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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "encoding/json" | ||
| "io" | ||
| "log" | ||
| "net" | ||
| "os" | ||
| ) | ||
|
|
||
| var ( | ||
| storagePath string | ||
| hostIP string | ||
| dataServePort string | ||
| ) | ||
|
|
||
| func init() { | ||
| // read storage path from environment variable | ||
| storagePath = os.Getenv("STORAGE_PATH") | ||
|
|
||
| // read host ip from environment variable | ||
| hostIP = os.Getenv("HOST_IP") | ||
| dataServePort = os.Getenv("DATA_SERVE_PORT") | ||
| log.Printf("IP:PORT %s:%s\n", hostIP, dataServePort) | ||
|
|
||
| // Write Data Serve IP:PORT to file | ||
| f, err := os.Create(storagePath + "/DATA_SERVE_IP") | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| defer f.Close() | ||
|
|
||
| _, err = f.WriteString(hostIP + ":" + dataServePort) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
| handleConnections() | ||
| } | ||
|
|
||
| func handleConnections() { | ||
| listener, err := net.Listen("tcp", ":"+dataServePort) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| defer listener.Close() | ||
|
|
||
| log.Println("Data Server is running on " + hostIP + ":" + dataServePort) | ||
|
|
||
| for { | ||
| conn, err := listener.Accept() | ||
| if err != nil { | ||
| log.Println("[Error] listener.Accept(): ", err) | ||
| continue | ||
| } | ||
|
|
||
| go handleConnection(conn) | ||
| } | ||
| } | ||
|
|
||
| func handleConnection(conn net.Conn) { | ||
| var req Request | ||
| reader := bufio.NewReader(conn) | ||
|
|
||
| // read request from client | ||
| err := json.NewDecoder(reader).Decode(&req) | ||
| if err != nil { | ||
| log.Println(err) | ||
| return | ||
| } | ||
|
|
||
| // Handle the request | ||
| switch req.Type { | ||
| case "download": | ||
| // open file | ||
| file, err := os.Open(req.Body) | ||
| if err != nil { | ||
| log.Println(err) | ||
| return | ||
| } | ||
| defer file.Close() | ||
|
|
||
| // send file | ||
| _, err = io.Copy(conn, file) | ||
| if err != nil { | ||
| log.Println(err) | ||
| return | ||
| } | ||
|
|
||
| log.Printf("File %s sent to %d", req.Body, conn.RemoteAddr()) | ||
| } | ||
|
|
||
| // close connection | ||
| conn.Close() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| package main | ||
|
|
||
| type Request struct { | ||
| Type string `json:"type"` | ||
| Body string `json:"body"` | ||
| } |
Empty file.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| apiVersion: apps/v1 | ||
| kind: DaemonSet | ||
| metadata: | ||
| name: data-serve-daemonset-disk | ||
| labels: | ||
| app.kubernetes.io/name: data-serve-disk | ||
| spec: | ||
| selector: | ||
| matchLabels: | ||
| app: data-serve | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: data-serve | ||
| spec: | ||
| tolerations: | ||
| # these tolerations are to have the daemonset runnable on control plane nodes | ||
| # remove them if your control plane nodes should not run pods | ||
| - key: node-role.kubernetes.io/control-plane | ||
| operator: Exists | ||
| effect: NoSchedule | ||
| - key: node-role.kubernetes.io/master | ||
| operator: Exists | ||
| effect: NoSchedule | ||
| containers: | ||
| - name: data-serve-container | ||
| image: dasbd72/data-serve:latest | ||
| imagePullPolicy: Always | ||
| ports: | ||
| - containerPort: 12348 | ||
| hostPort: 12348 | ||
| volumeMounts: | ||
| - name: shared-volume | ||
| mountPath: /shared | ||
| env: | ||
| - name: STORAGE_PATH | ||
| value: /shared | ||
| - name: HOST_IP | ||
| valueFrom: | ||
| fieldRef: | ||
| fieldPath: status.hostIP | ||
| - name: DATA_SERVE_PORT | ||
| value: "12348" | ||
| volumes: | ||
| - name: shared-volume | ||
| hostPath: | ||
| path: /storage-disk |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| apiVersion: apps/v1 | ||
| kind: DaemonSet | ||
| metadata: | ||
| name: data-serve-daemonset | ||
| labels: | ||
| app.kubernetes.io/name: data-serve | ||
| spec: | ||
| selector: | ||
| matchLabels: | ||
| app: data-serve | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: data-serve | ||
| spec: | ||
| tolerations: | ||
| # these tolerations are to have the daemonset runnable on control plane nodes | ||
| # remove them if your control plane nodes should not run pods | ||
| - key: node-role.kubernetes.io/control-plane | ||
| operator: Exists | ||
| effect: NoSchedule | ||
| - key: node-role.kubernetes.io/master | ||
| operator: Exists | ||
| effect: NoSchedule | ||
| containers: | ||
| - name: data-serve-container | ||
| image: dasbd72/data-serve:latest | ||
| imagePullPolicy: Always | ||
| ports: | ||
| - containerPort: 12347 | ||
| hostPort: 12347 | ||
| volumeMounts: | ||
| - name: shared-volume | ||
| mountPath: /shared | ||
| env: | ||
| - name: STORAGE_PATH | ||
| value: /shared | ||
| - name: HOST_IP | ||
| valueFrom: | ||
| fieldRef: | ||
| fieldPath: status.hostIP | ||
| - name: DATA_SERVE_PORT | ||
| value: "12347" | ||
| volumes: | ||
| - name: shared-volume | ||
| hostPath: | ||
| path: "/dev/shm" |