workshop

Signed-off-by: divinerapier <[email protected]>

Author: divinerapier

Dockerfile

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+# Start from the latest golang base image
+FROM golang:latest
+
+# Add Maintainer Info
+LABEL maintainer="[email protected]"
+
+# Set the Current Working Directory inside the container
+WORKDIR /app
+
+# Copy go mod and sum files
+COPY go.mod go.sum ./
+
+# Download all dependencies. Dependencies will be cached if the go.mod and go.sum files are not changed
+RUN go mod download
+
+# Copy the source from the current directory to the Working Directory inside the container
+COPY . .
+
+# Build the Go app
+RUN go build -o main .
+
+# Expose port 8080 to the outside world
+EXPOSE 8080
+
+# Command to run the executable
+CMD ["./main"]

beer.go

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+package main
+
+import (
+	"sort"
+	"sync"
+)
+
+type Beers struct {
+	beers []Beer
+	mu    sync.Mutex
+}
+
+// sort beers by id
+func (beers *Beers) Len() int {
+	beers.mu.Lock()
+	defer beers.mu.Unlock()
+	return len(beers.beers)
+}
+func (beer *Beers) Less(i, j int) bool {
+	beer.mu.Lock()
+	defer beer.mu.Unlock()
+	return beer.beers[i].ID < beer.beers[j].ID
+}
+func (beer *Beers) Swap(i, j int) {
+	beer.mu.Lock()
+	defer beer.mu.Unlock()
+	beer.beers[i], beer.beers[j] = beer.beers[j], beer.beers[i]
+}
+
+func NewBeers(beers []Beer) *Beers {
+	return &Beers{
+		beers: beers,
+	}
+}
+
+func (bs *Beers) GetRemains() []Beer {
+	bs.mu.Lock()
+	defer bs.mu.Unlock()
+	sort.Sort(bs)
+	return bs.beers
+}
+
+func (bs *Beers) GetByID(id int) (*Beer, bool) {
+	bs.mu.Lock()
+	defer bs.mu.Unlock()
+	for _, beer := range bs.beers {
+		if beer.ID == id {
+			return &beer, true
+		}
+	}
+	return nil, false
+}