mirror of
https://github.com/openfaas/faasd.git
synced 2025-06-09 00:16:46 +00:00
88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
package handlers
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import (
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"context"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"github.com/containerd/containerd"
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"github.com/containerd/containerd/namespaces"
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gocni "github.com/containerd/go-cni"
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"github.com/openfaas/faas-provider/types"
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faasd "github.com/openfaas/faasd/pkg"
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"github.com/openfaas/faasd/pkg/cninetwork"
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"github.com/openfaas/faasd/pkg/service"
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)
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func MakeUpdateHandler(client *containerd.Client, cni gocni.CNI, secretMountPath string, alwaysPull bool) func(w http.ResponseWriter, r *http.Request) {
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return func(w http.ResponseWriter, r *http.Request) {
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if r.Body == nil {
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http.Error(w, "expected a body", http.StatusBadRequest)
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return
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}
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defer r.Body.Close()
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body, _ := ioutil.ReadAll(r.Body)
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log.Printf("[Update] request: %s\n", string(body))
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req := types.FunctionDeployment{}
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err := json.Unmarshal(body, &req)
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if err != nil {
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log.Printf("[Update] error parsing input: %s\n", err)
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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name := req.Service
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function, err := GetFunction(client, name)
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if err != nil {
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msg := fmt.Sprintf("service %s not found", name)
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log.Printf("[Update] %s\n", msg)
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http.Error(w, msg, http.StatusNotFound)
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return
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}
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err = validateSecrets(secretMountPath, req.Secrets)
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if err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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}
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ctx := namespaces.WithNamespace(context.Background(), faasd.FunctionNamespace)
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if _, err := prepull(ctx, req, client, alwaysPull); err != nil {
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log.Printf("[Update] error with pre-pull: %s, %s\n", name, err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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if function.replicas != 0 {
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err = cninetwork.DeleteCNINetwork(ctx, cni, client, name)
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if err != nil {
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log.Printf("[Update] error removing CNI network for %s, %s\n", name, err)
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}
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}
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if err := service.Remove(ctx, client, name); err != nil {
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log.Printf("[Update] error removing %s, %s\n", name, err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// The pull has already been done in prepull, so we can force this pull to "false"
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pull := false
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if err := deploy(ctx, req, client, cni, secretMountPath, pull); err != nil {
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log.Printf("[Update] error deploying %s, error: %s\n", name, err)
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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}
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}
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