Move into api routers instead of main

services/entry/cmd/app/main.go

@@ -0,0 +1,19 @@
+package app
+
+import (
+	"serverctl/pkg/api"
+	"serverctl/pkg/infrastructure"
+	"serverctl/pkg/infrastructure/dependencies"
+)
+
+func Run() {
+	d := dependencies.New()
+	d.Logger.Info("Starting serverctl")
+
+	infrastructure.AddSeedData(d.Database, d.Logger)
+
+	api.
+		NewServerctlApi(d).
+		SetupApi().
+		RunApi()
+}

services/entry/main.go

@@ -1,363 +1,7 @@
 package main
 
-import (
+import "serverctl/cmd/app"
-	"context"
-	"fmt"
-	"github.com/dgraph-io/ristretto"
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/client"
-	"github.com/eko/gocache/cache"
-	"github.com/eko/gocache/metrics"
-	"github.com/eko/gocache/store"
-	"github.com/gin-gonic/gin"
-	"github.com/go-co-op/gocron"
-	"github.com/google/uuid"
-	"github.com/jackc/pgx/v4"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
-	"io/ioutil"
-	"log"
-	"net/http"
-	"os"
-	"serverctl/pkg/application/applications"
-	"serverctl/pkg/application/projects"
-	"serverctl/pkg/application/users"
-	"serverctl/pkg/db"
-	"serverctl/pkg/db/postgres"
-	"time"
-)
-
-import _ "net/http/pprof"
-
-func setupLogger() *zap.Logger {
-	highPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
-		return lvl >= zapcore.ErrorLevel
-	})
-	lowPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
-		return lvl < zapcore.ErrorLevel
-	})
-	fileDebugging := zapcore.AddSync(ioutil.Discard)
-	fileErrors := zapcore.AddSync(ioutil.Discard)
-
-	consoleDebugging := zapcore.Lock(os.Stdout)
-	consoleErrors := zapcore.Lock(os.Stderr)
-
-	fileEncoder := zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig())
-	_ = zapcore.NewConsoleEncoder(zap.NewDevelopmentEncoderConfig())
-
-	core := zapcore.NewTee(
-		zapcore.NewCore(fileEncoder, fileErrors, highPriority),
-		zapcore.NewCore(fileEncoder, consoleErrors, highPriority),
-		zapcore.NewCore(fileEncoder, fileDebugging, lowPriority),
-		zapcore.NewCore(fileEncoder, consoleDebugging, lowPriority),
-	)
-
-	logger := zap.New(core)
-	defer logger.Sync()
-	return logger
-}
-func BasicAuthMiddleware(l *zap.Logger, us *users.Service) gin.HandlerFunc {
-	return func(c *gin.Context) {
-		username, password, hasAuth := c.Request.BasicAuth()
-		if !hasAuth {
-			l.Info("user could not be authenticated",
-				zap.String("username", username))
-			c.Header("WWW-Authenticate", "Basic realm=serverctl")
-			c.Abort()
-			c.JSON(http.StatusUnauthorized, gin.H{"message": "credentials were invalid (authorization header missing)"})
-			return
-		}
-
-		user, err := us.Authenticate(c.Request.Context(), username, password)
-		if err != nil {
-			l.Info("user could not be authenticated",
-				zap.String("username", username))
-			c.Abort()
-			c.Header("WWW-Authenticate", "Basic realm=serverctl")
-			c.JSON(http.StatusUnauthorized, gin.H{"message": "credentials were invalid (credentials didn't match)"})
-			return
-		}
-
-		l.Debug("user has been authenticated",
-			zap.Int("userId", user.Id),
-			zap.String("email", user.Email))
-		c.Set("userId", user.Id)
-		c.Next()
-	}
-}
-func setupApi(l *zap.Logger, cc *cache.MetricCache, us *users.Service, ps *projects.Service, as *applications.Service) {
-	l.Info("Setting up serverctl setupApi (using gin)")
-
-	r := gin.Default()
-
-	promHandler := func() gin.HandlerFunc {
-		h := promhttp.Handler()
-
-		return func(c *gin.Context) {
-			h.ServeHTTP(c.Writer, c.Request)
-		}
-	}
-	r.GET("/metrics", promHandler())
-
-	r.POST("/auth/register", func(c *gin.Context) {
-		type RegisterUser struct {
-			Email    string `json:"email" binding:"required"`
-			Password string `json:"password" binding:"required"`
-		}
-		var registerUser RegisterUser
-		if err := c.BindJSON(&registerUser); err != nil {
-			return
-		}
-
-		createUser, err := us.Create(registerUser.Email, registerUser.Password)
-		if err != nil {
-			c.JSON(http.StatusBadRequest, gin.H{"message": "you have provided invalid input"})
-			return
-		}
-
-		c.JSON(http.StatusCreated, gin.H{"message": "user has been registered", "userId": createUser})
-	})
-
-	projectsApi := r.Group("/projects", BasicAuthMiddleware(l, us))
-	projectsApi.POST("/", func(c *gin.Context) {
-		type CreateProjectRequest struct {
-			Name string `json:"name" binding:"required"`
-		}
-		var createProjectRequest CreateProjectRequest
-		if err := c.BindJSON(&createProjectRequest); err != nil {
-			return
-		}
-
-		userId, _ := c.Get("userId")
-		createProjectId, err := ps.CreateProject(c.Request.Context(), userId.(int), createProjectRequest.Name)
-		if err != nil {
-			c.JSON(http.StatusBadRequest, gin.H{"message": "you have provided invalid input"})
-			return
-		}
-
-		c.JSON(http.StatusCreated, gin.H{"message": "project has been created", "projectId": createProjectId})
-	})
-	projectsApi.GET("/", func(c *gin.Context) {
-		userId, _ := c.Get("userId")
-
-		projectsArr, err := ps.Get(c.Request.Context(), userId.(int))
-		if err != nil {
-			l.Warn(err.Error())
-			return
-		}
-
-		type GetProjectMembers struct {
-			MemberId   int    `json:"memberId" binding:"required"`
-			MemberRole string `json:"memberRole" binding:"required"`
-		}
-		type GetProject struct {
-			Id      int                  `json:"id" binding:"required"`
-			Name    string               `json:"name" binding:"required"`
-			Members []*GetProjectMembers `json:"members" binding:"required"`
-		}
-
-		membersAsGetProjectMembers := func(projectMembers []projects.ProjectMember) []*GetProjectMembers {
-			gpm := make([]*GetProjectMembers, len(projectMembers))
-
-			for i, pm := range projectMembers {
-				gpm[i] = &GetProjectMembers{
-					MemberId:   pm.MemberId,
-					MemberRole: pm.Role,
-				}
-			}
-
-			return gpm
-		}
-
-		getProject := make([]GetProject, 0)
-		for _, p := range projectsArr {
-			getProject = append(getProject, GetProject{
-				Id:      p.Id,
-				Name:    p.Name,
-				Members: membersAsGetProjectMembers(p.Members),
-			})
-		}
-		c.JSON(http.StatusOK, getProject)
-	})
-
-	applications := r.Group("/applications", BasicAuthMiddleware(l, us))
-	applications.POST("/", func(c *gin.Context) {
-		type CreateApplicationRequest struct {
-			ProjectId int    `json:"projectId" binding:"required"`
-			Name      string `json:"name" binding:"required"`
-		}
-
-		var createApplicationRequest CreateApplicationRequest
-		if err := c.BindJSON(&createApplicationRequest); err != nil {
-			return
-		}
-
-		userId, _ := c.Get("userId")
-		applicationId, err := as.CreateApplication(c.Request.Context(), createApplicationRequest.Name, userId.(int), createApplicationRequest.ProjectId)
-		if err != nil {
-			c.JSON(http.StatusBadRequest, gin.H{"message": "you have provided invalid input"})
-			return
-		}
-
-		c.JSON(http.StatusCreated, gin.H{"message": "application has been created", "applicationId": applicationId})
-	})
-
-	containers := r.Group("/containers", BasicAuthMiddleware(l, us))
-	containers.GET("/", func(c *gin.Context) {
-		type container struct {
-			Name string `json:"name"`
-		}
-		var msg struct {
-			Containers []container `json:"containers"`
-		}
-
-		get, err := cc.Get("docker-containers")
-		if err != nil {
-			c.JSON(http.StatusInternalServerError, gin.H{"message": "could not get containers from container runtime"})
-			return
-		}
-
-		msg.Containers = []container{}
-		for _, cont := range get.([]types.Container) {
-			msg.Containers = append(msg.Containers, container{
-				Name: cont.Names[0],
-			})
-		}
-
-		c.JSON(http.StatusOK, msg)
-	})
-
-	r.Run(":8080")
-
-}
-func setupDocker(l *zap.Logger) *client.Client {
-	l.Info("Setting up Docker")
-	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
-	if err != nil {
-		panic(err)
-	}
-
-	return cli
-}
-func setupCache(l *zap.Logger) *cache.MetricCache {
-	l.Info("Setting up cache")
-	ristrettoCache, err := ristretto.NewCache(&ristretto.Config{
-		NumCounters: 1000,
-		MaxCost:     100_000_000,
-		BufferItems: 64,
-	})
-	promMetrics := metrics.NewPrometheus("serverctl")
-
-	if err != nil {
-		panic(err)
-	}
-	ristrettoStore := store.NewRistretto(ristrettoCache, nil)
-
-	cacheManager := cache.New(ristrettoStore)
-	metricsCache := cache.NewMetric(promMetrics, cacheManager)
-
-	return metricsCache
-}
-func setupCron(l *zap.Logger, cm *cache.MetricCache, cc *client.Client) {
-	l.Info("Setting up job scheduler (cron)")
-
-	s := gocron.NewScheduler(time.UTC)
-
-	s.Every(10).Second().Do(func() {
-		l.Debug("getting container list")
-		list, err := cc.ContainerList(context.Background(), types.ContainerListOptions{})
-		if err != nil {
-			l.Warn(err.Error())
-			return
-		}
-
-		err = cm.Set("docker-containers", list, &store.Options{
-			Cost: 2,
-		})
-		if err != nil {
-			l.Warn(err.Error())
-			return
-		}
-	})
-
-	s.StartAsync()
-}
 
 func main() {
-	logger := setupLogger()
+	app.Run()
-	logger.Info("Starting serverctl")
-
-	cacheM := setupCache(logger)
-	containerClient := setupDocker(logger)
-	setupCron(logger, cacheM, containerClient)
-
-	database := db.NewClient(logger)
-	usersRepository := postgres.NewUsersRepository(database)
-	usersService := users.NewService(logger, usersRepository, cacheM)
-	projectsRepository := postgres.NewProjectsRepository(database)
-	projectsService := projects.NewService(logger, projectsRepository, cacheM)
-	applicationsRepository := postgres.NewApplicationRepository(logger, database)
-	applicationsService := applications.NewService(logger, applicationsRepository)
-
-	setupProfiler()
-	addSeedData(database, usersRepository, projectsRepository, logger)
-	setupApi(logger, cacheM, usersService, projectsService, applicationsService)
-}
-
-func setupProfiler() {
-	go func() {
-		log.Println(http.ListenAndServe(":6060", nil))
-	}()
-}
-
-func addSeedData(database *db.Client, ur users.Repository, pr projects.Repository, logger *zap.Logger) {
-	conn := database.GetConn(context.Background())
-	defer conn.Release()
-
-	var numRows int
-	err := conn.QueryRow(context.Background(), "select count(id) from sctl_user").Scan(&numRows)
-	if err != nil {
-		panic(err)
-	}
-
-	if numRows == 0 {
-		addTestData(database, ur, pr, logger)
-	}
-}
-
-func addTestData(database *db.Client, ur users.Repository, pr projects.Repository, logger *zap.Logger) {
-	ctx := context.Background()
-
-	for jobs := 0; jobs < 10; jobs++ {
-		go func(batchNr int) {
-			conn := database.GetConn(ctx)
-			defer conn.Release()
-			batch := &pgx.Batch{}
-			numInserts := 5_000
-			for i := 0; i < numInserts; i++ {
-				var (
-					user *users.CreateUser
-					err  error
-				)
-
-				user, err = users.NewCreateUser(fmt.Sprintf("%s@test.com", uuid.New().String()), "password", users.NewPlainTextPasswordHasher())
-				if err != nil {
-					panic(err)
-				}
-
-				batch.Queue("INSERT INTO sctl_user(email, password_hash) values ($1, $2)", user.Email, user.PasswordHash)
-			}
-			res := conn.SendBatch(ctx, batch)
-			for i := 0; i < numInserts; i++ {
-				_, err := res.Exec()
-				if err != nil {
-					return
-				}
-			}
-
-			logger.Debug("sent batch",
-				zap.Int("batchId", batchNr))
-		}(jobs)
-	}
 }

services/entry/pkg/api/api.go

@@ -0,0 +1,58 @@
+package api
+
+import (
+	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
+	"log"
+	"net/http"
+	"serverctl/pkg/api/routers"
+	"serverctl/pkg/infrastructure/dependencies"
+)
+
+// Used for profiling
+import _ "net/http/pprof"
+
+type ServerctlApi struct {
+	logger       *zap.Logger
+	router       *gin.Engine
+	routingTable *routers.RoutingTable
+	dependencies *dependencies.Dependencies
+}
+
+func NewServerctlApi(dependencies *dependencies.Dependencies) *ServerctlApi {
+	return &ServerctlApi{dependencies: dependencies}
+}
+
+func (a *ServerctlApi) SetupApi() *ServerctlApi {
+	a.dependencies.Logger.Info("Setting up serverctl setupApi (using gin)")
+	a.router = gin.Default()
+
+	a.setupCommonMiddleware().setupRoutingTable()
+
+	return a
+}
+
+func (a *ServerctlApi) RunApi() {
+	runProfilerHttpServer()
+
+	err := a.router.Run(":8080")
+	if err != nil {
+		panic(err)
+	}
+}
+
+func (a *ServerctlApi) setupCommonMiddleware() *ServerctlApi {
+	return a
+}
+
+func (a *ServerctlApi) setupRoutingTable() {
+	a.routingTable = routers.
+		NewRoutingTable(a.router, a.dependencies).
+		Setup()
+}
+
+func runProfilerHttpServer() {
+	go func() {
+		log.Println(http.ListenAndServe(":6060", nil))
+	}()
+}

services/entry/pkg/api/middleware/auth.go

@@ -0,0 +1,38 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
+	"net/http"
+	"serverctl/pkg/application/users"
+)
+
+func BasicAuthMiddleware(l *zap.Logger, us *users.Service) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		username, password, hasAuth := c.Request.BasicAuth()
+		if !hasAuth {
+			l.Info("user could not be authenticated",
+				zap.String("username", username))
+			c.Header("WWW-Authenticate", "Basic realm=serverctl")
+			c.Abort()
+			c.JSON(http.StatusUnauthorized, gin.H{"message": "credentials were invalid (authorization header missing)"})
+			return
+		}
+
+		user, err := us.Authenticate(c.Request.Context(), username, password)
+		if err != nil {
+			l.Info("user could not be authenticated",
+				zap.String("username", username))
+			c.Abort()
+			c.Header("WWW-Authenticate", "Basic realm=serverctl")
+			c.JSON(http.StatusUnauthorized, gin.H{"message": "credentials were invalid (credentials didn't match)"})
+			return
+		}
+
+		l.Debug("user has been authenticated",
+			zap.Int("userId", user.Id),
+			zap.String("email", user.Email))
+		c.Set("userId", user.Id)
+		c.Next()
+	}
+}

services/entry/pkg/api/routers/applications.go

@@ -0,0 +1,32 @@
+package routers
+
+import (
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"serverctl/pkg/api/middleware"
+	"serverctl/pkg/infrastructure/dependencies"
+)
+
+func applicationsRouter(router *gin.Engine, d *dependencies.Dependencies) {
+	applications := router.Group("/applications", middleware.BasicAuthMiddleware(d.Logger, d.UsersService))
+	applications.POST("/", func(c *gin.Context) {
+		type CreateApplicationRequest struct {
+			ProjectId int    `json:"projectId" binding:"required"`
+			Name      string `json:"name" binding:"required"`
+		}
+
+		var createApplicationRequest CreateApplicationRequest
+		if err := c.BindJSON(&createApplicationRequest); err != nil {
+			return
+		}
+
+		userId, _ := c.Get("userId")
+		applicationId, err := d.ApplicationsService.CreateApplication(c.Request.Context(), createApplicationRequest.Name, userId.(int), createApplicationRequest.ProjectId)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"message": "you have provided invalid input"})
+			return
+		}
+
+		c.JSON(http.StatusCreated, gin.H{"message": "application has been created", "applicationId": applicationId})
+	})
+}

services/entry/pkg/api/routers/auth.go

@@ -0,0 +1,28 @@
+package routers
+
+import (
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"serverctl/pkg/infrastructure/dependencies"
+)
+
+func authRouter(router *gin.Engine, d *dependencies.Dependencies) {
+	router.POST("/auth/register", func(c *gin.Context) {
+		type RegisterUser struct {
+			Email    string `json:"email" binding:"required"`
+			Password string `json:"password" binding:"required"`
+		}
+		var registerUser RegisterUser
+		if err := c.BindJSON(&registerUser); err != nil {
+			return
+		}
+
+		createUser, err := d.UsersService.Create(registerUser.Email, registerUser.Password)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"message": "you have provided invalid input"})
+			return
+		}
+
+		c.JSON(http.StatusCreated, gin.H{"message": "user has been registered", "userId": createUser})
+	})
+}

services/entry/pkg/api/routers/containers.go

@@ -0,0 +1,36 @@
+package routers
+
+import (
+	"github.com/docker/docker/api/types"
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"serverctl/pkg/api/middleware"
+	"serverctl/pkg/infrastructure/dependencies"
+)
+
+func containersRouter(router *gin.Engine, d *dependencies.Dependencies) {
+	containers := router.Group("/containers", middleware.BasicAuthMiddleware(d.Logger, d.UsersService))
+	containers.GET("/", func(c *gin.Context) {
+		type container struct {
+			Name string `json:"name"`
+		}
+		var msg struct {
+			Containers []container `json:"containers"`
+		}
+
+		get, err := d.Cache.Get("docker-containers")
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"message": "could not get containers from container runtime"})
+			return
+		}
+
+		msg.Containers = []container{}
+		for _, cont := range get.([]types.Container) {
+			msg.Containers = append(msg.Containers, container{
+				Name: cont.Names[0],
+			})
+		}
+
+		c.JSON(http.StatusOK, msg)
+	})
+}

services/entry/pkg/api/routers/lib.go

@@ -0,0 +1,25 @@
+package routers
+
+import (
+	"github.com/gin-gonic/gin"
+	"serverctl/pkg/infrastructure/dependencies"
+)
+
+type RoutingTable struct {
+	router       *gin.Engine
+	dependencies *dependencies.Dependencies
+}
+
+func NewRoutingTable(router *gin.Engine, dependencies *dependencies.Dependencies) *RoutingTable {
+	return &RoutingTable{router: router, dependencies: dependencies}
+}
+
+func (t *RoutingTable) Setup() *RoutingTable {
+	metricsRouter(t.router)
+	authRouter(t.router, t.dependencies)
+	projectsRouter(t.router, t.dependencies)
+	applicationsRouter(t.router, t.dependencies)
+	containersRouter(t.router, t.dependencies)
+
+	return t
+}

services/entry/pkg/api/routers/metrics.go

@@ -0,0 +1,18 @@
+package routers
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+)
+
+func metrics() gin.HandlerFunc {
+	h := promhttp.Handler()
+
+	return func(c *gin.Context) {
+		h.ServeHTTP(c.Writer, c.Request)
+	}
+}
+
+func metricsRouter(router *gin.Engine) {
+	router.GET("/metrics", metrics())
+}

services/entry/pkg/api/routers/projects.go

@@ -0,0 +1,73 @@
+package routers
+
+import (
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"serverctl/pkg/api/middleware"
+	"serverctl/pkg/application/projects"
+	"serverctl/pkg/infrastructure/dependencies"
+)
+
+func projectsRouter(router *gin.Engine, d *dependencies.Dependencies) {
+	projectsApi := router.Group("/projects", middleware.BasicAuthMiddleware(d.Logger, d.UsersService))
+	projectsApi.POST("/", func(c *gin.Context) {
+		type CreateProjectRequest struct {
+			Name string `json:"name" binding:"required"`
+		}
+		var createProjectRequest CreateProjectRequest
+		if err := c.BindJSON(&createProjectRequest); err != nil {
+			return
+		}
+
+		userId, _ := c.Get("userId")
+		createProjectId, err := d.ProjectsService.CreateProject(c.Request.Context(), userId.(int), createProjectRequest.Name)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"message": "you have provided invalid input"})
+			return
+		}
+
+		c.JSON(http.StatusCreated, gin.H{"message": "project has been created", "projectId": createProjectId})
+	})
+	projectsApi.GET("/", func(c *gin.Context) {
+		userId, _ := c.Get("userId")
+
+		projectsArr, err := d.ProjectsService.Get(c.Request.Context(), userId.(int))
+		if err != nil {
+			d.Logger.Warn(err.Error())
+			return
+		}
+
+		type GetProjectMembers struct {
+			MemberId   int    `json:"memberId" binding:"required"`
+			MemberRole string `json:"memberRole" binding:"required"`
+		}
+		type GetProject struct {
+			Id      int                  `json:"id" binding:"required"`
+			Name    string               `json:"name" binding:"required"`
+			Members []*GetProjectMembers `json:"members" binding:"required"`
+		}
+
+		membersAsGetProjectMembers := func(projectMembers []projects.ProjectMember) []*GetProjectMembers {
+			gpm := make([]*GetProjectMembers, len(projectMembers))
+
+			for i, pm := range projectMembers {
+				gpm[i] = &GetProjectMembers{
+					MemberId:   pm.MemberId,
+					MemberRole: pm.Role,
+				}
+			}
+
+			return gpm
+		}
+
+		getProject := make([]GetProject, 0)
+		for _, p := range projectsArr {
+			getProject = append(getProject, GetProject{
+				Id:      p.Id,
+				Name:    p.Name,
+				Members: membersAsGetProjectMembers(p.Members),
+			})
+		}
+		c.JSON(http.StatusOK, getProject)
+	})
+}

services/entry/pkg/infrastructure/dependencies/cache.go

@@ -0,0 +1,29 @@
+package dependencies
+
+import (
+	"github.com/dgraph-io/ristretto"
+	"github.com/eko/gocache/cache"
+	"github.com/eko/gocache/metrics"
+	"github.com/eko/gocache/store"
+	"go.uber.org/zap"
+)
+
+func setupCache(l *zap.Logger) *cache.MetricCache {
+	l.Info("Setting up Cache")
+	ristrettoCache, err := ristretto.NewCache(&ristretto.Config{
+		NumCounters: 1000,
+		MaxCost:     100_000_000,
+		BufferItems: 64,
+	})
+	promMetrics := metrics.NewPrometheus("serverctl")
+
+	if err != nil {
+		panic(err)
+	}
+	ristrettoStore := store.NewRistretto(ristrettoCache, nil)
+
+	cacheManager := cache.New(ristrettoStore)
+	metricsCache := cache.NewMetric(promMetrics, cacheManager)
+
+	return metricsCache
+}

services/entry/pkg/infrastructure/dependencies/cron.go

@@ -0,0 +1,37 @@
+package dependencies
+
+import (
+	"context"
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/client"
+	"github.com/eko/gocache/cache"
+	"github.com/eko/gocache/store"
+	"github.com/go-co-op/gocron"
+	"go.uber.org/zap"
+	"time"
+)
+
+func setupCron(l *zap.Logger, cm *cache.MetricCache, cc *client.Client) {
+	l.Info("Setting up job scheduler (cron)")
+
+	s := gocron.NewScheduler(time.UTC)
+
+	s.Every(10).Second().Do(func() {
+		l.Debug("getting container list")
+		list, err := cc.ContainerList(context.Background(), types.ContainerListOptions{})
+		if err != nil {
+			l.Warn(err.Error())
+			return
+		}
+
+		err = cm.Set("docker-containers", list, &store.Options{
+			Cost: 2,
+		})
+		if err != nil {
+			l.Warn(err.Error())
+			return
+		}
+	})
+
+	s.StartAsync()
+}

services/entry/pkg/infrastructure/dependencies/dependencies.go

@@ -0,0 +1,52 @@
+package dependencies
+
+import (
+	"github.com/eko/gocache/cache"
+	"go.uber.org/zap"
+	"serverctl/pkg/application/applications"
+	"serverctl/pkg/application/projects"
+	"serverctl/pkg/application/users"
+	"serverctl/pkg/db"
+	"serverctl/pkg/db/postgres"
+)
+
+type Dependencies struct {
+	Logger                 *zap.Logger
+	Cache                  *cache.MetricCache
+	Database               *db.Client
+	UsersRepository        users.Repository
+	UsersService           *users.Service
+	ProjectsRepository     projects.Repository
+	ProjectsService        *projects.Service
+	ApplicationsRepository applications.Repository
+	ApplicationsService    *applications.Service
+}
+
+func New() *Dependencies {
+
+	logger := setupLogger()
+
+	cacheM := setupCache(logger)
+	containerClient := setupDocker(logger)
+	setupCron(logger, cacheM, containerClient)
+
+	database := db.NewClient(logger)
+	usersRepository := postgres.NewUsersRepository(database)
+	usersService := users.NewService(logger, usersRepository, cacheM)
+	projectsRepository := postgres.NewProjectsRepository(database)
+	projectsService := projects.NewService(logger, projectsRepository, cacheM)
+	applicationsRepository := postgres.NewApplicationRepository(logger, database)
+	applicationsService := applications.NewService(logger, applicationsRepository)
+
+	return &Dependencies{
+		Logger:                 logger,
+		Cache:                  cacheM,
+		Database:               database,
+		UsersRepository:        usersRepository,
+		UsersService:           usersService,
+		ProjectsRepository:     projectsRepository,
+		ProjectsService:        projectsService,
+		ApplicationsRepository: applicationsRepository,
+		ApplicationsService:    applicationsService,
+	}
+}

services/entry/pkg/infrastructure/dependencies/docker.go

@@ -0,0 +1,16 @@
+package dependencies
+
+import (
+	"github.com/docker/docker/client"
+	"go.uber.org/zap"
+)
+
+func setupDocker(l *zap.Logger) *client.Client {
+	l.Info("Setting up Docker")
+	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
+	if err != nil {
+		panic(err)
+	}
+
+	return cli
+}

services/entry/pkg/infrastructure/dependencies/logger.go

@@ -0,0 +1,36 @@
+package dependencies
+
+import (
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+	"io/ioutil"
+	"os"
+)
+
+func setupLogger() *zap.Logger {
+	highPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
+		return lvl >= zapcore.ErrorLevel
+	})
+	lowPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
+		return lvl < zapcore.ErrorLevel
+	})
+	fileDebugging := zapcore.AddSync(ioutil.Discard)
+	fileErrors := zapcore.AddSync(ioutil.Discard)
+
+	consoleDebugging := zapcore.Lock(os.Stdout)
+	consoleErrors := zapcore.Lock(os.Stderr)
+
+	fileEncoder := zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig())
+	_ = zapcore.NewConsoleEncoder(zap.NewDevelopmentEncoderConfig())
+
+	core := zapcore.NewTee(
+		zapcore.NewCore(fileEncoder, fileErrors, highPriority),
+		zapcore.NewCore(fileEncoder, consoleErrors, highPriority),
+		zapcore.NewCore(fileEncoder, fileDebugging, lowPriority),
+		zapcore.NewCore(fileEncoder, consoleDebugging, lowPriority),
+	)
+
+	logger := zap.New(core)
+	defer logger.Sync()
+	return logger
+}

services/entry/pkg/infrastructure/seedDatabase.go

@@ -0,0 +1,62 @@
+package infrastructure
+
+import (
+	"context"
+	"fmt"
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v4"
+	"go.uber.org/zap"
+	"serverctl/pkg/application/users"
+	"serverctl/pkg/db"
+)
+
+func AddSeedData(database *db.Client, logger *zap.Logger) {
+	conn := database.GetConn(context.Background())
+	defer conn.Release()
+
+	var numRows int
+	err := conn.QueryRow(context.Background(), "select count(id) from sctl_user").Scan(&numRows)
+	if err != nil {
+		panic(err)
+	}
+
+	if numRows == 0 {
+		addTestData(database, logger)
+	}
+}
+
+func addTestData(database *db.Client, logger *zap.Logger) {
+	ctx := context.Background()
+
+	for jobs := 0; jobs < 10; jobs++ {
+		go func(batchNr int) {
+			conn := database.GetConn(ctx)
+			defer conn.Release()
+			batch := &pgx.Batch{}
+			numInserts := 5_000
+			for i := 0; i < numInserts; i++ {
+				var (
+					user *users.CreateUser
+					err  error
+				)
+
+				user, err = users.NewCreateUser(fmt.Sprintf("%s@test.com", uuid.New().String()), "password", users.NewPlainTextPasswordHasher())
+				if err != nil {
+					panic(err)
+				}
+
+				batch.Queue("INSERT INTO sctl_user(email, password_hash) values ($1, $2)", user.Email, user.PasswordHash)
+			}
+			res := conn.SendBatch(ctx, batch)
+			for i := 0; i < numInserts; i++ {
+				_, err := res.Exec()
+				if err != nil {
+					return
+				}
+			}
+
+			logger.Debug("sent batch",
+				zap.Int("batchId", batchNr))
+		}(jobs)
+	}
+}