.drone.yml

@@ -31,6 +31,13 @@ steps:
       - uname -r
       - hadolint --version
 
+  - name: golang
+    pull: always
+    image: docker.io/library/golang:1.18.5-alpine3.16
+    commands:
+      - uname -r
+      - go version
+
 ---
 kind: pipeline
 type: docker
@@ -47,6 +54,9 @@ trigger:
 depends_on:
   - pull
 
+environment:
+  CGO_ENABLED: 0
+
 steps:
   - name: hugo-extended
     pull: if-not-exists
@@ -57,6 +67,44 @@ steps:
       - hugo version
       - hugo --gc=true --minify
 
+  - name: go fmt
+    image: docker.io/library/golang:1.18.5-alpine3.16
+    volumes:
+      - name: gopath
+        path: /go
+    depends_on:
+      - clone
+    commands:
+      - go fmt
+
+  - name: go vet
+    image: docker.io/library/golang:1.18.5-alpine3.16
+    volumes:
+      - name: gopath
+        path: /go
+    depends_on:
+      - go fmt
+    commands:
+      - go vet
+
+  - name: go build
+    pull: if-not-exists
+    image: docker.io/library/golang:1.18.5-alpine3.16
+    volumes:
+      - name: gopath
+        path: /go
+    depends_on:
+      - go vet
+      # wait until the site is output into './public'.
+      - hugo-extended
+    commands:
+      - go build -v -ldflags "-s -w -X main.Version=${DRONE_COMMIT}" .
+
+volumes:
+  - name: gopath
+    temp: {}
+
+
 ---
 kind: pipeline
 type: docker
@@ -178,6 +226,9 @@ node:
 depends_on:
   - build
 
+environment:
+  CGO_ENABLED: 0
+
 steps:
   - name: hugo-extended
     pull: if-not-exists
@@ -204,12 +255,47 @@ steps:
       - hadolint --version
       - hadolint Dockerfile
 
+  - name: go fmt
+    image: docker.io/library/golang:1.18.5-alpine3.16
+    volumes:
+      - name: gopath
+        path: /go
+    depends_on:
+      - clone
+    commands:
+      - go fmt
+
+  - name: go vet
+    image: docker.io/library/golang:1.18.5-alpine3.16
+    volumes:
+      - name: gopath
+        path: /go
+    depends_on:
+      - go fmt
+    commands:
+      - go vet
+
+  - name: go build
+    image: docker.io/library/golang:1.18.5-alpine3.16
+    volumes:
+      - name: gopath
+        path: /go
+    depends_on:
+      - go vet
+      # wait until the site is output into './public'.
+      - hugo-extended
+    commands:
+      - go build -v -ldflags "-s -w -X main.Version=${DRONE_COMMIT}" .
+
   - name: build
     pull: always
     image: tmaier/docker-compose:latest
     depends_on:
       - rm-intermediate
       - hadolint
+      - go fmt
+      - go vet
+      - go build
     volumes:
       - name: s
         path: /var/run/docker.sock
@@ -237,6 +323,8 @@ volumes:
   - name: s
     host:
       path: /var/run/docker.sock
+  - name: gopath
+    temp: {}
 
 
 ---

.pre-commit-config.yaml

@@ -19,4 +19,11 @@ repos:
         language: system
         entry: yamllint .
         pass_filenames: false
+  - repo: https://github.com/dnephin/pre-commit-golang
+    rev: v0.5.0
+    hooks:
+      - id: go-mod-tidy
+      - id: go-unit-tests
+      - id: golangci-lint
+      - id: go-build
 ...

Dockerfile

@@ -1,28 +1,25 @@
-FROM immawanderer/fedora-hugo:linux-amd64 AS hugobuild
-RUN mkdir -pv /homepage
-COPY . /homepage
+FROM docker.io/immawanderer/fedora-hugo:linux-amd64 AS hugobuild
 
 WORKDIR /homepage
 
+COPY . .
+
 RUN git submodule init \
-&& git submodule update --recursive \
-&& hugo version
-# "DL3059 info: Multiple consecutive `RUN` instructions.
-# Consider consolidation."
-# hadolint ignore=DL3059
-RUN hugo --minify --gc=true
+	&& git submodule update --recursive \
+	&& hugo version \
+	&& hugo --minify --gc=true --cleanDestinationDir
 
-WORKDIR /
+FROM docker.io/library/golang:1.18.5-alpine3.16 AS gobuild
+COPY --from=hugobuild /homepage/ /homepage/
 
-FROM nginx:mainline-alpine
-COPY --from=hugobuild /homepage/public/ /usr/share/nginx/html
+WORKDIR /homepage
 
-# tripple slash reference
-# https://stackoverflow.com/questions/5190966/using-sed-to-insert-tabs/5191165#5191165
-RUN sed -i -e 's/^worker_processes  auto;/worker_processes auto;/'\
- -e "/^events {$/ a \\\tmulti_accept on;\n\tuse epoll;"\
- -e "/^http {$/ a \\\tserver_tokens off;\n\tetag off;\n"\
- -e 's/#tcp_nopush/tcp_nopush/'\
- -e "/tcp_nopush/ a \\\ttcp_nodelay on;\n\terror_page 404 /404.html;"\
- -e "s/^    */$(printf '\t')/"\
- /etc/nginx/nginx.conf
+ARG VCS_REF=development
+
+RUN CGO_ENABLED=0 GOFLAGS='-trimpath -mod=readonly -modcacherw' \
+	go build -o homepage-app -v -ldflags "-s -w -X main.version=$VCS_REF" .
+
+FROM scratch
+COPY --from=gobuild /homepage/homepage-app /homepage
+
+ENTRYPOINT ["/homepage"]

docker-compose.yml

@@ -10,7 +10,7 @@ services:
       - internal-nw
       - default
     ports:
-      - 127.0.0.1:1314:80
+      - 127.0.0.1:1314:1314
     restart: always
     volumes:
       # So that traefik can listen to the Docker events
@@ -26,7 +26,7 @@ services:
     restart: always
     labels:
       - traefik.enable=true
-      - traefik.http.services.homepage.loadbalancer.server.port=80
+      - traefik.http.services.homepage.loadbalancer.server.port=1314
       - traefik.http.routers.homepage.rule=Host(`localhost`) || Host(`127.0.0.1`) || Host(`homepage`) || Host(`6426tqrh4y5uobmo5y2csaip3m3avmjegd2kpa24sadekpxglbm34aqd.onion`)
       # ref: https://stackoverflow.com/a/61976953
       # ref: https://github.com/traefik/traefik/issues/563

go.mod

@@ -0,0 +1,3 @@
+module git.dotya.ml/dotya.ml/homepage
+
+go 1.18

main.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"embed"
+	"io/fs"
+	"log"
+	"net/http"
+)
+
+var version = "development"
+
+//go:embed public/*
+var embeddedPublic embed.FS
+
+func main() {
+	root, err := fs.Sub(embeddedPublic, "public")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fs := http.FileServer(http.FS(root))
+
+	http.Handle("/", fs)
+
+	log.Printf("app built from revision '%s'\n", version)
+	log.Print("Listening on :1314...")
+
+	err = http.ListenAndServe(":1314", nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+}