Initial commit

.gitignore

@@ -0,0 +1,3 @@
+rosti.db
+apps-api
+.history/

apps/main.go

@@ -0,0 +1,87 @@
+package apps
+
+import "github.com/rosti-cz/apps-api/common"
+
+func init() {
+	db := common.GetDBConnection()
+	db.AutoMigrate(Label{})
+	db.AutoMigrate(App{})
+}
+
+// Get returns one app
+func Get(name string) (*App, error) {
+	var app App
+
+	db := common.GetDBConnection()
+
+	err := db.First(&app).Where("name = ?", name).Error
+	if err != nil {
+		return nil, err
+	}
+
+	return &app, nil
+}
+
+// List returns all apps located on this node
+func List() (*[]App, error) {
+	var apps []App
+
+	db := common.GetDBConnection()
+
+	err := db.Find(&apps).Error
+	if err != nil {
+		return nil, err
+	}
+
+	return &apps, nil
+}
+
+// New creates new record about application in the database
+func New(name string, SSHPort int, HTTPPort int, image string, CPU string, memory int) error {
+	app := App{
+		Name:     name,
+		SSHPort:  SSHPort,
+		HTTPPort: HTTPPort,
+		Image:    image,
+		CPU:      CPU,
+		Memory:   memory,
+	}
+
+	db := common.GetDBConnection()
+
+	if err := db.Create(app).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Update changes value about app in the database
+func Update(name string, SSHPort int, HTTPPort int, image string, CPU string, memory int) error {
+	var app App
+
+	db := common.GetDBConnection()
+
+	err := db.First(&app).Where("name = ?", name).Error
+	if err != nil {
+		return err
+	}
+
+	err = db.Model(&app).Updates(App{
+		SSHPort:  SSHPort,
+		HTTPPort: HTTPPort,
+		Image:    image,
+		CPU:      CPU,
+		Memory:   memory,
+	}).Error
+
+	return err
+}
+
+// Delete removes records about one app from the database
+func Delete(name string) error {
+	db := common.GetDBConnection()
+
+	err := db.Delete(App{}).Where("name = ?", name).Error
+	return err
+}

apps/types.go

@@ -0,0 +1,26 @@
+package apps
+
+import "github.com/jinzhu/gorm"
+
+// Label holds metadata about the application
+type Label struct {
+	Value string `json:"value"`
+}
+
+// App keeps info about hosted application
+type App struct {
+	gorm.Model
+
+	Name     string  `json:"name" gorm:"primary_key"`
+	SSHPort  int     `json:"ssh_port"`
+	HTTPPort int     `json:"http_port"`
+	Image    string  `json:"image"`
+	Status   string  `json:"status"` // running, data (no container, data only), stopped
+	CPU      string  `json:"cpu"`
+	Memory   int     `json:"memory"` // Limit in MB
+	Labels   []Label `json:"labels"` // username:cx or user_id:1
+
+	MemoryUsage int `json:"memory_usage"` // Usage in MB
+	DiskUsage   int `json:"disk_usage"`   // Usage in MB
+
+}

common/db.go

@@ -0,0 +1,25 @@
+package common
+
+import (
+	"log"
+
+	"github.com/jinzhu/gorm"
+	// This is line from GORM documentation that imports database dialect
+	_ "github.com/jinzhu/gorm/dialects/sqlite"
+)
+
+var db *gorm.DB
+
+func init() {
+	var err error
+
+	db, err = gorm.Open("sqlite3", "rosti.db")
+	if err != nil {
+		log.Fatalln(err)
+	}
+}
+
+// GetDBConnection returns opened connection to the database
+func GetDBConnection() *gorm.DB {
+	return db
+}

go.mod

@@ -0,0 +1,10 @@
+module github.com/rosti-cz/apps-api
+
+go 1.14
+
+require (
+	github.com/jinzhu/gorm v1.9.14
+	github.com/labstack/echo v3.3.10+incompatible
+	github.com/labstack/gommon v0.3.0 // indirect
+	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 // indirect
+)

go.sum

@@ -0,0 +1,56 @@
+github.com/PuerkitoBio/goquery v1.5.1/go.mod h1:GsLWisAFVj4WgDibEWF4pvYnkVQBpKBKeU+7zCJoLcc=
+github.com/andybalholm/cascadia v1.1.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
+github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
+github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
+github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
+github.com/gorilla/mux v1.7.4 h1:VuZ8uybHlWmqV03+zRzdwKL4tUnIp1MAQtp1mIFE1bc=
+github.com/gorilla/mux v1.7.4/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+github.com/jinzhu/gorm v1.9.14 h1:Kg3ShyTPcM6nzVo148fRrcMO6MNKuqtOUwnzqMgVniM=
+github.com/jinzhu/gorm v1.9.14/go.mod h1:G3LB3wezTOWM2ITLzPxEXgSkOXAntiLHS7UdBefADcs=
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.0.1/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/labstack/echo v1.4.4 h1:1bEiBNeGSUKxcPDGfZ/7IgdhJJZx8wV/pICJh4W2NJI=
+github.com/labstack/echo v3.3.10+incompatible h1:pGRcYk231ExFAyoAjAfD85kQzRJCRI8bbnE7CX5OEgg=
+github.com/labstack/echo v3.3.10+incompatible/go.mod h1:0INS7j/VjnFxD4E2wkz67b8cVwCLbBmJyDaka6Cmk1s=
+github.com/labstack/gommon v0.3.0 h1:JEeO0bvc78PKdyHxloTKiF8BD5iGrH8T6MSeGvSgob0=
+github.com/labstack/gommon v0.3.0/go.mod h1:MULnywXg0yavhxWKc+lOruYdAhDwPK9wf0OL7NoOu+k=
+github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
+github.com/mattn/go-colorable v0.1.2 h1:/bC9yWikZXAL9uJdulbSfyVNIR3n3trXl+v8+1sx8mU=
+github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
+github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.9 h1:d5US/mDsogSGW37IV293h//ZFaeajb69h+EHFsv2xGg=
+github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
+github.com/mattn/go-sqlite3 v1.14.0 h1:mLyGNKR8+Vv9CAU7PphKa2hkEqxxhn8i32J6FPj1/QA=
+github.com/mattn/go-sqlite3 v1.14.0/go.mod h1:JIl7NbARA7phWnGvh0LKTyg7S9BA+6gx71ShQilpsus=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+github.com/valyala/fasttemplate v1.0.1 h1:tY9CJiPnMXf1ERmG2EyK7gNUd+c6RKGD0IfU8WdUSz8=
+github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3 h1:0GoQqolDA55aaLxZyTzK/Y2ePZzZTUrRacwib7cNsYQ=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e h1:3G+cUijn7XD+S4eJFddp53Pv7+slrESplyjG25HgL+k=
+golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a h1:aYOabOQFp6Vj6W1F80affTUvO9UxmJRx8K0gsfABByQ=
+golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd h1:xhmwyvizuTgC2qz7ZlMluP20uW+C3Rm0FD/WLDX8884=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

main.go

@@ -0,0 +1,120 @@
+package main
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo"
+	"github.com/rosti-cz/apps-api/apps"
+	"github.com/rosti-cz/apps-api/common"
+	"github.com/rosti-cz/apps-api/nodes"
+)
+
+// JSONIndent Indendation of JSON output format
+const JSONIndent = "  "
+
+func main() {
+	// Close database at the end
+	db := common.GetDBConnection()
+	defer db.Close()
+
+	// API
+	e := echo.New()
+
+	// Returns list of apps
+	e.GET("/v1/apps", func(c echo.Context) error {
+		apps, err := apps.List()
+
+		if err != nil {
+			return c.JSONPretty(http.StatusInternalServerError, Message{Message: err.Error()}, JSONIndent)
+		}
+
+		return c.JSON(http.StatusOK, apps)
+	})
+
+	// Returns one app
+	e.GET("/v1/apps/:name", func(c echo.Context) error {
+		name := c.Param("name")
+
+		app, err := apps.Get(name)
+		if err != nil {
+			return c.JSONPretty(http.StatusInternalServerError, Message{Message: err.Error()}, JSONIndent)
+		}
+
+		return c.JSON(http.StatusOK, app)
+	})
+
+	// Create a new app
+	e.POST("/v1/apps", func(c echo.Context) error {
+		app := apps.App{}
+		err := c.Bind(&app)
+		if err != nil {
+			return c.JSONPretty(http.StatusBadRequest, Message{Message: err.Error()}, JSONIndent)
+		}
+
+		err = apps.New(app.Name, app.SSHPort, app.HTTPPort, app.Image, app.CPU, app.Memory)
+		if err != nil {
+			return c.JSONPretty(http.StatusInternalServerError, Message{Message: err.Error()}, JSONIndent)
+		}
+
+		return c.JSON(http.StatusOK, map[string]string{})
+	})
+
+	// Update existing app
+	e.PUT("/v1/apps/:name", func(c echo.Context) error {
+		name := c.Param("name")
+
+		app := apps.App{}
+		err := c.Bind(&app)
+		if err != nil {
+			return c.JSONPretty(http.StatusBadRequest, Message{Message: err.Error()}, JSONIndent)
+		}
+
+		err = apps.Update(name, app.SSHPort, app.HTTPPort, app.Image, app.CPU, app.Memory)
+		if err != nil {
+			return c.JSONPretty(http.StatusInternalServerError, Message{Message: err.Error()}, JSONIndent)
+		}
+
+		return c.JSON(http.StatusOK, map[string]string{})
+	})
+
+	// Stop existing app
+	e.PUT("/v1/apps/:name/stop", func(c echo.Context) error {
+		return c.JSON(http.StatusOK, map[string]string{})
+	})
+
+	// Start existing app
+	e.PUT("/v1/apps/:name/start", func(c echo.Context) error {
+		return c.JSON(http.StatusOK, map[string]string{})
+	})
+
+	// Stop existing app
+	e.PUT("/v1/apps/:name/restart", func(c echo.Context) error {
+		return c.JSON(http.StatusOK, map[string]string{})
+	})
+
+	// Rebuilds existing app, it keeps the data but created the container again
+	e.PUT("/v1/apps/:name/rebuild", func(c echo.Context) error {
+		return c.JSON(http.StatusOK, map[string]string{})
+	})
+
+	// Delete one app
+	e.DELETE("/v1/apps/:name", func(c echo.Context) error {
+		name := c.Param("name")
+
+		err := apps.Delete(name)
+		if err != nil {
+			return c.JSONPretty(http.StatusInternalServerError, Message{Message: err.Error()}, JSONIndent)
+		}
+
+		return c.JSON(http.StatusOK, Message{Message: "deleted"})
+	})
+
+	// Return info about the node including performance index
+	e.GET("/v1/node", func(c echo.Context) error {
+		node := nodes.GetNodeInfo()
+
+		return c.JSON(http.StatusOK, node)
+	})
+
+	e.Logger.Fatal(e.Start(":1323"))
+}

nodes/main.go

@@ -0,0 +1,15 @@
+package nodes
+
+// Node keeps info about server
+type Node struct {
+	PerformanceIndex int
+}
+
+// GetNodeInfo returns information about this node
+func GetNodeInfo() *Node {
+	node := Node{
+		PerformanceIndex: 0,
+	}
+
+	return &node
+}

types.go

@@ -0,0 +1,5 @@
+package main
+
+type Message struct {
+	Message string `json:"message"`
+}