mirror of
https://github.com/openfaas/faas.git
synced 2025-06-09 16:56:47 +00:00
83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
// Copyright (c) Alex Ellis 2017. All rights reserved.
|
|
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
|
|
|
|
package handlers
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
|
|
"io/ioutil"
|
|
|
|
"github.com/alexellis/faas/gateway/metrics"
|
|
"github.com/alexellis/faas/gateway/requests"
|
|
"github.com/docker/docker/api/types"
|
|
"github.com/docker/docker/api/types/filters"
|
|
"github.com/docker/docker/client"
|
|
)
|
|
|
|
func MakeDeleteFunctionHandler(metricsOptions metrics.MetricOptions, c *client.Client) http.HandlerFunc {
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
|
|
req := requests.DeleteFunctionRequest{}
|
|
defer r.Body.Close()
|
|
reqData, _ := ioutil.ReadAll(r.Body)
|
|
unmarshalErr := json.Unmarshal(reqData, &req)
|
|
|
|
if (len(req.FunctionName) == 0) || unmarshalErr != nil {
|
|
log.Printf("Error parsing request to remove service: %s\n", unmarshalErr)
|
|
w.WriteHeader(http.StatusBadRequest)
|
|
return
|
|
}
|
|
|
|
log.Printf("Attempting to remove service %s\n", req.FunctionName)
|
|
|
|
serviceFilter := filters.NewArgs()
|
|
options := types.ServiceListOptions{
|
|
Filters: serviceFilter,
|
|
}
|
|
|
|
services, err := c.ServiceList(context.Background(), options)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
}
|
|
|
|
// TODO: Filter only "faas" functions (via metadata?)
|
|
var serviceIDs []string
|
|
for _, service := range services {
|
|
isFunction := len(service.Spec.TaskTemplate.ContainerSpec.Labels["function"]) > 0
|
|
|
|
if isFunction && req.FunctionName == service.Spec.Name {
|
|
serviceIDs = append(serviceIDs, service.ID)
|
|
}
|
|
}
|
|
|
|
log.Println(len(serviceIDs))
|
|
if len(serviceIDs) == 0 {
|
|
w.WriteHeader(http.StatusNotFound)
|
|
w.Write([]byte(fmt.Sprintf("No such service found: %s.", req.FunctionName)))
|
|
return
|
|
}
|
|
|
|
var serviceRemoveErrors []error
|
|
for _, serviceID := range serviceIDs {
|
|
err := c.ServiceRemove(context.Background(), serviceID)
|
|
if err != nil {
|
|
serviceRemoveErrors = append(serviceRemoveErrors, err)
|
|
}
|
|
}
|
|
|
|
if len(serviceRemoveErrors) > 0 {
|
|
log.Printf("Error(s) removing service: %s\n", req.FunctionName)
|
|
log.Println(serviceRemoveErrors)
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
} else {
|
|
w.WriteHeader(http.StatusOK)
|
|
}
|
|
|
|
}
|
|
}
|