From 322fcc3979da2d572bbcbec77b85c669d83e9a38 Mon Sep 17 00:00:00 2001
From: Wim Brand <fornax@fornaxian.com>
Date: Sat, 12 Jan 2019 23:21:50 +0100
Subject: [PATCH] Docker support

---
 Makefile          | 12 +++++++++--
 docker/Dockerfile | 16 ++++++++++++++
 docker/main.go    | 55 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+), 2 deletions(-)
 create mode 100644 docker/Dockerfile
 create mode 100644 docker/main.go

diff --git a/Makefile b/Makefile
index c8708ae..0f44be4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-run: 
+run:
 	${MAKE} -j2 backgroundrun backgroundts
 build:
 	tsc res/static/res/typescript/lib/*.ts --outFile res/static/res/script/pixellib.js \
@@ -12,5 +12,13 @@ deps:
 backgroundrun:
 	go run main.go
 backgroundts:
-	tsc --watch --project res/static/res/typescript/home 
+	tsc --watch --project res/static/res/typescript/home
 	            --project res/static/res/typescript/textupload
+
+docker:
+	go build -o docker/pixeldrain-web docker/main.go
+	chmod +x docker/pixeldrain-web
+	docker build --tag pixeldrain-web -f docker/Dockerfile .
+	rm docker/pixeldrain-web
+
+.PHONY: docker
diff --git a/docker/Dockerfile b/docker/Dockerfile
new file mode 100644
index 0000000..b417fec
--- /dev/null
+++ b/docker/Dockerfile
@@ -0,0 +1,16 @@
+FROM ubuntu
+
+RUN mkdir -p \
+	/bin \
+	/opt/pixeldrain/res
+
+COPY docker/pixeldrain-web /bin/pixeldrain-web
+COPY res /opt/pixeldrain/res
+
+EXPOSE 8081
+
+ENV api_url_external="" \
+	api_url_internal="" \
+	debug_mode=""
+
+ENTRYPOINT [ "/bin/pixeldrain-web" ]
diff --git a/docker/main.go b/docker/main.go
new file mode 100644
index 0000000..fc309bc
--- /dev/null
+++ b/docker/main.go
@@ -0,0 +1,55 @@
+package main
+
+import (
+	"net/http"
+	"os"
+
+	"fornaxian.com/pixeldrain-web/init/conf"
+	"fornaxian.com/pixeldrain-web/webcontroller"
+
+	"github.com/Fornaxian/log"
+	"github.com/julienschmidt/httprouter"
+)
+
+// This is just a launcher for the web server. During testing the app would
+// be directly embedded by another Go project. And when deployed it will run
+// independently.
+func main() {
+	log.Info("Starting web UI server in docker mode (PID %v)", os.Getpid())
+
+	var webconf = &conf.PixelWebConfig{
+		StaticResourceDir: "/opt/pixeldrain/res/static",
+		TemplateDir:       "/opt/pixeldrain/res/template",
+	}
+
+	if webconf.APIURLExternal, _ = os.LookupEnv("api_url_external"); webconf.APIURLExternal == "" {
+		webconf.APIURLExternal = "/api"
+	}
+	if webconf.APIURLInternal, _ = os.LookupEnv("api_url_internal"); webconf.APIURLInternal == "" {
+		panic("internal API URL is required. Please set api_url_internal")
+	}
+
+	// Check debug mode. When debug mode is enabled debug logging will be
+	// enabled, templates will be parsed on every request and analytics tracking
+	// will be disabled
+	switch d, _ := os.LookupEnv("debug_mode"); d {
+	case "1", "yes", "y", "true":
+		webconf.DebugMode = true
+		log.SetLogLevel(log.LevelDebug)
+	default:
+		webconf.DebugMode = false
+		log.SetLogLevel(log.LevelInfo)
+	}
+
+	// Web path prefix
+	prefix, _ := os.LookupEnv("api_path_prefix")
+
+	// Init the http router
+	r := httprouter.New()
+	webcontroller.New(r, prefix, webconf)
+
+	err := http.ListenAndServe(":8081", r)
+	if err != nil {
+		log.Error("Can't listen and serve Pixeldrain Web: %v", err)
+	}
+}