Files
faasd/pkg/provider/handlers/update.go
Carlos de Paula d49011702b Refactor faasd and faas-containerd merge
The use of containerd and CNI functions has been refactored to reuse
the same codebase.

Added all network functionality to own directory and package. Removed
netlink and weave library in favor of using CNI plugin result files.

Rename containers handler to functions to clear-up functionality.

Signed-off-by: Carlos de Paula <me@carlosedp.com>
2020-02-04 10:12:43 +00:00

80 lines
2.0 KiB
Go

package handlers
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
"github.com/alexellis/faasd/pkg/cninetwork"
"github.com/alexellis/faasd/pkg/service"
"github.com/containerd/containerd"
"github.com/containerd/containerd/namespaces"
gocni "github.com/containerd/go-cni"
"github.com/openfaas/faas-provider/types"
)
func MakeUpdateHandler(client *containerd.Client, cni gocni.CNI, secretMountPath string) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
if r.Body == nil {
http.Error(w, "expected a body", http.StatusBadRequest)
return
}
defer r.Body.Close()
body, _ := ioutil.ReadAll(r.Body)
log.Printf("[Update] request: %s\n", string(body))
req := types.FunctionDeployment{}
err := json.Unmarshal(body, &req)
if err != nil {
log.Printf("[Update] error parsing input: %s\n", err)
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
name := req.Service
function, err := GetFunction(client, name)
if err != nil {
msg := fmt.Sprintf("service %s not found", name)
log.Printf("[Update] %s\n", msg)
http.Error(w, msg, http.StatusNotFound)
return
}
err = validateSecrets(secretMountPath, req.Secrets)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
}
ctx := namespaces.WithNamespace(context.Background(), FunctionNamespace)
if function.replicas != 0 {
err = cninetwork.DeleteCNINetwork(ctx, cni, client, name)
if err != nil {
log.Printf("[Update] error removing CNI network for %s, %s\n", name, err)
}
}
containerErr := service.Remove(ctx, client, name)
if containerErr != nil {
log.Printf("[Update] error removing %s, %s\n", name, containerErr)
http.Error(w, containerErr.Error(), http.StatusInternalServerError)
return
}
deployErr := deploy(ctx, req, client, cni, secretMountPath)
if deployErr != nil {
log.Printf("[Update] error deploying %s, error: %s\n", name, deployErr)
http.Error(w, deployErr.Error(), http.StatusBadRequest)
return
}
}
}