5-2",
-     "luafilesystem = 1.6.3-1",
--    "luaposix = 33.3.1-1",
-+    "luaposix = 33.4.0",
-     "penlight = 1.3.2-2",
-     "luadbi = 0.5-1"
- }
-diff --git a/gin/spec/runners/integration.lua b/gin/spec/runners/integration.lua
-index 5ef537a..21ec8f9 100644
---- a/gin/spec/runners/integration.lua
-+++ b/gin/spec/runners/integration.lua
-@@ -1,5 +1,6 @@
- -- dep
- local http = require 'socket.http'
-+local https = require 'ssl.https'
- local url = require 'socket.url'
- local json = require 'cjson'
- local ltn12 = require 'ltn12'
-@@ -82,8 +83,9 @@ local function set_accept_header(request, api_version)
- end
-
- local function hit_server(request)
-+    local scheme = request.scheme or 'http'
-     local full_url = url.build({
--        scheme = 'http',
-+        scheme = scheme,
-         host = '127.0.0.1',
-         port = Gin.settings.port,
-         path = request.path,
-@@ -91,7 +93,8 @@ local function hit_server(request)
-     })
-
-     local response_body = {}
--    local ok, response_status, response_headers = http.request({
-+    local http_request = (scheme == 'https') and https.request or http.request
-+    local ok, response_status, response_headers = http_request({
-         method = request.method,
-         url = full_url,
-         source = ltn12.source.string(request.body),