docker support, added drone ci

.drone.yml

@@ -0,0 +1,18 @@
+
+kind: pipeline
+type: docker
+name: default
+steps:
+  - name: build & publish
+    image: plugins/docker
+    settings:
+      registry: registry.boehm.sh
+      repo: registry.boehm.sh/philipp/a2s-steam-server
+      tags: [ "${DRONE_COMMIT_SHA:0:7}","latest" ]
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+trigger:
+  action:
+  - labeled

Dockerfile

@@ -0,0 +1,39 @@
+# GO Repo base repo
+FROM golang:alpine3.14 as builder
+
+RUN apk add git
+
+# Add Maintainer Info
+LABEL maintainer="<Philipp Böhm>"
+
+RUN mkdir /app
+ADD . /app
+WORKDIR /app
+
+COPY go.mod go.sum ./
+
+# Download all the dependencies
+RUN go mod download
+
+COPY . .
+
+# Build the Go app
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
+
+# GO Repo base repo
+FROM alpine:latest
+
+RUN apk --no-cache add ca-certificates curl
+
+RUN mkdir /app
+
+WORKDIR /app/
+
+# Copy the Pre-built binary file from the previous stage
+COPY --from=builder /app/main .
+
+# Expose port 8080
+EXPOSE 8080
+
+# Run Executable
+CMD ["./main"]

docker-compose.yml

@@ -0,0 +1,9 @@
+---
+services:
+  steam-server-api:
+    image: registry.boehm.sh/philipp/a2s-steam-server
+    container_name: steam-server-api
+    ports:
+      - 127.0.0.1:8080:8080
+      - ::1:8080:8080
+    restart: unless-stopped